Which network mask is the equivalent of 255.255.248.0?
A.
/20
B.
/21
C.
/22
D.
/23
Explanation:
Which network mask is the equivalent of 255.255.248.0?
Which network mask is the equivalent of 255.255.248.0?
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Which network mask is the equivalent of 255.255.248.0?
Which network mask is the equivalent of 255.255.248.0?
A.
/20
B.
/21
C.
/22
D.
/23
Explanation:
BitsMask DottedDecimalMask
/8 255.0.0.0
/16 255.255.0.0
/17 255.255.128.0
/18 255.255.192.0
/19 255.255.224.0
/20 255.255.240.0
/21 255.255.248.0
/22 255.255.252.0
/23 255.255.254.0
/24 255.255.255.0
/25 255.255.255.128
/26 255.255.255.192
/27 255.255.255.224
/28 255.255.255.240
/29 255.255.255.248
/30 255.255.255.252
/31 255.255.255.254
/32 255.255.255.255
255-248= 7 => 3bit => 2^2 , 2^1 , 2^0 => 4+2+1 = 7
then 24-3= 21
B). /21