Fundamentals Flashcards

What is the difference between a LAN and a WAN?

Answer: LAN covers a small area; WAN covers a large geographic area

A LAN (Local Area Network) covers a small area like a home or office, while a WAN (Wide Area Network) spans large geographic areas.

Which of the following is an example of biometric authentication?

Answer: Scanning a fingerprint

Fingerprint scanning is biometric authentication because it uses unique physical characteristics of the user to verify identity.

What is the purpose of data encryption?

Answer: To convert data into an unreadable format to protect it

Data encryption converts information into an unreadable format using algorithms, so only authorized parties with a decryption key can access it.

What does 'bandwidth' refer to in networking?

Answer: The maximum data transfer rate of a network connection

Bandwidth refers to the maximum rate at which data can be transferred over a network connection, typically measured in Mbps or Gbps.

Which programming concept allows a function to call itself?

Answer: Recursion

Recursion is a programming technique where a function calls itself to solve smaller instances of the same problem.

What is a firewall's primary purpose in network security?

Answer: Monitor and control incoming and outgoing network traffic

A firewall monitors and controls network traffic based on security rules to protect a network from unauthorized access.

Which of the following best describes 'open source' licensing?

Answer: Software whose source code is publicly available for use and modification

Open source licensing allows the source code to be publicly viewed, modified, and distributed under specific license terms.