CDC 2EX5X Communications-electronics Journeyman

1. Which statement describes a security feature of using fiber optic cables?

Easy to encrypt data

Low signal attenuation

Virtually impossible to tap a fiber optic cable unnoticed

Fiber optic cables are considerably smaller than metallic cable

2. With what values do we measure insulation resistance?

Amps or megamps

Millivolts or volts

Ohms or megohms

Milliwatts or watts

3. How many SMSgt 9-skill levels are there within the C-E Career Progression Ladder?

2

3

4

5

4. When are senior noncommissiooned officers required to have on-the-job training records?

When assigned to a new duty station

When the commander deems necessary

When assigned to a commander's staff position

When their skill level is not commensurate with their grade.

5. What is the minimum rank necessary to become a Task Certifier?

Senior Airman

Staff Sergeant

Technical Sergeant

Master Sergeant

6. How many hours of rest must a supervisor give personnel who remain overnight at a remote duty location?

A minimum of six hours

A maximum of six hours

A minimum of eight hours

A maximum of eight hours

7. What MIS replaced CAMS?

Reliability and Maintenance Information System (REMIS)

Integrated Maintenance Data System (IMDS)

Enterprise Data Warehouse (ERW)

Air Force Knowledge Services (AFKS)

8. When you use the Fluke 8025A, which voltage range do you select to measure 50 volts DC?

Volts AC

Volts DC

Millivolts AC

Millivolts DC

9. What maintenance activity is conducted during scheduled actions?

Deferred jobs

PMIs

Line replacement on equipment

Higher priortity maintenance

10. What certification is required before COTS systems and equipment are integrated with the current Local Area Network/ Metropolitan Area Network/ Wide Area Network infrastructure?

Unit commander approval

Certification of networthiness

A satisfactory Quaility Assurance inspection

System records incorporated into base blue print.

11. What are the components of a typical fiber optic cable?

Core and cladding

Cladding and protective coating

Core and protective coating

Core, cladding, and protective coating

12. When is an initial evaluation accomplished?

Within 60 days of assignment, 120 days for Air Reserve Component

Within 60 days of assignment, 90 days for Air Reserve Component

Within 120 days of assignment, 60 days for Air Reserve Component

Within 30 days of assignment, 60 days for Air Reserve Component

13. With the exception of Stripes for Exceptional Performer promotees and Air Reserve Component personnel, when do personnel who are selected for promotion to Staff Sergeant enter 7-level upgrade training?

1 January

1 April

1 June

1 September

14. What are the program objetives for unit self-sufficiency?

Improve mission cabilites by repairing equipment at lowest level

Reduce system downtime by delays in obtaining repair parts

Minimize transportation and handling cost

All of the Above

15. If there is a delay in maintenance actions, who mediates disagreements between the maintenance production work center and the operators when necessary?

Branch Chief

Unit Commander

Chief of Maintenance

Director of Operations

16. Which analog multimeter control compensates for the voltage of teh internal batteries when calibrating for resistance measurements?

Range switch

Voltage switch

Function switch

Zero ohms control

17. Low-insulation resistance between conductors can cause

High-attenuation, crosstalk, and noise

Fresnal reflection, disopersion, and scattering

High-impedance, capactiance, and rectification

Low-attenuation, electromagnetic immunity, and absorption

18. When using the AN/PSM-2 megger, how do you know you are applying the correct regulated output voltage?

Turn the hand-crank until an arc is present

Turn the hand-crank until the needle set has stopped moving

Turn the hand-crank and monitor the megger's output with another meter

Turn the hand-crank at a rate to keep the indicator lights at a steady glow.

19. What is the purpose of the JCN?

Assign job priority

Assign workcenter responsible for action

Servs as a unique identifier for each job

Determine the order in which jobs are to be completed

20. What condition status code is used for a no-go condition?

FMC

PMC

MC

NMC

21. What does Materiel Control do?

Coordinates with support agencies

Assist maintenace personnel by expediting all supply transactions

Liason between maintenance activity and LRS

All of the Above

22. What type of personnel evaluation is performed on newly assigned personnel within 6 months of assignment to the work center?

Primary

Follow-on

Special Mandatory

Special Optional

23. What serves as a unique identifier for tracking maintenance actions for an equipment malfunction?

Work Unit Code

How Malfunction

When Discovered

Job Control Number

24. What MIS is mandatory for documenting training when available?

Integrated Maintenance Data System

Reliability and Mainainablity Information System

Air Force Knowledge Services

Enterprise Data Warehouse

25. Which statement describes an advantage of using fiber optic cable?

The easy tap-ablility of fiber optic cables presents security risks

Fiber optic cable has a higher attenuation than coaxial cable

Electromagnetic fields do not affect fiber optic cables

Nuclear radiation does not affect fiber optic cable

26. Optic fibers are made of dielectric materials. How are fiber optic cables affected by electromagnetic interference?

Increases interference

Decreases interference

Loss of signal

Immune to interference

27. Which current range on the Fluke 8025A do you select to measure 250 milliamps AC?

Microamps DC

Microamps AC

Milliamps/ amp DC

Milliamps/ amp AC

28. What area of a digital storage oscilloscope takes digitized samples and performs numerous manipulations on the data including measuring rise and fall times, periods, time intervals, and math computations?

