Applied Cryptography Quiz

What is Cyber Security?

• The practice of defending computers and networks from attacks.

• A method to enhance physical security.

• A way to improve software performance.

What are the basic components of Computer Security?

• Confidentiality, Integrity, and Availability

• Authentication, Authorization, and Accounting

• Encryption, Decryption, and Hashing

What is a threat in the context of security?

• A potential for violation of security.

• A method to secure data.

• A type of encryption.

What is an active attack?

• An assault on system security that modifies data.

• A method of eavesdropping.

• A way to prevent unauthorized access.

What does the CIA triangle stand for?

• Confidentiality, Integrity, Availability

• Control, Information, Access

• Communication, Integrity, Authentication

What is the goal of passive attacks?

• To obtain information being transmitted.

• To modify the data stream.

• To deny service to users.

What is the definition of a security mechanism?

• Any process designed to detect or prevent security attacks.

• A type of encryption algorithm.

• A method to improve network speed.

What is the purpose of security services?

• To provide authentication and data confidentiality.

• To enhance software performance.

• To monitor network traffic.

What is the main challenge in upgrading satellite software?

• It cannot be done remotely after launch.

• It is too expensive.

• It requires physical access to the satellite.

What are the ways to ensure confidentiality?

• Usernames and passwords

• Government documents

• Two-factor authentication

• Trade secrets

• Credit card numbers