Computer Security Quiz

What is the primary goal of computer security?

• To reduce hardware costs

• To create user-friendly interfaces

• To increase the speed of data transmission

• To ensure the integrity, availability, and confidentiality of resources

What type of attack involves monitoring a system without altering data?

• Session Replay Attack

• Denial of Service Attack

• Passive Attack

• Active Attack

Which of the following is a characteristic of active attacks?

• They are always passive

• They do not change any data

• They involve modification of data streams

• They only observe traffic patterns

What does cryptography primarily focus on?

• Increasing data storage capacity

• Securing communication and information

• Creating user interfaces

• Improving network speed

What is the term for the original message before encryption?

• Ciphertext

• Key

• Plaintext

• Hash

Which encryption method uses the same key for both encryption and decryption?

• Public Key Encryption

• Asymmetric Encryption

• Hash Function

• Symmetric Key Encryption

Which of the following is NOT a type of active attack?

• Man-in-the-Middle (MiM)

• Session Replay

• Traffic Analysis

• Denial of Service (DoS)

What is the main challenge in computer security?

• It is always beneficial

• It does not involve algorithms

• It is easy to implement

• It requires regular monitoring

What is the role of a public key in asymmetric cryptography?

• To encrypt messages and verify signatures

• To store data securely

• To decrypt messages

• To create digital signatures

What is the main difference between symmetric and asymmetric encryption?

• Symmetric does not require a key

• Asymmetric is used for data integrity

• Symmetric is slower than asymmetric

• Symmetric uses one key, asymmetric uses two keys