Microprocessor

Acquisition

Memory

Input

29. Which of these bit rates do you use for a bit error rate test on a 64 Kbps data circuit?

511 bps

9600 bps

64 Kbps

1.544 Mbps

30. What publications are available to establish effective safety standards for the COM?

AFOSHSTD 48-Series

AFOSHSTD 91-Series

TO 31Z-10-4, Appendix A

All of the above

31. Which tool is provided to the commander on a quarterly basis to review and evaluate maintenance and training effectiveness?

Training Visibility Ledger from Integrated Maintenance Data System

Unit Training Report from Logistics Module

Cross-reference data from Federal Logistics Information System

Air Tasking Order from Theater Battle Management Core System

32. Which items are considered support equipment?

Automated Test Sets

Defense Satellite Communications Systems

Theater Battle Management Core System

Theater Deployable Communications systems

33. What personnel evaluation is conducted to ensure technicians meet Federal Aviation Administration (FAA) proficiency requirments

Primary

Follow-on

Intercontinental Ballistic Missile communication

Air Traffic Control and Landing Systems certification

34. A 10 kHz modulating signal has enough peak voltage to cause a deviation of 30 kHz. What is the modulation index

5

0.5

0.3

3

35. What type of buffer allows the fiber optic cable to be twisted or pulled with little stress on the fiber?

Ribbon

Composite

Tight tube

Loose tube

36. What are the three components of Air Force On-the-Job Training?

Job Knowledge, Job proficiency, and job experience

Task knowledge, task performance, and task proficiency

Career Development Courses, Qualification Training Packages, and On-theJob Training

Career Field Education and Training Plan, Job Qualification Standards, and AF Form 623

37. What is the fuction of the MOC?

Direct support of the unit's operational mission

The management function of manpower and materiel in support of maintenance production

Both A and B

Only B

38. What maintenance staff function validates use of effective training programs, proven maintenance techniques, safety procedures, supply discipline, security procedures, and good housekeeping standards?

Materiel Control

Quality Assurance

Maintenance Operations Center

Maintenance Production Work Center

39. What purpose of modulation prevents interference when sharing the same communications path?

Spectrum conservation

Channel allocation

Ease of radiation

Companding

40. By using 16-PSK, how many bit combinations are allowed to be used

2

3

4

5

41. How effective is CRC at detection errors in most applications?

90%

93%

96%

99%

42. During a basic bit error rate testing procedure, an error signal is generated when

Any bit in the received signal is not the same as the timing bit

Any bit in the received signal is not the same as the generated bit

100 bits in the received signal are not the same as the timing bits

100 bits in the received signal are not the same as the generated bits

43. What is the minimum amount of months required for 5-skill level upgrade for trainess who are not in retraining staturs

6 months

9 months

12 months

15 months

44. What designation makes equipment reportable?

Mission capable

Single mission

Mission essential subsystem

Mission-essential

45. What personnel evaluation is conducted on newly asigned personnel within 6 months of assignment to the work center (within 12 months for traditional AFRC and ANG members only)?

Primary

Follow-on

Intercontinental Ballistic Missile Communications

Air Traffic Control and Landing Systems certification

46. When using foward error controls as a method or error correction, where does error correction take place?

Receiving end

In the oscillator

Transmitting end

In the primary buffers

47. Which feature of the Fluke 8025A locks the measurement into the display for viewing and automatically updates the display when you take a new measurement?

Rotary switch

Range push button

Power-up self-test

Touch-hold push button

48. What does a PAFSC show?

The highest skill level one has

The authorized manning position

Assignment and training purposes used by the AFPC

Previous AFSC held

49. How many primary Air Force Specialty Codes are in the Communications-Electronics career field?

Seven

Eight

Nine

Ten

50. What is considered a technical publication?

Special Publications and Commercial Manuals

TOs and workcards approved by the MOC

A & B

None of the Above

51. The relationship of the bandwidth required for double-sideband emitted carrier (DSBEC) AM to the bandwidth of the modulating signal of the AM bandwidth alone is

One-quarter of the modulating bandwidth

Four times the modulating bandwidth

Twice the modulating bandwidth

Half the modulating bandwidth

52. The most useful way to classify fiber optic cable is by

Fiber material and number of fibers

Buffer type and application method

Numerical aperture and cable elements

Refractive index profile and number of modes.

53. On the Fluke 8025A multimeter, which control do you use to select the meter's different measurement functions?

Range button

Rotary switch

Range switch

Hold button

54. Which oscilloscope probe is essentially just a shielded piece of wire?

Current probe

Passive 1:1 probe

Passive divider, 1:10 probe

Active field effect transistor probe

55. Where does the supervisor document all training events/trends?

Training Records

AF Form 623

Training Business Area

All of the above

56. How does the commander establish a COM and Maintenance Superintendent?

In writing

During a commanders call

By word of mouth

With approval of higher ranking individuals

57. Work center maintenance personnel on standby coordinate meal and comfort breaks with what maintenance staff function?

