Z3D152 Volume 2

1. Which application layer protocol is used to synchronize the clocks of computers on a network?

Simple Network Management Protocol (SNMP)

Dynamic Host Configuration Protocol (DHCP)

Network Time Protocol (NTP)

Packet Internet Groper (PING)

2. Which of the following is an example of a video compression standard?

Motion Picture Experts Group-4 (MPEG-4)

Joint Photographic Experts Group (JPEG)

File Transfer Protocol (FTP)

G.711

3. Which topology defines the way in which devices communicate and data is transmitted throughout the network?

Physical

Logical

Hybrid

Star

4. The three cornerstones of voice network system security are availability,

Circumvention, and confidentiality.

Circumvention, and disclosure.

Confidentiality, and integrity.

Disclosure, and integrity.

5. What should security policies encompass to help mitigate the threat of convergence?

Data networks only

Voice networks only

Both voice and data networks

Neither voice nor data networks

6. Which topology has the stations connected in the form of a circle?

Bus

Ring

Star

Hybrid

7. What are attempts to gain access to a switch system by posing as an authorized user?

Toll fraud

War dialing

Masquerades

Denial of service

8. What allows transportation of all active Virtual LANs (VLAN) between switches using a single physical link?

VLAN trunks

VLAN frames

VLAN links

VLAN ports

9. In binary synchronous protocol, which characters establish and maintain character synchronization prior to the message block and during transmission?

SEQ

SYN

STX

EST

10. Which data communication protocol is based on bits and the position of the bits?

Character-oriented

Bit-oriented

Network

Routing

11. A Management Information Base (MIB) is a collection of information that is organized...

Alphabetically

Hierarchically

Numerically

Objectively

12. Simple Network Management Protocol (SNMP) is a tool used by network administrators to manage network performance, investigate and solve network problems and help plan for...

Future growth.

Network security.

Remote monitoring.

Network contingencies.

13. Internet Protocol version 6 (IPv6) addresses are represented by...

8 groups of dotted decimal numbers.

8 groups of hexadecimal numbers.

4 dotted decimal numbers.

128 decimal numbers.

14. The primary reason you should measure the voltage across faulty terminal protectors before removing and replacing them is to...

Verify the circuit is not in use.

Prevent interruptions to critical circuits.

Ensure dangerous voltages are not present on the line.

Avoid activating alarm circuits on the voice network system.

15. Which routing protocol do internet backbones use?

Border Gateway Protocol (BGP)

Open Shortest Path First (OSPF)

Routing Information Protocol (RIP)

Enhanced Interior Gateway Routing Protocol (EIGRP)

16. In an Intrusion Detection System (IDS), what is the main purpose of a boundary fence?

Facilitate the detection of intruders

Keep wildlife out of the perimeter detection zone

Provide security forces personnel a safe place to work

To present a physical and physiological deterrent to unauthorized entry

17. Which agency is the perferred transport provider for Internet and commercial satellite connections used for voice, video and/or data services on DOD networks?

Commercial providers

National Security Agency (NSA)

Air Force Space Command (AFSPC)

Defense Information Systems Agency (DISA)

18. Which network Class has the most addresses for hosts?

A

B

C

D

19. What type of signal is sent to the fence protection system (FPS) signal processor when an alarm is detected?

Alternating current (AC)

Direct current (DC)

Digital

Analog

20. Which statement best describes a binary with eight-zero substitution (B8ZS) signal?

The information is transmitted in three different voltage levels.

A logic one is transmitted as positive voltage if the previous logic one was negative.

The level always returns to zero for 50 percent of the bit cycle after every transition.

Bipolar violations are intentionally inserted into a data signal to break up long strings of zeros.

21. What identifier differentiates one wireless local area network (WLAN) from another?

Hostname

Network name

Service Set Identifier (SSID)

Virtual LAN Identifier (VLAN ID)

22. What is most commonly used in data systems to express signaling speed?

Baud rate

Interface speed

Bits per second

Baud per second

23. In common associated signaling (CAS), what is the seventh bit in frames 6 and 12 used for?

Bit robbing

Bit stuffing

Frame correction

Frame enhancement

24. Which network layer protocol matches a known Internet Protocol (IP) address for a destination device to a Media Access Control (MAC) address?

