A customer wants to segment the local network into eight sections with 30 devices each. A junior network technician needs to select the appropriate subnet mask for the customer's chosen Class С…

The correct answer is C. /27. A /27 mask provides 32 total addresses per subnet, 30 of which are usable. A Class C network divided into /27 segments yields exactly eight subnets, each supporting the required 30 devices.

Submitted by femi9· Mar 6, 2026Network implementation

Question

A customer wants to segment the local network into eight sections with 30 devices each. A junior network technician needs to select the appropriate subnet mask for the customer's chosen Class С network. Which of the following meets the requirement?

Options

A/25
B/26
C/27
D/28

How the community answered

(27 responses)

A
4% (1)
B
15% (4)
C
74% (20)
D
7% (2)

Explanation

A /27 mask provides 32 total addresses per subnet, 30 of which are usable. A Class C network divided into /27 segments yields exactly eight subnets, each supporting the required 30 devices.

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