Material Control

Quality Assurance

Chief of Maintenance

Maintenance Operations Center

58. What designates equipment as reportable?

When it is mission capable

When it is mission-essential

When it is full- mission capable

When it is partial- mission capable

59. What are the six steps of Operation Risk Management?

Accept no unnecessary risk; assess the risk; analyze risk control measures; make control decisions; implement risk controls; supervisor and review

Identify the hazards; assess the risk; analyze risk control measures; make control decisions; implement risk control; supervisor and review

60. What purpose of modulation involves low frequency signals for transmission over long distances?

Spectrum conservation

Channel allocation

Ease of radiation

Companding

61. Non-uniform quantizing and companding decreases the length of the code word from___

11 to 7 bits

11 to 8 bits

16 to 7 bits

16 to 8 bits

62. When using vertical redundancy check, what significant does the amount of ones have in a data bit parity?

Determines parity

Determines transmission rate

Determines whether transmission is in ASCII format

Determines whether transmission is synchronous or ashynchronous

63. What component of a fiber optic cable provides the reflective surface that allows light to propagate?

Core

Buffer

Jacket

Cladding

64. The fiber cladding surrounds the core. What is its purpose?

To limit the amount of interference cause by EMI

Keep light loss to a minimum

Provide a reflective surface that allows light to propagate along the core

To minimize signal loss

65. What type of megohmmeter do you use on paper insulated conductor cable?

500 volts

1000 volt

1500 volt

2500 volt

66. Which mode of triggering an oscilloscope causes a trace to be drawn on the screen at all times, whether there is an input signal or not?

Auto

Norm

External

Source

67. In the internal clock generator section of a typical bit error rate test set, what generates the basic clock that probides all clock phases, and is periodically frequincy calibrated by a crystal controlled oscillator in the automatic calibration section?

VCO

Countdown

Code converter

DAC and decode range splitter

68. How is data handled with MIS?

Sensitive/ FOUO

Confidential

Secret

Top Secret

69. What condition status code is used for systems that are safely usable and can perform one or more but not all assigned missions because one or more of their mission-essential subsystem are inoperative for maintenance or supply reasons?

FMC

PMC

MC

NMC

70. Which personnel evaluation is conducted every 24 months and is used to verify the adequacy of the individual's continuation training program and to ensure technician proficiency is being maintained?

Primary

Follow-on

Special Mandatory

Special Optional

71. What do we consider to be a Maintenance Information System?

Logistics Module

Telephone Management System

Federal Logistics Information System

Theater Battle Management Core System

72. What level of maintenance is the most foward maintenance capability?

Organizational

Intermediate

Laboratory

Depot

73. What part of the pulse code modulation process converts a continuous time signal into a discrete time signal?

Sampling

Rectifying

Oscillating

Band Limiting

74. Define the term "digitization".

Converting a continuous time signal into a discrete time signal

Converting a discrete time signal into a continuous time signal

Converting a digital signal into an analog signal

Converting an analog signal into a digital signal

75. What are the major types of buffering designs in fiber optic cables?

Tight buffer tube, loose tube, and a ribbon

Tight buffer tube and ribbon only

Tight buffer tube and loose tube only

Loose tube only

76. Which AFSC position can range form 1,3,5,7, or 9 depending on the level of training and experience?

1st

3rd

4th

5th

77. What assigned maintenance responsibility provides an experienced managerial and technical perspective to the maintenance activity by advising and assisting the Chief of Maintenance?

Branch Chief

Unit Commander

Maintenance Supervisor

Maintenance Superintendent

78. What products help you to resolve due-out requisions?

Priority Monitor Report and Due-Out Validation List

D18, M30, and IMDS Supply subsystem Inquiry

Priority Monitor Report, D18 and M 30

All of the Above

79. What maintenance staff function is the focal point for the Corrosion Prevention and Control Program?

Materiel Control

Quality Assurance

Maintenance Operations Center

Maintenance Production Work Center

80. What Communications Standardizatin and Evaluation Program evaluation provides the unit commander, Chief of Maintenance, and supervisors with factual, objective assessments of a section's ability to meet its mission requirements?

Special

Technical

Personnel

Manageriel

81. What is an advantage of synchronous transmission over asynchronous transmission?

Reduces the overhead cost of data transmission

Increases the number of transmission

Reduces the number of errors per transmissions

Increase the transmission time

82. What results from the imperfections in an optical fiber's basic structure?

Absorption

Scattering

Reflection

Dispersion

83. Which of these data circuit speeds would normally use the shorter generated bit error rate (BER) test pattern lengths, and what is data circuit bit rate?

Low to intermediate, 1200 to 9600 bps

Low to intermediate, 9600 to 12Kbps

Higher speed circuits, 5000 to 64 Kbps

Higher speed circuits, 50Kbps to 64 Kbps

84. Who is a trained and qualified person who teaches personnel to perform a specific task through OJT methods?

Trainee

Trainer

Certifier

Supervisor

85. What condition status code is not used for equipment with a single mission?

FMC

PMC

NMCM

NMCS

86. What maintenance staff function coordinates with support agencies and assists maintenance personnel by expediting all supply transactions

