Which dotted-decimal subnet mask corresponds to a /26?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Prepare with flashcards and multiple choice questions for the Cyber Fundamentals Block 3 Test. Each question includes hints and explanations to boost understanding. Get fully equipped for your exam!

Multiple Choice

Which dotted-decimal subnet mask corresponds to a /26?

Explanation:
A /26 has 26 ones in the subnet mask, so in dotted decimal it becomes 255.255.255.192. This works because the first three octets are fully on (255), and the last octet uses 11000000 in binary, which is 192 in decimal, giving two high bits set. That setup creates subnets of 64 addresses in the final octet (0–63, 64–127, 128–191, 192–255). The other masks correspond to different prefix lengths: 255.255.255.0 is /24, 255.255.255.224 is /27, and 255.255.255.255 is /32.

A /26 has 26 ones in the subnet mask, so in dotted decimal it becomes 255.255.255.192. This works because the first three octets are fully on (255), and the last octet uses 11000000 in binary, which is 192 in decimal, giving two high bits set. That setup creates subnets of 64 addresses in the final octet (0–63, 64–127, 128–191, 192–255). The other masks correspond to different prefix lengths: 255.255.255.0 is /24, 255.255.255.224 is /27, and 255.255.255.255 is /32.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy