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MCQs — Computer Systems

Practice questions for Computer Science.

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Question 281

In a client-server network, a client is:

A. The computer that stores all the data for others

B. The cable connecting the network

C. The electricity supply

D. A computer that requests services from the server

Question 282

A student opens a website in a browser. Which statement correctly describes the roles?

A. The student's computer is the client and the web server provides the page

B. The web server is the client and the student's computer is the server

C. Both are clients

D. Neither is a computer

Question 283

The main file server in a company network fails. What is the most likely result?

A. Every client becomes a server automatically

B. Clients cannot access the files and services that the server provides

C. The clients' monitors stop working

D. All data is created again automatically

Question 284

In a peer-to-peer network:

A. One powerful server controls everything

B. Only one computer is allowed

C. Each computer can act as both client and server

D. No computer can share files

Question 285

Which is an advantage of a peer-to-peer network?

A. It needs a very expensive dedicated server

B. It has the best security for large companies

C. It needs an administrator for every user

D. It is easy and cheap to set up for a few computers

Question 286

Three friends want to share files between their laptops at home without buying a server. Which network is most suitable?

A. Peer-to-peer

B. Client-server

C. WAN

D. Mainframe network

Question 287

Why is peer-to-peer not suitable for a company with 500 employees?

A. Because it cannot connect any computers

B. Because it is difficult to manage security and backups without central control

C. Because it needs no cables

D. Because it uses too little memory

Question 288

LAN stands for:

A. Large Area Network

B. Long Access Node

C. Local Area Network

D. Linked Array Network

Question 289

A network that covers a whole city is called a:

A. LAN

B. PAN

C. VPN

D. MAN

Question 290

Which type of network covers the largest geographical area?

A. WAN

B. LAN

C. MAN

D. Home network

Question 291

What is a VPN used for?

A. To print documents faster

B. To create a secure, private connection over a public network such as the internet

C. To increase the size of RAM

D. To scan photographs

Question 292

A school connects all the computers in its building to share printers. Which type of network is this?

A. WAN

B. MAN

C. LAN

D. VPN

Question 293

An employee working from home needs to access company files securely over the internet. Which technology is best?

A. LAN cable only

B. Punched cards

C. Stand-alone computer

D. VPN

Question 294

A bank links its branches in different countries into one network. Which type of network is it?

A. WAN

B. LAN

C. MAN

D. Peer-to-peer only

Question 295

In a bus topology, all devices are connected to:

A. A central hub only

B. A single main cable called the backbone

C. Each other with many cables

D. A closed loop of two neighbours only

Question 296

In a star topology, all devices are connected to a:

A. Single backbone cable

B. Ring of cables

C. Central hub or switch

D. Printer

Question 297

In a ring topology, each device is connected to:

A. Every other device

B. One central computer

C. No other device

D. Exactly two neighbouring devices, forming a closed loop

Question 298

When every device in a mesh topology is directly connected to the other devices, what is the main drawback?

A. It needs many cables, making it costly

B. It can connect only two devices

C. It uses no cables at all

D. It cannot send any data

Question 299

In a star network, the central switch stops working. What happens?

A. Only one device is affected

B. All devices lose their connection through it

C. Data passes through the backbone

D. The devices become servers automatically

Question 300

A hospital needs a network in which data can still reach its destination even if one cable fails. Which topology is best?

A. Bus

B. Star

C. Mesh

D. Ring

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