structured cabling chapters 10 & 12

Which media option(s) are available for 10-Gigabit Ethernet deployment? A. 10GBase-LR or ER over OS2 B.10GBase-SR over OM3 or OM4 C.10GBase-T over Cat 6 (limited) or 6A

10GBase-LR or ER over OS2, 10GBase-SR over OM3 or OM4, 10GBase-T over Cat 6 (limited) or 6A

What is the minimum distance from the floor to the lowest 110-block during initial layout?

24 inches

The wall field in a TR will utilize 300-pair 110 blocks, and the installation has 225 horizontal cable drops located on the floor. How many 300-pair 110 blocks will be needed to properly terminate 225 four-pair horizontal cables?

4

At frequencies above ? , alien crosstalk starts to become a factor in overall cabling performance.

400 MHz

For a new cable installation project, each work area will receive two CAT 6 plenum-rated cables. How many steps are there to determine how much cable is needed?

5

All test parameters for 10GBASE-T must be tested in the field to ? .

500 MHz

What is the maximum elevation for the termination wall field in a TR?

73 1/2 inches

How many 300-pair 110-type terminal blocks are required to terminate 4-pair cables from 530 TOs?

8

A certification tool can test for which parameters? I. Attenuation to crosstalk ratio (ACR) II. Insertion loss (Attenuation) III. Length IV. Pair-to-pair near-end crosstalk (NEXT loss) V. Power-sum attenuation to crosstalk far-end (PSACRF) VI. Power-sum NEXT (PSNEXT) VII. Wire map

ACR, insertion loss (attenuation), length, NEXT loss, PSACRF, PSNEXT, and wire map

? 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.

FEXT

A(n) ? configuration is a cabling topology where the far-end connector is a field-installed plug (male) instead of a typical modular jack.

MPTL

? is an unwanted signal coupling from one balanced twisted-pair component, channel, or permanent link to another.

alien cross talk AXT

? field testing assures that the cabling link meets the transmission performance requirements as defined by industry standards.

certification

Which test configuration is to be used by system designers and users of data communications systems to verify the performance of the overall channel?

channel test

A ? occurs when the two conductors in a cable pair are connected to the position for a different pair at the remote connection.

crossed pair

? is the difference between the amount of delay for the fastest (shortest twist lengths) and the slowest (longest twist lengths) pairs within a cable.

delay skew

Four-pair unshielded twisted pair (UTP) cable is normally purchased in 5,000-foot lengths in boxes or on reels. T or F?

false

The only acceptable way to run backbone cabling to termination hardware on a given floor is to implement a point-to-point termination. T or F?

false

? is a measure of signal loss in the permanent link or channel.

insertion loss

Which measurement requires that the nominal velocity of propagation (NVP) be calibrated?

length

The pass or fail criteria is based on the maximum length allowed for the link plus the NVP uncertainty of ? test.

less than or equal to 10%

? (is/are) used when the cabling is plugged directly into fixed equipment such as wireless access points, CCTV cameras, access control devices, or other devices where installing a typical outlet is not practical.

modular plug terminated link

Which test configuration is used to verify the performance of permanently installed cabling?

permanent link

? field testing assures that the installed cabling link will successfully transmit data using a specific network technology.

qualification

? 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.

return loss

Which primary field test parameter will likely be adversely affected by exceeding the bend radius or excessive kinking and mishandling of a cable while it is being installed?

return loss

A ? occurs when the polarity of one pair is reversed at one end of the link.

reversed pair

A ? occurs when pin-to-pin continuity is maintained, but physical pairs are separated.

split pair

Which of the following measurements cannot be made using various verification tools?

transmission quality and bandwidth

Certification of cable performance requires that the test be documented and reported for future evaluation and/or inspection. T or F?

true

Cross-connects may be made between any of the fields present in the telecommunications room (TR). T or F?

true

Six 4-pair cables representing six telecommunications outlets (TOs) can be terminated on one row of a 110-type block. T or F?

true

The ANSI/TIA-568 Standards require all four pairs of a horizontal cable be terminated on only one outlet. T or F?

true

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 area. T or F?

true

When configuring a rack in a TR, in general, it is advisable to lay out racks so that patch panels and switches are alternated with a wire manager between them. T or F?

true

? field testing assures that the installed cabling link will successfully transmit data using a specific network technology.

verificstion

The ? test verifies the pin-to-pin terminations at each end and checks for error

wire map