TMP Network Design & Optimization 4

Question 1

Which network capacity planning model uses historical traffic growth trends to forecast future bandwidth requirements?

Accepted Answer

Time-series trend analysis

Answer

Time-series trend analysis extrapolates historical utilization data to project when network links will require capacity upgrades.

Question 2

A TMP professional needs to design a network with 99.999% availability (five-nines). Which strategy MOST directly achieves this?

Accepted Answer

Eliminating all single points of failure through redundant paths and components

Answer

Five-nines availability requires eliminating single points of failure at every layer — hardware, links, power, and software — so any single failure does not cause an outage.

Question 3

In MPLS networks, what is the function of a Label Edge Router (LER)?

Accepted Answer

Imposes or removes MPLS labels at the edge of the MPLS domain

Answer

The LER (also called PE router) adds MPLS labels to incoming IP packets at the ingress edge and removes them at the egress edge.

Question 4

Which approach to network design allows traffic engineering by explicitly specifying the path packets take through the network?

Accepted Answer

Policy-based routing (PBR)

Answer

PBR allows administrators to override normal routing decisions and direct traffic along specific paths based on defined policies.

Question 5

During a network optimization project, a manager discovers that 60% of WAN traffic is Netflix video. Which solution BEST reduces WAN utilization?

Accepted Answer

Implement split tunneling or local internet breakout for non-business traffic

Answer

Local internet breakout (split tunneling) routes consumer internet traffic directly to the internet at the branch rather than backhauling it over the corporate WAN.

(TMP) Telecommunications Management Professional Practice Test

(TMP) Telecommunications Management Professional Practice Test

TMP Network Design & Optimization 4