The keys used in cryptography are

• secret key

• private key

• public key

• All of them

Cryptography, a word with Greek origins, means

• corrupting data

• secret writing

• open writing

• closed writing

A transposition cipher reorders (permutes) symbols in a

• block of packets

• block of slots

• block of signals

• block of symbols

Network Security provides authentication and access control for resources.

• TRUE

• FALSE

• may be true

• may be false

Which is not an objective of network security?

• identification

• authentication

• access control

• lock

The process of verifying the identity of a user.

• authentication

• identification

• validation

• verification

Which of these is a part of network identification?

• user id

• password

• otp

• fingerprint

The process of transforming plain text into unreadable text.

• decryption

• encryption

• network security

• information hiding

An algorithm used in encryption is referred to as cipher.

• TRUE,

• FALSE

• may be true

• may be false

A process of making the encrypted text readable again.

• decryption

• encryption

• network security

• information hiding