Security Engineer 2 Interview Questions and Answers

Hashing algorithms are important for data security as they convert data into a fixed-size string of bytes, making it difficult to reverse engineer the original data.

• Hashing algorithms are used to securely store passwords by converting them into a unique hash value, making it difficult for attackers to retrieve the original password.

• They are also used in digital signatures to ensure data integrity and authenticity.

• Hashing algorithms are crucial in blockchain technology to secu...read more

Data security can be achieved through encryption, access control, regular audits, and employee training.

• Implement strong encryption algorithms to protect data in transit and at rest

• Use access control mechanisms to restrict unauthorized access to sensitive data

• Conduct regular security audits to identify vulnerabilities and address them promptly

• Provide comprehensive training to employees on data security best practices

• Implement multi-factor authentication for added security

The pillars of security are confidentiality, integrity, and availability.

• Confidentiality ensures that only authorized individuals can access sensitive information.

• Integrity ensures that data remains accurate and unaltered.

• Availability ensures that data and resources are accessible when needed.

• Other pillars may include authentication, authorization, and non-repudiation.

Troubleshooting high utilisation

• Identify the source of high utilisation

• Check for any misconfigurations or errors

• Analyze network traffic and system logs

• Optimize system resources or upgrade hardware if necessary

To mitigate DDoS attacks, implement network security measures, use DDoS protection services, and monitor traffic patterns.

• Implement network security measures such as firewalls, intrusion detection systems, and access control lists

• Use DDoS protection services like cloud-based DDoS mitigation services or on-premise DDoS protection appliances

• Monitor traffic patterns for any unusual spikes or patterns that may indicate a DDoS attack

• Utilize rate limiting and traffic filtering to b...read more