Network Security Analyst Interview Questions and Answers

To troubleshoot LAN, WAN & SECURITY issues, follow these pointers:

• Check network connectivity and configuration

• Verify firewall and security settings

• Analyze network traffic and logs

• Use diagnostic tools like ping, traceroute, and packet capture

• Check for hardware or software failures

• Update firmware and software

• Implement security best practices

• Train users on security awareness

NATting is the process of modifying IP addresses in packet headers while they are in transit across a traffic routing device.

• NAT stands for Network Address Translation.

• It is used to conserve IP addresses by allowing multiple devices to share a single public IP address.

• NAT can be used to translate private IP addresses to public IP addresses and vice versa.

• There are three types of NAT: static NAT, dynamic NAT, and port address translation (PAT).

• NAT can also provide a layer of s...read more

OSPF is an interior gateway protocol while BGP is an exterior gateway protocol.

• OSPF is used within an autonomous system while BGP is used between autonomous systems.

• OSPF uses a link-state routing protocol while BGP uses a path-vector routing protocol.

• OSPF is faster in convergence time while BGP is slower.

• OSPF is less scalable than BGP.

• OSPF is more suited for small to medium-sized networks while BGP is more suited for large networks.

• OSPF is more complex to configure than BGP.

• O...read more

BGP is used for routing and exchanging information between different autonomous systems.

• BGP is used to connect different autonomous systems (AS) to exchange routing information.

• It is used to determine the best path for data to travel between different AS.

• BGP is used by internet service providers (ISPs) to connect their networks to other networks.

• It helps in load balancing and traffic engineering.

• BGP is a scalable protocol that can handle large networks.

• Examples of BGP impleme...read more