InDeft Technology Solutions Network and Security Engineer L2 Interview Questions and Answers

IPsec VPN works by encrypting and authenticating all traffic between two endpoints over the internet.

• IPsec VPN uses protocols like AH (Authentication Header) and ESP (Encapsulating Security Payload) to provide security.

• It creates a secure tunnel between the two endpoints, ensuring confidentiality, integrity, and authenticity of the data.

• IPsec VPN can be configured in different modes like transport mode and tunnel mode.

• ...read more

VPC stands for Virtual Private Cloud, a virtual network dedicated to a single account within a cloud provider's infrastructure.

• VPC allows users to define their own virtual network in the cloud

• It provides control over network settings such as IP address range, subnets, route tables, and network gateways

• VPC helps in isolating resources and providing a secure environment within the cloud

• Examples of cloud providers offerin...read more

Sandbox inspection is a security mechanism that isolates and analyzes suspicious files in a controlled environment.

• Sandbox creates a virtual environment to execute and observe potentially malicious files.

• It monitors the behavior of the file to determine if it is safe or malicious.

• Sandbox can detect malware by analyzing its actions without risking the actual system.

• Common sandbox tools include Cuckoo, FireEye, and Palo ...read more

DNS sinkhole is a technique used to redirect malicious traffic to a controlled server for analysis or blocking.

• DNS sinkhole involves redirecting DNS queries for malicious domains to a sinkhole server.

• It can be used to prevent malware from communicating with its command and control server.

• Sinkholing can also be used to gather intelligence on malicious activities by analyzing the traffic.

• Popular tools like BIND and Pi-ho...read more

Persistence type in load balancer refers to the method used to maintain session affinity for client requests.

• Persistence type ensures that subsequent requests from the same client are directed to the same server.

• Common persistence types include source IP, cookie-based, SSL session ID, and URI-based.

• For example, source IP persistence uses the client's IP address to route subsequent requests to the same server.

Packet capture process involves capturing network traffic for analysis and troubleshooting.

• Use tools like Wireshark or tcpdump to capture packets

• Specify the network interface to capture traffic from

• Apply filters to capture specific packets of interest

• Analyze captured packets for troubleshooting network issues

Experienced in network security, troubleshooting, and implementing security protocols to protect organizational data.

• Managed firewall configurations to enhance network security, reducing unauthorized access incidents by 30%.

• Implemented VPN solutions for remote access, ensuring secure connections for over 200 employees.

• Conducted regular security audits and vulnerability assessments, identifying and mitigating potential ...read more