Deck 2: Tcpip Concepts Review

Question 1

The HTTP service uses port ____.

A)25
B)53
C)69
D)80

Answer 1

D

Question 2

____ is an attack that relies on guessing the ISNs of TCP packets.

A)ARP spoofing
B)Session hijacking
C)DoS
D)Man-in-the-middle

Answer 2

B

Question 3

In the TCP/IP stack, the Transport layer includes network services and client software.

Answer 3

False

Question 4

TCP stands for ____.

A)Transfer Control Protocol
B)Transmission Control Protocol
C)Transfer Congestion Protocol
D)THE Control Protocol

Question 5

The DNS service uses port ____.

A)25
B)53
C)69
D)80

Question 6

The SMTP service uses port ____.

A)25
B)53
C)69
D)80

Question 7

In the TCP/IP stack, the ____ layer is concerned with physically moving electrons across a medium.

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

Question 8

The ____-layer protocols are the front ends to the lower-layer protocols in the TCP/IP stack.

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

Question 9

No matter what medium connects computers on a network-copper wires, fiber-optic cables, or a wireless setup-the same protocol must be running on all computers if communication is going to function correctly.

Question 10

The most widely used is protocol is ____.

A)IPX/SPX
B)ATM
C)TCP/IP
D)NetBIOS

Question 11

In the TCP/IP stack, the ____ layer is where applications and protocols, such as HTTP and Telnet, operate.

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

Question 12

The TFTP service uses port ____.

A)25
B)53
C)69
D)80

Question 13

A hex number is written with two characters, each representing a byte.

Question 14

An octal digit can be represented with only three bits because the largest digit in octal is seven.

Question 15

To retrieve e-mail from a mail server, you most likely access port 119.

Question 16

A(n) ____ is the logical, not physical, component of a TCP connection.

A)ISN
B)socket
C)port
D)SYN

Question 17

In the TCP/IP stack, the ____ layer uses IP addresses to route packets.

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

Question 18

____ was the standard for moving or copying large files and is still used today, although to a lesser extent because of the popularity of HTTP.

A)FTP
B)TFTP
C)SNMP
D)SMTP

Question 19

In the TCP/IP stack, the ____ layer is concerned with controlling the flow of data, sequencing packets for reassembly, and encapsulating the segment with a TCP or UDP header.

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

Question 20

The POP3 service uses port ____.

A)110
B)119
C)135
D)139

Question 21

The Microsoft RPC service uses port ____.

A)110
B)119
C)135
D)139

Question 22

The Network News Transport Protocol service uses port ____.

A)110
B)119
C)135
D)139

Question 23

In TCP, the ______________________________ is a 32-bit number that tracks the packets received by the node and allows reassembling of large packets that have been broken up into smaller packets.

Question 24

An octet is equal to ____________________ bits, which equals one byte.

Question 25

____ is a fast but unreliable delivery protocol that operates on the Transport layer.

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

Question 26

UDP stands for ____.

A)User Datagram Protocol
B)Universal Datagram Protocol
C)User Data Packet
D)Universal Data Packet

Question 27

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
the main protocol for transmitting e-mail messages across the Internet

Question 28

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
the primary protocol used to communicate over the World Wide Web

Question 29

The binary number 11000001 converted to decimal is ____.

A)128
B)164
C)193
D)201

Question 30

In addition to a unique network address, each network must be assigned a(n) ____________________, which helps distinguish the network address bits from the host address bits.

Question 31

The IP in TCP/IP stands for ____________________.

Question 32

TCP is a(n) ____________________ protocol, which means the sender doesn't send any data to the destination node until the destination node acknowledges that it's listening to the sender.

Question 33

Each Class C IP address supports up to ____ host computers.

A)254
B)512
C)65,000
D)16 million

Question 34

The NetBIOS service uses port ____.

A)110
B)119
C)135
D)139

Question 35

In the TCP/IP stack, the ____________________ layer is responsible for getting data packets to and from the Application layer by using port numbers.

Question 36

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
allows different operating systems to transfer files between one another

Question 37

What type of class has the IP address 193.1.2.3?

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

Question 38

Based on the starting decimal number of the ____ byte, you can classify IP addresses as Class A, Class B, or Class C.

A)first
B)second
C)third
D)fourth

Question 39

In the TCP/IP stack, the ____________________ layer represents the physical network pathway and the network interface card.

Question 40

____ is a connectionless protocol.

A)TCP
B)UDP
C)FTP
D)POP3

Question 41

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
TCP header flag that is used to signify urgent data

Question 42

What steps are involved in TCP's "three-way handshake"?

Question 43

What is the "poor man's firewall"?

Question 44

What is DNS used for?

Question 45

What are the critical components of a TCP header? How may hackers abuse them?

Question 46

What is ICMP used for?

Question 47

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
TCP header flag that signifies the beginning of a session

Question 48

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
enables multiple users to communicate over the Internet in discussion forums

Question 49

Often technical personnel who aren't familiar with security techniques think that restricting access to ports on a router or firewall can protect a network from attack. Is this a good solution?

Question 50

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
TCP header flag used to deliver data directly to an application

Question 51

How many host addresses can be assigned with a subnet mask of 255.255.255.0? Give a brief description of how you calculated the result.

Question 52

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
primarily used to monitor devices on a network, such as remotely monitoring a router's state

Question 53

How does the octal numbering system relate to network security? You may answer this question by providing an example.

Question 54

What is the binary numbering system and why was it chosen by computer engineers to be used in computers?

Question 55

MATCHING
Match each term with the correct statement below.
a.FTP
f.IRC
b.SMTP
g.URG
c.SNMP
h.SYN
d.SSH
i.PSH
e.HTTP
enables a remote user to log on to a server and issue commands

Question 56

What is a Class B IP address?

Question 57

UDP is an unreliable data delivery protocol. Why is it widely used on the Internet?