IP

Address Resolution Protocol (ARP)

Reverse Address Resolution Protocol (RARP)

Internet Control Message Protocol (ICMP)

25. Which device has multiport connectivity that directs data between nodes on a network?

Bridge

Router

Gateway

Repeater

26. Which interior intrusion detection system (IIDS) sensor uses heat radiation to detect intruders?

Ultrasonic

Microwave

Passive infrared

Dual-phenomenology

27. Which topology combines two or more different physical topologies in a single network?

Bus

Ring

Star

Hybrid

28. Which device subdivides a network into smaller logical pieces, or segments?

Switch

Firewall

Gateway

Repeater

29. In what type of digital signal does the signal level move to one of the discrete signal levels, but returns to the zero level after a predetermined time?

Non-return-to-zero (NRZ) level

NRZ mark

NRZ space

Return-to-zero

30. Individual pulses within a digital signal are...

Bits.

Bytes.

Codes.

Blocks.

31. Which transport layer protocol provides reliable data delivery services?

Internet Protocol (IP)

User Datagram Protocol (UDP)

Transmission Control Protocol (TCP)

Internet Control Message Protocol (ICMP)

32. Virtual Private Networks (VPNs) allow the AF to extend network resources acrss a/an...

Department of Defense network

Air Force network

Local area network

Public network

33. In an Intrusion Detection System (IDS), what must a line of detection detect?

Walking, running, rolling, crawling, or jumping through the line of detection.

Walking, running, rolling, crawling, or jumping outside the line of detection.

Potential for intruder to bypass the system.

Possibility of equipment failures.

34. Who determines if Preventative Maintenance Inspections (PMI) are accomplished when commercial manuals or publications are not available?

Flight Commander

Manufacturer

Technician

NCOIC

35. How many subnet bits are required to support 90 subnets on a Class B network?

Three

Five

Seven

Nine

36. Teredo has four tunneling components. Which one is not one of them?

Host-specific relay

Client

Server

Agent

37. Which router port is used for initial configuration?

Auxiliary

Console

Ethernet

Telnet

38. If the circuit files are lost or destroyed, what document are Technical Control Facilities required to obtain?

The latest telecommunications service order (TSO) that reflects the current end-to-end circuit configuration

The original TSO and the original circuit test data

The latest TSO and the latest circuit test data

The original TSO that established the circuit

39. Which physical security action can you take to ensure network equipment supports the widest range of security services?

Configure the equipment with the maximum amount of memory possible

Configure the equipment to use a line console password

Power cycle the equipment at the end of the day

Configure the equipment using setup mode

40. Which network layer protocol provides messaging that can help with troubleshooting?

Internet Protocol (IP)

Address Resolution Protocol (ARP)

Reverse Address Resolution Protocol (RARP)

Internet Control Message Protocol (ICMP)

41. What web application is used to order telecommunications products and services from the Defense Information Systems Agency (DISA)?

DISA Direct Order Entry (DDOE)

Facility Circuit Information Tracking (FaCIT)

Cyberspace Infrastructure Planning System (CIPS)

Telecommunications Certifications Office Support System (TCOSS)

42. What document is the authority for the operations and maintenance agencies to procure specific devices and ancillary equipment necessary for the installation or operation of the circuit?

Request for service

Service acquisition message

Telecommunications service order

Telecommunications service request

43. Which Digital Multiplex System (DMS)-100 database facility is responsible for creating and maintaining tables of data in a controlled manner?

