Title: Module 5 Review Questions
Course: CNT 2001 Computer Networks & Communications > Section: Module 5 Network Protocols

Q: Which of the following best describes what the ICMP protocol is used for?
- Sending Internet Protocol control messages to other computers.
- Sending messages to a specific group of computers.
- Altering the physical addresses of packets so that they can be sent to their next destination.
- Managing networks.
A: Sending Internet Protocol control messages to other computers.

Q: What two ports does FTP use? (Choose two.)
- 80
- 20
- 21
- 143
A: 20; 21

Q: What port does DNS use?
- 123
- 23
- 69
- 53
A: 53

Q: What port does HTTP use?
- 23
- 80
- 25
- 22
A: 80

Q: What port does Telnet use?
- 25
- 23
- 53
- 69
A: 23

Q: What port does SMTP use?
- 21
- 22
- 25
- 161
A: 25

Q: What protocol is used in conjunction with HTTP to make it secure?
- SSL/TSL
- SSH
- POP3
- SIP
A: SSL/TSL

Q: What two protocols are components of VoIP? (Choose two.)
- SIP
- TCP
- IMAP3
- RTP
A: SIP; RTP

Q: What protocol is used to help match IP addresses with URLs?
- TFTP
- CIDR
- DNS
- SNMP
A: DNS

Q: What is the currently most commonly used link state routing protocol?
- IGP
- EGP
- IS-IS
- OSPF
A: OSPF