Structured Cabling Flashcards
1
Q
What type of coaxial fitting is commonly used for cable TV? A)BNC B)F C)N D)T
A
B
2
Q
What is the intention of the National Electrical Code (NEC)?
A)To improve the quality of all electrical installations
B)to promote uniform electrical installing standards
C)To protect people and property from electrical hazards
D)All the above
A
C
3
Q
If a question arises about grounding, what article in the NEC would be referenced? A)100 B)110 C)250 D)300
A
C
4
Q
Which standard is the “Administration Standard for Commercial Telecommunications Infrastructure”? A)TIA 568 B)TIA 570 C)TIA 606 D)TIA 607
A
C
5
Q
Which standard is “Telecommunications Pathways and Spaces”? A)TIA 568 B)TIA 569 C)TIA 570 D)TIA 607
A
B
6
Q
In the standards, mandatory requirements are designated by the word ? . A)Desirable B)May C)Shall D)Should
A
`C
7
Q
The maximum allowable length for a horizontal cable, regardless of media type, is ? or ? . A)5m/16' B)15m/49' C)90m/295' D)300m/984'
A
C
8
Q
In the standards, advisory statements are designated by the word ? . A)Desirable B)May C)Should D)All of the above
A
D
9
Q
What is the maximum backbone distance for a UTP data circuit from the MC to HC? A)5m/16' B)15m/49' C)90m/295' D)300m/984'
A
C
10
Q
The TIA ? Standard defines the requirements for an administration system. A)568 B)569 C)570 D)606
A
D
11
Q
The ? termination method used in the past for low speed data and voice terminations is no longer accepted by the standards because of excessive cross-talk caused by the nesting of the pairs. A)BOGBS B)T-568A C)T-568B D)USOC
A
D
12
Q
There are ? pairs in each binder group of a multi-pair UTP backbone cable. A)4 B)15 C)20 D)25
A
D
13
Q
Within a 300 pair UTP backbone cable, there are ? binder groups. A)6 B)12 C)20 D)25
A
B
14
Q
The minimum bend radius for multi-pair cable shall be ? times the cable diameter. A)4 B)6 C)8 D)10
A
D
15
Q
Which of the following are considerations that affect data transmission over fiber optic cabling?
I. Absorption II. Attenuation III. Bandwidth IV. Scattering A)1 B)1 & 2 C)1,2, & 3 D)2 & 3
A
D
16
Q
By allowing each of the pairs in a twisted pair cable to have a different twist length, the degree of ? is reduced. A)pair-to-pair capacitive coupling B)magnetic coupling C)induced noise voltage D)return loss
A
A
17
Q
For a given twisted pair cable, as frequency increases, attenuation decreases. A)True B)False C) D)
A
FAlse
18
Q
? is a measurement of the amount of signal energy that is reflected back to a transmitter as it travels down a twisted pair, encountering impedance discontinuities. A)Characteristic impedence B)Insertion Loss C)PSNEXT D)Return Loss
A
D
19
Q
A ? consists of up to 90 meters of horizontal cabling, a connection at each end, up to two meters of test equipment cord from the main unit of the field tester to the local connection, and up to two meters of test equipment cord from the remote connection to the remote unit of the field tester A)Bacjbone Pathway B)Channel Test C)Permanent Link D)Horizontal Pathway
A
C
20
Q
A ? consists of up to 90 meters of horizontal cable, a work area equipment cord, a telecommunications outlet, an optional consolidation connection close to the work area, and two cross-connect connections in the telecommunications room. A)Backbone Pathway B)Channel Test C)Horizontal Pathway D)Permanent Link
A
B
21
Q
The performance requirements for Category 5e cables, connectors, basic links, and channels are specified at frequencies up to ? . A)16 B)100 C)250 D)500
A
100 MHZ(B)
22
Q
A problem with traditional carbon block protectors is that a build-up of carbon dust can cause a path to ground for the conductor it is supposed to protect. A)True B)FAlse C) D)
A
True
23
Q
Which guidelines should be followed in general, but especially for Category 5e installations?
I. Do not twist, kink, or flatten the cable.
II. Do not untwist pairs unless necessary.
III. Never untwist a pair more than 1/2-inch.
IV. Remove as little of the cable jacket as necessary at termination points.
A)1 2
B)1 3
C)1 3 4
D) 1 2 3 4
A
D
24
Q
A typical 100-pair 110-type terminal block can accommodate the termination of a maximum of ? 4-pair cables. A)24 B)25 C)28 D)50
A
A
25
Q
No section of conduit shall be longer than ? or contain more than two 90° bends between pull points or boxes. A)50' B)100' C)150' D)200'
A
B
26
Q
The ANSI/TIA/EIA- ? Standard specifies the administrative requirements of telecommunications infrastructure. A)569-D B)570-C C)606-C D)607-D
A
C
27
Q
The administrative label color for horizontal cables – Cabling Subsystem 1 is ? . A)Blue B)Gray C)Purple D)White
A
A
28
Q
Which component is not associated with the telecommunications grounding and bonding infrastructure? A)BBC B)Ground Ring Electrode C)TBB D)Telecommunications Bonding Conductor
A
B
29
Q
The ? shall bond the PBB to the service equipment (power) ground. A)BBC B)Grounding COnductor C)TBB D)TBC
A
D
30
Q
To be compliant with the ANSI/TIA standards, application-specific components and cabling adapters shall be placed external to the telecommunications outlet in the work A)True B)False C) D)
A
True
31
Q
The ANSI/TIA-568 Standards require all four pairs of a horizontal cable be terminated on only one outlet. A)True B)False C) D)
A
True
32
Q
? field testing assures that the cabling link meets the transmission performance requirements as defined by industry standards. A)Authorization B)Certification C)Qualifications D)Verifications
A
B
33
Q
? is a measure of the unwanted signal coupling from a transmitter at the near-end into another pair measured at the far-end. This measurement is not displayed on the tester but is used to calculate other measurements. A)ACRF B)Delay Skew C)FEXT D)PSNEXT
A
C
34
Q
? is a measurement of the amount of signal energy that is reflected back to a transmitter as it travels down a twisted pair while encountering impedance discontinuities. A)Delay Skew B)Insertion Loss C)Propagation Delay D)Return Loss
A
D
