TELECOMMUNICATIONS SYSTEMS
TYPES OF NETWORKS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Changing data so that it can no longer be understood without a decryption(decode) key
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someone at your own level
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he “peers” are computer systems which are connected to each other via the Internet. Files can be shared directly between systems on the network without the need of a central server.
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a powerful computer which provides services required by any of the clients (computers on the network)
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Detailed explanation-1: -Symmetric, or secret key encryption, uses a single key for both encryption and decryption. Symmetric key encryption is used for encrypting large amounts of data efficiently. 256-bit AES keys are symmetric keys. Asymmetric, or public/private encryption, uses a pair of keys.
Detailed explanation-2: -In theory, encryption should be unbreakable, as long as the key used to encrypt the information is kept secret. However, in practice, encryption can be broken if someone is able to find a weakness in the encryption algorithm, or if they are able to obtain the key through some other means.
Detailed explanation-3: -In asymmetric, or public key, encryption, there are two keys: one key is used for encryption, and a different key is used for decryption.
Detailed explanation-4: -Encrypted data is commonly referred to as ciphertext, while unencrypted data is called plaintext.