<span>A key is data called that is input into a cryptographic algorithm for the purpose of producing encrypted data. There are two types of cryptography, the public key and the private key. The public key uses public keys to encrypt data and private key uses private key to decrypt data. They are produced by a group of algorithms. </span>
Answer:
Answer is option (a) It includes data that has changed since the last full backup.
Explanation:
Differential Backup is a method used in Database Management Systems (DBMS) in which it includes the data (copies of all the files) that has changed (either created or updated or altered) since the last full backup. If it is a partial backup instead of full backup, then it is not a differential backup method as many files might have changed. Option (b) is false as the backup has to be a full backup not an incremental backup. Option (c) is false as the backup has to be a full backup ( not just a backup ), Option (d) is false as only the files that are changed is stored not the whole database since a full backup.
Answer:
A router connects multiple computers to the Internet through a single connection. The router manages the flow of data, delivering the right information to each computer on the network. Routers may also be used to connect multiple networks. A managed router is a router that is owned and managed by a third-party.