Journal file

Table control

Dump/restore

Pending order file

44. What type alarm a=occurs if the sensor post cover in vertical taut-wire sensor (VTWS) is removed?

None

Tamper

Intruder

Equipment fault

45. Trend analysis is a program that ensures circuits meet management thresholds on what basis?

Daily

Weekly

Monthly

Annual

46. Which of the following will minimize EtherChannel configuration problems?

Disable all the interfaces after creating the EtherChannel

Configure all interfaces to operate at the same speed and duplex mode

Configure all interfaces for the same parameters as the last port configured

Assign all interfaces in the EtherChannel to a different Virtual LAN (VLAN)

47. In the Open System Interconnect (OSI) model, a layer will communicate with three other OSI layers. Which one is not one of those layers?

Layer above.

Layer below.

Lowest layer.

Peer layer.

48. What Digital Multiplex System (DMS)-100 system contains subsystems for test routing, fault detection, fault analysis, and error reporting?

Visual display unit

Digital trunk controller

Line concentrating modules

Maintenance and administration position

49. In Integrated Services Digital Network (ISDN), the "B" channel carries...

User traffic.

Call setup traffic.

Handshaking data.

Management data.

50. What provides enterprise wide visibility into telecom resource utilization, phone network usage, and incidents of toll fraud?

Public Switched Telephone Network

Enterprise Telephony Management System

Voice over Internet Protocol (VoIP) System

Time Division Multiplexing System

51. The basic configuration of the entry control facility includes a...

Gatehouse, personnel entry gate, inspection equipment, and vehicle entrapment area.

Security forces entry gate, inspection equipment, backup generator, and gatehouse.

Location for security personnel to perform shift change and receive their weapon.

Gatehouse, vehicle parking area, and personnel entry gate.

52. How many broadcast domains forms a Virtual LAN (VLAN)?

1

2

3

4

53. Which wireless design phase accounts for the amount of users on the network, the training required for the users and the security and integrity requirements of the network data?

Planning

Securing

Deployment

Management

54. Which is not a component of the Voice Protection System (VPS) architecture?

Server

Firewall

Software

Appliance

55. What is the process, or result of the process, of modifying (varying) one of more characteristics of a carrier signal in accordance with an instantaneous characteristic of an information signal?

Modulation

Multiplexing

Quantization

Synthesizing

56. Which communications control signal uses a two-frequency dialing combination?

Pulse

Tone

Digit

Address

57. Which stratum level is a Global Positioning System (GPS) timing source?

1

2

3

4

58. What names are given to the shifted R-Y and B-Y signals, respectively?

I (45° in-phase) and Q (90° in-phase)

I (90° in-phase) and Q (45° in-phase)

I (out-of-phase) and Q (quadrature)

I (in-phase) and Q (quadrature)

59. Which option is a characteristic of synchronous data operation?

Timing pulses are transmitted within the signal stream

Start and stop pulses control data transmission

System timing is not of critical importance

All data bits are the same length in time

60. When configuring a router, you control access to privileged EXEC mode by configuring which password?

Line console

Line vty

Enable

Secret

61. How many voltage levels does a binary signal have?

1

2

3

4

62. In general, you should deny direct dial-in access to a network device by disabling which port?

Console

Auxiliary

Interface

Virtual terminal

63. Which Institute of Electrical Electronics Engineers (IEEE) specification is least susceptible to interference caused by household appliances and medical devices?

802.11a

802.11b

802.11g

802.11r

64. When a telephone network is circuit switched, each call...

Is broadcast over multiple paths between switches.

Is packetized and transmitted in circuitous bursts.

Has a dedicated circuit created by the switch.

Has a dedicated trunk created by the switch.

65. What report must be sent if the circuit does not meet all required parameters and the Telecommunications Service Order (TSO) issuing authority advises that the circuit is accepted for service?

In-effect

Exception

Acceptance

Delayed service

66. The signal components that occur as bands above and below a carrier are called...

Sidebands.

Sine waves.

Frequency translators.

Modulating frequencies.

67. What do Global Positioning System (GPS) satellites use to provide very precise time to GPS receivers?

Crystal oscillator

Internal timing

Atomic clock

Station clock

68. At what Open System Interconnect (OSI) layer are virtual circuits established, maintained, and terminated?

Network

Physical

Data Link

Transport

69. A digital signal that contains synchronizing bits within the signal stream describes...

Synchronous operation.