Materiel Control

Quality Assurance

Maintenance Operations Center

Maintenance Production Work Center

87. What term has an Expendability, Recoverability, Repairablity Code (ERRC) of XD(x) or XF(x)?

Due- Out

Awaiting Parts

Due in From Maintenance

Equipment Inoperative for Parts

88. The output of the oscillator in FM modulator increases in frequency with each _____

Positive half cycle of the carrier

Negative half cycle of the carrier

Positve half cycle of the modulating signal

Negative half cycle of the modulating signal

89. What is the formula to find the modulating index?

Deviation/Frequency

Deviation x Frequency

Sideband/Modulating Frequency

Sideband x Modulating Frequency

90. By using 8-PSK instead of binary phase shift keying, information capacity is increased ___

Twice

Three times

Four times

Five times

91. Propagation of light as seen by Snell's law is known as ____

Total internal reflection

Refraction of light

Light wavelenghts

Rays of incidence

92. Optical fibers are normally composed of what materials?

Glass or silica

Plastic-clad silica

All Plastic

All of the above

93. On the Simpson 260 Multimeter, what is not a function of the range switch?

Voltage

Power

Current

Resistance

94. Which circuit jacks get the most usage?

COMMON jacks

OUTPUT jack

50 microampere jack

10 amperes jacks

95. How are voltage, time, and depth represented on the oscilloscope display?

Voltage = intensity, time = vertical axis, and depth = horizontal axis

Voltage = intensity, time = horizontal axis, and depth = vertical axis

Voltage = horizontal axis, time = vertical axis, and depth = intensity

Voltage = vertical axis, time= horizontal axis, and depth = intensity

96. In acquiring a 4K record length on a digital storage oscilloscope, how many samples can you view at one time?

1000

2000

3000

4000

97. What is the difference between UGT and QT

Both UGT and QT is the training that leads to the award of a higher skill level.

98. What status is the same as Estimated Time In Commission?

Estimated Time of Repair

Estimated Time of Arrival

Estimated Time of Return to Operation

Estimated Time of Expected Maintenancd

99. What publication guide work center safety practices?

Safety Binder

48-series and 91-series Air Force Occupational and Environmental Safety

Unit Commanders directives

Operational Risk Management

100. Who determines the maximum amount of deviation in FM

Unit Commander

MAJCOM

FCC

FAA

101. In which type of circuit would you measure the AC component of an output voltage where both AC and DC voltage levels exist?

Filter

Resonant

Amplifier

Differential

102. Which is not a selection for resistance measurements?

R X .1

R x 1

R x 100

R x 10,000

103. Where do you set the function switch for measuring resistance?

AC

+ DC

- DC

+/- DC

104. Insulation resistance increases if

Length of insulation increases

Area of the conductor increases

Thickness of the insulatin material increases

Both thicknes and lenght of insulating material increases

105. Sampled data points are stored in teh memory of a digital storage oscilloscope as

Sequential records

Waveform points

Record lengths

Record points

106. What type of sampling does a digital storage oscilloscope normally use on singe-shot or seldom-occuring signals?

Sequential

Repetitive

Real-time

Random

107. What pattern simulator section of the bit error rate test set converts teh NRZ-L data into the desired coding, such as NRZ-M?

Data drivers

Code converter

PRN generator

External data comparator

108. What does a DAFSC identify?

The highest skill level one has

The authorized manning position

Assignment and training purposes used by the AFPC

Previous AFSC held

109. What course directly supports the SKT portion of the WAPS test?

Career Development Course

Specialty Training Standard

On-the-Job Training

Professional Development Guide

110. What ranks are required to have OJT records?

AB to TSgt

SNCO's in retraining status

When skill level is not commensurate with their grade and duty AFSC

All of the above

111. What does CSEP consist of?

Personnel, technical, and managerial evaluation

Technical and managerial evaluations

Personnel and technical evaluations

Personnel and managerial evaluations

112. What information system does Materiel Control use to cross-reference part numbers to NSNs?

IMDS

Technical Orders (TOs)

Federal Logistics (FEDLOG)

Logistic Readiness Squadrons database

113. What two error detection methods, when used together, are 98 percent effective in detecting errors?

Checksum and cyclic redundancy check

Longitudinal redundancy check and checksum

Cyclic redundancy check and vertical redundancy check

Vertical redundancy check and Longitudinal redundancy check

114. What error detection method is used for checking a data block greater than 512 and is about 99 percent effective in most applications?

Checksum

Cyclic redundancy check

Vertical redundancy check

Longitudinal redundancy check

115. What part of an ATM transmission tells the receiving device that a character is coming and that the character has been sent?

Parity bit

Channel idle state

Eight bits that represent an ASCII-coded character

Start and Stop bit

116. What logarithmic expression do we use to specify the ratio of power loss in fiber optic cables?

DB/nm

DB/km

DB/cm

DB/m

117. Which probe lets you use the oscilloscope to measure higher voltage levels, raises the input impedance, does not require a bias voltage, and attenuates noise?

Current probe

Passive 1:1 probe

Active (FET) probe

Passive divider, 10:1 prove

118. Which probe does not need to actually make contact with teh circuit under test?

Current probe

Passive 1:1 probe

Active (FET) probe

Passive divider, 10:1 probe

119. What type of Air Force Specialty Code is for use by the Air Force Personnel Center for assignment and training purposes?

