Question 1
Which of the following correctly pairs the dotted decimal subnet mask with the correct number of binary bits that represent the subnet mask? 
A. 255.255.255.192 and /25 
B. 255.255.255.248 and /28 
C. 255.255.255.224 and /26 
D. 255.255.255.248 and /27 
E. 255.255.255.240 and /28  => answer
F. 255.255.255.240 and /16 

Question 2
A network engineer needs to configure a branch office for 82 hosts. What is the most efficient use of a subnet mask? 
A. 255.255.255.128  => answer
B. 255.255.255.192 
C. 255.255.255.224 
D. 255.255.255.248 

Question 3
How many hosts are available for 192.168.1.1/28? 
A. 14  => answer
B. 15 
C. 16 
D. 17 
E. 18 

Question 4
You need to configure 52 hosts for a computer lab. Which subnet mask is appropriate? 
A. 255.255.255.224 
B. 255.255.255.248 
C. 255.255.254.240 
D. 255.255.255.192  => answer

Question 5
Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network address?
A. 172.16.16.0  => answer
B. 172.16.24.0
C. 172.16.0.0
D. 172.16.28.0

Question 6
You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the maximum number of subnets. Which network address and subnet mask meet this requirement?
A. 192.168.252.0 255.255.255.252 
B. 192.168.252.8 255.255.255.248  => answer
C. 192.168.252.8 255.255.255.252 
D. 192.168.252.16 255.255.255.240
E. 192.168.252.16 255.255.255.252

