Quiz on Network and Information Security

What is the primary purpose of cryptography?

• To speed up data transmission

• To ensure data integrity

• To make data unintelligible to unauthorized users

• To make data accessible to everyone

Which of the following is NOT a principle of security in information systems?

• Integrity

• Confidentiality

• Transparency

• Availability

What does the term 'steganography' refer to?

• The creation of digital signatures

• The process of encrypting data

• The art of hiding information within other data

• The analysis of encrypted messages

Which algorithm is considered unbreakable?

• DES

• Vernam cipher

• AES

• RSA

What is a Virtual Private Network (VPN)?

• A network that does not require encryption

• A secure connection over the Internet

• A public network for everyone

• A type of wireless network

Which of the following is a requirement for internal security?

• Open communication channels

• No restrictions on data access

• Confidentiality of information

• Public access to information

What is the role of the TCP in the TCP/IP protocol suite?

• To encrypt data

• To find the path for data transmission

• To ensure reliable communication

• To manage user authentication

What does 'non-repudiation' ensure in information security?

• Data can be accessed by anyone

• The sender cannot deny sending the message

• Information is always available

• Data is always encrypted

Which type of network connects systems over a large geographical area?

• Metropolitan Area Network (MAN)

• Local Area Network (LAN)

• Wide Area Network (WAN)

• Personal Area Network (PAN)

What is the main advantage of using steganography over cryptography?

• It is easier to implement

• It does not attract attention

• It is more secure

• It is faster