CCENT Exam Cram (Exam 640-822)

Chapter 3. Concepts in IP Addressing

Terms You’ll Need to Understand

• Binary
• Hexadecimal
• Decimal
• Octet
• IP address
• Subnet Mask
• Subnet
• Host
• Increment

Techniques You’ll Need to Master

• Identifying Address Class and Default Mask
• Determining Host Requirements
• Determining Subnet Requirements
• Determining the Increment

Introduction

The CCNA exam(s) require a perfect fluency in subnetting. Success requires speed and accuracy in answering the many questions you will see on this topic. The key to this level of fluency is practice—you must work at your skills until they become second nature.

The following sections discuss binary and hexadecimal numbering systems as compared with the more familiar decimal system. An understanding of binary, in particular, is ...