Microsoft Networking Essentials Exam Microsoft Networking Essentials: Final Course 5

Question 1

Which type of server stores usernames, passwords, and group memberships in a centralized directory for network authentication?

Accepted Answer

Active Directory Domain Controller

Answer

An Active Directory Domain Controller stores and manages user accounts, credentials, and group policies for centralized authentication.

Question 2

A UTP cable wired according to T568A on one end and T568B on the other end is called a:

Accepted Answer

Crossover cable

Answer

A crossover cable uses T568A on one end and T568B on the other, used to connect like devices (switch-to-switch, PC-to-PC) without a hub.

Question 3

Which QoS mechanism marks packets with a priority value in the IP header's DSCP field to influence forwarding decisions?

Accepted Answer

Differentiated Services (DiffServ)

Answer

DiffServ uses the DSCP field in the IP header to classify and mark traffic, allowing routers to apply different forwarding behaviors per class.

Question 4

Which wireless frequency band typically provides longer range but lower maximum throughput in Wi-Fi networks?

Accepted Answer

2.4 GHz

Answer

The 2.4 GHz band penetrates walls better and provides longer range, but has fewer non-overlapping channels and lower maximum speeds than 5 GHz.

Question 5

What is the purpose of the Gratuitous ARP (GARP) message?

Accepted Answer

Announce a device's IP-to-MAC binding to update neighbor caches

Answer

A Gratuitous ARP is an unsolicited ARP reply a device sends to update ARP caches on other hosts, commonly used after IP address changes or failover.

Microsoft Networking Essentials Exam Practice Test