CDCP Structured Cabling and Standards 4

Question 1

What is the maximum pulling tension allowed for a 4-pair UTP cable during installation?

Accepted Answer

25 lbf (110 N)

Answer

ANSI/TIA-568 specifies a maximum pulling tension of 25 lbf (110 N) for 4-pair UTP horizontal cable to prevent stretching the conductors or damaging the twist geometry.

Question 2

In a data centre, what does the term 'alien crosstalk' (AXT) refer to?

Accepted Answer

Signal interference between adjacent cables in a bundle

Answer

Alien crosstalk (AXT) is electromagnetic interference between signal pairs in adjacent but separate cables, which becomes a significant concern in high-density data centre cabling.

Question 3

Which ANSI/TIA standard specifically addresses data centre telecommunications infrastructure?

Accepted Answer

ANSI/TIA-942

Answer

ANSI/TIA-942 'Telecommunications Infrastructure Standard for Data Centers' defines requirements for data centre cabling topology, pathways, and spaces.

Question 4

What minimum bend radius must be maintained for a Category 6A UTP cable during installation?

Accepted Answer

8 times the cable diameter

Answer

ANSI/TIA-568 requires a minimum bend radius of 8 times the cable outer diameter for Cat 6A UTP during installation to preserve signal integrity.

Question 5

What is the purpose of the Equipment Distribution Area (EDA) in TIA-942 data centre cabling architecture?

Accepted Answer

Houses end-user equipment such as servers and storage devices

Answer

The Equipment Distribution Area (EDA) is the zone where end-user equipment such as servers, storage, and network devices are located and connected.

CDCP - Certified Data Centre Professional Practice Test

CDCP - Certified Data Centre Professional Practice Test

CDCP Structured Cabling and Standards 4