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What does CIDR stand for in networking?

easy📝 Conceptual Q1 of 15
Computer Networks - IP Addressing
What does CIDR stand for in networking?
ACentralized Internet Domain Registry
BClassful Internet Domain Routing
CCommon Internet Data Routing
DClassless Inter-Domain Routing
Step-by-Step Solution
Solution:

  1. Step 1: Understand the acronym CIDR

    CIDR is a method used to allocate IP addresses and route IP packets.

  2. Step 2: Match the correct full form

    The correct expansion is Classless Inter-Domain Routing, which allows flexible IP address allocation.

  3. Final Answer:

    Classless Inter-Domain Routing -> Option D

  4. Quick Check:

    CIDR = Classless Inter-Domain Routing [OK]
Quick Trick: CIDR removes class boundaries for flexible IP allocation [OK]
Common Mistakes:
MISTAKES
  • Confusing CIDR with classful routing
  • Assuming CIDR is a registry
  • Mixing CIDR with DNS terms

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