CCNA Question of the Week

In this weekly series, Jill Liles posts questions and answers to help readers prepare for the CCNA exam.

What is the class of the following address:

  1. class A
  2. class B
  3. class C
  4. class D
  5. class E


The correct answer is A.

The first octet of an address determines its class. Class A starts with 1-126; Class B starts with 128-191; Class C starts with 192-223


Related Courses:
ICND1 — Interconnecting Cisco Network Devices 1
ICND2 — Interconnecting Cisco Network Devices 2
CCNAX — CCNA Boot Camp v1.1

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