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

Increase Ethernet cable speed

Answer

Encrypt data over Ethernet

Answer

Connect devices across different network segments

Question 2

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

Accepted Answer

The entire network goes down

Answer

Only the directly connected device loses connectivity

Answer

Half the network is affected

Answer

Traffic automatically reroutes

Question 3

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

Accepted Answer

Cat 5e

Answer

Cat 3

Answer

Cat 4

Answer

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 completely isolated internal network segment

Answer

A wireless-only network zone

Answer

A backup network for disaster recovery

Question 5

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

Accepted Answer

100 Mbps

Answer

10 Mbps

Answer

1000 Mbps

Answer

10 Gbps

Question 6

Which device is used to connect a LAN to a WAN and typically provided by an ISP?

Accepted Answer

Modem

Answer

Switch

Answer

Access point

Answer

Bridge