Y10 Networks Intro Homework

What is a computer network?

• A single computer used for personal tasks

• A group of interconnected computers/devices

• A method of connecting to the internet wirelessly

• A device that is not connected to a network

Answer explanation

A computer network is defined as a group of interconnected computers/devices that can communicate and share resources. This distinguishes it from a single computer or devices that are not connected.

Which of the following is an advantage of using networks?

• Difficulty in management

• Spread of malware

• File sharing among users

• Increased cost due to additional equipment

Answer explanation

An advantage of using networks is file sharing among users, which allows for easy access and collaboration on documents and resources. The other options highlight disadvantages, not benefits.

What is a stand-alone device?

• A device that connects wirelessly to the internet

• A device that is not connected to a network

• A device used for file sharing

• A device connected to multiple networks

Answer explanation

A stand-alone device is defined as one that operates independently and is not connected to any network. This distinguishes it from devices that require network connectivity for functionality.

What is the purpose of encryption in networks?

• To reduce network costs

• To increase network speed

• To ensure secure message transmission

• To connect devices wirelessly

Answer explanation

The purpose of encryption in networks is to ensure secure message transmission. It protects data from unauthorized access, maintaining confidentiality and integrity during communication.

Which of the following is a disadvantage of networks?

• Centralised maintenance and updates

• Roaming access

• User monitoring

• Spread of malware

Answer explanation

The spread of malware is a significant disadvantage of networks, as it can easily propagate across connected devices, compromising security. Other options like centralized maintenance and user monitoring are generally advantages.

What is a firewall?

• A device used for file sharing

• A method of wireless communication

• A type of hardware that connects devices

• A type of software or hardware that stops unauthorised access

Answer explanation

A firewall is a type of software or hardware designed to prevent unauthorized access to or from a private network, making it essential for network security.

What is roaming access in a network?

• Applying software updates

• Monitoring user activity

• Accessing files from any computer on the network

• Sharing hardware like printers

Answer explanation

Roaming access allows users to access files from any computer on the network, enabling flexibility and convenience in file management. This is essential for users who need to work from different locations within the network.

What is the role of network managers in large networks?

• To reduce network speed

• To apply software updates and manage security

• To increase network costs

• To connect devices wirelessly

Answer explanation

Network managers are responsible for applying software updates and managing security in large networks, ensuring that the network operates efficiently and securely. This is crucial for maintaining performance and protecting against threats.

What is the main function of a domain name server (DNS)?

• To monitor user activity

• To translate domain names into IP addresses

• To host websites

• To connect devices wirelessly

Answer explanation

The main function of a domain name server (DNS) is to translate domain names into IP addresses, allowing users to access websites using easy-to-remember names instead of numerical addresses.

Which of the following is a benefit of centralised security in networks?

• Protection of user files from risks

• Easier spread of malware

• Difficulty in management

• Increased cost

Answer explanation

Centralised security helps protect user files from risks by implementing consistent security measures across the network, reducing vulnerabilities and enhancing overall data protection.