Network Security Flashcard

Front

A video conferencing application experiences packet loss and delays during peak hours, while file downloads continue unaffected. Which QoS mechanism should be implemented to prioritize real-time traffic?

Back

Use DiffServ to mark and prioritize RTP (Real-time Transport Protocol) packets

Front

Which QoS mechanism reserves bandwidth for specific flows before data transmission?

Back

IntServ (Integrated Services)

Front

A company wants to limit bandwidth for non-critical applications like social media. Which technique should they use?

Back

Traffic Policing

Front

A user types https://www.example.com in a browser. Which Application Layer protocol is responsible for translating 'www.example.com' to an IP address?

Back

DNS

Front

A company wants employees to access emails from multiple devices while keeping messages synchronized. Which email protocol should be configured?

Back

IMAP

Front

Alice wants to send a confidential message to Bob over an insecure network. She encrypts the message using Bob's public key. Which cryptographic concept ensures only Bob can decrypt it?

Back

Asymmetric Encryption

Front

Which cryptographic algorithm is a symmetric-key block cipher with a fixed block size of 128 bits?

Back

AES

Front

In RSA key generation, what is Φ(n) (Euler's totient function) if n = p × q, where p and q are primes?

Back

(p - 1) × (q - 1)

Front

A hacker intercepts communication between a user and a banking website to steal login credentials. Which type of attack is this?

Back

Man-in-the-Middle (MitM)

Front

An attacker floods a web server with excessive traffic to crash it. This is an example of:

Back

Denial-of-Service (DoS) Attack