Question 5
Given the address 192.168.10.19/28, which of the following are valid host addresses on this subnet? (Choose two)
A. 192.168.10.29
B. 192.168.10.16
C. 192.168.10.17
D. 192.168.10.31
E. 192.168.10.0
Answer: A C
Explanation
192.168.10.19/28 belongs to 192.168.10.16 network with mask of 255.255.255.240. This offers 14 usable ip address range from 192.168.10.17 – 30. Use the cram table above if you are confused.
Question 6
Which of the following IP addresses fall into the CIDR block of 115.64.4.0/22? (Choose three)
A. 115.64.8.32
B. 115.64.7.64
C. 115.64.6.255
D. 115.64.3.255
E. 115.64.5.128
F. 115.64.12.128
Answer: B C E
To really understand this question and the provided answers, read How to Subnet Class B tutorial.