Microsoft Networking Essentials Exam IP Addressing & Subnetting

Question 1

Which class of IPv4 address uses the range 192.168.0.0 to 192.168.255.255 as private address space?

Accepted Answer

Class C

Answer

Class C private addresses fall in the range 192.168.0.0–192.168.255.255, as defined by RFC 1918.

Question 2

What is the default subnet mask for a Class B IP address?

Accepted Answer

255.255.0.0

Answer

Class B addresses use a default subnet mask of 255.255.0.0, providing 65,534 usable host addresses per network.

Question 3

How many usable host addresses are available in a /28 subnet?

Accepted Answer

14

Answer

A /28 subnet has 2^4 = 16 addresses, minus 2 (network and broadcast) = 14 usable hosts.

Question 4

Which notation is equivalent to the subnet mask 255.255.255.192?

Accepted Answer

/26

Answer

255.255.255.192 in binary is 11111111.11111111.11111111.11000000, which has 26 ones, equaling /26.

Question 5

What type of IPv4 address is 127.0.0.1?

Accepted Answer

Loopback

Answer

The address 127.0.0.1 is the loopback address, used to test the TCP/IP stack on the local machine.

Microsoft Networking Essentials Exam Practice Test