Computer Knowledge

Computer Networks

2,095 Questions

Computer networks form the backbone of digital communication, connecting multiple devices to share data and resources. This area covers network architectures, transmission media, modems, and topologies like LAN. These concepts are crucial for computer knowledge sections in banking and government exams.

Network topologiesModulation and demodulationNetwork addressingFiber optic cablesWireless infrastructure

Computer Networks Questions

Multiple choice wireless connections parts of computer physics

Which of the following is a multiple access method in which one channel carries all transmission simultaneously.

  1. CDMA

  2. Token ring

  3. CD

  4. Congestion
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

CDMA is a multiple access method in which one channel carries all transmission simultaneously.

FDMA versus TDMA versus CDMA. This page on FDMA versus TDMA versus CDMA provides difference between FDMA,TDMA and CDMA technologies. ... FDMA- Frequency Division Multiple Access, here entire band of frequencies is divided into multiple RF channels/carriers. Each carrier is allocated to different users.

U.S. Narrowband Spread Spectrum (IS-95): CDMA/FDD. 4) Space Division Multiple access (SDMA) FDMA,TDMA and CDMA are the three major multiple access techniques that are used to share the available bandwidth in a wireless communication system.

Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication channel.

Multiple choice wireless connections parts of computer physics

Voice mail ________________________.

  1. Is the exchange of text messages and computer files transmitted via a communications network such as a local area network or the Internet

  2. Permits users to converse in real time with each other via the computer while connected to the Internet

  3. Functions much like an answering machine, allowing callers to leave a voice message for the called party

  4. Involves using video and computer technology to conduct a meeting between participants at geographically separate locations

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The word FIP stands for File Translate Protocol.

A voicemail system (also known as voice message or voice bank) is a computer-based system that allows users and subscribers to exchange personal voice messages; to select and deliver voice information; and to process transactions relating to individuals, organizations, products and services, using an ordinary telephone. The term is also used more broadly to denote any system of conveying a stored telecommunications voice messages, including using an answering machine. Most cell phone services offer voice-mail as a basic feature

Voice mail offers many communications advantages over answering machines, including the ability for users to check their messages remotely. ... The machine replays an analog or digital recording of a message, to which the user can listen by pressing a button.

Multiple choice wireless connections parts of computer physics

__________ allows wireless mobile devices to access the Internet and its services such as the Web and e-mail.

  1. TCP/IP

  2. Ethernet

  3. WAP

  4. Token ring

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

WAP allows wireless mobile devices to access the Internet and its services such as the Web and e-mail.

Wireless Application Protocol (WAP) is a technical standard for accessing information over a mobile wireless network. A WAP browser is a web browser for mobile devices such as mobile phones that uses the protocol. Introduced with much hype in 1999, WAP achieved some popularity in the early 2000s, but by the 2010s it had been largely superseded by more modern standards. Most modern handset internet browsers now fully support HTML, so they do not need to use WAP markup for web page compatibility, and therefore, most are no longer able to render and display pages written in WML, WAP's markup language.

Before the introduction of WAP, mobile service providers had limited opportunities to offer interactive data services, but needed interactivity to support Internet and Web applications such as email, stock prices, news and sports headlines. The Japanese i-mode system offered another major competing wireless data protocol.

Multiple choice wireless connections parts of computer physics

Mobile computers and Personal Digital Assistants (PDAs) are the examples of-

  1. Radio broadcasting

  2. Wireless Network

  3. Geosynchronous

  4. LAN
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mobile computers and personal digital assistants (PDAs) are the examples of wireless network.

Personal digital assistant:-

Personal digital assistant is a term for a small, mobile, handheld device that provides computing and information storage and retrieval capabilities for personal or business use, often for keeping schedules, calendars and address book information handy.

Mobile computers:-

Mobile computing is human computer interaction by which a computer is expected to be transported during normal usage, which allows for transmission of data, voice and video.

Wireless network:-

A wireless network is a computer network that uses wireless data connections between network nodes.

 

Multiple choice wireless connections parts of computer physics

In recent years ...............has been deployed to give IP connectivity to GSM users.

  1. LANs (Local Area Network)

  2. ATM (Asynchronous Transfer Mode)

  3. GPRs (General Packet Radio Service)

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In recent years general packet radio service (GPRS) has been deployed to give IP connectivity to GSM users.

General packet radio services (GPRS) is a packet-based wireless communication service that promises data rates from 56 up to 114 Kbps and continuous connection to the internet for mobile phone and computer users. The higher data rates allow users to take part in video conferences and interact with multimedia Web sites and similar applications using mobile handheld devices as well as notebook computers.

General Packet Radio Service (GPRS) is a packet oriented mobile data standard on the 2G and 3G cellular communication network's global system for mobile communications(GSM).


Multiple choice wireless connections parts of computer physics

A transmission in which receiver receives the data simultaneously as it is relayed is called

  1. Video-conferencing

  2. Online transmission

  3. Real-time transmission

  4. Offline transmission
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A transmission in which receiver receives the data simultaneously as it is relayed is called Real-time transmission.

Real Time Transmission:- When you are sending a fax, the machine will scan the document into the memory before sending it. Sometimes, we may want to send an important document immediately, without waiting for memory transmission.

Real-time communications (RTC) is any mode of telecommunications in which all users can exchange information instantly or with negligible latency.


Multiple choice classification of computer introduction to the information age physics

In a network, the computer that stores the files and process the data is named as ____________.

  1. Server

  2. Terminal

  3. Modem

  4. All of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The function of a computer server is to store, retrieve and send computer files and data to other computers on a network.

For example, a user may set up a server to control access to a network, send/receive e-mail, manage print jobs, or host a website. 
Some server types- Web Server, Mail Server, etc.

Multiple choice classification of computer introduction to the information age physics

Servers are computers that provide resources to other computers connected to a _________.

  1. Mainframe

  2. Network

  3. Supercomputer

  4. Client

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Servers are computers that provide resources to other computers connected to a Network.

A network server is a computer system, which is used as the central repository of data and various programs that are shared by users in a network. If you have a computer that you're no longer using due to its slow speed, you can turn it into a network server for other computers in your household.

In computing, a server is a computer program or a device that provides functionality for other programs or devices, called "clients". This architecture is called the client–server model, and a single overall computation is distributed across multiple processes or devices.

Multiple choice organization of commerce and management emerging trends in business definition, scope and benefits of e-business emerging service business in india emerging modes of services

Network infrastructure is ________________.

  1. Web

  2. Internet

  3. software

  4. Email
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Network infrastructure is Internet as internet facility can only be attained with the help of network. Internet facility can only be used by an individual if the area in which he is residing has a good internet connection.