TMP Network Design & Optimization 3

Question 1

A telecom engineer observes high packet loss on a fiber link after a storm. Which diagnostic step should be performed FIRST?

Accepted Answer

Run an OTDR test to locate the fault

Answer

An Optical Time Domain Reflectometer (OTDR) test pinpoints the exact location and nature of a fiber fault without requiring physical cable access.

Question 2

Which network design principle minimizes the blast radius of a failure by dividing large Layer 2 domains?

Accepted Answer

VLAN segmentation

Answer

VLANs create separate broadcast domains, so a broadcast storm or failure in one VLAN does not propagate to others.

Question 3

A company's WAN link is at 95% utilization. Before purchasing more bandwidth, which optimization should be evaluated first?

Accepted Answer

Implement WAN optimization with data deduplication and compression

Answer

WAN optimization technologies like deduplication and compression can reduce effective traffic volume by 50–80%, often deferring costly bandwidth upgrades.

Question 4

In BGP, what is the effect of prepending your own AS number multiple times to an advertised prefix?

Accepted Answer

Makes the path appear longer to external peers, discouraging inbound traffic via that path

Answer

AS path prepending artificially lengthens the AS path, causing external BGP peers to prefer shorter paths via other providers.

Question 5

Which technology is used to aggregate multiple physical links into a single logical high-bandwidth connection between switches?

Accepted Answer

Link Aggregation Control Protocol (LACP)

Answer

LACP (IEEE 802.3ad) dynamically negotiates and maintains link aggregation groups, combining bandwidth and providing redundancy.

(TMP) Telecommunications Management Professional Practice Test

(TMP) Telecommunications Management Professional Practice Test

TMP Network Design & Optimization 3