Chapter 7 Introduction to TCP/IP

Question 1

Protocol

Ch.7- pg.311

Answer 1

• Set of rules that govern communications

Question 2

TCP/IP

Ch.7- pg.312

Answer 2

• Transmission Control Protocol/ Internet Protocol
• Most popular
• Contains dozens of different protocols
• Robust and flexible
• Works with Linux, UNIX, & Windows
• Based on the DOD model

Question 3

DOD Model Layers and Protocols

Ch.7- pg.313

Answer 3

• Process/Application Layer:
  
  • FTP, HTTP, POP3
• Host-to-Host Layer:
  
  • UDP,TCP
• IP Layer
  
  • ICMAP, ARP
• Network Access Layer:
  
  • Ethernet, Token Ring, etc.

Question 4

Process/Application Layers

Ch.7- pg.314-317

Answer 4

• FTP (File Transfer Protocol)- Transfers files
• HTTP(Hypertext Transfer Protocol)- manages communication between web server and clients
• HTTPS (Secure)

Question 5

Telnet

Ch.7- pg.318

Answer 5

• Very old
• Lets a user on one computer log in to another on the same network
• Unsecure

Question 6

Host-to-Host Layer

Ch.7- pg.318

Answer 6

• TCP

- UDP

Question 7

TCP

Ch.7- pg.318

Answer 7

• Transmission Control Protocol

- Guarantees packet delivery through a virtual circuit and data acknowledgments

Question 8

UDP

Ch.7- pg.318

Answer 8

• User Datagram Protocol

- Doesn’t do what TCP does

Question 9

Port numbers

Ch.7- pg.318

Answer 9

• TCP and UDP use port numbers

Question 10

Internet Layer Protocol

Ch.7- pg.320

Answer 10

• ICMP (Internet Control Message Protocol)
• ARP (Address Resolution Protocol)
• RARP (Reverse)

Question 11

ICMP

Ch.7- pg.320

Answer 11

• Delivers error messages

Question 12

ARP

Ch.7- pg.320

Answer 12

• Resolves logical IP addresses to physical MAC addresses

Question 13

RARP

Ch.7- pg.320

Answer 13

• Resolves MAC addresses to IP addresses

Question 14

IP Addressing

Ch.7- pg.320

Answer 14

• To communicate each device needs to have a unique IP address
• It is called as host

Question 15

Binary Codes

Ch.7- pg.321

Answer 15

• Binary bit is a value with possible states: on equals 1 and off equals 0

Question 16

Parts of an IP Address

Ch.7- pg.322

Answer 16

• Network ID and Host ID

Question 17

IPv4

Ch.7- pg.322-323

Answer 17

• Class A- 1st bit set is from 0-127; for large networks
• Class B- 1st 2 sets are set at 10; for medium sized networks
• Class C- 1st 3 sets are at at 110; for small networks

Question 18

Public IP Addresses

Ch.7- pg.325

Answer 18

• Used on the internet

Question 19

Private IP Addresses

Ch.7- pg.325

Answer 19

• Not Routable on the internet

Question 20

NAT

Ch.7- pg.325

Answer 20

• Network Address Translation
• Runs on your router
• Translates Priviate IPs to Public IPs

Question 21

Automatic Private IP Addressing

Ch.7- pg.326

Answer 21

• APIPA

- Automatically configures IP-based hosts that are unable to reach a DHCP server

Question 22

IPv6

Ch.7- pg.327

Answer 22

• 128-bit addresses

- Provides for 3.4 x 10 (38 exponent)