3D152 Vol. 3
All the UREs from CDC 3D152
- 1.
One disadvantage of microwave wavelengths is that the frequencies are susceptible to
- A.
Line noise
- B.
Weather effects
- C.
Frequency distortion
- D.
Electromagnetic interference
Correct Answer
B. Weather effects -
- 2.
What is not a factor in determining the refractive index of air?
- A.
Atmoshperic pressure
- B.
Propogation medium
- C.
Temperature
- D.
Moisture
Correct Answer
B. Propogation medium -
- 3.
The determining factor in calculating the correct size of a waveguide is
- A.
Frequency
- B.
Power output
- C.
Bandwidth of the transmission medium
- D.
Distance between equipment and transmitter
Correct Answer
A. Frequency -
- 4.
How many miles above Earth are satellites placed into orbit?
- A.
2,230
- B.
2,320
- C.
22,300
- D.
23,200
Correct Answer
C. 22,300 -
- 5.
Which satellite communications system is used to transmit space operations?
- A.
Milstar Communication System
- B.
Defense Satellite Communications System (DSCS)
- C.
Air Force Satellite Communications (AFSATCOM)
- D.
Ground Mobile Forces Satellite Communications (GMFSC)
Correct Answer
B. Defense Satellite Communications System (DSCS) -
- 6.
To transmit an audio signal over radio frequency (RF), it first has to be
- A.
Phase shifted
- B.
Transmitted
- C.
Modulated
- D.
Encoded
Correct Answer
C. Modulated -
- 7.
Broadband refers to a technology that can transmit
- A.
A relatively wide range of frequencies
- B.
Only high frequency information
- C.
A relatively wide range of amplitudes
- D.
Only high amplitude information
Correct Answer
A. A relatively wide range of frequencies -
- 8.
Broadband technology uses all of these transmission mediums except?
- A.
Telephone lines
- B.
Television cable lines
- C.
Satellite systems
- D.
Laser light
Correct Answer
D. Laser light -
- 9.
Which is not a disadvantage of laser light transmission?
- A.
No need for careful alignment of transmitter and receiver
- B.
Cannot penetrate even very thin curtains of paper
- C.
Sensitive to atmospheric interference
- D.
Strictly line-of-sight (LOS) transmission
Correct Answer
A. No need for careful alignment of transmitter and receiver -
- 10.
How many B and D channels does the standard configuration in North American Integrated Services Digital Network (ISDN) primary rate interface (PRI) application use?
- A.
2, 1
- B.
30, 2
- C.
1, 24
- D.
23, 1
Correct Answer
D. 23, 1 -
- 11.
When a telephone network is circuit switched , each call
- A.
Is broadcast over multiple paths between switches
- B.
Is packetized and transmitted in circuitous
- C.
Has a dedeicated circuit created by the switch
- D.
Requires a dedicated switch to make the connection
Correct Answer
C. Has a dedeicated circuit created by the switch -
- 12.
What is the primary driving factor behind the invention of the telephone exchange?
- A.
Point-to-point telephone access caused cabling issues
- B.
The invention of the multi-line telephone
- C.
Military communication requirements
- D.
Radio communication requirements
Correct Answer
A. Point-to-point telephone access caused cabling issues -
- 13.
What is the most serious threat to voice network system integrity?
- A.
Subversion
- B.
Unauthorized monitoring
- C.
Inexperienced switch technicians
- D.
Inadequate maintenance practices
Correct Answer
A. Subversion -
- 14.
What is one path high frequency (HF) transmissions follow from the antenna to the distant end?
- A.
Lightwave
- B.
Microwave
- C.
Soundwave
- D.
Groundwave
Correct Answer
D. Groundwave -
- 15.
Which models of the digital multiplex system (DMS) family are commenly used at Air Force bases to provide base telephone services?
- A.
DMS-100 and Meridian System Logic (MSL)-100
- B.
DMS-100/200 and MSL-100
- C.
DMS-100/200 and DMS-200
- D.
DMS-200 and MSL-100
Correct Answer
A. DMS-100 and Meridian System Logic (MSL)-100 -
- 16.
How many serial data interface ports does ther Meridian Option 11C Small System Controller have?
- A.
32
- B.
12
- C.
3
- D.
1
Correct Answer
C. 3 -
- 17.
The Integrated Services Digital Network (ISDN) configuration normally used to connect switches together is the
- A.
Basic rate interface
- B.
Primary rate interface
- C.
Trunk rate interface
- D.
Switch rate interface
Correct Answer
B. Primary rate interface -
- 18.
The three cornerstones of voice network system security are availability,
- A.
Circumvention, and confidentiality
- B.
Circumvention, and disclosure
- C.
Confidentiality, and integrity
- D.
Disclosure, and integrity
Correct Answer
C. Confidentiality, and integrity -
- 19.
What role does the Private Branch Exchange (PBX) play in the telephony industry?
- A.
A medium scale switch that handles traffic for a small city
- B.
A very small scale switch that is also known as a key system
- C.
