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How many usable hosts are available?

You have been allocated a 192.168.100.0/22 network.
How many usable hosts are available?

PrepAway - Latest Free Exam Questions & Answers

A.
510

B.
512

C.
1022

D.
1024

Explanation:

2 Comments on “How many usable hosts are available?

  1. rachid says:

    BitsMask Mask IPs Hosts DottedDecimalMask Classful
    /8 8 16,777,216 16,777,214 255.0.0.0 ClassANetwork
    /16 16 65,536 65,534 255.255.0.0 ClassBNetwork
    /17 17 32,768 32,766 255.255.128.0
    /18 18 16,384 16,382 255.255.192.0
    /19 19 8,192 8,190 255.255.224.0
    /20 20 4,096 4,094 255.255.240.0
    /21 21 2,048 2,046 255.255.248.0
    /22 22 1,024 1,022 255.255.252.0
    /23 23 512 510 255.255.254.0
    /24 24 256 254 255.255.255.0 ClassCNetwork
    /25 25 128 126 255.255.255.128
    /26 26 64 62 255.255.255.192
    /27 27 32 30 255.255.255.224
    /28 28 16 14 255.255.255.240
    /29 29 8 6 255.255.255.248
    /30 30 4 2 255.255.255.252
    /31 31 0 255.255.255.254
    /32 32 1 1 255.255.255.255 SingleHostAddress




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  2. rachid says:

    192.168.100.0/22
    Network Address:192.168.100.0
    Subnet Mask:’ 255.255.252.0
    11111111.11111111.11111100.00000000
    subnet:2^6=64 ” 6is the number od 1s on the third octet”
    Hosts:2^10 – 2 = 1022 “10 is the number 0s “




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