CCNA is enormous. Even if you have a few certificates under your belt, it can still be difficult to figure out where to begin and what steps to do next. CCNA Learning Paths are a collection of videos, courses, labs, and other materials that have been carefully created by cloud professionals to help you plan your road to success in the cloud. CCNA Learning Paths may be found on the CCNA website. Follow the yellow brick road to your CCNA certification to become an expert in the cloud specialization of your choice, such as data, security, architecture, DevOps, or machine learning.
Question 1
You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?
A. 255.255.255.192
B. 255.255.255.224
C. 255.255.255.240
D. 255.255.255.248
Correct answer: B
Question 2
You configure a router interface with the IP address 192.168.10.62 255.255.255.192 and receive the following error: Bad mask /26 for address 192.168.10.62. Why did you receive this error?
A. You typed this mask on a WAN link and that is not allowed.
B. This is not a valid host and subnet mask combination.
C. ip subnet-zero is not enabled on the router.
D. The router does not support IP.
Correct answer: C
Question 3
If an Ethernet port on a router were assigned an IP address of 172.16.112.1/25, what would be the valid subnet address of this interface?
A. 172.16.112.0
B. 172.16.0.0
C. 172.16.96.0
D. 172.16.255.0
E. 172.16.128.0
Correct answer: A
Question 4
Using the illustration from the previous question, what would be the IP address of S0 if you were using the first subnet? The network ID is192.168.10.0/28 and you need to use the last available IP address in the range. Again, the zero subnet should not be considered valid for this
question.
A. 192.168.10.24
B. 192.168.10.62
C. 192.168.10.30
D. 192.168.10.127
Correct answer: C
Question 5
Which configuration command must be in effect to allow the use of 8 subnets if the Class C subnet mask is 255.255.255.224?
A. Router(config)#ip classless
B. Router(config)#ip version 6
C. Router(config)#no ip classful
D. Router(config)#ip unnumbered
E. Router(config)#ip subnet-zero
F. Router(config)#ip all-nets
Correct answer: E
Question 6
You have a network with a subnet of 172.16.17.0/22. Which is the valid host address?
A. 172.16.17.1 255.255.255.252
B. 172.16.0.1 255.255.240.0
C. 172.16.20.1 255.255.254.0
D. 172.16.16.1 255.255.255.240
E. 172.16.18.255 255.255.252.0
F. 172.16.0.1 255.255.255.0
Correct answer: E
Question 7
Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attachedto the router? (Choose two.)
A. 172.16.0.5
B. 172.16.1.100
C. 172.16.1.198
D. 172.16.2.255
E. 172.16.3.0
F. 172.16.3.255
Correct answer: DE
Question 8
To test the IP stack on your local host, which IP address would you ping?
A. 127.0.0.0
B. 1.0.0.127
C. 127.0.0.1
D. 127.0.0.255
E. 255.255.255.255
Correct answer: C
Question 9
On a VLSM network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?
A. /27
B. /28
C. /29
D. /30
E. /31
Correct answer: D
Question 10
To test the IP stack on your local host, which IP address would you ping?
A. 127.0.0.0
B. 1.0.0.127
C. 127.0.0.1
D. 127.0.0.255
E. 255.255.255.255
Correct answer: C
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