Duty

Control

Primary

Alternate

120. When is the selection of staff or supervisory position done?

When there is a need of personnel

On a schedule rotation

When mission capability is at 100 percent

When the required skill level is commensurated with their grade

121. To identify methods for sustaining of non-AFMC SM supported COTS systems and equipment, what is required?

Logistics Support Plan (LSP)

Resources Support Plan

Supply Support Plan

Maintenance Planning

122. What are QA personnel required to do?

Perform as an advisor, teacher and confidant to maintenance personnel

To evaluate maintenance requirements and direct timely corrective actions with assistance from maintenance work centers

Advise maintenance managers of the overall supply situation as it affects maintenance and recommend ways to improve supply support

123. Who is responsible for the operation of Integrated Maintenance Data System?

Every User

The host database manager

The Maintenance Operations Center

The Maintenance Production Work Center

124. How does synchronous transmission reduce the overhead costs of data transmission?

Communicates in parallel format

Blocks many characters together for transmissions

Eliminates the control bits, so more message data can be sent

Equipment to support synchronous transmission is far less expensive

125. How do you place multimeter test leads in a circuit to measure voltage?

Series

Parallel

Series-Parallel

Parallel-Parallel

126. Which information in the display section of the Fluke 8025A shows the absolute value of the input?

Digital

Annunciator

Range Indicator

Analog Bar Graph

127. What must MOC personnel be able to do?

Evaluate maintenance requirements and direct timely corrective actions

Expediate all supply transactions

Have the quailification on the item being inquired

None of the Above

128. What does maintenance planning address?

Facilites, level of repair, TOs and test equipment

Manpower, test equipment, TOs, and spare parts needed

Facilites, level of repair, manpower, spare parts needed

Facilities, manpower, test equipment, TOs, level of repair, and spare parts needed

129. Who maintains system records of equipment that are integrated with base network?

System Administrator

Computer Systems Secuity Officer

Communications and Information Systems Officer

Systems Telecommunications Engineering Management-Base

130. What programs's primary objective gives the Chief of Maintenance an accurate assessment of the maintenance activity's capabilities?

Logistitc Support Plan

Defense Support Plan

On-the-Job Training Program

Communications Standardization and Evaluation Program

131. How can multiple individual assignments be put together for multiple duty positions, including additional duties?

They can be put together into an Individual Training Plan

They can be put together into a Specialty Training Plan

They can be put together into an Air Force Job Qualification Standard

They can be put together into an Air Force Qualification Training Package

132. When considering light wave propagation, the normal is an imaginary line perpendicular to the interface of two materials. The angle between the normal in the first material and the ray that is bounced back in the first material i called the ____

Angle of refraction

Angle of incidence

Angle of reflection

Critical angle

133. On the bit error rate test set, the 25-pin connectors are designed to operate with data

Simplify connection of test equipment to the modem under test and to transmit the test pattern

Isolate test equipment from the data circuit under test and to transmit the test pattern

134. For what is the single manager (SM) responsible?

Equipment logistics life cycle management and Operation Safety, Suitability, and Effectiveness (OSS&E)

The element that assists direct managers in a systematic approach to resolving communications systems and equipment sustainability problems

Determines the inherent supportability of the mission equipment

Consolidated the relationship of logistics related design parameters to readiness and support resource requirments

135. Which method assigns amplitude values based on an equal amplitude range?

Uniform quantization

Non-uniform quantization

Asynchronous quantization

Synchronous quantization

136. How does synchronous transmission differ from asynchronous transmission?

Synchronous transmit bits one at a time, a synchronous transmit bits in blocks

Synchronous transmits bits into blocks, asynchronous transmits one block at a time

Synchronous can transmit on bit at a time or transmit bits into a block

Asynchronous can transmit on bit at a time or transmit bits into a block

137. When using checksum method of error detection, what binary number is used to divide the sum of all the characters in order to derive the checksum?

112

225

255

552

138. How does a fiber reach equilibrium-mode distribution?

Over a short time

Over a short distance

Over a long time

Over a long distance

139. How are optical fibers generally classified?

By material composition

Number of modes

The core's refractive index profile

B&C

140. What happens to light when it passes from a higher-index material to a lower one?

Reflected backwards

Bent away from the normal

Colors of light become visible

Light is no longer visible

141. How do you place the test leads in a circuit to measure current?

Series

Parallel

Series-Parallel

Parallel- Parallel

142. What condition status code indicates that systems and equipment are not capable of performing any of their assigned missions because of maintenance work stoppage due to a supply shortage?

PMC

NMC

NMCM

NMCS

143. What are the three phases that are evaluated in a personnel evaluation

Preparation, task performance, and post performance

Preparation, task knowledge, and task performance

Job knowledge, task knowledge, and post performance

Job knowledge, job performance, post performance

144. Define sampling

Converting a continuous time signal into a discrete time signal

Converting a discrete time signal into a continuous time signal

Converting a digital signal into an analog signal

Converting an analog signal into a digital signal

145. When does the 8025A perform a power-up self test?

When the rotary switch is moved to a new position

When the rotary switch is moved to any position from the OFF position

When the rotary switch is moved back to the off position from any position

When the rotary switch is turned to the ON position

146. What factors must a supervisor take into consideration when extending duty hours?

Weather and road conditions

Travel time to and from duty location

Standby and being on-call

Meals and breaks

147. What does support equipment consist of?

Systems and subsystems only

Maintenance equipment, tools, and test equipment only

Automated Test Sets only

All equipment required to support the operations and maintenance of the mission

148. How does the rate of deviation relate to the frequency of the modulating signal?

Directly proportional

Inversly proportional

Rate of deviation is twice the frequency

Rate of deviation is half of the frequency

149. What is the first step in the pulse code modulation process?

Discrete amplitudes are assigned to the sampling pulses

A binary code number is assigned to the sample

The quantizer limits the amplitude of the pulse

The analog signal is limited

150. What is even parity?

Even number of 1s

Even number of 0s

Even number of binary placements

Number of 1s and number of 0s are equal

151. Photon particles are a part of what spectrum?

Visible light spectrum

Audio spectrum

Electromagnetic spectrum

Subsonic spectrum

152. Which pattern simulator section of a bit error rate test set controls the clock selector and selects either the external clock or the internal clock for processing?

