Question 1

What is the protocol commonly used for wireless LAN?

Accepted Answer

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

Question 2

What are cable modems?

Accepted Answer

Cable modems provide high-speed data tra

Question 3

Narrowband lines typically have transmission speeds less than ________.

Accepted Answer

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

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

What is Bluetooth? What are its uses?

Accepted Answer

Bluetooth is a common wireless protocol.

Question 6

Differentiate between private and public IP addresses.

Accepted Answer

Public IP addresses identify a particula

Question 7

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

Accepted Answer

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

Question 8

How does a wireless NIC work?

Accepted Answer

The WNIC devices connect to an access po

Question 9

Leased lines are also called PSDN.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is true of cable modems?

Accepted Answer

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. 
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 11

What are the three important functions of an ISP?

Accepted Answer

An ISP has three important functions.Fir

Question 12

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

Accepted Answer

A local area network (LAN)connects compu

Question 13

Which of the following is true of DSL modems?

Accepted Answer

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. 
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.

Question 14

Which of the following is true of Web servers?

Accepted Answer

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. 
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 15

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

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

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

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

What is a VPN?

Accepted Answer

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. 
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 19

What is the IP Protocol architecture?

Accepted Answer

The protocols used on the Internet are a

Question 20

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

Accepted Answer

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

Exam 6: Data Communication and the Cloud

What is the protocol commonly used for wireless LAN?

What are cable modems?

Narrowband lines typically have transmission speeds less than ________.

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

What is Bluetooth? What are its uses?

Differentiate between private and public IP addresses.

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

How does a wireless NIC work?

Leased lines are also called PSDN.

Which of the following is true of cable modems?

What are the three important functions of an ISP?

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

Which of the following is true of DSL modems?

Which of the following is true of Web servers?

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

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

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

What is a VPN?

What is the IP Protocol architecture?

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

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