Exam XK0-005 topic 1 question 128 discussion

Actual exam question from CompTIA's XK0-005

Question #: 128
Topic #: 1

A systems administrator was tasked with assigning the temporary IP address/netmask 192.168.168.1/255.255.255.255 to the interface eth0 of a Linux server.
When adding the address, the following error appears:
# ip address add 192.168.168.1/33 dev eth0
Error: any valid prefix is expected rather than "192.168.168.1/33".
Based on the command and its output above, which of the following is the cause of the issue?

A. The CIDR value /33 should be /32 instead.
B. There is no route to 192.168.168.1/33.
C. The interface eth0 does not exist.
D. The IP address 192.168.168.1 is already in use.

Show Suggested Answer

Suggested Answer: A 🗳️

by ryanzou at Nov. 2, 2022, 2:03 a.m.

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ryanzou

Highly Voted 2 years, 2 months ago

Selected Answer: A

Never see there is a subnet mask of /33

upvoted 7 times

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Nvoid

Highly Voted 2 years, 1 month ago

Selected Answer: A

Mod Fix. Thx!!!

upvoted 5 times

Nvoid

2 years, 1 month ago

Mod Fix. it should be A.

upvoted 1 times

Nvoid

2 years, 1 month ago

Mod still needs to fix.

upvoted 1 times

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tegami

Most Recent 11 months, 2 weeks ago

Selected Answer: A

Oh common guys it's A

upvoted 1 times

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Alizadeh

1 year, 4 months ago

Selected Answer: A

The correct answer is A. The CIDR value /33 should be /32 instead.

upvoted 1 times

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linux_admin

1 year, 10 months ago

Selected Answer: A

The cause of the issue is that the prefix length specified in the IP address/netmask is invalid. In the command ip address add 192.168.168.1/33 dev eth0, the prefix length is specified as /33, which is not a valid prefix length. In IP networking, the prefix length specifies the number of bits in the network portion of the address. For example, a netmask of 255.255.255.0 corresponds to a prefix length of /24, because the first 24 bits of the address are used for the network portion. The valid prefix lengths depend on the address class and type. For IPv4 addresses, the prefix length must be between 0 and 32. A prefix length of 33 is not valid, and that is why the command produced an error. To fix the issue, the systems administrator should use a valid prefix length in the IP address/netmask, such as /32 if the address is a host address or /24 if the address is a network address. For example: ip address add 192.168.168.1/32 dev eth0

upvoted 2 times

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Pinnubhai

1 year, 12 months ago

Selected Answer: A

AAAAAAAA

upvoted 5 times

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