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Exam 100-105 topic 1 question 178 discussion

Actual exam question from Cisco's 100-105
Question #: 178
Topic #: 1
[All 100-105 Questions]

OSPF routing uses the concept of areas. What are the characteristics of OSPF areas? (Choose Three.)

  • A. Each OSPF area requires a loopback interface to be configured.
  • B. Areas may be assigned any number from 0 to 65535.
  • C. Area 0 is called the backbone area.
  • D. Hierarchical OSPF networks do not require multiple areas.
  • E. Multiple OSPF areas must connect to area 0.
  • F. Single area OSPF networks must be configured in area 1.
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Suggested Answer: BCE 🗳️
Definition of OSPF areas: An OSPF network may be structured, or subdivided, into routing areas to simplify administration and optimize traffic and resource utilization. Areas are identified by 32- bit numbers, expressed either simply in decimal, or often in octet-based dot-decimal notation, familiar from IPv4 address notation.
See discussion following Cisco Learning discussion.
https://learningnetwork.cisco.com/message/90832
by [deleted] at April 2, 2025, 2:53 p.m.

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