Exam: 200-301: Cisco Certified Network Associate (CCNA) 0 Likes
A network engineer must configure an interface with IP address (CCNA 200-301)
Updated on 12/05/2024
A network engineer must configure an interface with IP address 10.10.10.145 and a subnet mask equivalent to 11111111.11111111.11111111.11111000. Which subnet mask must the engineer use?
A. /29
B. /30
C. /27
D. /28
Solution
Correct answer: A. /29.
To find the correct subnet mask, we need to convert the binary representation to a decimal representation or a CIDR notation.
The binary representation 11111111.11111111.11111111.11111000 can be converted to a decimal representation as follows:
255.255.255.248
This is equivalent to a CIDR notation of /29.
Category: IP Connectivity
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