HCLTech Senior Security Analyst Interview Questions and Answers

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

• Acts as a barrier between a trusted internal network and untrusted external network

• Can be hardware-based or software-based

• Filters traffic based on IP addresses, ports, protocols, and other criteria

• Helps prevent unauthorized access and cyber attacks

• Examples include Cisco ASA, Pal

Some trending security technologies include zero trust security, cloud security, and AI-driven security solutions.

• Zero trust security: Focuses on verifying identity and enforcing least privilege access controls.

• Cloud security: Addresses security concerns related to cloud computing and storage.

• AI-driven security solutions: Utilize artificial intelligence and machine learning to detect and respond to security threats.

• Blo...read more

EDR stands for Endpoint Detection and Response, a security solution that monitors and responds to endpoint threats.

• EDR solutions provide real-time visibility into endpoint activity and behavior.

• They use advanced analytics and machine learning to detect and respond to threats.

• EDR solutions can also provide forensic analysis to investigate incidents and identify root causes.

• Examples of EDR solutions include Carbon Black,...read more

EDR stands for Endpoint Detection and Response. It is a security solution that monitors and responds to endpoint threats.

• EDR solutions use agents installed on endpoints to collect data and send it to a central server for analysis.

• They use behavioral analysis and machine learning to detect and respond to threats in real-time.

• EDR solutions can also provide forensic data to investigate incidents and improve security postu...read more

Main event IDs to monitor as an SOC analyst

• Event ID 4624 - Successful account logon

• Event ID 4625 - Failed account logon

• Event ID 4768 - Kerberos authentication ticket request

• Event ID 4769 - Kerberos service ticket request

• Event ID 5140 - Network share access

• Event ID 5156 - Firewall rule added

• Event ID 7035 - Service control manager event

• Event ID 7045 - Service installation

• Event ID 800 - Windows update installation