Asynchronous operation.

Synchronous and/or isochronous operation

Asynchronous and/or synchronous operation

70. What are the two major types of frame structures?

Low speed and high speed

High speed and EBCDIC

CCITT and low speed

EBCDIC and CCITT

71. What is the maximum number of ports that a Meridian System Logic-100 (MSL-100) supports?

10,000

30,000

100,000

300,000

72. Which basic circuit in the video distribution amplifier consists of two transistors that form the upper leg of a totem pole circuit?

Equalizer and peaking amp

Fixed gain and level shift

Variable gain amp

Output driver

73. Combined distribution frames encompass the functions of a main distribution frame and...

An intermediate distribution frame.

A black distribution frame.

A red distribution frame.

A mid distribution frame.

74. Which DD Form is used a the primary source of information when preparing DOD Information Network (DODIN) status reports?

1441

1443

1445

1753

DD Form 1443, Outage and Restoration Record

Explanation

DD Form 1443, Outage and Restoration Record

75. The time it takes a switch to figure out where to forward a data unit is called its...

Lag.

Hop.

Latency.

Time zone.

76. Which is not a characteristic and capability of a voice protection system?

Securing communications

Enabling of real-time notifications

Centralizing yet distributing management

Detecting and blocking all inbound and outbound modem connections

77. The method of multiplexing the T1 multiplexer uses is...

Frequency division.

Binary division.

Pulse division.

Time division.

78. Which wave-division multiplexing technology uses uncooled lasers to reduce cost?

Wave-division multiplexing

Coarse wave division multiplexing

Dense wave division multiplexing

Long wave division multiplexing

79. The signaling equipment has three types of communications signals that function to...

Process witch addressing.

Control digit translations.

Control and process calls.

Provide a clear signal.

80. Within how many normal duty hours of completion action on the Telecommunications Service Order (TSO) must the circuit control office (CCO) submit an in-effect report?

72

48

24

12

81. Which interior intrusion detection system s designed to detect intruders attempting to enter a shelter, storage igloo, or building?

AN/GSS-42

AN/GSS-41

AN/GSS-29

AN/GSS-39

82. What link is used to connect the Digital Multiplex System (DMS)-core to the DMS-bus?

DS-1

DS-30

DS-30A

DS-512

83. Which digital Multiplex System (DMS)-100 database facility provides facilities for storing data modifications orders (DMO) and for retrieving them at a specific time for execution?

Journal file

Table control

Dump/restore

Pending order file

84. To prevent frequency modulation (FM) radio stations from interfering with each other, the Federal Communications Commission (FCC) has set limits that allow each station to cause its oscillator frequency to deviate no more than

20 kHz

50 kHz

75 kHz

88 kHz

85. What does the GVG-110 video switcher serial interface allow?

Remote microprocessor control

Remote control of switcher transitions

Serial interface programming with the switcher effects memory

Remote control of all switcher functions by a personal computer

86. Which form of modulation is insensitive to signal variations?

Delta modulation

Frequency shift keying

Binary-phase shift keying

Pulse-amplitude modulation

87. Which of the following is not a distinct layer of hierarchical network design?

Core

Access

Transport

Distribution

88. If a circuit fails its management threshold, what test might be performed?

Quality control

Operational acceptance

Test and acceptance

Operations and maintenance

89. What is the maximum detection distance in meters of an Infrared Pulsed Intrusion Detection System (IPIDS)?

60

80

100

150

90. To create a better timing environment in communications networks, external timing distribution occurs through...

Station clocks.

Internal timing.

Crystal oscillators.

Distribution frames.

91. On a router's serial interface connection, what provides the timing signal for the communication link?

Data communications equipment

Data terminal equipment

Internal oscillator

Atomic clock

92. When you must restore user service by rerouting, what is the second type of circuit you preempt?

Spare channels

Active on-call circuits

Nonactive on-call circuits

Circuits with 00 RP codes

93. The vulnerabilities of voice and data converged networks were highlighted in a report released by the...

President's National Security Telecommunications Advisory Committee.

