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Hexadecimal question

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16 years 1 month ago #28121 by Chojin
Hexadecimal question was created by Chojin
Everybody knows Binairy, Decimal, Hexadecimal (Thats my assumption :p)... but my real question..

Why do we NEED hexadecimal for our Cisco certification?
I know i've 'learned' hexadecimal for my CCNA exam (CCNP certified right now).. but I haven't found a great use for Hex until so far..

anyone has a great answer?!

CCNA / CCNP / CCNA - Security / CCIP / Prince2 / Checkpoint CCSA
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16 years 1 month ago #28122 by r0nni3
Replied by r0nni3 on topic Re: Hexadecimal question
MAC addresses and maybe in the near future IPv6... I wouldnt really know any other uses for it really

Currently working as Cisco Engineer at Neon-Networking.

Certifications:
CCNA - Have it
CCNA Security - Have it
CCSP - Almost!!!!
CCIE Security - Not so far away dream
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16 years 1 month ago #28123 by S0lo
Replied by S0lo on topic Re: Hexadecimal question
Hi Chojin,

Not a great answer may be. Nothing really very important about hex I guess (at least for CCNA) other than that it's used for MAC addresses as you know.

In computer engineering field however, hex is some times useful for writing down long 32bit or 64bit memory addresses or values, such as in assembly programming. Hex makes it quicker to write these numbers since each 4bits will map quickly to a single digit in hex. Its not that quick to convert binary to decimal as you know.

By the way, Congrats on your CCNP ;)

Studying CCNP...

Ammar Muqaddas
Forum Moderator
www.firewall.cx
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16 years 1 month ago #28129 by Chojin
Replied by Chojin on topic Re: Hexadecimal question
Thanks, covered my ONT with a 1000 :-)

Indeed the address notation is in Hex, but still converted to binairy when transported.... until now I haven't found a real usage for hex... maybe Multicast is a nice one for hex (Mcast > IPv6)..

Currently thinking about going for CCVP or CCSP....

CCNA / CCNP / CCNA - Security / CCIP / Prince2 / Checkpoint CCSA
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