Deck 8: Network Communications

Question 1

The TCP/IP suite consists of only two protocols: Transmission Control Protocol and Internet Protocol.

Answer 1

False

Question 2

The sequence in which packets are received at the destination can be different from the sequence in which they are sent.

Answer 2

True

Question 3

TCP is a connectionless protocol.

Answer 3

False

Question 4

TCP focuses on transfer time for data packets.

Question 5

By default, the ping command sends an Echo Request every second until you press Ctrl+C.

Question 6

The ____ layer consists of cables or other connection media.

A) Physical
B) Data Link
C) Transport
D) Internet

Question 7

When a message travels from one computer to the next, it starts at the ____ layer.

A) Physical
B) Transport
C) Application
D) Internet

Question 8

The Application layer receives packets from the ____ layer and opens them to convert the message back to its original form.

A) Data Link
B) Transport
C) Physical
D) Internet

Question 9

The most important protocol at the Internet layer is ____.

A) IP
B) ICMP
C) TCP
D) UDP

Question 10

When a fast transfer rate of data packets is more important than an error-free and accurate transfer, ____ can be used.

A) IP
B) ICMP
C) TCP
D) UDP

Question 11

Which layer sits on top of the TCP/IP model?

A) Application
B) Network
C) Physical
D) Transport

Question 12

What protocol exists in the TCP/IP model's Application layer?

A) UDP
B) ICMP
C) SMTP
D) IP

Question 13

A(n) ____ is a unique number that identifies a computer or device on a TCP/IP network.

A) port number
B) port address
C) IP address
D) tag number

Question 14

The format of an IP address is four numbers separated by ____.

A) spaces
B) dashes
C) colons
D) periods

Question 15

The ifconfig command is an administrative utility, so you must have ____ privileges to use it.

A) administrator
B) root
C) supervisor
D) owner

Question 16

Two to the power of three (2³) is ____.

A) six
B) eight
C) nine
D) 32

Question 17

What is the binary equivalent of the decimal number 112?

A) 00000111
B) 00111100
C) 01110000
D) 11100000

Question 18

Which term refers to transmitting to multiple destinations from a single source?

A) tunneling
B) multicasting
C) multisourcing
D) looping

Question 19

Which IP address class is used for experimentation?

A) Class A
B) Class B
C) Class D
D) Class E

Question 20

What IP address is the local host for every computer?

A) 1.1.1.1
B) 1.0.0.127
C) 127.0.0.1
D) 255.255.255.255

Question 21

What command is used to configure NICs?

A) ifconfig
B) niconfig
C) ping
D) config

Question 22

Which subnet mask is used for a Class C network?

A) 255.0.0.0
B) 255.255.255.0
C) 0.255.255.255
D) 0.0.0.255

Question 23

How do you restart a Linux computer?

A) Type restart and press Enter.
B) Type reboot and press Enter.
C) Type exit and press Enter.
D) Type recycle and press Enter.

Question 24

By default, which ping command option can only be used by the root user?

A) -c n
B) -f
C) -q
D) -w n

Question 25

Which ping command option forces the ping command to send packets without displaying statistics onscreen until after the ping has stopped?

A) -c n
B) -f
C) -q
D) -w n

Question 26

____________________ are packages of data to be routed through a network.

Question 27

The ____________________ layer is responsible for delivering data from one location to another on the network.

Question 28

A(n) ____________________ represents a single binary value.

Question 29

The ping command uses ____________________ to send an Echo Request packet to a specified network device on the network and waits for a reply.

Question 30

Match each statement with an item

-A connectionless protocol that uses IP to get packets from one computer to another.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 31

Match each statement with an item

-A connectionless protocol used for sending and receiving requests between the client and server on a network.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 32

Match each statement with an item

-A protocol used to generate IP error messages.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 33

Match each statement with an item

-A protocol used to send e-mail in user-level client applications.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 34

Match each statement with an item

-A virtual terminal protocol for connecting to a remote computer.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 35

Match each statement with an item

-A protocol used to map a fully qualified domain name with an IP address.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 36

Match each statement with an item

-A connection-oriented protocol responsible for keeping track of packets and reassembling them into a single file after they have all arrived.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 37

Match each statement with an item

-A protocol used to move files from one computer to another efficiently and accurately.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 38

Match each statement with an item

-A protocol that handles the delivery of data as packets.

A) ICMP
B) UDP
C) IP
D) TCP
E) Telnet
F) FTP
G) SMTP
H) DNS
I) HTTP

Question 39

Describe how the protocols in the TCP/IP suite are organized and list the layers.

Question 40

Define fragmentation and explain why it is used.

Question 41

Describe the binary numbering system.

Question 42

Why is it important to understand how to convert decimal numbers to binary numbers?

Question 43

What are the parts of an IP address?

Question 44

How do computers communicate with other computers on the same network and on different networks?

Question 45

Describe a Class A network.

Question 46

Describe a Class B network.

Question 47

Describe a Class C network.