Deck 6: Data Communication and the Cloud

Question 1

A(n)________ is a set of rules that two communicating devices follow.

A)domain
B)attribute
C)protocol
D)database

Answer 1

C

Question 2

The distinguishing characteristic of a LAN is ________.

A)that it connects at multiple locations
B)that it connects at a single location
C)that it is a network of networks
D)that all lines need not reside at the same geographic location

Answer 2

B

Question 3

Which of the following is true of DSL modems?

A)DSL modems use television lines for data transmission.
B)Their signals do not interfere with voice telephone service.
C)DSL modems use the same protocols as cable modems.
D)DSL services and speed are standardized across applications.

Answer 3

B

Question 4

In order for a printer or a laptop to connect to a wireless LAN,it must have a ________.

A)WNIC
B)UTP
C)POP
D)VPN

Question 5

Which of the following purposes does an HTTP protocol serve?

A)flow among switches and access points
B)provide reliable internet transporting
C)enable communication among programs
D)conduct internet routing

Question 6

Which protocol standard used for wired LAN connections specifies hardware characteristics,such as which wire carry which signals?

A)intranet
B)WiMax
C)Ethernet
D)EVDO

Question 7

The computers in two separate company sites must be connected using a ________.

A)LAN
B)WAN
C)SOHO LAN
D)MAC

Question 8

A ________ is a special-purpose computer that receives and transmits wired traffic on the LAN.

A)protocol
B)switch
C)domain
D)SOHO LAN

Question 9

The WNIC devices connect to a(n)________,which is the component of the LAN device that processes wireless traffic and communicates with the wired switch.

A)router
B)PSDN
C)optical fiber cable
D)access point

Question 10

A ________ connects computers at different geographic locations.

A)LAN
B)WAN
C)VPN
D)SOHO LAN

Question 11

Devices such as wireless mice and keyboards use ________ to connect to the computer.

A)NIC
B)broadband
C)cable
D)Bluetooth

Question 12

A ________ is used to provide seamless flow of data across networks.

A)layered protocol
B)point-to-point protocol
C)switch
D)UTP

Question 13

Which of the following is true of cable modems?

A)Cable modems provide high-speed data transmission using telephone cables.
B)Performance of cable modems is stable irrespective of the number of users sending and receiving data.
C)Cable modems generally use the same protocols as DSL modems.
D)The signals from cable modems do not interfere with TV signals.

Question 14

What is the protocol commonly used for wireless LAN?

A)IEEE 802.11n
B)EVDO
C)DSL
D)IEEE 802.3

Question 15

Which of the following statements about LAN protocols is true?

A)The access point uses both the 802.3 and 802.11 standards.
B)The IEEE 802.11 protocol is also called Ethernet.
C)The switch operates on the 802.11 standard.
D)WNICs operate on the 802.3 protocol and communicate with the switch.

Question 16

Narrowband lines typically have transmission speeds less than ________.

A)256 kbps
B)56 kbps
C)126 kbps
D)64 kbps

Question 17

Each device on the LAN has a hardware component called the ________ that connects the device's circuitry to the cable.

A)UTP
B)switch
C)NIC
D)POP

Question 18

Which of the following is true of an ISP?

A)An ISP converts digital data in the user's computer to an analog signal.
B)An ISP facilitates a one-way information transfer process between the user's computer and the Internet.
C)An ISP provides free access to the Internet.
D)An ISP serves as a user's gateway to the Internet.

Question 19

Which of the following protocols is commonly used by LAN?

A)IEEE 802.3
B)DSL
C)EVDO
D)WiMax

Question 20

The IEEE 802.3 protocol standard is also known as ________.

A)TCP/IP
B)Ethernet
C)Bluetooth
D)HTTP

Question 21

Which of the following is a component of the user tier?

A)computers that have browsers that request and process Web pages
B)computers that run Web servers and process application programs
C)computers that run a DBMS that processes SQL requests
D)computers that work to minimize customer delays in a facility called a Web farm

Question 22

A Local Area Network (LAN)would be used to connect computers located in Seattle and Philadelphia.

Question 23

In the three-tier architecture arrangement,what is the second tier?

A)Web tier
B)database tier
C)server tier
D)user tier

Question 24

________ is the most common language for defining the structure and layout of Web pages.

A)HTML
B)VPN
C)Flash
D)XML

Question 25

A ________ receives requests from users via the Web server,takes some action,and returns a response to the users via the Web server.

A)database server
B)commerce server
C)URL
D)Web farm

Question 26

A ________ must be used to convert a computer's digital data to an analog,or wavy,signal.

A)tunnel
B)switch
C)modem
D)router

Question 27

A SOHO LAN requires that a dozen or more computers and printers be connected.

Question 28

A(n)________ is a unique name that is affiliated with a public IP address.

