Understanding Computer Networks

What is a computer network?

• A computer network is a system of interconnected computers and devices that can communicate and share resources.

• A computer network is a collection of random devices without any communication.

• A computer network is a single computer that operates independently.

• A computer network is a type of software used for programming.

What are the different types of network topologies?

• Square

• Hexagon

• Star, Bus, Ring, Mesh, Tree, Hybrid

• Circle

Explain the purpose of the TCP/IP protocol.

• To encrypt data for secure transmission.

• To manage hardware resources in a computer system.

• To establish a physical connection between devices.

• The purpose of the TCP/IP protocol is to enable communication and data exchange over networks.

What is the role of a firewall in network security?

• The role of a firewall in network security is to monitor and control network traffic to protect against unauthorized access and threats.

• A firewall acts as a backup for network data.

• A firewall encrypts data for secure transmission.

• A firewall is used to increase internet speed.

How does a LAN differ from a WAN?

• A LAN is a type of WAN.

• A LAN is only used for wireless connections.

• A WAN connects devices in a small area, while a LAN connects devices over large distances.

• A LAN connects devices in a small area, while a WAN connects devices over large distances.

What is the function of an IP address?

• To identify and locate devices on a network.

• To store files on a remote server.

• To provide a unique username for online accounts.

• To encrypt data transmitted over the internet.

Describe the importance of encryption in network security.

• Encryption is only necessary for financial transactions.

• Encryption is essential for protecting sensitive data in transit, ensuring confidentiality, integrity, and authenticity in network security.

• Encryption is primarily used for data storage, not for data in transit.

• Encryption slows down network performance significantly.

How does the internet impact daily life?

• The internet decreases social interaction and communication.

• The internet limits access to information and resources.

• The internet has no effect on shopping and entertainment.

• The internet enhances communication, access to information, shopping, work, and entertainment in daily life.

What is the purpose of the HTTP protocol?

• To manage user authentication.

• To encrypt data during transmission.

• The purpose of the HTTP protocol is to facilitate the transfer of data over the web.

• To store data on the server.

What are common threats to network security?

• Firewall misconfigurations

• Regular software updates

• Malware, phishing, DoS attacks, man-in-the-middle attacks, insider threats.

• Strong password policies