Microsoft Networking Essentials Exam Network Hardware & Infrastructure 3

Question 1

What is the purpose of PoE (Power over Ethernet)?

Accepted Answer

Deliver electrical power through Ethernet cables to devices

Answer

PoE (Power over Ethernet) delivers electrical power along with data through standard Ethernet cabling, eliminating the need for separate power supplies for devices like IP phones and wireless access points.

Question 2

In a star topology, if the central connecting device fails, what happens?

Accepted Answer

The entire network goes down

Answer

In a star topology, all devices connect to a central hub or switch, so if that central device fails, all connected devices lose network connectivity.

Question 3

Which category of UTP cable supports Gigabit Ethernet (1000BASE-T)?

Accepted Answer

Cat 5e

Answer

Cat 5e (Category 5 enhanced) cable supports Gigabit Ethernet (1000BASE-T) at distances up to 100 meters, with improved specifications over standard Cat 5.

Question 4

What does a DMZ (Demilitarized Zone) represent in network architecture?

Accepted Answer

A network segment between the internet and internal network for hosting public-facing services

Answer

A DMZ is a network segment that sits between the internet and the internal corporate network, used to host public-facing servers like web and email servers while protecting internal resources.

Question 5

What is the maximum data rate of Fast Ethernet (100BASE-TX)?

Accepted Answer

100 Mbps

Answer

Fast Ethernet (100BASE-TX) operates at 100 Megabits per second (Mbps) over Cat 5 or better twisted-pair cabling.

Microsoft Networking Essentials Exam Practice Test

Microsoft Networking Essentials Exam Practice Test

Microsoft Networking Essentials Exam Network Hardware & Infrastructure 3