TMP Technologies & Infrastructure 2

Question 1

Which multiplexing technique divides a fiber optic channel into multiple wavelengths to increase capacity?

Accepted Answer

Dense Wavelength Division Multiplexing (DWDM)

Answer

DWDM combines multiple optical carrier signals on a single fiber by using different wavelengths, dramatically increasing bandwidth capacity.

Question 2

In a Software-Defined Networking (SDN) architecture, which plane is centralized and manages routing decisions?

Accepted Answer

Control plane

Answer

In SDN, the control plane is decoupled from hardware and centralized in a controller, which makes all routing and forwarding decisions.

Question 3

What is the primary advantage of using a Metro Ethernet network for enterprise connectivity?

Accepted Answer

It extends familiar Ethernet protocols over a wide metro area at high bandwidth

Answer

Metro Ethernet allows enterprises to connect sites across a city using standard Ethernet interfaces, simplifying operations and offering scalable bandwidth.

Question 4

Which technology standard defines the air interface for 5G New Radio (NR)?

Accepted Answer

3GPP Release 15

Answer

3GPP Release 15 is the first formal 5G NR standard, defining the radio access network specifications for sub-6 GHz and mmWave bands.

Question 5

A telco plans to deploy Massive MIMO antennas. What is the primary benefit?

Accepted Answer

Increases spectral efficiency by serving multiple users simultaneously with beamforming

Answer

Massive MIMO uses large antenna arrays and beamforming to spatially multiplex many users on the same time-frequency resource, boosting spectral efficiency.

(TMP) Telecommunications Management Professional Practice Test

(TMP) Telecommunications Management Professional Practice Test

TMP Technologies & Infrastructure 2