Clock drivers

Code converter

Data/sync selector

Data/clock select encoder

153. Which AFSC technician maintains secure and non-secure computer systems, cryptographic equipment and network infrastructure in fixed and deployed environments?

2E1X2

2E1X3

2E1X4

2E2X1

154. Who is responsible for maintenance quality and equipment reliability?

All personnel

Materiel Control

Maintenance Operations Center

Maintenance Production Work Center

155. What is a significant sideband?

Sidebands carring more than 0.5% of the total output power

Sidebands carring more than 0.1% of the total output power

Sidebands carring more than 1% of the total output power

Sidebands carring more than 5% of the total output power

156. What is the Nyquist sampling rate?

Half the highest frequency

Twice the highest frequency

3 times the highest frequency

4 times the highest frequency

157. Why do we use the metric system to measure fiber optics?

New universal standard for measurements

FO dimensions,weights, and frequencies are very small or very large

Easier conversion rate

Standard measurement for FO

158. What pattern simulator section of the bit error rate test set accepts a 48-bit parallel word and generates a serial pattern?

PRN generator

PRN comparator

48-bit transmitter only

48-bit register and 8-bit word display

159. Name the two methods of quantization.

Asynchronous and non-uniform

Synchronous and uniform

Synchronous and asynchronous

Uniform and non-uniform

160. What type of fiber has a core diameter of 50-125 micrometers and consists of numerous concentric layers of glass, something like the annular rings of a tree configured to reduce dispersion?

Single-mode step-index fiber

Single-mode graded-index fiber

Multimode step-index fiber

Multimode graded-index fiber

161. Which AFSC technician deploys, operates, and maintains ground-based radio frequency wireless communications systems to include amplitude modulation, frequency modulation, single sideband transmitters, receivers, transceivers, and related equipment?

2E1X2

2E1X3

2E1X4

2E2X1

162. What is not given if a maintenance activity has an enlisted COM?

Maintenance Supervisor

Branch Chiefs

Maintenance Superintendents

Enlisted COMs are not authorized

163. What publication directs the use MIS data management while maintaining C-E equipment?

AFI 36-2903

AFI 36-2201

AFI 21-116

AFMAN 36-2108

164. How often are managerial evaluations performed?

Every 6 months

Every 12 months

Every 18 months

When first arriving to a new duty location

165. What element of deployed maintenance management assists in coordinating the transfer of Unit Type Code assets and Readiness Supply Packages?

Deployed Materiel Control

Deployed Quality Assurance

Deployed Maintenance Operations Center

Deployed Maintenance Production Work Center

166. How do we measure dispersion?

Ns/km

Ms/km

Ns/m

Ms/m

167. Which digital storage oscilloscope button controls all waveforms displaed in the STORE mode?

CURSORS control

MEMORY control

SELECT C1/C2 switch

SAVE/CONTINUE switch

168. What is another name for repair cycle asset?

ERRC

Mission essential equipment

Due-in for Maintenance

Equipment Inoperative for Parts

169. Which personnel evaluation is performed when technicians are reassigned back to an ATCALS work center from a staff position and 6 months or more have elapsed since leaving the work center?

Primary

Follow-on

Special Mandatory

Special Optional

170. Name the part of the AM carrier that varies according to the modulating signal?

Amplitude

Frequency

Amplitude and Frequency

Neither the Amplitude or Frequency

171. In PM, the carrier's ___

Phase is shifted at the rate of the modulating signal

Phase shifted with the phase of the modulating signal

Amplitude is shifted at the rate of the modulating signal

Amplitude is shifted with the phase of the modulating signal

172. What is the relationship between modulation index and sideband power?

Equal to one another

The higher the sideband power , lower the modulation index

The lower the sideband power , higher the modulation index

The higher the sideband power, higher the modulation index

173. What is the most common use of fiber optics?

Transmission line

Light display

Use in new buildings

All of the above

174. Which of the following is not information that is present on the Fluke 8025A multimeter display?

Visual annunciators

Range indicator

Analog bar graph

Remaning power

175. What type of display does the oscilloscope present?

Voltage vs. time

Voltage vs. amplitude

Frequency vs.time

Frequency vs. intensity

176. Which AFSC position identifies a specific AFSC?

1st

3rd

4th

5th

177. Which condition status code is the sum of other statuses for purposes of reporting to Office of the Secretary of Defense?

FMC

PMC

MC

NMC

178. What can the work center supervisor use to know who is qualified to do certain tasks?

Emails from the training monitor of everyones qualifications

Local computer product format

IMDS Training Visility Ledger

B and C

179. Which personnel evaluation samples maintenance technicians maintaining a new system that has been assigned to the work center, or when major modifications significantly affect maintenance procedures?

