Step2Study
CompTIA A+ Core 1 (220-1201)NetworkingEasy

A technician is configuring static IP addresses for devices on an internal office LAN that should never be routable on the public internet. Which of the following address ranges should the technician use?

  1. A192.168.0.0/16
  2. B127.0.0.0/8
  3. C169.254.0.0/16
  4. D224.0.0.0/4
Show answer & explanation

Correct answer: A. 192.168.0.0/16

192.168.0.0/16 is one of the RFC 1918 private IPv4 address ranges reserved for internal networks and is not routable on the public internet. The other ranges serve different purposes: APIPA, loopback, and multicast.

Why the other options are wrong

  • B. 127.0.0.0/8 is reserved for loopback testing on the local host.
  • C. 169.254.0.0/16 is the APIPA range used when DHCP fails, not for manual private addressing.
  • D. 224.0.0.0/4 is reserved for IP multicast traffic, not host addressing.

Private IPv4 Ranges (RFC 1918)

Reserved IPv4 address blocks used for internal networks that are not routed on the public internet.

  • 10.0.0.0/8
  • 172.16.0.0/12
  • 192.168.0.0/16

Memory trick: '10, 172, 192' stay home, never roam.

Practice this question Study as flashcard All questions
Next question

More Networking questions