Cisco 100-105 Exam

How many primary ipv4 addresses can be assigned on a router interface?

  • A. 0
  • B. 1
  • C. 4
  • D. Unlimited
Answer: Option B.
Explanation: 

Cisco IOS software supports multiple IP addresses per interface. You can specify an unlimited number of secondary addresses but only one primary one.
Reference: http://www.cisco.com/c/en/us/td/docs/ios/12_2/ip/configuration/guide/fipr_c/1cfipadr.html

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