Tag: parts of computer

Questions Related to parts of computer

VOIP stands for ________________.

  1. Voice over IP

  2. Video over IP

  3. Viruses over IP

  4. Virtual over IP


Correct Option: A

In a ..................., a mobile station always communicates with just one base station. 

  1. Messaging hand off

  2. Hard hand off

  3. Soft hand off

  4. Roaming hand off


Correct Option: B
Explanation:

In a Hard hand off a mobile station always communicates with just one base station.

A hard handoff is a handoff technique used with cellular networks that requires the user's connection to be entirely broken with an existing base station before being switched to another base station. ... A hard handoff is also known as a hard handover or break-before-make handover.

 The handover or handoff process is of major importance within any cellular telecommunications network. It is necessary to ensure it can be performed reliably and without disruption to any calls.

SOft Handover:- When mobile ( in Call0 switches to a new sector/cell which is on the same frequency then it is called a soft handover. If the "new" sector is also from the same BTS then it is called a softer handover. UMTS networks omplements all types (Hard/Soft/Softer) of handovers.

Different approaches are proposed and applied in order to achieve better handoff service. The principal parameters used to evaluate handoff techniques are: forced termination probability and call blocking probability. ... Handoff (or handover) process is transferring an active call from one cell to another.

Which of the following is NOT a characteristic of E-mail?

  1. Low cost

  2. Record maintenance in database

  3. High speed

  4. Waste Reduction(writing paper)


Correct Option: B

Radio waves and microwaves are examples of _________ communication.

  1. Wired

  2. Guided

  3. Wireless

  4. Office


Correct Option: C

A wireless network is also known as a/an ________.

  1. Wi-Fi network

  2. Internet

  3. Intranet

  4. None of these


Correct Option: A

A special type of device which uses an ordinary telephone with a computer is?

  1. Light pen

  2. Mouse

  3. Acoustic couple

  4. Touch panel

  5. None of the above


Correct Option: C
Explanation:

A special type of device which uses an ordinary telephone with a computer is Acoustic couple

In telecommunications, an acoustic coupler is an interface device for coupling electrical signals by acoustical means—usually into and out of a telephone.

Ethernet modems that plug into the network card in the computer, and wireless modems that connect to a computer using a wireless LAN (WLAN). Some modems offer dual Ethernet and USB connection. There are also routers with integrated ADSL modem.

A TTY is a special device that lets people who are deaf, hard of hearing, or speech-impaired use the telephone to communicate, by allowing them to type messages back and forth to one another instead of talking and listening.

Which technology is more reliable?

  1. Mechanical

  2. Electro-Mechanical

  3. Electronic

  4. For reliability it does not matter. So all of above are reliable


Correct Option: D
Explanation:

For reliability it does not matter. So all of above are technology is more reliable.

Mechanical Technology. Nearly every product includes mechanical components that must be created by a mechanical designer. ... The mechanical designer of today requires knowledge in many areas including mechanical drafting, computer-aided drafting and design, machine shop, robotics and machine components.

A mechanical computer is built from mechanical components such as levers and gears, rather than electronic components. The most common examples are adding machines and mechanical counters, which use the turning of gears to increment output displays.

Computer Electronics Technology is an associate degree program that prepares you for a technical career in the computer field. You will learn to operate, install, configure, upgrade and maintain microcomputers, peripheral devices and network hardware.

Voice mail ____________________________________________.

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

  2. permits users to convere 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


Correct Option: C

A.................... is a computerized centre, that is responsible for connecting calls, recording call information and billing. 

  1. Base station

  2. Mobile switching centre

  3. Cell

  4. Mobile station


Correct Option: B
Explanation:

A  Mobile switching centre is a computerized centre, that is responsible for connecting calls, recording call information and billing.

A mobile switching center (MSC) is the centerpiece of a network switching subsystem (NSS). The MSC is mostly associated with communications switching functions, such as call set-up, release, and routing. The Mobile Switching Centre (MSC) is a telephone exchange that makes the connection between mobile users within the network, from mobile users to the public switched telephone network and from mobile users to other mobile networks.

BSC. The Base Station Controller (BSC) is in control of and supervises a number of Base Transceiver Stations (BTS). The BSC is responsible for the allocation of radio resources to a mobile call and for the handovers that are made between base stations under his control. Other handovers are under control of the MSC.

Base Transciever Station (BTS) The BTS is a telecoms infrastructure used to facilitate wireless communication between subscriber device and telecoms operator network. The subscriber device can be mobile phone, wireless internet devices while the operator network could be a GSM, CDMA or TDMA platform.

PTN stands for 

  1. Public Transport Network

  2. Private Transport Network

  3. Public Telephone Network

  4. Private Telephone Network


Correct Option: C
Explanation:

PTN stands for Public Telephone Network.

The public switched telephone network (PSTN) is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telephony operators, providing infrastructure and services for public telecommunication.

How does the Public Switched Telephone Network work? PSTN uses circuit switching to allow users to make landline telephone calls to one another. The call is placed after it is routed through multiple switches. These switches are found in a central office (CO) or in a wire center.

PSTN (public switched telephone network) is the world's collection of interconnected voice-oriented public telephone networks, both commercial and government-owned. It's also referred to as the Plain Old Telephone Service (POTS).