Data Communication and Networking Questions

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481.

Which network protocol is used to send Email?

A

FTP

B

SSH

C

POP3

D

SMTP

E

None of these

Correct Answer: D

SMTP (Simple Mail Transfer Protocol) is a TCP/IP protocol used in sending and receiving e-mail.

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482.

Which is the device that converts computer output into a form that can be transmitted over a telephone line?

A

Teleport

B

Multiplexer

C

Concentrator

D

Modem

Correct Answer: D

A modem (modulator?demodulator) is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information.

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483.

Which of the following items is not used in Local Area Networks (LANs)

A

Computers

B

Modem

C

Printer

D

Cable

Correct Answer: B

A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server.

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484.

DNS in internet technology stands for

A

Distributed Name System

B

Data Name System

C

Dynamic Name System

D

Domain Name System

E

None of the above

Correct Answer: D

The domain name system (DNS) is the way that internet domain names are located and translated into internet protocol (IP) addresses. The domain name system maps the name people use to locate a website to the IP address that a computer uses to locate a website. For example, if someone types example.com into a web browser, a server behind the scenes will map that name to the IP address 93.184.216.34

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485.

A technique used by codes to convert an analog signal into a digital bit stream is known as

A

Digital Signal Generator

B

Pulse Code Modulation

C

Pulse Signal Modulation

D

None of these

Correct Answer: B

None.

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486.

A program that converts computer data into some code system other than the normal one is known as

A

Emulator

B

Encoder

C

Decoder

D

Trigger

E

None of these

Correct Answer: B

None.

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487.

LAN stands for?

A

Last Affordable Network

B

Leased Area Network

C

Latency Around Netwok

D

Local Area Network

E

None of these

Correct Answer: D

A local area network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.

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488.

What language does a browser typically interpret to display information from the World Wide Web?

A

Machine Code

B

Assembly Language

C

HTML

D

C++

E

None of these

Correct Answer: C

Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS) and JavaScript, it forms a triad of cornerstone technologies for the World Wide Web.

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489.

A wireless technology built in electronic gadgets used for exchanging data over short distances is ______

A

USB

B

Bluetooth

C

Modem

D

Wifi

E

None of these

Correct Answer: B

Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs). Invented by Dutch electrical engineer Jaap Haartsen, working for telecom vendor Ericsson in 1994

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490.

Buying and selling the products over electronic systems like internet is called _______

A

Online Shopping

B

Net Banking

C

E-Commerce

D

Dgital Marketing

E

None of these

Correct Answer: C

E-commerce is the activity of buying or selling of products on online services or over the Internet. Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems.

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