Air Force Network Integration Center

Air Force Information Warfare Battle Lab

Cryptographic Systems Group

94. Which test results do you record on the reverse/back side of the DD Form 1697-Analog?

Idle channel noise and test tone levels

Terminal impedance and impulse noise

Frequency response and envelope delay

Net loss variation and single tone reference

95. How many framing bits are in the extended superframe format (ESF) framing sequence?

8

12

24

48

96. Which common channel signaling (CCS) mode does the transfer of messages relating to signaling between two points occur directly over links interconnecting the signaling points?

Associated

Nonassociated

Quasi-associated

Multi-associated

97. Which elements make up the control component of the SuperNode central control?

Computing mode (CM) and message switches (MS)

Computing mode (CM) and system load module (SLM)

Central processing unit (CPU) and control monitor unit (CMU)

Central processing unit (CPU), digital signal (DS), and peripheral module (PM)

98. What is the secondary mode of detection for the microwave fence sensor?

Beam break

Signal fade margin

Multipath reflection

Mutlipath amplification

99. During the initial research for voice system security, who recognized that the most common security threats could be addressed by voice protection system?

The President's National Security Telecommunications Advisory Committee

The Air Force Information Warfare Battle Lab

The Air Force Network Integration Center

The Cryptographic Systems Group

100. What does the AN/GSS-39(V) system use to monitor the integrity of all sensor wiring to the control panel?

Zone indicator plate

Video Display Unit

End-of-line module

Tamper interface module

101. Which Digital Multiplex System (DMS)-100 database facility provides facilities for preserving data modifications orders (DMO) on tape or disk so that data tables can be restored if the systems fail?

Journal file

Table control

Dump/restore

Pending order file

102. Who is responsible for all circuits within their facility up to the designated demarcation point and provides troubleshooting assistance at the direction of the Global NetOps Support Center (GNSC)?

Communications focal point

Network control center (NCC)

Node site coordinator (NSC)

Circuit actions officer

103. Which form of multiplexing is very susceptible to signal deterioration?

Frequency-division

Wave-division

Time-division

Phase-division

104. Where are voice protection system servers installed?

Local bases

MAJCOM headquarters

Air Force Network Operations Center

Integrated Network and Security Center

105. Which digital broadcast system was adopted by the United States as the standard?

Digital Video Broadcast-Terrestrial System

Advanced Television Systems Committee

Digital Video Broadcast-Satellite System

Digital Video Broadcast-Committee

106. Which publication lists the methods used to identify systems, links, trunks, and circuits?

Defense Information Systems Agency Circular (DISAC) 310-70-1

DISAC 310-65-1

DISAC 310-55-1

DISAC 300-175-9

107. Which agency has responsibility for a circuit end-to-end?

Defense Information Systems Agency (DISA)

Network Control Center (NCC)

Node Site Coordinator (NSC)

Circuit Control Office (CCO)

108. Which type of pulse modulation is least affected by noise?

Pulse-amplitude

Pulse-duration

Pulse-position

Pulse-code

109. What is the maximum length of the vertical taut-wire sensor (VTWS)?

150 feet

200 feet

328 feet

425 feet

110. How is supervisory signaling information transferred in common channel signaling (CCS)?

Bit robbing

Bit stuffing

Frame correction

Separate network channel

111. How many vertical taut-wire sensor (VTWS) sectors can be services per field distribution box (FDB)?

1

2

4

8

112. How many sensors does a taut-wire system in the Y taut-wire sensor (YTWS) configuration contain?

5

6

10

12

113. Where do incoming (unswitched) circuits transmitted to the ENET enter the NT9X35A cross-point card?

Vertical bus (V-bus)

Horizontal bus (H-bus)

Clock rate/messaging card

Enhanced network (ENET) processor

114. Which office or system confirms a restoration priority?

Circuit Control Office

Systems Control Facility

Defense Communications System (DCS)

National Communications System (NCS)

115. How many serial data interface ports does the Meridian Option 11C Small System Controller have?

32

12

3

1

116. Digital coding techniques such as binary with eight-zero substitution (B8ZS) are becoming more popular because they are designed to...

