Microsoft Networking Essentials Exam Microsoft Networking Essentials 3

Question 1

A user reports they can ping 127.0.0.1 but cannot ping their default gateway. What does this most likely indicate?

Accepted Answer

The network cable or physical layer connection has a problem

Answer

The TCP/IP stack is corrupt

Answer

DNS is not resolving names

Answer

The firewall is blocking ICMP entirely

Question 2

What is the valid host range for the subnet 10.0.4.0/22?

Accepted Answer

10.0.4.1 – 10.0.7.254

Answer

10.0.4.1 – 10.0.4.254

Answer

10.0.0.1 – 10.0.7.254

Answer

10.0.4.1 – 10.0.5.254

Question 3

Which IEEE standard defines the specifications for wireless LAN (Wi-Fi) networking?

Accepted Answer

IEEE 802.11

Answer

IEEE 802.3

Answer

IEEE 802.1Q

Answer

IEEE 802.5

Question 4

What Windows tool can be used to view and clear the ARP cache?

Accepted Answer

arp -a / arp -d

Answer

nslookup

Answer

netstat -r

Answer

tracert

Question 5

Which protocol is used to automatically assign IP addresses to clients on a network?

Accepted Answer

DHCP

Answer

DNS

Answer

WINS

Answer

NAT

Question 6

In a VLAN-tagged network, what does the 802.1Q tag inserted into an Ethernet frame contain?

Accepted Answer

The VLAN ID and priority bits

Answer

Source and destination MAC addresses

Answer

The IP checksum and TTL value

Answer

Encryption keys for the frame payload

Question 7

Which network device operates at Layer 3 and makes forwarding decisions based on IP addresses?

Accepted Answer

Router

Answer

Hub

Answer

Switch

Answer

Bridge