RCDD (RCDD): Mastering Telecommunications Standards 4

Question 1

In the ANSI/TIA-568 star topology model, all horizontal cables must terminate at a central point called the:

Accepted Answer

Telecommunications Room (TR)

Answer

In the TIA-568 star topology, all horizontal cables from work area outlets terminate at the Telecommunications Room (TR).

Question 2

Which ANSI/TIA standard addresses outside plant telecommunications cabling infrastructure?

Accepted Answer

ANSI/TIA-758

Answer

ANSI/TIA-758 covers customer-owned outside plant telecommunications infrastructure, including buried, aerial, and underground cabling.

Question 3

What is the maximum recommended fill ratio for a conduit carrying communications cables per ANSI/TIA-569?

Accepted Answer

60%

Answer

ANSI/TIA-569 recommends a maximum fill ratio of 60% for conduit used in telecommunications pathways to allow for future cable additions.

Question 4

According to TIA-568, what is the maximum channel length for OM3 multimode fiber supporting 10GBASE-SR (10 Gigabit Ethernet)?

Accepted Answer

300 meters

Answer

OM3 50/125 µm multimode fiber supports 10GBASE-SR up to 300 meters per IEEE 802.3ae and TIA-568 channel specifications.

Question 5

In a TIA-568 compliant installation, what is the maximum length of a cross-connect jumper or patch cord in the telecommunications room?

Accepted Answer

7 meters

Answer

TIA-568 limits cross-connect jumpers or patch cords within the telecommunications room to a maximum of 7 meters.

RCDD - Registered Communications Distribution Designer Practice Test