A large scale switch that handles the traffic for a metropolitan area
- D.
A small scale switch that handles internal calls for an organization
Correct Answer
D. A small scale switch that handles internal calls for an organization -
- 20.
Which elements make up the control component of the SuperNode central control?
- A.
Computing mode (CM) and message switches (MS)
- B.
CM and system load module (SLM)
- C.
Central processing unit (CPU) and control monitor unit (CMU)
- D.
CPU, digital signal (DS), and peripheral module (PM)
Correct Answer
B. CM and system load module (SLM) -
- 21.
What link is used to connect the digital multiplex system (DSM)-core to the DMS-bus?
- A.
DS-1
- B.
DS-30
- C.
DS-30A
- D.
DS-512
Correct Answer
D. DS-512 -
- 22.
Which major component of the NorTel digital switching system (DSS) interfaces line and trunk subscribers?
- A.
Central control
- B.
Input/output (I/O)
- C.
Peripheral module (PM)
- D.
Peripheral subsystem (PS)
Correct Answer
C. Peripheral module (PM) -
- 23.
Base cables normally enter the central office (CO) facility through a
- A.
Cable manhole
- B.
Telecommunications cable closet
- C.
Building cable raceway
- D.
Cable vault
Correct Answer
D. Cable vault -
- 24.
The primary reason you should measure the voltage across terminal or distribution frame protectors before removing and replacing them is to
- A.
Verify the circuit is not in use
- B.
Prevent interruptions to critical circuits
- C.
Ensure dangerous voltages are not present on the line
- D.
Avoid activating alarm circuits
Correct Answer
C. Ensure dangerous voltages are not present on the line -
- 25.
What components are directly connected to the input/output controller (IOC)?
- A.
Printers, visual display unit (VDU), and tape drives
- B.
A pair of SuperNode message controllers and the device controllers
- C.
A maintenance and administration postion (MAP)
- D.
The central processing unit (CPU) and keyboard
Correct Answer
B. A pair of SuperNode message controllers and the device controllers -
- 26.
Where do incoming unswitched circuits from a peripheral module (PM) enter the NT9X35A cross-point card matrix
- A.
Vertical bus
- B.
Horizontal bus
- C.
Clock/message card
- D.
Enhanced network (ENET) processor
Correct Answer
A. Vertical bus -
- 27.
Because the enhanced network (ENET) is a matrix, any input channel has access to any available
- A.
Computing mode channel
- B.
Peripheral channel
- C.
H-bus channel
- D.
Output channel
Correct Answer
D. Output channel -
- 28.
Which digital multiplex system (DMS)-100 database facility is responsible for creating and maintaing tables of data in a controlled manner?
- A.
Journal file
- B.
Table control
- C.
Dump/restore
- D.
Pending order file
Correct Answer
B. Table control -
- 29.
Which digital multiplex system (DMS)-100 database facility provides facilities for preserving data modifications orders (DMO) and for retrieving them at a specified time for execution?
- A.
Journal file
- B.
Table control
- C.
Dump/restore
- D.
Pending order file
Correct Answer
D. Pending order file -
- 30.
Which digital multiplex system (DMS)-100 database facility provides facilities for storing data modifications orders (DMO) and for retrieving them at a specified time for execution?
- A.
Journal file
- B.
Table control
- C.
Dump/restore
- D.
Pending order file
Correct Answer
D. Pending order file -
- 31.
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 system should fail?
- A.
Journal file
- B.
Table control
- C.
Dump/restore
- D.
Pending order file
Correct Answer
A. Journal file -
- 32.
What voice mail interface has the capability to support the temporary absence greeting (TAG) feature?
- A.
Administration and maintenance interface
- B.
Voice messaging user interface forum
- C.
Meridian mail user interface
- D.
Message service interface
Correct Answer
C. Meridian mail user interface -
- 33.
The red, green, and blue (RGB) outputs from the camera go to the
- A.
Encoder
- B.
Decoder
- C.
Multiplexer
- D.
Demultiplexer
Correct Answer
A. Encoder -
- 34.
What voice mail interface allows a user's mailbox to be partitioned into a main mailbox and up to eight submailboxes?
- A.
Administration and maintenance interface
- B.
Voice messaging user interface forum
- C.
Meridian mail user interface
- D.
Message service interface
Correct Answer
B. Voice messaging user interface forum -
- 35.
Why are the R-Y and the B-Y signals shifted 33 degress counterclockwise?
- A.
To align R-Y and B-Y with their respective primary colors
- B.
To align R-Y and B-Y with their respective complementary colors
- C.
R-Y was shifted to minimum and B-Y was shifted to maximum color acuity, respectively for human vision
- D.
R-Y was shifted to maximum and B-Y was shifted to minimum color acuity, respectively for human vision
Correct Answer
D. R-Y was shifted to maximum and B-Y was shifted to minimum color acuity, respectively for human vision -
- 36.
What modulation technique is used by the Advanced Television Systems Committee (ATSC) system?
- A.
4-quadraplex sideband (4-QSB)
- B.