Primary

Follow-on

Special Mandatory

Special Optional

180. When are technical evaluations most effective?

Every year on a scheduled basis

During a scheduled maintenance

Performed shortly after scheduled maintenance

Right after training is completed

181. What maintenance staff function ensure all required Time- Compliance Technical Order kits and time change items are promptly requisitioned, delivered to maintenance, and actions are accomplished?

Materiel Control

Quality Assurance

Maintenance Operations Center

Maintenance Production Work Center

182. What element of deployed maintenance management assigns predeployment inspection Job Control Number(s) for tasked equipment Unit Type Code(s)?

Deployed Materiel Control

Deployed Quality Assurance

Deployed Maintenance Operations Center

Deployed Maintenance Production Work Center

183. What are MISCAPs?

Specific capabilities the UTC(s) can provide

A listing of Manpower needed

A listing of Equipment needed

A potential unit capability focused upon accomplishment of a specific mission that the military service component provides

184. What is the first step in the basic bit error rate testing procedure?

185. Which AFSC technicians deploy, operate, and maintain ground based satellite and Beyond Line-of-Sight BLOS wideband communications, telemetry and instrumentation systems?

2E0X1

2E1X1

2E1X2

2E1X3

186. Which category of maintenance permits an effective span of control enabling the COM to coordinate and direct the maintenance effort with either a seperate maintenance staff or a consolidated maintenance staff (e.g., combined MOC and QA functions)?

Category I

Category II

Category III

Category IV

187. What is a UTC?

Specific Capabilities a MISCAP can provide

A potential unit of capability focused upon accomplishment of any mission that the military service component provides

A potential unit of capability focused upon accomplishment of a specific mission that the military service component provides

A list of equipment needed

188. With ATM, what is the length of each transmission unit?

One block with 5 characters

One character only

5 blocks with 5 characters

10 blocks with 5 characters

189. Which is the primary means of measuring the quality of transmitted digital information, and how is this means derived?

Bit error rate (BER), the ratio of teh number of bits in error to total number of bits transmitted

Bit error rate (BER), the difference between the number of bits transmitted and the total number of bits received

Distribution of errors, the ratio of the number of bits in error to total number of bits transmitted

Distribution of errors, the difference between the number of bits transmitted and the total number of bits received

190. What condition status code indicates that systems and equipment are not capable of performing any of their assigned missions because of unit level maintenance requirments?

MNCM

NMCS

NMC

MC

191. With whom does Materiel Control coordinate to esnure all required TCTO kits and time change items are promptly requisitoned and delivered to maintenance?

Logistic Readiness Squadron

Single Manager

Unit Commander

Quality Assurance

192. What must we do first to radiate a signal over long distances?

Increase the signal power

Decrease the frequency

Change them to analog

Change them to digital

193. What is the main disadvantage of DSBEC AM?

Power is needed for the carrier signal which carries no information

Power is needed for the modulating signal which carries no information

Power is needed for the lower sideband which carries no information

Power is needed for the upper sideband which carries no information

194. What is ARQ?

The transmitter automatically retransmits the signal to the receiver for verification of correct transmission

The receiver automatically sends a retransmittal request to the sender if an error is detected in a receive frame

The receiver automatically sends a retransmittal request to the sender after receiving all of the transmittion

The transmitter automatically automatically sends the singal to the receiver if an error is detected in a receive frame

195. What type of fiber is the least efficient, with the highest dispersion and has a core diameter of 30um to over 800um?

Single-mode step-index fiber.

Single-mode graded-index fiber.

Multimode step-index fiber

Multimode graded-index fiber

196. What is the maximum amount of continuous AC current that you can measure with the Fluke 8025A multimeter?

5 amps

10 amps

15 amps

20 amps

197. On the AN/PSM-2 megger, why are the test leads so long?

For safety

For extended reach

To test two piece of equipment at the same time

All of the above

198. What is the purpose of deficiency analysis?

Improve mission cabilites by repairing equipment at lowest level

To determine the real, underlying cause of deficiencies

To determine where the most deficiences happen

To determine the best way to resolve dificiences

199. What part of the bandwidth of a DSBEC signal carries the information signals?

Carrier

Modulating signal

Sidebands

All of the Above

200. In which category of maintenance are units authorized 80 or more personnel for maintenance production work center?

Category I

Category II

Category III

Category IV

CDC 2EX5X Communications-electronics Journeyman

1. Which statement describes a security feature of using fiber optic cables?

2.

What first name or nickname would you like us to use?

2. With what values do we measure insulation resistance?

3. How many SMSgt 9-skill levels are there within the C-E Career Progression Ladder?

4. When are senior noncommissiooned officers required to have on-the-job training records?

5. What is the minimum rank necessary to become a Task Certifier?

6. How many hours of rest must a supervisor give personnel who remain overnight at a remote duty location?

7. What MIS replaced CAMS?

8. When you use the Fluke 8025A, which voltage range do you select to measure 50 volts DC?

9. What maintenance activity is conducted during scheduled actions?

10. What certification is required before COTS systems and equipment are integrated with the current Local Area Network/ Metropolitan Area Network/ Wide Area Network infrastructure?

