Communication Distribution Systems Flashcards Preview

5 Level CDC > Communication Distribution Systems > Flashcards

Flashcards in Communication Distribution Systems Deck (27):
1

What condition occurs when a signal is induced into one circuit from another?

Crosstalk.

2

What cabling is the most commonly used?

Unshielded twisted pair (UTP).

3

Which category (Cat) of cable can support data rates up to 100Mbps?

Cat 5.

4

Which principle is not addressed in the ANSI/TIA/EIA–568–B standard?

Recommended wireless topology and distances.

5

Which principle is not addressed in the ANSI/TIA/EIA–568–B standard?

Color of the cable.

6

Which TIA/EIA parameter test is a measure of the decrease of signal strength as it travels
down the media?

Insertion loss.

7

Which TIA/EIA parameter test is a measure of the unwanted signal coupling from a
transmitter at the near-end into a neighboring (non-energized) pair measured at the near-end?

Near-end crosstalk (NEXT).

8

Which TIA/EIA parameter test is a measure of the degree of impedance mismatch between
two impedances?

Return loss.

9

Which subsystem of the ANSI/TIA/EIA–568-B structured cabling system provides the point
at which outdoor cabling interfaces with the intrabuilding backbone cabling?

Entrance facility.

10

What cabling system subsystem provides any or all of the functions of a
telecommunications room?

Equipment room.

11

Which subsystem of the ANSI/TIA/EIA–568–B structured cabling can be used for
connections between floors?

Backbone cabling.

12

Which subsystem of the ANSI/TIA/EIA–568–B structured cabling can be used to
interconnect buildings?

Backbone cabling.

13

Which subsystem of the ANSI/TIA/EIA–568–B structured cabling extends from the
telecommunications room to the work area telecommunications information outlets?

Horizontal cabling.

14

Which subsystem of the ANSI/TIA/EIA–568–B structured cabling recognizes multimode
cable?

Horizontal cabling.

15

The work area of the ANSI/TIA/EIA–568–B structured cabling system consists of all except
which components?

Patch panels.

16

Which ANSI/TIA/EIA standard defines labeling cables and patch panels?

606–A.

17

What Air Force Systems Security Instruction (AFSSI) directs implementation of protected
distribution systems?

7703.

18

Which method is not a means for secure telecommunications?

Using Defense Courier Service.

19

In the RED/BLACK concept, what type of traffic do RED lines carry?

Unencrypted classified.

20

The RED/BLACK concept has which two parts?

Physical separation and electrical separation.

21

TEMPEST is

an unclassified term and a US Government code word that identifies a classified set of
standards.

22

What is the purpose of the TEMPEST program?

Reduce the chances of radiation of electrical impulses.

23

What is the TEMPEST program in the Air Force called?

Emission Security.

24

What area is described as the complete building or facility area under direct physical control
within which unauthorized persons are denied unrestricted access and are either escorted by
authorized persons or are under continuous physical or electronic surveillance?

Controlled Access Area (CAA).

25

Protected distribution systems (PDS) require which scheduled inspections?

Line route inspections.

26

Protected distribution systems (PDS) events such as alarms and inspections are recorded
where?

Protected distribution system (PDS) log.

27

A line route inspection of a protected distribution system (PDS) consists of a close visual
inspection that must include the

total surface.