Wipro Senior Network Security Engineer Interview Questions and Answers

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
Ans. 
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. Fortigate IPsec tunnel
Ans. 
Fortigate IPsec tunnel is a secure connection established between two Fortigate devices for secure communication.
• IPsec tunnel is used to encrypt data traffic between two Fortigate devices

• Fortigate devices authenticate each other using pre-shared keys or certificates

• IPsec tunnel can be configured using the Fortigate web interface or CLI commands
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Q2. Fortigate HA cluster and how it work
Ans. 
Fortigate HA cluster is a high availability setup where two or more Fortigate devices work together to ensure continuous network security.
• Fortigate HA cluster involves setting up two or more Fortigate devices in an active-passive or active-active configuration.

• In active-passive setup, one device is active while the other is on standby, ready to take over in case of failure.

• In active-active setup, both devices actively ...read more
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Q1. Packet FLow of fortigate
Ans. 
Packet flow in Fortigate involves ingress, inspection, routing, and egress stages.
• Ingress stage: Packet enters the Fortigate device through a physical or virtual interface.

• Inspection stage: Packet is inspected by security policies, firewall rules, and security services like antivirus and IPS.

• Routing stage: Packet is routed based on destination IP address and routing table.

• Egress stage: Packet exits the Fortigate device...read more
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Q2. Ipsec tunnel and troubleshooting
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Q1. About yourself and company details
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Q1. BGP and ospf and vlan
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Q2. VSS and stacking switch
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Q1. BGP in depth ospf and vlan
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Q2. Vss and switch stacking switch routing
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Normal aptitude group discussion assignment case study

Coding test assignment one on one round

Q1. Technical vs no tech
Ans. 
Technical skills are essential for a Network Engineer, but soft skills are also important for effective communication and teamwork.
• Technical skills are necessary for configuring and troubleshooting network devices.

• Soft skills like communication, teamwork, and problem-solving are crucial for working effectively with colleagues and clients.

• Balancing technical expertise with interpersonal skills is key to success in the r...read more
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Q2. Dhcp vs dns gdp vs rdp frp vs 30nd
Ans. 
DHCP is a protocol used to assign IP addresses dynamically to devices on a network, while DNS is a system that translates domain names to IP addresses.
• DHCP assigns IP addresses to devices on a network dynamically

• DNS translates domain names to IP addresses

• RDP (Remote Desktop Protocol) allows users to remotely connect to a computer

• FRP (Fiberglass Reinforced Plastic) is a material used in construction

• 30nd does not seem to
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Q1. What is the full form of HR?
Ans. 
Human Resources
• HR stands for Human Resources

• It is a department within an organization responsible for managing employees

• HR handles recruitment, training, benefits, and employee relations

• Example: The HR department at XYZ Company is in charge of hiring new employees
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Q2. What are the 7 functions of HR?
Ans. 
The 7 functions of HR include recruitment, training, performance management, employee relations, compensation and benefits, compliance, and HR strategy.
• Recruitment: Attracting and hiring qualified candidates for open positions.

• Training: Providing employees with the necessary skills and knowledge to perform their jobs effectively.

• Performance management: Evaluating and improving employee performance through feedback and ...read more
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Q3. Tell me about your self ?
Ans. Hello sir/mam good day First of all thank you for giving me opportunity to introduce myself my name is sujatha I'm 22 years old am rayachoty I have completed b.com computer applications from SV University Sdhr degree college Thirupati my strengths are iam self motivated playing games and reading books. My short term goal is to get a job in a HCl company My long term goal is achieved good position in company in compa...read more
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Q4. Tell me something about our company
Ans. This is one best companies in the corporate world There is good environment. Companies take care of employees and provide good security a good opportunity so very scope is there in the future .
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Q5. How much salary do you expect?
Ans. First of all iama fresher Iam expecting a salary according to the company norms.
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Q6. Do you have any questions for me?
Ans. Yes sir/mam What do you think I should improve myself
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Q1. What is 3 way hand shaking
Ans. 
3 way hand shaking is a process in TCP/IP communication where three packets are exchanged to establish a connection.
• Three packets are involved: SYN, SYN-ACK, ACK

• SYN packet is sent by the client to the server to initiate the connection

• SYN-ACK packet is sent by the server to the client as a response

• ACK packet is sent by the client to the server to confirm the connection
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Q2. What is OSI Model
Ans. 
The OSI Model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI Model stands for Open Systems Interconnection Model.

• It helps in understanding how data is transferred between devices in a network.

• Each layer has specific functions and communicates with the adjacent layers.

• Examples of layers include Physical, Data Link, Network, Transport, Sessio
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Q3. Tell about your work culture
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Q4. Difference between tcp and udp
Ans. 
TCP is connection-oriented, reliable, and slower, while UDP is connectionless, unreliable, and faster.
• TCP is connection-oriented, meaning it establishes a connection before sending data, while UDP is connectionless.

• TCP is reliable as it ensures all data is received in order and without errors, while UDP does not guarantee delivery.

• TCP is slower due to the overhead of establishing and maintaining connections, while UDP ...read more
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Q5. What is firewall
Ans. 
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

• Filters traffic based on rules set by the network administrator

• Can be hardware-based or software-based

• Examples include Cisco ASA, Palo Alto Networks, and pfSense
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Q1. Bgp ospf,stp,nexus
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Q2. Aws,azure,vxlan,vnet
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The interview was very good as they asked me my experiences(good & bad) from the day I am professional. How to handle the situations when a senior person makes a mistake. What are the ways of learning that you prefer.

Q1. Which tools have I worked for.
Ans. 
I have worked with a variety of tools as a Network Engineer.
• Cisco Packet Tracer

• Wireshark

• SolarWinds Network Performance Monitor

• Nmap

• GNS3

• Ping

• Traceroute
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Q2. Which technologies I've worked on.
Ans. 
I have worked on a variety of technologies as a Network Engineer.
• Cisco networking equipment

• Routing and switching protocols (e.g. OSPF, BGP)

• Firewalls and security appliances (e.g. Cisco ASA, Palo Alto)

• Network monitoring and management tools (e.g. SolarWinds, Wireshark)

• Virtualization technologies (e.g. VMware, Hyper-V)

• Load balancers (e.g. F5, Citrix NetScaler)

• Wireless networking (e.g. Cisco Meraki, Aruba)

• Network troubles
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Q3. Brief questions on all technologies and technical terms.
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Q1. No questions. Only HR discussions.
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