link-local addresses always start at fe80::/10
each hex number takes 4 bits to represent
fe80 is
1111 – F
1110 – E
1000 – 8
0000 – 0
FE80 = 1111 1110 1000 0000
the mask is /10 so the first 10 bits are invariable
9th bit is always 1, 10th bit is always 0, that makes the maximum value for the first group of hex numbers in binary: 1111 1110 1011 1111, or FEBF in hex
the entire range would be… FE80:: to FEBF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
that’s a HUGE space. nothing new tho as this is ipv6 we’re talking about.
this means option B could be valid too. and it is
link-local addresses always start at fe80::/10
each hex number takes 4 bits to represent
fe80 is
1111 – F
1110 – E
1000 – 8
0000 – 0
FE80 = 1111 1110 1000 0000
the mask is /10 so the first 10 bits are invariable
9th bit is always 1, 10th bit is always 0, that makes the maximum value for the first group of hex numbers in binary: 1111 1110 1011 1111, or FEBF in hex
the entire range would be… FE80:: to FEBF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF
that’s a HUGE space. nothing new tho as this is ipv6 we’re talking about.
this means option B could be valid too. and it is
some reference:
http://en.wikipedia.org/wiki/Reserved_IP_addresses
http://en.wikipedia.org/wiki/Link-local_address
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Correct answers B & C. I’m starting loose my trust to this site..
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How abt answer B?
im confused i think B&C should b correct, am i correct?
pls xplain me
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link local starts with f380..ans i c)
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link local starts with FE80..ans i c)
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