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 261–280 of 291

Q261.The social networking platform Google+ (launched in 2011) was designed as a direct alternative to which site?

Easy
A Bing
B Facebook
C Amazon
D Flicker
Network Basics PPSC

Correct Answer: B

Google+ was developed by Google as a competitor to Facebook, structured around social 'Circles' and communities.

Q262.Which data communication network system is designed to operate within a single building, plant, or school campus?

Easy
A MAN
B LAN
C WAN
D All of these
Network Basics PPSC

Correct Answer: B

A LAN (Local Area Network) is a high-speed data network restricted to a small, localized geographical area like an office or building.

Q263.Which page layout orientation is best suited to fit the maximum number of columns side-by-side on a single sheet of paper for printing?

Easy
A Landscape
B Portrait
C Both A and B
D None of these
Network Basics PPSC

Correct Answer: A

Landscape orientation rotates the page horizontally (wider than it is tall), making it ideal for wide spreadsheets with many columns.

Q264.A pair of computer headphones is classified under which category of hardware devices?

Easy
A Input
B Storage
C Output
D Networking
Network Basics PPSC

Correct Answer: C

Headphones receive digital audio signals from the computer and output them as audible sound waves for the user's ears.

Q265.The term 'Cyber Warfare' generally encompasses which of the following technological actions?

Easy
A Destroying critical digital infrastructure
B Installing remote espionage spyware
C Using technology to execute offensive attacks against adversary networks
D All of these
Network Basics PPSC

Correct Answer: D

Cyber warfare is the use of digital attacks by one nation-state to disrupt, disable, or destroy the computer and information systems of another.

Q266.What is the smallest heading tag in Hypertext Markup Language (HTML)?

Easy
A H1
B H2
C H3
D H4
Network Basics PPSC

Correct Answer: D

In the standard HTML heading tag hierarchy, heading tags range from H1 to H6. In the provided list of options (H1, H2, H3, H4), H4 is the smallest heading tag.

Q267.Which of the following refers to the high-speed primary memory of your computer?

Easy
A DSL
B RAM
C LAN
D USB
Network Basics PPSC

Correct Answer: B

RAM (Random Access Memory) is the primary volatile memory of a computer system, used for holding active programs and data.

Q268.In Microsoft Windows, you can launch or start an application directly by typing its filename into which system command window?

Easy
A Log off
B Network place
C Recycle bin
D Run
Network Basics PPSC

Correct Answer: D

The Run dialog box (Windows + R) allows users to launch applications or execute files directly by typing their system executable names.

Q269.What does the networking term 'USL' stand for?

Easy
A Universal Source Locator
B Unified System Link
C Universal System Locator
D Unified Source Link
Network Basics PPSC

Correct Answer: A

In specific metadata and information networks, USL stands for Universal Source Locator.

Q270.What is the primary purpose of a 'Proxy Server' in a computer network?

Easy
A To manage TCP/IP connections
B To block unauthorized access to the network
C To cache frequently accessed web pages
D To route TCP/IP requests from clients to servers
Network Basics PPSC

Correct Answer: D

A proxy server acts as an intermediary, routing client requests (like HTTP or TCP/IP) to destination servers while hiding client details.

Q271.Networking hardware devices like hubs and switches are critical building blocks used to implement a ____?

Easy
A Network Protocol
B Network Topology
C Network Security
D Network Storage
Network Basics PPSC

Correct Answer: B

Hubs, switches, and routers are physical nodes used to arrange and connect devices in a specific Network Topology (like Star or Mesh).

Q272.What is the name given to the sequential, logical sets of instructions written in a language that run the computer hardware?

Easy
A CPUs
B Hardware
C Programs
D Documents
Network Basics PPSC

Correct Answer: C

Programs (software) are step-by-step instructions that instruct computer processors how to perform specific tasks.

Q273.PNG (Portable Network Graphics) is a standard file format representing which type of computer graphics?

Easy
A Vector graphics
B Raster graphics or bitmaps
C Color graphics
D Negative films
Network Basics PPSC

Correct Answer: B

PNG is a raster graphics file format that represents images using a grid-map of pixels (bitmaps), supporting lossless compression.

Q274.Which local area network (LAN) media access control method resolves bandwidth sharing and connections by detecting collisions on the physical wire?

Easy
A Token Passing
B Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
C Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)
D Time Division Multiple Access (TDMA)
Network Basics PPSC

Correct Answer: B

CSMA/CD was the classic media access method for Ethernet, where devices listen for quiet lines and abort transmission if a collision is detected.

Q275.What is the primary purpose of Random Access Memory (RAM) in a computer system?

Easy
A To permanently store data
B To execute software applications
C To read and write data temporarily
D To manage network connections
Network Basics PPSC

Correct Answer: C

RAM is a high-speed, volatile primary memory used by the operating system and CPU to read and write active program data temporarily.

Q276.A network in which data is divided into blocks and routed dynamically over transmission lines is called a ______ network.

Easy
A Circuit Switching
B Packet Switching
C Message Switching
D Frame Switching
Network Basics PPSC

Correct Answer: B

In packet-switching networks, data is broken down into small, manageable packets that travel independently through network routes to their destination.

Q277.Before computer hardware can process any high-level instructions, they must be translated into which language?

Easy
A Assembly Language
B High-Level Language
C Machine Language
D Scripting Language
Network Basics PPSC

Correct Answer: C

The CPU can only execute instructions that are in native machine language (binary 0s and 1s).

Q278.To which class of IPv4 addresses does the IP address 198.168.10.0 belong?

Easy
A Class A
B Class B
C Class C
D Class D
Network Basics PPSC

Correct Answer: C

Class C IPv4 addresses fall in the range of 192.0.0.0 to 223.255.255.255.

Q279.In rapid software prototyping, which programming tools are most commonly used to quickly build mockups?

Easy
A BASIC
B COBOL
C Fourth-Generation Languages (4GLs)
D Assemblers
Network Basics PPSC

Correct Answer: C

4GLs (Fourth-Generation Languages) are highly visual, database-oriented, and high-level, making them perfect for generating rapid prototypes.

Q280.When installing PCI Network Interface Cards (NICs), how can you check or configure the IRQ availability?

Easy
A By adjusting DIP switches
B By modifying CONFIG.SYS
C By checking Motherboard BIOS/UEFI settings
D By physically checking Jumper settings
Network Basics PPSC

Correct Answer: C

For PCI and modern Plug-and-Play devices, IRQ assignments and hardware resources are managed dynamically by the system BIOS/UEFI.