Provide error-free signaling.

Operate at higher data rates.

Eliminate bipolar violations.

Maintain ones density standards.

117. What data communication protocol uses characters or "handshaking" to control the link and represent information?

Asynchronous protocol.

Binary synchronous protocol.

Synchronous Data Link Control (SDLC)

High-Level Data Link Control (HDLC)

118. Which DD form do you use for an official narrative log that is used to brief unit commanders?

1441

1443

1698

1753

DD Form 1753, Master Station Log

Explanation

DD Form 1753, Master Station Log

119. Which data communication protocol is a transmission code that supports a variety of link types and topologies?

Asynchronous protocol

Binary synchronous protocol

Synchronous Data Link Control (SDLC)

High-Level Data Link Control (HDLC)

120. The form of pulse modulation in which a discrete pulse is varied within a range of positions is known as...

Pulse-amplitude.

Pulse-duration.

Pulse-position.

Pulse-code.

121. What is the maximum length of the Y taut-wire sensor (YTWS)?

150 feet

200 feet

328 feet

425 feet

122. The GVG-110 video switcher effects key fills with...

Linear signal and chroma signal from the effects keyer.

Key bus video or an internally-generated color matte signal.

Key bus keying signal or an internally-generated color matte signal.

Luminance signal and chroma key signal from the effects keyer

123. How many selectable frequencies are obtainable with an SD80DC microwave sensor?

5

8

10

12

124. The total number of effects storage registers in the GVG-110 video switcher is...

8.

10.

12.

16.

Z3d152 Volume 2

1. Which application layer protocol is used to synchronize the clocks of computers on a network?

2.

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

2. Which of the following is an example of a video compression standard?

3. Which topology defines the way in which devices communicate and data is transmitted throughout the network?

4. The three cornerstones of voice network system security are availability,

5. What should security policies encompass to help mitigate the threat of convergence?

6. Which topology has the stations connected in the form of a circle?

7. What are attempts to gain access to a switch system by posing as an authorized user?

8. What allows transportation of all active Virtual LANs (VLAN) between switches using a single physical link?

9. In binary synchronous protocol, which characters establish and maintain character synchronization prior to the message block and during transmission?

10. Which data communication protocol is based on bits and the position of the bits?

11. A Management Information Base (MIB) is a collection of information that is organized...

12. Simple Network Management Protocol (SNMP) is a tool used by network administrators to manage network performance, investigate and solve network problems and help plan for...

13. Internet Protocol version 6 (IPv6) addresses are represented by...

14. The primary reason you should measure the voltage across faulty terminal protectors before removing and replacing them is to...

15. Which routing protocol do internet backbones use?

16. In an Intrusion Detection System (IDS), what is the main purpose of a boundary fence?

17. Which agency is the perferred transport provider for Internet and commercial satellite connections used for voice, video and/or data services on DOD networks?

18. Which network Class has the most addresses for hosts?

19. What type of signal is sent to the fence protection system (FPS) signal processor when an alarm is detected?

20. Which statement best describes a binary with eight-zero substitution (B8ZS) signal?

21. What identifier differentiates one wireless local area network (WLAN) from another?

22. What is most commonly used in data systems to express signaling speed?

23. In common associated signaling (CAS), what is the seventh bit in frames 6 and 12 used for?

24. Which network layer protocol matches a known Internet Protocol (IP) address for a destination device to a Media Access Control (MAC) address?

25. Which device has multiport connectivity that directs data between nodes on a network?

26. Which interior intrusion detection system (IIDS) sensor uses heat radiation to detect intruders?

27. Which topology combines two or more different physical topologies in a single network?

28. Which device subdivides a network into smaller logical pieces, or segments?

29. In what type of digital signal does the signal level move to one of the discrete signal levels, but returns to the zero level after a predetermined time?