A)tag
B)protocol
C)domain name
D)assigned name

Question 29

With a WAN,an organization can place communications lines wherever it wants because all lines reside on its premises.

Question 30

Which of the following is true of VPN?

A)VPN communications are secure even though they are transmitted over the public Internet.
B)One disadvantage of VPN is that it does not encrypt messages.
C)Remote access is difficult in case of VPN.
D)It is a virtual,private pathway over a public or shared network from the client to the server.

Question 31

The S in HTTPS stands for ________.

A)site
B)safety
C)speed
D)secure

Question 32

What is a VPN?

A)It is a markup language that fixes several HTML deficiencies and is commonly used for program-to-program interaction over the Web.
B)It is an add-on to browsers that was developed by Adobe and is useful for providing animation,movies,and other advanced graphics inside a browser.
C)It is the most common language for defining the structure and layout of Web pages.
D)It uses the Internet to create private point-to-point connections.

Question 33

Which of the following provides reliable internet transport?

A)HTTP
B)TCP
C)FTP
D)DSL

Question 34

The ________ is the Internet-based network of browsers and servers that process HTTP or HTTPS.

A)FTP
B)SMTP
C)Web
D)Data link

Question 35

What is an IP address?

A)It is a protocol that specifies the routing of the pieces of your data communication through the networks that comprise any internet (including the Internet).
B)It is a number that identifies a particular device.
C)It is a piece of a message that is handled by programs that implement IP.
D)It is a program that breaks your traffic up into pieces and sends each piece along its way.

Question 36

When an individual uses the Internet,but not the Web,he or she is using ________.

A)FTP
B)HTTP
C)SOAP
D)XUP

Question 37

Which of the following is true of Web servers?

A)They are not programs.
B)They run on a user tier computer.
C)They can manage items in a shopping cart.
D)They send and receive Web pages to and from clients.

Question 38

Which of the following means an address on the Internet?

A)FTP
B)DSL
C)URL
D)ISP

Question 39

One very common use of FTP is to ________.

A)maintain Web sites
B)transmit emails
C)format responses
D)implement protocol

Question 40

A protocol is a set of rules that two communicating devices follow.

Question 41

The IEEE 802.3 protocol is used for wired LAN connections.

Question 42

An access point is a special-purpose computer that receives and transmits wired traffic on the LAN.

Question 43

Wireless mice use Bluetooth to connect to the computer.

Question 44

Cable modems provide high-speed data transmission using phone lines.

Question 45

Each wired computer or printer on the LAN has a network interface card (NIC).

Question 46

Bluetooth is a protocol that can transmit data over long distances.

Question 47

Optical fiber cables carry light ray signals.

Question 48

The protocols used on the Internet are arranged according to a structure known as the TCP/IP Protocol architecture.

Question 49

Leased lines are also called PSDN.

Question 50

Routers convert digital data into analog signals.

Question 51

The most popular protocol for WAN is the IEEE 802.3 protocol.

Question 52

An HTTPS connection is a secure connection.

Question 53

An access name is a unique name that is affiliated with a public IP address.

Question 54

LAN connections cannot be made with optical fiber cables.

Question 55

Very few LAN connections are made using unshielded twisted pair (UTP)cable.

Question 56

Broadband lines have speeds less than 56 kbps.

Question 57

DSL operates on the same lines as voice telephones.

Question 58

Narrowband lines have speeds greater than 256 kbps.

Question 59

File Transfer Protocol is used for email transmissions.

Question 60

The TCP/IP Protocol architecture is a scheme of a single protocol type.

Question 61

What are cable modems?

Question 62

What is a domain name? What is the procedure to get a domain name?

Question 63

What is the IP Protocol architecture?

Question 64

What are the different tiers in the three-tier architecture?

Question 65

Hyperlinks are pointers to other Web pages.

Question 66

The user tier consists of computers,phones,and other devices.

Question 67

A tunnel is a virtual,private pathway over a public or shared network from the VPN client to the VPN server.

Question 68

Name some common application layer protocols.

Question 69

What is Bluetooth? What are its uses?

Question 70

Explain Transmission Control Protocol (TCP).

Question 71

How does a wireless NIC work?

Question 72

What is the difference between a LAN and a WAN? Give an example of how each one could be used in business.

Question 73

Differentiate between private and public IP addresses.

Question 74

What is the difference between a Web server and a commerce server?

Question 75

What is a VPN and how does it work?

Question 76

What are the three important functions of an ISP?

Question 77

A Virtual Private Network (VPN)is a type of LAN.

Question 78

The server tier consists of computers that run a DBMS that processes SQL requests to retrieve and store data.

Question 79

To ensure acceptable performance,commercial Web sites usually are supported by several or even many Web server computers in a facility called a Web farm.

Question 80

What is an NIC? Why is it important to a LAN?