
Network Security Topic 8
Authored by Fathin Aziz
Computers
University

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary goal of cryptography?
To keep secrets secret
To prevent data modification
To authenticate users
To ensure data availability
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of attack involves trying all possible keys to decrypt a message?
Man-in-the-middle attack
Replay attack
Brute-force attack
Ciphertext attack
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which cryptographic primitive uses a single key for both encryption and decryption?
Asymmetric encryption
Hash function
Digital signature
Symmetric encryption
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the term for the unreadable form of data after encryption?
Plaintext
Ciphertext
Key
Hash
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following describes a hash function?
It requires a secret key for decryption.
It generates a fixed-size output from variable-size input.
It is a type of symmetric encryption.
It encrypts data using a public key.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which cipher is an example of a monoalphabetic substitution cipher?
AES encryption
RSA algorithm
Caesar cipher
Vigenere cipher
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main purpose of digital signatures?
To encrypt data
To provide non-repudiation
To ensure data availability
To generate random keys
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