Chapter 7 Introduction to TCP/IP

THE FOLLOWING COMPTIA A+ 220–901 EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:

  • ✓ 2.3 Explain properties and characteristics of TCP/IP.
    • IPv4 vs. IPv6
    • Public vs. private vs. APIPA/link local
    • Static vs. dynamic
    • Client-side DNS settings
    • Client-side DHCP
    • Subnet mask vs. CIDR
    • Gateway
  • ✓ 2.4 Explain common TCP and UDP ports, protocols, and their purpose.
    • Ports
      • 21—FTP
      • 22—SSH
      • 23—Telnet
      • 25—SMTP
      • 53—DNS
      • 80—HTTP
      • 110—POP3
      • 143—IMAP
      • 443—HTTPS
      • 3389—RDP
      • 137–139, 445—SMB
      • 548 or 427—AFP
    • Protocols
      • DHCP
      • DNS
      • LDAP
      • SNMP
      • SMB
      • CIFS
      • SSH
      • AFP
    • TCP vs. UDP

Networking protocols are a lot like human languages in that they are the language that computers speak when talking to each other. If computers don’t speak the same language, they ...

Get CompTIA® A+® Complete Deluxe Study Guide: Exams 220-901 and 220-902, 3rd Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.

Start your free trial