Question

You are working as a network engineer for ABC Ltd. You have been instructed to translate the slash notation /20 into a subnet mask. Which of the following will you select?

1. 255.255.255.248

2. 255.255.224.0

3. 255.255.240.0

4. 255.255.255.192

Answer 1

3. 255.255.240.0

Step-by-step explanation:

To translate the slash notation /20 into a subnet mask, we need to determine the equivalent subnet mask that covers 20 bits. In this case, the subnet mask that corresponds to /20 is 255.255.240.0.

The subnet mask represents the network portion of an IP address and is used to divide the IP address into network and host parts. In the given options, option c (255.255.240.0) is the correct choice as it provides a subnet mask that covers 20 bits, ensuring a larger network range compared to the other options.