Deck 9: Network Fundamentals

Question 1

All of the following are advantages of TCP over UDP EXCEPT:

A)Guaranteed delivery
B)Sequenced packets
C)Smaller header
D)Three-way handshake to establish connection

Answer 1

C

Question 2

Which protocol is based on transferring data in fixed-size packets? (The fixed packet sizes help ensure that no single data type monopolizes the available bandwidth. )

A)AppleTalk
B)ATM
C)FDDI
D)Token Ring

Answer 2

B

Question 3

A ________ is a network typically smaller in terms of size and geographic coverage and consist of two or more connected devices.Home or office networks are typically classified as this type of network.

A)local area network
B)office area network
C)wide area network
D)internal area network

Answer 3

A

Question 4

A network protocol is

A)An agreed upon format for exchanging or transmitting data between systems
B)A set of rules that employees must follow to accomplish a specific task
C)One of the layers of the OSI model
D)One of the headers in an IP packet

Question 5

All the network components are connected to a central point in which topology?

A)Star
B)Bus
C)Ring
D)Hybrid

Question 6

Which of the following is an example of a MAC address?

A)00:07:H9:c8:ff:00
B)00:39:c8:ff:00
C)00:07:e9:c8:ff:00
D)00:07:59:c8:ff:00:e8

Question 7

Packets delivered to a network,such as an office LAN,are usually sent using the destination system's

A)IP address
B)MAC address
C)Apple address
D)Logical address

Question 8

Network Address Translation (NAT)

A)Translates private (non-routable)IP addresses into public (routable)IP addresses
B)Translates the IP addresses of one protocol to the IP address of another protocol
C)Is one of the items in an IP packet header
D)Translates MAC addresses to IP addresses

Question 9

The correct sequence of the three-way handshake is

A)SYN/SYN,ACK/ACK,SYN/SYN
B)SYN/ACK,SYN/ACK,SYN/ACK
C)SYN,SYN/ACK,ACK
D)ACK,SYN/ACK,SYN

Question 10

Which of the following is a benefit that Network Address Translation (NAT)provides

A)Compensates for the lack of IP addresses
B)Allows devices using two different protocols to communicate
C)It creates a DMZ
D)Translates MAC addresses to IP addresses

Question 11

Unfortunately hackers abuse the ICMP protocol by using it to

A)Send internet worms
B)Launch denial-of-service (DoS)attacks
C)Steal passwords and credit card numbers
D)Send spam

Question 12

IP addresses are __________ bit numbers

A)16
B)32
C)64
D)128

Question 13

A(n)_______ class address supports 65,000 hosts on each of 16,000 networks,and allows three sections of the IP address to be devoted to host addressing.

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

Question 14

The main difference between TCP and UDP packets is

A)UDP packets are a more widely used protocol.
B)TCP packets are smaller and thus more efficient to use.
C)TCP packets are connection oriented,whereas UPD packets are connectionless.
D)UDP is considered to be more reliable because it performs error checking.

Question 15

Which transport layer protocol is connectionless?

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

Question 16

Which of the following is NOT a network topology?

A)Star
B)Ring
C)Integrated
D)Mixed

Question 17

Which transport layer protocol is connection oriented?

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

Question 18

Which of the following improves the security of the network by hiding internal addresses?

A)Antivirus
B)IDS
C)Star topology
D)Network Address Translation (NAT)

Question 19

What is called when network components are connected to each other in a closed loop,with each device directly connected to two other devices.

A)Star
B)Bus
C)Ring
D)Hybrid

Question 20

Network components connected to the same cable are often called "the backbone" in which topology?

A)Star
B)Bus
C)Ring
D)Hybrid

Question 21

Which of the following is a valid IP address?

A)192.168.1.1.1
B)10.266.12.13
C)172.11.11
D)12.12.12.12

Question 22

Which of the following is not a private IP address?

A)10.100.200.100
B)172.32.32.21
C)192.168.1.1
D)192.168.254.254

Question 23

A network can logically appear as one topology,but physically match a different topology.

Question 24

UDP uses a three-way handshake to establish connections.

Question 25

Address Resolution Protocol resolves a MAC address to an IP address.

Question 26

Packet delivery to distant systems is usually accomplished by the use of

A)MAC addresses
B)Domain names
C)IP Addresses
D)ARP protocol

Question 27

A network that lies completely inside a trusted area of a network,and is under the security control of the system and network administrators,is referred to as the

A)DMZ
B)Intranet
C)Extranet
D)Internet

Question 28

Encapsulating packets so they can traverse the network in a secure,confidential manner is referred to as

A)DMZ
B)Steganography
C)Tunneling
D)Layered defense

Question 29

The network that is an extension of a selected portion of a company's intranet to external partners is referred to as the

A)DMZ
B)Intranet
C)Extranet
D)Internet

Question 30

A DMZ acts as a buffer zone between the Internet,where no controls exist,and the inner,secure network,where an organization has security policies in place.

Question 31

The series of worldwide interconnected networks is referred to as the

A)DMZ
B)Intranet
C)Extranet
D)Internet

Question 32

A logical implementation of a LAN that allows computers connected to different physical networks to act and communicate as if they were on the same physical network is referred to as a

A)DMZ
B)VLAN
C)Extranet
D)Tunnel

Question 33

The buffer between the outer network where there are no controls and the inner secure network is referred to as the

A)DMZ
B)Intranet
C)Extranet
D)Internet

Question 34

TCP is connectionless and has lower overhead than UDP.

Question 35

Which protocol is responsible for resolving an IP address to a MAC address?

A)DNS
B)ARP
C)RARP
D)ICMP

Question 36

NAT translates private (nonroutable)IP addresses into public (routable)IP addresses.

Question 37

Networks without any architecture are considered to be poor.

Question 38

LAN and WAN networks can be connected.

Question 39

ICMP is a connection-oriented protocol.

Question 40

DNS resolves a domain name to an IP address.

Question 41

An agreed upon format for exchanging or transmitting data between systems is called a(n)_______________.

Question 42

What is the difference between TCP and UDP

Question 43

The process of spanning a single VLAN across multiple switches is called _______________.

Question 44

Remote Packet Delivery (where packets are delivered to a remote location)uses _________ addresses to send packets.

Question 45

_______________ describes network components that are connected to the same cable,often called "the backbone."

Question 46

_______________ translates private (nonroutable)IP addresses into public (routable)IP addresses.

Question 47

Another term for an IP packet is _______________.

Question 48

_______________ is the protocol that resolves a domain name to an IP address.

Question 49

What is a DMZ and what is it used for?

Question 50

The method of packaging packets so that they can traverse a network in a secure manner is called _______________.

Question 51

List three kinds of information contained in an IP packet header.

Question 52

Local packet delivery (where packets are delivered on a LAN)uses ________ addresses to send packets.

Question 53

What is NAT and what is it used for?

Question 54

_______________ is the protocol used to resolve an IP address to a MAC address.

Question 55

List and describe three types of network topologies.