11. What are the components of a typical fiber optic cable?

12. When is an initial evaluation accomplished?

13. With the exception of Stripes for Exceptional Performer promotees and Air Reserve Component personnel, when do personnel who are selected for promotion to Staff Sergeant enter 7-level upgrade training?

14. What are the program objetives for unit self-sufficiency?

15. If there is a delay in maintenance actions, who mediates disagreements between the maintenance production work center and the operators when necessary?

16. Which analog multimeter control compensates for the voltage of teh internal batteries when calibrating for resistance measurements?

17. Low-insulation resistance between conductors can cause

18. When using the AN/PSM-2 megger, how do you know you are applying the correct regulated output voltage?

19. What is the purpose of the JCN?

20. What condition status code is used for a no-go condition?

21. What does Materiel Control do?

22. What type of personnel evaluation is performed on newly assigned personnel within 6 months of assignment to the work center?

23. What serves as a unique identifier for tracking maintenance actions for an equipment malfunction?

24. What MIS is mandatory for documenting training when available?

25. Which statement describes an advantage of using fiber optic cable?

26. Optic fibers are made of dielectric materials. How are fiber optic cables affected by electromagnetic interference?

27. Which current range on the Fluke 8025A do you select to measure 250 milliamps AC?

28. What area of a digital storage oscilloscope takes digitized samples and performs numerous manipulations on the data including measuring rise and fall times, periods, time intervals, and math computations?

29. Which of these bit rates do you use for a bit error rate test on a 64 Kbps data circuit?

30. What publications are available to establish effective safety standards for the COM?

31. Which tool is provided to the commander on a quarterly basis to review and evaluate maintenance and training effectiveness?

32. Which items are considered support equipment?

33. What personnel evaluation is conducted to ensure technicians meet Federal Aviation Administration (FAA) proficiency requirments

34. A 10 kHz modulating signal has enough peak voltage to cause a deviation of 30 kHz. What is the modulation index

35. What type of buffer allows the fiber optic cable to be twisted or pulled with little stress on the fiber?

36. What are the three components of Air Force On-the-Job Training?

37. What is the fuction of the MOC?

38. What maintenance staff function validates use of effective training programs, proven maintenance techniques, safety procedures, supply discipline, security procedures, and good housekeeping standards?

39. What purpose of modulation prevents interference when sharing the same communications path?

40. By using 16-PSK, how many bit combinations are allowed to be used

41. How effective is CRC at detection errors in most applications?

42. During a basic bit error rate testing procedure, an error signal is generated when

43. What is the minimum amount of months required for 5-skill level upgrade for trainess who are not in retraining staturs

44. What designation makes equipment reportable?

45. What personnel evaluation is conducted on newly asigned personnel within 6 months of assignment to the work center (within 12 months for traditional AFRC and ANG members only)?

46. When using foward error controls as a method or error correction, where does error correction take place?

47. Which feature of the Fluke 8025A locks the measurement into the display for viewing and automatically updates the display when you take a new measurement?

48. What does a PAFSC show?

49. How many primary Air Force Specialty Codes are in the Communications-Electronics career field?

50. What is considered a technical publication?

51. The relationship of the bandwidth required for double-sideband emitted carrier (DSBEC) AM to the bandwidth of the modulating signal of the AM bandwidth alone is

52. The most useful way to classify fiber optic cable is by

53. On the Fluke 8025A multimeter, which control do you use to select the meter's different measurement functions?

54. Which oscilloscope probe is essentially just a shielded piece of wire?

55. Where does the supervisor document all training events/trends?

56. How does the commander establish a COM and Maintenance Superintendent?

57. Work center maintenance personnel on standby coordinate meal and comfort breaks with what maintenance staff function?

58. What designates equipment as reportable?

59. What are the six steps of Operation Risk Management?

60. What purpose of modulation involves low frequency signals for transmission over long distances?

61. Non-uniform quantizing and companding decreases the length of the code word from___

62. When using vertical redundancy check, what significant does the amount of ones have in a data bit parity?

63. What component of a fiber optic cable provides the reflective surface that allows light to propagate?

64. The fiber cladding surrounds the core. What is its purpose?

65. What type of megohmmeter do you use on paper insulated conductor cable?

66. Which mode of triggering an oscilloscope causes a trace to be drawn on the screen at all times, whether there is an input signal or not?

67. In the internal clock generator section of a typical bit error rate test set, what generates the basic clock that probides all clock phases, and is periodically frequincy calibrated by a crystal controlled oscillator in the automatic calibration section?

68. How is data handled with MIS?

69. What condition status code is used for systems that are safely usable and can perform one or more but not all assigned missions because one or more of their mission-essential subsystem are inoperative for maintenance or supply reasons?

70. Which personnel evaluation is conducted every 24 months and is used to verify the adequacy of the individual's continuation training program and to ensure technician proficiency is being maintained?

71. What do we consider to be a Maintenance Information System?

72. What level of maintenance is the most foward maintenance capability?

73. What part of the pulse code modulation process converts a continuous time signal into a discrete time signal?

74. Define the term "digitization".

75. What are the major types of buffering designs in fiber optic cables?

76. Which AFSC position can range form 1,3,5,7, or 9 depending on the level of training and experience?

77. What assigned maintenance responsibility provides an experienced managerial and technical perspective to the maintenance activity by advising and assisting the Chief of Maintenance?