what is difference between subnet-mask and wildcard mask?

Answer Posted / sarbjeet sohi

Subnet-mask is used to match contigous bits, means in subnet mask there is no 1 after 0. Its always from high (1's) to low (0's).
EXAMPLE:- subnetmask-----255.255.0.0
BInary----- 11111111.11111111.00000000.00000000

In above example there is continous 1's and continous 0's
It cannot be like this :-

11111111.00000000.11111111.00000000 = 255.0.255.0
Because subnet mask is used only for the classful and when CIDR comes WILDCARD mask is launched. The above bit pattern in WCM tells to match 2nd and 4th octect.1st and 3rd can be ignored.

Is This Answer Correct ?    1 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the size of hello packets in eigrep protocol?

637


How many potions of ip?

654


What do you understand by poe (power over ethernet)?

705


What is the simplest way to remotely configure a router?

637


Mention what BOOTP is?

751






Define the igp (interior gateway protocol)?

640


In stead of 0.0.0.0 wild card mask what you can write after ip?

626


Can you explain L2TP?

1635


Why ip address called logical address?

651


What is difference between tcp/ip and osi model?

655


What is point-to-point protocol in ccna?

695


Explain why is udp lease favored when compared to tcp?

688


Wild card mask always in odd value or even?

652


What is the mau?

637


If there is only 2 host in bus topology is that possible collision accord?

676