4.2 Network issues and communications

What is the main purpose of a firewall in a computer network?

• To increase the speed of data transfer in the network

• To control incoming and outgoing network traffic

• To automatically update software on all devices

• To provide physical security to the network hardware

What is the process of converting information into a form that is meaningless to anyone except holders of a 'key'?

• Phishing

• Spyware

• Encryption

• Firewall

What is the main advantage of using email over physical faxing?

• Documents can be signed and legally accepted

• Physical copies of documents can be sent and automatically printed

• Emails are password protected for security

• Emails can only be received during office hours

What is a computer virus and how can it affect a computer system?

• A piece of programming code that can replicate and cause the computer to crash

• A type of software that helps in data encryption

• A tool used for secure online transactions

• A piece of hardware that enhances computer performance

What is the main disadvantage of video conferencing compared to face-to-face meetings?

• No need to travel for meetings

• Instant messaging feature available

• Ability to share content such as images and videos

• Lack of personal contact and understanding of tone

What is the purpose of the Data Protection Act?

• To allow free access to all data on the internet

• To protect the rights of individuals regarding their data

• To restrict the use of encryption in data transfer

• To promote the sharing of personal information online

What is the main advantage of using biometric methods for authentication?

• Biometric data can be easily copied and replicated

• Biometric methods are cheaper than traditional password systems

• Biometric methods require frequent password changes

• Biometric data is unique and cannot be stolen or guessed

What is the main purpose of using Two Factor Authentication?

• To allow access to the network without any authentication

• To automatically log users out after a certain period of inactivity

• To require users to enter a password only once

• To provide an additional layer of security by requiring a code in addition to a password

What is the main disadvantage of using physical faxing compared to electronic faxing?

• Physical faxes can be intercepted by anyone

• Electronic faxes can only be sent during office hours

• Physical faxes are more secure and legally accepted

• Electronic faxes require additional hardware and software

What is the primary function of a proxy server in a network?

• To automatically update software on all connected devices

• To provide a direct connection between two devices

• To monitor and control incoming and outgoing data traffic

• To increase the speed of data transfer within the network