8-vestigal sideband (8-VSB)
- C.
4-vestigal modulation (4-VM)
- D.
8-quadrature modulation (8-QM)
Correct Answer
B. 8-vestigal sideband (8-VSB) -
- 37.
How many lines of video are discarded in high-definition 1080 line video encoded with 1920x1088 pixel frames prior to display?
- A.
2
- B.
4
- C.
6
- D.
8
Correct Answer
D. 8 -
- 38.
How is information recorded or stored on videotape?
- A.
Series of magnetic patterns
- B.
Series of edited electrical patterns
- C.
Transferred current indents
- D.
Transferred voltage indents
Correct Answer
A. Series of magnetic patterns -
- 39.
What modulation technique is used for Digital Video Broadcasting- Cable transmission?
- A.
MPEG-1
- B.
MPEG-2
- C.
MPEG-3
- D.
MPEG-4
Correct Answer
B. MPEG-2 -
- 40.
You can compare a video taperecorder (VTR) head to a/an
- A.
Magnet
- B.
Conductor
- C.
Electromagnet
- D.
Charged capacitor
Correct Answer
C. Electromagnet -
- 41.
What function in a video tape recorder (VTR) is accomplished by transporting the videotape across the head gap at the same speed at which it was recorded?
- A.
Fast forward
- B.
Playback
- C.
Erasure
- D.
Rewind
Correct Answer
B. Playback -
- 42.
Which digital video tape format uses a 4:2:2 standard, with an 8 bit sampling rate, 19mm wide tape, and has a 94 minute recording recording time?
- A.
D1
- B.
D2
- C.
D3
- D.
D4
Correct Answer
A. D1 -
- 43.
What is a major advantage of digital recording over analog recording?
- A.
Material can be edited generation after generation without noticeable degradation in quality
- B.
Material can be regenerated when the signal is converted to a different digital domain
- C.
The material recorded can be cloned with noticeable loss of quality
- D.
The recorded material can be converted to a different digital domain
Correct Answer
A. Material can be edited generation after generation without noticeable degradation in quality -
- 44.
What important concept to understand is that digital video is merely an alternate means for
- A.
Minimizing video loss
- B.
Carrying a video waveform
- C.
Minimized signal dropout
- D.
Transmitting an analog waveform
Correct Answer
B. Carrying a video waveform -
- 45.
What is the means of measuring the amount of time that has been played or recorded on a video tape recorder (VTR)?
- A.
Tape meter
- B.
Tracker
- C.
Counter
- D.
Display clock
Correct Answer
C. Counter -
- 46.
What is the means of measuring the amount of time that has been played or recorded on a video tape recorder (VTR)?
- A.
Tape meter
- B.
Tracker
- C.
Counter
- D.
Display clock
Correct Answer
C. Counter -
- 47.
The GVG-110 video switcher effects key fills with
- A.
Linear signal and chroma signal from the effects keyer
- B.
Key bus video or an internally-generated color matte signal
- C.
Key bus keying signal or an internally-generated color matte signal
- D.
Luminance signal and chroma key signal from the effects keyer
Correct Answer
B. Key bus video or an internally-generated color matte signal -
- 48.
What are the frequencies at which two common node nulling adjustments are set in the video distribution amplifier?
- A.
60Hz and 15,750Hz
- B.
60Hz and 5.5MHz
- C.
15,750Hz and 4.5MHz
- D.
15,750Hz and 5.5MHz
Correct Answer
B. 60Hz and 5.5MHz -
- 49.
What part of the video switcher allows titles or other video scenes to be inserted into a full screen background?
- A.
Effects keyer
- B.
Effects preview multiplier
- C.
Effects program multiplier
- D.
Transition pattern generator
Correct Answer
A. Effects keyer -
- 50.
The GVG-110 video switcher serial interface allows
- A.
Remote control of switcher transitions
- B.
Remote programming of all switcher functions
- C.
Serial interface programming with the switcher effects memory
- D.
Remote control of the switcher by a personal computer or digital picture manipulator
Correct Answer
D. Remote control of the switcher by a personal computer or digital picture manipulator -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Nov 07, 2013Quiz Edited by
ProProfs Editorial Team -
Oct 17, 2013Quiz Created by
Kadavenport22
- 1W0510 Quizzes
- 2A251 Quizzes
- 2A552 Quizzes
- 2A652 Quizzes
- 2A654 Quizzes
- 2A656 Quizzes
- 2A671 Quizzes
- 2A672 Quizzes
- 2A6X1 Quizzes
- 2A753 Quizzes
- 2A852 Quizzes
- 2AX5X Quizzes
- 2AX7X Quizzes
- 2s071 Quizzes
- 2T251 Quizzes
- 3d052 Quizzes
- 3D151 Quizzes
- 3D153 Quizzes
- 3d1x3 Quizzes
- 3e451 Quizzes
- 3e6x1 Quizzes
- 3P071 Quizzes
- 4a051 Quizzes
- 5j0x1 Quizzes
- Z3D153 Quizzes
- Z3p051 Quizzes
Back to top