Prev Next

Tools / Cyber Security Interview Questions

What is the difference between Symmetric and Asymmetric Encryption?
Symmetric EncryptionAsymmetric Encryption
Uses a single shared key for encryption and decryptionUses a public/private key pair
Fast, suited for encrypting large volumes of dataSlower, suited for small data like keys or signatures
Key distribution is a challenge since both parties need the same secretNo shared secret needed; the public key can be shared openly
Examples: AES, ChaCha20Examples: RSA, ECC

In practice, systems like TLS combine both: asymmetric encryption securely exchanges a symmetric session key during the handshake, then symmetric encryption handles the actual bulk data transfer because it's far faster.

Which encryption type uses a public/private key pair?
Why does TLS use symmetric encryption for the bulk data transfer?

More Related questions...

What is CyberSecurity? What is a Firewall? What are the types of Firewalls? Different Types of Cybersecurity. What is Network Security? What is Cryptography? What is Malware? Explain Information Security. What is Endpoint Security? What are the common types of Malware? What are examples of endpoints in Endpoint security? What is Phishing? What are the three main types of endpoint security? What is Ransomware? What is a Virtual Private Network (VPN)? What are the 5 C's of Cyber Security? What is Multi-Factor Authentication (MFA)? What is a Digital Signature? What is Hashing in Cyber Security? What is a Zero-Day Vulnerability? What is Social Engineering? Define Denial-of-Service (DoS) Attack? What is the purpose of an Intrusion Detection System (IDS)? What is a Honeypot? Describe the CIA Triad in Cyber Security? What is Two-Factor Authentication? What are the types of Access Control models? What is a Security Information and Event Management (SIEM) system? List common types of Cyber Attacks? What is Public Key Infrastructure (PKI)? What is a Man-in-the-Middle (MITM) Attack? What is SQL Injection? What is Cross-Site Scripting (XSS)? What is the difference between IDS and IPS? What is the difference between Symmetric and Asymmetric Encryption? How does SSL/TLS secure communication over the network? Why is the Principle of Least Privilege important? What is the difference between Vulnerability Assessment and Penetration Testing? How does a Firewall differ from a Proxy Server? What is the difference between Authentication and Authorization? When should you use a Web Application Firewall (WAF)? What is the difference between DAC, MAC, and RBAC? Why do we use Salting in password hashing? What happens when a Buffer Overflow attack occurs? How does a Distributed Denial-of-Service (DDoS) Attack differ from a DoS Attack? What is the difference between a Vulnerability, a Threat, and a Risk? How does Zero Trust Architecture change traditional network security? Why should you rotate encryption keys periodically? Explain the lifecycle of an Incident Response process? Explain the internal working of the TLS Handshake? Explain the execution flow of a SQL Injection attack? How can you optimize a SIEM system to reduce alert fatigue? How do you troubleshoot a suspected data breach in its early stages? Which is better and why: Signature-based or Behavior-based Malware Detection? Explain the lifecycle of a Digital Certificate in PKI? Explain the internal working of Kerberos Authentication?
Show more question and Answers...

Datadog Interview questions

Comments & Discussions

Interviews Questions

About Javapedia.net

Javapedia.net is for Java and J2EE developers, technologist and college students who prepare of interview. Also this site includes many practical examples.

This site is developed using J2EE technologies by Steve Antony, a senior Developer/lead at one of the logistics based company.

Follow Javapedia updates

contact: javatutorials2016[at]gmail[dot]com

Kindly consider donating for maintaining this website. Thanks.

Copyright © 2026, javapedia.net, all rights reserved. · .

DMCA.com Protection Status