Inspire Infotech Network Security Engineer Interview Questions, Process, and Tips

I have hands-on experience with various network security devices.

• Firewalls: Cisco ASA, Palo Alto, Fortinet

• Intrusion Detection/Prevention Systems: Snort, Suricata

• VPN: Cisco AnyConnect, OpenVPN

• Web Application Firewalls: ModSecurity, F5 ASM

• SIEM: Splunk, ELK

• Network Access Control: Cisco ISE, Aruba ClearPass

Daily operations activities involve monitoring, maintaining and securing network infrastructure.

• Monitoring network traffic and identifying any anomalies or security threats

• Maintaining network hardware and software, including updates and patches

• Configuring and managing firewalls, routers, switches, and other network devices

• Managing user accounts and access permissions

• Performing regular backups and disaster recovery plan...read more

The VLANs used depend on the network architecture and requirements.

• VLANs are used to logically separate network traffic.

• They can be used to improve security and network performance.

• Common VLANs include management, voice, and data VLANs.

• The VLANs used depend on the network architecture and requirements.

• VLAN tagging is used to identify VLAN traffic on a network.

• VLANs can be configured on switches, routers, and firewalls.

DNS infrastructure is a system that translates domain names into IP addresses to enable communication between devices on a network.

• DNS servers store records of domain names and their corresponding IP addresses.

• DNS resolution can be recursive or iterative.

• DNS cache is used to speed up the resolution process.

• DNSSEC is used to secure DNS infrastructure.

• DNS load balancing can be used to distribute traffic across multiple s...read more

I am currently working on Cisco ASA firewalls, Palo Alto firewalls, and F5 load balancers.

• Working on configuring and maintaining Cisco ASA firewalls for network security

• Configuring and managing Palo Alto firewalls for threat prevention and network security

• Managing and configuring F5 load balancers for traffic distribution and application security

Routers are used to connect different networks while switches are used to connect devices within a network.

• Routers operate at the network layer (Layer 3) of the OSI model while switches operate at the data link layer (Layer 2).

• Routers can perform functions such as routing, filtering, and forwarding packets based on IP addresses.

• Switches are used to create a network by connecting devices such as computers, printers, and...read more