Microsoft Networking Essentials Exam Microsoft Networking Essentials 5

Question 1

Which port number is used by the Remote Desktop Protocol (RDP) by default?

Accepted Answer

3389

Answer

22

Answer

23

Answer

5900

Question 2

What is the difference between a half-duplex and a full-duplex network connection?

Accepted Answer

Half-duplex can only send or receive at one time; full-duplex can do both simultaneously

Answer

Half-duplex uses wireless; full-duplex uses wired connections

Answer

Half-duplex operates at 100 Mbps; full-duplex operates at 1 Gbps

Answer

Half-duplex uses TCP; full-duplex uses UDP

Question 3

A company wants to ensure that only authorized computers can connect to their wired network switches. Which technology should they implement?

Accepted Answer

802.1X port-based Network Access Control

Answer

MAC address filtering on the router

Answer

VLAN tagging on all ports

Answer

DHCP reservation for all clients

Question 4

Which DNS record type is used to define the mail server responsible for accepting email for a domain?

Accepted Answer

MX record

Answer

A record

Answer

CNAME record

Answer

NS record

Question 5

What does the netstat -an command display in Windows?

Accepted Answer

All active TCP and UDP connections with addresses and port numbers in numeric format

Answer

The ARP cache with IP-to-MAC mappings

Answer

The routing table with all known network paths

Answer

All available network adapters and their status

Question 6

Which wireless security protocol is currently considered the most secure for protecting Wi-Fi networks?

Accepted Answer

WPA3 (Wi-Fi Protected Access 3)

Answer

WEP (Wired Equivalent Privacy)

Answer

WPA (Wi-Fi Protected Access)

Answer

WPA2-Personal (AES)

Question 7

In the context of TCP/IP, what is the purpose of the TTL (Time to Live) field in an IP packet header?

Accepted Answer

It limits the number of router hops a packet can traverse before being discarded

Answer

It specifies how long a DNS record remains cached

Answer

It defines the maximum time a TCP session can remain idle

Answer

It sets the expiration time for a DHCP lease