30. Individual pulses within a digital signal are...

31. Which transport layer protocol provides reliable data delivery services?

32. Virtual Private Networks (VPNs) allow the AF to extend network resources acrss a/an...

33. In an Intrusion Detection System (IDS), what must a line of detection detect?

34. Who determines if Preventative Maintenance Inspections (PMI) are accomplished when commercial manuals or publications are not available?

35. How many subnet bits are required to support 90 subnets on a Class B network?

36. Teredo has four tunneling components. Which one is not one of them?

37. Which router port is used for initial configuration?

38. If the circuit files are lost or destroyed, what document are Technical Control Facilities required to obtain?

39. Which physical security action can you take to ensure network equipment supports the widest range of security services?

40. Which network layer protocol provides messaging that can help with troubleshooting?

41. What web application is used to order telecommunications products and services from the Defense Information Systems Agency (DISA)?

42. What document is the authority for the operations and maintenance agencies to procure specific devices and ancillary equipment necessary for the installation or operation of the circuit?

43. Which Digital Multiplex System (DMS)-100 database facility is responsible for creating and maintaining tables of data in a controlled manner?

44. What type alarm a=occurs if the sensor post cover in vertical taut-wire sensor (VTWS) is removed?

45. Trend analysis is a program that ensures circuits meet management thresholds on what basis?

46. Which of the following will minimize EtherChannel configuration problems?

47. In the Open System Interconnect (OSI) model, a layer will communicate with three other OSI layers. Which one is not one of those layers?

48. What Digital Multiplex System (DMS)-100 system contains subsystems for test routing, fault detection, fault analysis, and error reporting?

49. In Integrated Services Digital Network (ISDN), the "B" channel carries...

50. What provides enterprise wide visibility into telecom resource utilization, phone network usage, and incidents of toll fraud?

51. The basic configuration of the entry control facility includes a...

52. How many broadcast domains forms a Virtual LAN (VLAN)?

53. Which wireless design phase accounts for the amount of users on the network, the training required for the users and the security and integrity requirements of the network data?

54. Which is not a component of the Voice Protection System (VPS) architecture?

55. What is the process, or result of the process, of modifying (varying) one of more characteristics of a carrier signal in accordance with an instantaneous characteristic of an information signal?

56. Which communications control signal uses a two-frequency dialing combination?

57. Which stratum level is a Global Positioning System (GPS) timing source?

58. What names are given to the shifted R-Y and B-Y signals, respectively?

59. Which option is a characteristic of synchronous data operation?

60. When configuring a router, you control access to privileged EXEC mode by configuring which password?

61. How many voltage levels does a binary signal have?

62. In general, you should deny direct dial-in access to a network device by disabling which port?

63. Which Institute of Electrical Electronics Engineers (IEEE) specification is least susceptible to interference caused by household appliances and medical devices?

64. When a telephone network is circuit switched, each call...

65. What report must be sent if the circuit does not meet all required parameters and the Telecommunications Service Order (TSO) issuing authority advises that the circuit is accepted for service?

66. The signal components that occur as bands above and below a carrier are called...

67. What do Global Positioning System (GPS) satellites use to provide very precise time to GPS receivers?

68. At what Open System Interconnect (OSI) layer are virtual circuits established, maintained, and terminated?

69. A digital signal that contains synchronizing bits within the signal stream describes...

70. What are the two major types of frame structures?

71. What is the maximum number of ports that a Meridian System Logic-100 (MSL-100) supports?

72. Which basic circuit in the video distribution amplifier consists of two transistors that form the upper leg of a totem pole circuit?

73. Combined distribution frames encompass the functions of a main distribution frame and...

74. Which DD Form is used a the primary source of information when preparing DOD Information Network (DODIN) status reports?

75. The time it takes a switch to figure out where to forward a data unit is called its...

76. Which is not a characteristic and capability of a voice protection system?

77. The method of multiplexing the T1 multiplexer uses is...