1 Answers

what is the subnet address?

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100-101

Given an IP address of 192.168.1.42 255.255.255.248, what is the subnet address?

A.
192.168.1.8/29

B.
192.168.1.32/27

C.
192.168.1.40/29

D.
192.168.1.16/28

E.
192.168.1.48/29

1 Answers



  1. hypmin on Sep 01, 2013 Reply

    Answers: C
    192.168.1.40/29

    Explanation:
    248 mask uses 5 bits (1111 1000)
    42 IP in binary is (0010 1010)
    The base subnet therefore is the lowest binary value that can be written without changing the
    output of an AND operation of the subnet mask and IP …
    1111 1000 AND
    0010 1010 equals
    0010 1000 – which is .40
    /24 is standard class C mask.
    adding the 5 bits from the .248 mask gives /29

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