A customer wants to separate the finance department from the marketing department. The network administrator suggests segmenting the existing Class C network into two sections and readdressing all…

The correct answer is B. /25. To split an existing Class C (/24) network into exactly two separate subnets, you borrow 1 host bit, producing two equal-size subnets. That results in a /25 mask, which divides the original /24 into two halves.

Submitted by deeparc· Mar 6, 2026Network implementation

Question

A customer wants to separate the finance department from the marketing department. The network administrator suggests segmenting the existing Class C network into two sections and readdressing all devices appropriately. Which of the following subnet masks should the network administrator use?

Options

A/24
B/25
C/26
D/27

How the community answered

(25 responses)

A
4% (1)
B
76% (19)
C
8% (2)
D
12% (3)

Explanation

To split an existing Class C (/24) network into exactly two separate subnets, you borrow 1 host bit, producing two equal-size subnets. That results in a /25 mask, which divides the original /24 into two halves.

Community Discussion

No community discussion yet for this question.

Full N10-009 Practice