Deck 2: Introduction to Networking

Question 1

The WWW is a physical set of networks.

Answer 1

False

Question 2

Which term refers to unwanted noise from a signal coming across the media at multiple frequencies?

A) Impulse noise
C) Crosstalk
B) White noise
D) Impulse noise

Answer 2

B

Question 3

What is the primary reason we create networks?

A) To exchange information
B) To share scarce or expensive resources
C) To allow distributed organizations to act as if they are centrally located
D) To allow centrally located organizations to act as if they are distributed

Answer 3

A

Question 4

The TCP/IP network model was developed after the OSI Reference Model.

Question 5

UDP is a connection-oriented datagram protocol.

Question 6

In ____ polling, the central control unit, usually a server, polls each client to determine if it has traffic to transmit.

A) roll ahead
C) go-ahead
B) roll-call
D) call-ahead

Question 7

Protocols that are widely accepted become standards.

Question 8

Which type of multiplexing is found exclusively in fiber-optic communications?

A) Phase division multiplexing
C) Time division multiplexing
B) Frequency division multiplexing
D) Wave division multiplexing

Question 9

Logical topologies indicate how networks function.

Question 10

____ is the interconnection of groups or systems with the purpose of exchanging information.

A) Multiplexing
C) Networking
B) Channeling
D) Data communications

Question 11

Which port number is used by the Telnet protocol?

A) 20
C) 22
B) 21
D) 23

Question 12

____ uses analog frequencies to encode one or more bits, by measuring the height of the signal.

A) Amplitude shift keying (ASK)
C) Pulse amplitude modulation (PAM)
B) Frequency shift keying (FSK)
D) Phase shift keying (PSK)

Question 13

Which network typically covers a region the size of a municipality, county, or district?

A) Metropolitan area network
C) Campus area network
B) Wide area network
D) Local area network

Question 14

Which term refers to the loss of signal strength as the signal moves across media?

A) Distortion
C) Attenuation
B) Jitter
D) Impulse noise

Question 15

The standard for wireless networks falls under IEEE ____.

A) 802.3
C) 802.11
B) 802.5
D) 802.21

Question 16

____ is now the de facto industry standard for short range wireless communications between devices.

A) Infrared
C) Wi-Fi
B) Bluetooth
D) Microwave

Question 17

In ____ networks, the individual users or clients directly interact with one another, sharing resources without the benefit of a central repository or server.

A) local area network
C) server-based
B) peer-to-peer
D) body area

Question 18

Which cable is all but obsolete in data communications with the exception of its use in the cable television infrastructure to support cable modem-based high-speed Internet access for residences?

A) Coaxial
C) STP
B) UTP
D) Fiber-optic

Question 19

Which standards organization is the global leader in developing and publishing international standards?

A) American National Standards Institute (ANSI)
B) The Internet Society (ISOC)
C) International Telecommunications Union (ITU)
D) International Organization for Standardization (ISO)

Question 20

Which protocol is considered to be a dominant protocol for local area networking?

A) Ethernet
C) PPP
B) Token ring
D) FDDI

Question 21

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
An OSI network model layer responsible for placing the transmission signal carrying the message onto the communications media.

Question 22

Which OSI model layer has the largest number of risks and attacks?

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

Question 23

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
A TCP/IP network model layer that includes the Data Link layer and the Physical layer.

Question 24

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
An OSI network model layer responsible for networking support.

Question 25

The combination of Network layer address and port is referred to as a(n) ____________________.

Question 26

The TCP/IP network model Transport layer connects applications through the use of ____.

A) addresses
C) hubs
B) ports
D) sockets

Question 27

The process of modification or manipulation of the medium so that it can carry the message is known as ____________________.

Question 28

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
An OSI network model layer responsible for data translation and encryption functions.

Question 29

A(n) ____________________ is the pattern of associations among network components.

Question 30

At the physical layer, a(n) ____________________ is a device that provides a physical connection between a system and a network.

Question 31

Which protocol is typically used for applications such as streaming media?

A) UDP
C) TCP
B) SCTP
D) SMTP

Question 32

Which protocol is used for modifying and querying directory services?

A) LDAP
C) SMB
B) IRC
D) RDP

Question 33

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
An OSI network model layer responsible for providing users with a number of services they can use to exchange information.

Question 34

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
An OSI network model layer responsible for establishing, maintaining, and terminating communications sessions between two systems.

Question 35

In the TCP/IP network model, data from the end user's utilities (the message) is passed down to the ____ layer for processing.

A) Session
C) Presentation
B) Transport
D) Internet

Question 36

On the server site, what is the de facto standard for transfer-ring e-mail between post office servers across the Internet?

A) IMAP
C) S-MIME
B) POP
D) SMTP

Question 37

____________________ is the exchange of computer-based or other digital messages across a medium.

Question 38

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
A TCP/IP network model layer that serves to move packets across one or more networks.

Question 39

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
An OSI network model layer responsible for communications between networks.

Question 40

Match each item with a statement below.
a.Application
f.Data Link
b.Presentation
g.Physical
c.Session
h.Internet
d.Transport
i.Subnet
e.Network
An OSI network model layer responsible for providing reliable end-to-end transfer of data between user applications.

Question 41

Describe one of the two risks within the OSI network model's Transport layer.

Question 42

Describe three disadvantages of WLANs.

Question 43

How does the TCP protocol provide a reliable byte stream?

Question 44

Explain the challenge in digital communications regarding the transmission of a long string of values and describe how it can be overcome.

Question 45

Describe the two rules guiding the notation of IPv6.

Question 46

From a security standpoint, how do switches increase the relative protection of networking communications?

Question 47

Describe the premise of the OSI Reference Model.

Question 48

Describe the primary focus of security at the Physical layer and explain where it is most problematic.

Question 49

What is the purpose of the Internet Assigned Numbers Authority (IANA) standards organization?

Question 50

Explain how the Stream Control Transmissions Protocol (SCTP) is used within the TCP/IP network data model.