Computer Networks

291 questions available

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All Network Basics 277 LAN WAN MAN PAN Wi-Fi 1 Bluetooth Network Devices 2 IP Address 5 Basic Networking Terms 6
Showing 181–200 of 291

Q181.Which of the following is the correct definition of Computer?

Easy
A All of these
B Computer understands only binary language which is written in the form of 0s & 1s
C Computer is a programmable electronic device that stores, retrieves, and processes the data
D Computer is a machine or device that can be programmed to perform arithmetical or logic operation
Network Basics PPSC

Correct Answer: A

A computer is a programmable device that processes data, runs in binary, and performs mathematical/logical tasks.

Q182.Device to connect computer to network?

Easy
A Router
B Switch
C Modem
D None of these
Network Basics PPSC

Correct Answer: A

A router connects local computer networks to other networks or the internet.

Q183.Which device intelligently transmits messages in a network?

Easy
A Router
B Switch
C NIC
D None of these
Network Basics PPSC

Correct Answer: A

A router intelligently directs and routes data packets between different networks based on IP addresses.

Q184.WAN stands for__________

Easy
A Wide area network
B World area network
C Wide average network
D None of these
Network Basics PPSC

Correct Answer: A

WAN stands for Wide Area Network, which spans a large global or geographic area.

Q185.What is used to transmit digital data over telephone lines?

Easy
A Network card
B Sound Card
C Graphic card
D Modem
Network Basics PPSC

Correct Answer: D

A modem (modulator-demodulator) is used to transmit digital data over analog telephone lines by converting digital signals into analog audio tones and vice-versa.

Q186.What is used in a computer to protect a networked server from damage by those who log in to it?

Easy
A Gateway
B Flow Control
C Antivirus
D Firewall
Network Basics PPSC

Correct Answer: D

A firewall protects networked servers by monitoring and filtering incoming and outgoing network traffic based on rules.

Q187.What does NVR stand for?

Easy
A Network Video Recorder
B National Video Receiver
C New Visual Radar
D None of these
Network Basics PPSC

Correct Answer: A

NVR stands for Network Video Recorder, which digitally records and stores video streams from IP security cameras.

Q188.The speed of primary Ethernet is ______?

Easy
A 10 Mbps
B 100 Mbps
C 1 Gbps
D None of these
Basic Networking Terms PPSC

Correct Answer: B

Primary Ethernet typically refers to Fast Ethernet which operates at a standard speed of 100 Mbps.

Q189.An unwanted signal that mixes up with the original signal is called ______?

Easy
A Amplification
B Attenuation
C Noise
D None of these
Network Basics PPSC

Correct Answer: C

Noise is any random, unwanted electrical signal or disturbance that mixes with and degrades the quality of the original transmission signal.

Q190.Which of the following is a valid output statement in C language?

Easy
A display("Hello");
B output("Hello");
C print("Hello");
D printf("Hello");
Network Basics PPSC

Correct Answer: D

The standard output library function in C to write formatted text to the screen is printf(), which is declared in the <stdio.h> header file.

Q191.An example of non-numerical data is _____?

Easy
A Bank balance
B Roll number
C Address
D None of these
Network Basics PPSC

Correct Answer: C

An address contains letters, characters, and spaces, making it non-numerical (alphanumeric) data, unlike balances or ID numbers.

Q192.The four numbers in an IP address is called?

Easy
A Octal
B Octets
C Bytes
D None of these
Network Basics PPSC

Correct Answer: B

In IPv4, the address consists of four numbers separated by dots (e.g., 192.168.1.1). Each number is an 8-bit block called an 'octet'.

Q193.If all the Network components are connected to the same cable, then the certain topology is called ______?

Easy
A Mesh
B Bus
C Ring
D None of these
Network Basics PPSC

Correct Answer: B

In a Bus topology, all network nodes are connected to a single shared central communication cable (the backbone or bus).

Q194.Which of the following leads users from multiple sources to a single link or destination?

Easy
A Home page
B Blog page
C Landing page
D Contact page
Network Basics PPSC

Correct Answer: C

A landing page is a single, standalone web page designed to receive traffic from multiple promotional sources and guide them to a single destination or call-to-action.

Q195.What is photogrammetry in the context of surveying?

Easy
A A technique that uses satellites to measure land elevations
B A technique that uses photographs to make measurements and create maps and 3D models
C A process of manually drawing topographic maps
D A GPS-based method for calculating distances
Network Basics PPSC

Correct Answer: B

Photogrammetry is the science and technology of obtaining precise measurements, maps, and 3D models of physical objects and terrains through the analysis of photographs.

Q196.Which of the following leads to a single link between the host and the destination in a network?

Easy
A Point-to-point connection
B Broadcast connection
C Multicast connection
D Anycast connection
Network Basics PPSC

Correct Answer: A

A point-to-point connection provides a dedicated, direct physical or logical link between exactly two network nodes.

Q197.In government communication, a summary is used to ______?

Easy
A Request travel allowance
B Provide financial assistance
C Present essential facts and seek approval
D None of these
Network Basics PPSC

Correct Answer: C

A summary for decision-making concisely outlines key facts, background context, and alternative courses of action to seek official approval from higher-ups.

Q198.The first social networking site was ______?

Easy
A Six Degrees
B Facebook
C YouTube
D None of these
Network Basics PPSC

Correct Answer: A

Six Degrees (1997) is historically recognized as the first true social networking website, allowing users to build profiles and add friends.

Q199.The very first step of a systematic process of problem solving is ______?

Easy
A Planning
B Solution
C Problem Analysis
D Problem Identification
Network Basics PPSC

Correct Answer: D

A systematic problem-solving workflow always starts with recognizing and defining the issue clearly (Problem Identification).

Q200.You want to add audio video file in an HTML document using the tag _____?

Easy
A <audio>
B <video>
C <embed>
D None of these
Network Basics PPSC

Correct Answer: C

The <embed> tag is used in HTML to define a container for an external resource or interactive multimedia content (like audio or video plugins).