Paper 1 Predictions Flashcards
Difference between IP address and MAC address:
An IP address is assigned by a network and can change. A MAC address is hard-coded into a device’s hardware and doesn’t change.
Role of proxy servers preferably and firewall:
Proxy server acts as an Intermediary between the user and the internet to filter requests, improve security and cache data. A firewall monitors and blocks unauthorized access to or from a network.
How does packet switching work?
Data is split into small units of data called packets. Each packet may take different routes to their destination, a network component called a router scans the packet for the destination address and sends it there. Packets are reassembled correctly at the destination by the use of the packet number.
Advantages and disadvantages of transmission media
Fiber optic: very fast, long distance, resilient to interference. Expensive.
Copper: cheap and easy to install. Limited distance, slower.
Wireless: no cables needed, portable. Vulnerable to interference and slower.
Features of antimalware:
Detects, quarantines and removes malware. Scans files and monitors system behavior.
How does asymmetric encryption work?
Data is encrypted using a public key and can only be decrypted by the matching private key. Ensures secure transmission even over insecure transmission.
Authentication methods:
Strong passwords, something only the user knows. Biometric passwords, fingerprints, facial recognition. Two step verification, combines something you know (password) with something you have (computer)
