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Categories >> Certifications >> Cisco-Certifications >> CCNA
 
 
 
Question 
Which IP address and wildcard mask would you use in your 
ACL to block all the
hosts in the subnet 192.168.16.43/28?
 Question Submitted By :: Guest
I also faced this Question!!     Rank Answer Posted By  
 
Answer
 
given ip is 192.168.16.43/28
scince it is class c ip address and subnating is done with 4 bit
thus
128+64+32+16=240
block size
256-240=16
0    16    32
--    --   --
--    --   -- (and so on)
15    31   47 
so wild card used for block all the ip address in the acl
is
192.168.16.32 0.0.0.14
 
0
Jitendera Kumar Sinha
 
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