Tech Mahindra Senior Network Security Engineer Interview Questions and Answers

Q1. Traffic flow of Firewall
Ans. 
Firewall traffic flow refers to the movement of data packets through the firewall based on defined rules and policies.
• Firewall inspects incoming and outgoing traffic to determine if it should be allowed or blocked

• Traffic flow can be controlled using access control lists (ACLs) and security policies

• Firewall can also perform Network Address Translation (NAT) to hide internal IP addresses

• Examples of traffic flow include a...read more
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Q2. Architecture of Firewall
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Firewall architecture involves packet filtering, stateful inspection, and application layer filtering to protect networks.
• Firewall acts as a barrier between internal network and external network

• Packet filtering examines packets based on predefined rules to allow or block traffic

• Stateful inspection tracks the state of active connections to make decisions on allowing or blocking traffic

• Application layer filtering inspect...read more
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Q1. Situation based questions
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Q2. Escalation and P1 cases handled
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Q1. Reason for change
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I am seeking new challenges and opportunities for growth in my career.
• Seeking new challenges to expand my skills and knowledge

• Opportunities for career growth and advancement

• Desire for a change in work environment or company culture
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Q2. Salary expectation
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Q1. Explain the role of Virtual router and virtual system
Ans. 
Virtual router and virtual system play a crucial role in network security by providing isolated environments for routing and security policies.
• Virtual router is a software-based routing instance that operates within a virtualized environment.

• Virtual system is a logical division of a physical firewall that allows for separate security policies and configurations.

• Both virtual router and virtual system help in creating is...read more
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Q2. What is app-id, content-id
Ans. 
App-ID and Content-ID are features used in network security to identify and control applications and content.
• App-ID is used to identify applications based on their behavior, not just port and protocol

• Content-ID is used to identify and control content within applications

• Both features are commonly used in next-generation firewalls for advanced security policies

• Example: App-ID can identify and block social media applicati...read more
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Q1. What is U-turn Nat
Ans. 
U-turn NAT is a network configuration where traffic enters and exits the same interface on a network device.
• U-turn NAT is also known as hairpin NAT or NAT loopback.

• It allows internal hosts to access resources using their public IP address from within the same network.

• This is commonly used in scenarios where internal hosts need to access a server using its public IP address.

• U-turn NAT can be configured on firewalls or r
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Q2. What is service route
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A service route is the path that a service takes to reach its destination, including all the network devices it passes through.
• Service routes can include routers, switches, firewalls, and other network devices.

• Understanding service routes is important for network security to identify potential vulnerabilities or points of failure.

• Examples of service routes include the path an email takes from sender to recipient, or th...read more
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Q3. What is wildfire
Ans. 
Wildfire is a type of malware analysis service provided by Palo Alto Networks.
• Malware analysis service

• Identifies and blocks unknown threats in real-time

• Utilizes machine learning and AI for threat detection
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Q1. Explain about SIEM TOOL and which SIEM tool you have used ?
Ans. 
SIEM (Security Information and Event Management) tool is a software solution that aggregates and analyzes security data from various sources.
• SIEM tools help in detecting and responding to security incidents in real-time.

• They provide centralized visibility into an organization's security posture.

• Examples of SIEM tools include Splunk, IBM QRadar, and ArcSight.

• I have experience using Splunk for log management and security
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Q2. Have you configured policies in defender ?
Ans. 
Yes, I have configured policies in defender.
• Yes, I have configured policies in Windows Defender to ensure proper security measures are in place.

• I have set up policies for malware protection, network protection, firewall settings, and device control.

• Regularly review and update policies to adapt to new threats and vulnerabilities.

• Example: Configuring Windows Defender policies to block certain file types from being downlo
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Easy 20 questions we need to complete in 30 mins.

Q1. Basic computer science questions like networking, coding language, dsa
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Q1. Normal hr questions rate your self tell me about yourself weeknesses
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Q1. What's DNS server
Ans. 
A DNS server is a computer server that contains a database of public IP addresses and their associated hostnames.
• Translates domain names to IP addresses

• Resolves queries from clients

• Helps in navigating the internet by mapping domain names to IP addresses
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Q1. Tell us about qualys agent
Ans. 
The Qualys agent is a lightweight software installed on endpoints to collect security data and perform security assessments.
• Qualys agent is a lightweight software installed on endpoints to collect security data.

• It helps in performing security assessments by scanning for vulnerabilities and compliance issues.

• The agent continuously monitors the endpoint for any security threats and sends the data to the Qualys Cloud Plat...read more
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Q1. Tell me about yourself
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I am a dedicated Information Security Analyst with a strong background in cybersecurity and a passion for protecting data.
• Experienced in conducting security assessments and implementing security measures

• Skilled in analyzing security breaches and responding effectively

• Proficient in using security tools and technologies such as firewalls and encryption

• Strong understanding of compliance regulations and best practices in i
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Q1. Discuss about latest threat that i encountered
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Q2. Difference between kill cahin and mitre framework
Ans. 
Kill Chain is a cybersecurity attack model while MITRE Framework is a knowledge base for cyber threats.
• Kill Chain is a step-by-step model that outlines the stages of a cyber attack, from initial reconnaissance to data exfiltration.

• MITRE Framework is a comprehensive list of known tactics, techniques, and procedures used by cyber adversaries.

• Kill Chain helps organizations understand and defend against cyber attacks, whil...read more
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Q1. Salary compensation
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C,C#,C++,Dart,Go,Type script

Q1. How can you create a virus to correct a crashed server? Answer : a. Read all data console. B. using any server detector . C. Use advance knowledge on cybersecurity difference system to quick recreate. Answ...read more
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Q2. Answer my Q1 and try to contact me
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Q1. Vulnerability management in cloud environment
Ans. 
Vulnerability management in cloud environment involves identifying, prioritizing, and mitigating security weaknesses.
• Regularly scan cloud infrastructure for vulnerabilities

• Patch and update software to address vulnerabilities

• Implement access controls and encryption to protect data

• Utilize security tools like intrusion detection systems and firewalls

• Monitor and analyze security logs for suspicious activity
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Q2. Storage maintenance in Azure
Ans. 
Storage maintenance in Azure involves monitoring, optimizing, and managing storage resources to ensure performance and availability.
• Regularly monitor storage usage and performance metrics

• Optimize storage by implementing tiered storage and data archiving

• Manage access controls and permissions to prevent unauthorized access

• Implement backup and disaster recovery strategies for data protection

• Update storage configurations a
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