Discussion on:

4
Comments

Join the conversation!

Follow via:
RSS
Email Alert
0 Votes
+ -
i want top level ccna interview question plz help me.....
0 Votes
+ -
hello
myself sunny , i want to know how to summarize the routes for eg:
i have these four routes 192.168.10.64/30
192.168.10.68/30
192.168.10.72/30
192.168.10.76/30
so kindly explain it in bits form..like in the last octet 64is 01000000
68is 01000100
and which bits have to be taken same.
Try re-posting in the Q&A
section.The 'Discussion' forum is for matters of general discussion, not specific problems in search of a solution. The 'Water Cooler' is for non-technical discussions. You can submit a question to 'Q&A' here:

http://www.techrepublic.com/forum/questions/post?tag=mantle_skin;content

There are TR members who specifically seek out problems in need of a solution. Although there is some overlap between the forums, you'll find more of those members in 'Q&A' than in 'Discussions' or 'Water Cooler'.

Be sure to use the voting buttons to provide your feedback. Voting a '+' does not necessarily mean that a given response contained the complete solution to your problem, but that it served to guide you toward it. This is intended to serve as an aid to those who may in the future have a problem similar to yours. If they have a ready source of reference available, perhaps won't need to repeat questions previously asked and answered. If a post did contain the solution to your problem, you can also close the question by marking the helpful post as "The Answer". . .
11111111.11111111.11111111.111111XX 30 Bit Mask - 255.255.255.240
11000000.10101010.00001010.01000000 192.168.10.64/30
XXXXXXXX.XXXXXXXX.XXXXXXXX.01000100 192.168.10.68/30
XXXXXXXX.XXXXXXXX.XXXXXXXX.01001000 192.168.10.72/30
XXXXXXXX.XXXXXXXX.XXXXXXXX.01001100 192.168.10.76/30
___________________________________
11000000.10101010.00001010.0100XXXX 192.168.10.64/28

Result: 192.168.10.64/28 >> 255.255.255.228

It is a 30 Bit Mask, so you have to focus on the fourth octet, but it is better you just concenrate on 32 bits instead of octets. Convert the decimal to binary format and take the common bits out of the 30 bits.

Here the first 28 bits are common, so the mask is 28, which is 255.255.255.240(255-15)
Keyboard Shortcuts:
Prev
Next
Toggle
Join the conversation
Formatting +
BB Codes - Note: HTML is not supported in forums
  • [b] Bold [/b]
  • [i] Italic [/i]
  • [u] Underline [/u]
  • [s] Strikethrough [/s]
  • [q] "Quote" [/q]
  • [ol][*] 1. Ordered List [/ol]
  • [ul][*] · Unordered List [/ul]
  • [pre] Preformat [/pre]
  • [quote] "Blockquote" [/quote]

Join the TechRepublic Community and join the conversation! Signing-up is free and quick, Do it now, we want to hear your opinion.