Hi There, I am currently studying my CCNA and doing quite a
bit of practice exams. I recently came across a questions
which totally confused my and I needs someone to explain it
to me please, the questions is: Which routes are contained
in the following summarisation address. 192.18.176.0/21. The
posiible answers are, A. 192.18.183.255, B. 192.18.159.2, C.
192.18.194.160, D. 192.18.179.4, E. 192.18.183.41, F.
192.18.184.45. According to the answer sheet the correct
ones are E and F, but when I work it out I get D,E and F,
please help
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Answer Posted / lokesh kumar verma
A,D,E 192.18.176.0/21 means block size is 8 and 192.18.176.0 will be NID. so according 3rd octate 192.18.176.0 to 192.18.183.255 is lies the range so answer will be A,D,E
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