Module H5: Application Layer Protocol 1

Question 1

What dynamically assigns an IP address to each device on a network?

• Mom’s spaghetti
• DHCP
• Static Assignment
• Associated IP
• Host Assignment Control Socket

Answer 1

DHCP

Question 2

What is the port number used by DHCP for the server side?

• 126
• 69
• 67
• 22
• 53
• 50
• Eu

Answer 2

67

Question 3

What is the port number used by DHCP for the client side?

• 128
• 53
• 69
• 50
• 68
• 88

Answer 3

68

Question 4

What is the process referred to in DHCP where 4 main messages are exchanged to make a connection?

Answer 4

dora

Question 5

What is the first message generated by the client in order to discover if there is a DHCP server?

Answer 5

discover

Question 6

What message is sent out to see if there are any hosts using an IP in DHCP messages?

Answer 6

request

Question 7

What does FTP stand for?

Answer 7

file transfer protocol

Question 8

How many channels does FTP use to carry information?

• 1
• 2
• 4
• 6
• 8

Answer 8

2

Question 9

1. What are the two FTP channels?

• Data & Command
• Server & Client
• Binary & Push
• User & Users

Answer 9

Data & Command

Question 10

.gov would be what domain?

• Top Level
• Specialized
• Defined
• Name Server

Answer 10

Top Level

Question 11

A mobile version of a website that has an m.website.com would be what kind of domain?

Answer 11

sub domain

Question 12

A domain name maps to what?

Answer 12

ip address

Question 13

What is the first place that is checked to resolve the route when you type in a website?

Answer 13

cache

Question 14

What protocol is used to encrypt http?

Answer 14

ssl

Question 15

Do the protocols that HTTPS use run on symmetric or asymmetric keys?

• symmetric
• asymmetric

Answer 15

asymmetric

Question 16

What port does POP use?

• 53
• 255
• 60
• 110

Answer 16

110

Question 17

What year was the POP protocol created?

Answer 17

1984

Question 18

What is the closest layer to the end user?

• Presentation
• Application
• Session
• Physical

Answer 18

Presentation

Question 19

What command can be used in the command line to check the host or domain?

Answer 19

nslookup

Question 20

What port(s) does FTP use?

• 20
• 21
• 22
• 23
• 20,21
• 80,443
• 135,145,136

Answer 20

20,21

Question 21

What port does Telnet use?

• 20
• 21
• 22
• 23
• 20,21
• 80,443
• 135,145,136

Answer 21

23

Question 22

What port does SSH use?

• 20
• 21
• 22
• 23
• 20,21
• 80,443
• 135,145,136

Answer 22

22

Question 23

In the TCP model, the application layer consists of what layers? (use format xxx, xxx, xxx)

Answer 23

application, presentation, session

Question 24

What protocol allows clients on a network to obtain IP addresses?

Answer 24

dhcp

Question 25

Using the DHCP header, what is the byte offset (start byte) for the “Flags” field?

Answer 25

10

Question 26

Using the DHCP header, what is the byte offset (start byte) for the “Hardware Type” field?

Answer 26

1

Question 27

What is the byte offset of the “Total Questions” field in the DNS header?

Question 28

What is the byte offset of the “Total Questions” field in the DNS header?

Answer 28

4