A. line noise.
B. weather effects.
C. frequency distortion.
D. electromagnetic interference.
A. Atmospheric pressure.
B. Propagation medium.
B. power output.
C. bandwidth of the transmission medium.
D. distance between equipment and transmitter.
A. Milstar Communication System.
B. Defense Satellite Communications System (DSCS).
C. Air Force Satellite Communications (AFSATCOM).
D. Ground Mobile Forces Satellite Communications (GMFSC).
A. phase shifted.
A. No need for careful alignment of transmitter and receiver.
B. Cannot penetrate even very thin curtains or paper.
C. Sensitive to atmospheric interference.
D. Strictly line-of-sight (LOS) transmission.
A. a relatively wide range of frequencies.
B. only high frequency information.
C. a relatively wide range of amplitudes.
D. only high amplitude information.
A. Telephone lines.
B. Television cable lines.
C. Satellite systems.
D. laser light.
A. basic rate interface (BRI).
B. primary rate interface (PRI).
C. trunk rate interface (TRI).
D. switch rate interface (SRI).
A. 2, 1.
B. 30, 2.
C. 1, 24.
D. 23, 1.
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.
A. is broadcast over multiple paths between switches.
B. is packetized and transmitted in circuitous bursts.
C. has a dedicated circuit created by the switch.
D. requires a dedicated switch to make the connection.
A. circumvention, and confidentiality.
B. circumvention, and disclosure.
C. confidentiality, and integrity.
D. disclosure, and integrity.
B. Unauthorized monitoring.
C. Inexperienced switch technicians.
D. Inadequate maintenance practices.
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.
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.
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).
A. Central control.
B. input/output (I/O).
C. peripheral module (PM).
D. peripheral subsystem (PS).
A. Printer, visual display unit (VDU), and tape drives.
B. A pair of SuperNode message controllers and the device controllers.
C. A maintenance and administration position (MAP).
D. The central processing unit (CPU) and keyboard.
A. cable manhole.
B. telecommunications cable closet.
C. building cable raceway.
D. cable vault.