Computer Systems - Lesson 5 - Client-Server Model

What is the purpose of the Client-Server model in computer networks?

• To enhance the speed of data transmission

• To create a secure network connection

• To enable communication between two computers

• To allow multiple clients to share information

Answer explanation

The purpose of the Client-Server model in computer networks is to enable communication between two computers.

Which communication protocol is commonly used for web browsers to interact with web servers?

• FTP

• TCP

• HTTP

• SMTP

Answer explanation

HTTP is commonly used for web browsers to interact with web servers, making it the correct choice for this question.

What do URLs stand for in the context of web addresses?

• Universal Resource Links

• Unified Resource Listings

• Uniform Resource Locators

• Unique Resource Locations

Answer explanation

URLs stand for Uniform Resource Locators, which are used to specify addresses on the World Wide Web.

What is the main difference between HTTP and HTTPS?

• HTTPS is an outdated protocol

• HTTP is used for email communication

• HTTP is faster than HTTPS

• HTTPS is used for secure communication

Answer explanation

The main difference between HTTP and HTTPS is that HTTPS is used for secure communication, providing encryption and authentication to ensure data security.

Which hardware component is responsible for connecting different networks together?

• Gateways

• Routers

• Switches

• Repeaters

Answer explanation

Gateways are responsible for connecting different networks together by translating data between different network architectures or protocols.

What is the purpose of the DNS (Domain Name System) in computer networks?

• To convert domain names to IP addresses

• To encrypt data transmission

• To block access to certain websites

• To compress data for faster transfer

Answer explanation

The purpose of the DNS in computer networks is to convert domain names to IP addresses, allowing users to access websites using human-readable names instead of numerical IP addresses.

What is the function of a firewall in network security?

• To amplify network signals

• To prevent unauthorized access to or from a private network

• To increase internet speed

• To store website data

Answer explanation

A firewall's function in network security is to prevent unauthorized access to or from a private network, making it the correct choice among the options provided.

What is the role of an IP address in computer networking?

• To identify a specific website

• To determine the location of a computer

• To establish a secure connection

• To manage network traffic

Answer explanation

The role of an IP address in computer networking is to determine the location of a computer. It helps in identifying where a device is located on a network.