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Question: What is CIDR?

Answer: Classless Inter-Domain Routing
CIDR is a new addressing scheme for the Internet which allows for more efficient allocation of IP addresses than the old Class A, B, and C address scheme.



Category Networking Interview Questions & Answers - Exam Mode / Learning Mode
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Question: What is CIDR?
Answer:

Classless Inter-Domain Routing
CIDR is a new addressing scheme for the Internet which allows for more efficient allocation of IP addresses than the old Class A, B, and C address scheme.
Source: CoolInterview.com

Answered by: arjun | Date: 5/30/2008 | Contact arjun Contact arjun

CIDR->CLASSLESS INTERDOMAIN ROUTING.

CIDR HELPS PREVENT THE WASTING OF IP ADDRESS ANND BY REDUCING THE REGISTERED IP ADDRESSES. Source: CoolInterview.com

Answered by: arunanoopm | Date: 1/8/2009 | Contact arunanoopm Contact arunanoopm

Classless Inter Domain Routing reduces the wastage of ip address by using mask depending upon requirements e.g.Ospf,eigrp Source: CoolInterview.com

Answered by: sachin | Date: 7/19/2009 | Contact sachin Contact sachin

CIDR associates network masks with IP network numbers independent of their traditional class. Routers that support CIDR recognize these networks as individual routes, even though they may represent an aggregation of several traditional subnets.
Also Known As: Classless Inter-Domain Routing, Classless Internet Domain Routing, supernetting
Examples:
CIDR shorthand notation writes an IP address and its associated network mask in the form xxx.xxx.xxx.xxx/n, where 'n' is a number between 1 and 31 that is the number of '1' bits in the mask. Source: CoolInterview.com

Answered by: Nadeem | Date: 10/11/2009 | Contact Nadeem Contact Nadeem

IP's are generally given in two forms:-
1. classfull ( public or private)
2. classless (VLSM, CIDR , subnetting nd supernetting )

classless interdomain routing is used for purpose of reducing ip wastage.
In case of CIDR we divide bigger networks into smaller networks based upon classless boundaries. Source: CoolInterview.com

Answered by: vishal | Date: 12/17/2009 | Contact vishal Contact vishal

classless inter-domain routing is basically done to conserve ip addresses Source: CoolInterview.com

Answered by: Sumukh Bharadwaj | Date: 5/3/2010 | Contact Sumukh Bharadwaj Contact Sumukh Bharadwaj

CIDR Stands for classless internet domain routing. It helps in preventing the wasting of IP address and nowadays we are facing the shortage of the IP address.So this CIDR helps to prevent the waste of IP address.Shortly IPV6 will come into exist....
Source: CoolInterview.com

Answered by: Doddegowda | Date: 6/11/2010 | Contact Doddegowda Contact Doddegowda


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