Which subnet mask would be used for a network that has a maximum of 300 devices?
- 255.255.255.0
- 255.255.254.0
- 255.255.252.0
- 255.255.248.0
- 255.255.240.0
Explanation: A subnet mask of 255.255.255.0 accommodates 254 devices (2A8 = 256 - 2 for the network number and broadcast). A subnet mask of 255.255.254.0 accommodates 510 devices. A subnet mask of 255.255.252.0 handles up to 1022 devices. A subnet mask of 255.255.248.0 supports up to 2046 devices. Finally, a mask of 255.255.240.0 is used for a network that needs up to 4094 addresses.
Exam with this question: CCNA 2 v5 Chapter 6: Check Your Understanding Questions Answers
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