O'Reilly logo

CompTIA® Network+® Review Guide, Second Edition by Bill Ferguson

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Appendix A

Answers to Review Questions

Chapter 1: Domain 1 Network Technologies

  1. C. A Media Access Control (MAC) address is a unique physical address that is assigned to each network interface card. MAC addresses are “burned in” to the card at the manufacturer.
  2. C. An IPv4 address is a 32-bit address. It is composed of four sections of 8 bits each, called octets. Each octet is converted to decimal for configuration purposes, but the computer uses the entire 32-bit address for communication.
  3. B. If you have a Class B address with a default subnet mask, then the current subnet mask is 255.255.0.0. This means you have 16 bits for networks and 16 bits for hosts. If you want to create eight subnets, then you need to solve for 2s > 8. Solving for s, ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required