HCLTech Specialist Interview Questions and Answers

I have experience working with Java, Spring Boot, and Angular in my last project.

• Worked on developing backend services using Java and Spring Boot

• Implemented front-end functionalities using Angular framework

• Collaborated with team members to integrate different technologies for a seamless application

• Utilized RESTful APIs for communication between front-end and back-end

In my last role, I worked on cloud solutions and data analytics using AWS and Python to enhance operational efficiency.

• Developed cloud-based applications using AWS services like EC2 and S3.

• Utilized Python for data analysis and automation tasks, improving data processing time by 30%.

• Collaborated with cross-functional teams to implement CI/CD pipelines using Jenkins.

• Implemented data visualization tools like Tableau to pr...read more

DHCP assigns IP addresses dynamically through a four-step process: Discover, Offer, Request, and Acknowledge.

• 1. DHCP Discover: Client broadcasts a request for an IP address.

• 2. DHCP Offer: Server responds with an available IP address and configuration details.

• 3. DHCP Request: Client requests the offered IP address from the server.

• 4. DHCP Acknowledge: Server confirms the assignment, and the client can use the IP address.

OSPF neighbor states define the stages of establishing and maintaining OSPF adjacencies between routers.

• 1. Down: No OSPF packets received; neighbor is not known.

• 2. Attempt: Used in point-to-point networks; router is trying to establish a connection.

• 3. Init: OSPF packets received, but no acknowledgment; neighbor is known but not fully established.

• 4. Two-Way: Routers have seen each other; they can now exchange routing in...read more

VLANs enhance network efficiency and security, while Inter-VLAN routing enables communication between different VLANs.

• Improved security: VLANs isolate sensitive data, e.g., separating finance and HR departments.

• Reduced broadcast traffic: VLANs limit broadcast domains, minimizing unnecessary traffic.

• Enhanced performance: By segmenting networks, VLANs can improve overall network performance.

• Simplified management: VLANs a...read more

The root bridge in STP is selected based on the lowest Bridge ID, which consists of the Bridge Priority and MAC address.

• Bridge ID is a combination of Bridge Priority (default 32768) and MAC address.

• The switch with the lowest Bridge ID becomes the root bridge.

• If two switches have the same Bridge Priority, the one with the lower MAC address wins.

• Example: Switch A (Priority 32768, MAC 00:11:22:33:44:55) vs. Switch B (Prio...read more

HSRP provides network redundancy by allowing multiple routers to work together as a single virtual router.

• HSRP enables high availability by designating one router as the active router and others as standby.

• The active router handles all traffic, while standby routers monitor its status.

• If the active router fails, a standby router takes over, ensuring continuous network service.

• HSRP uses a virtual IP address that clients...read more

OSPF is a routing protocol used to exchange routing information between routers in a network. Configuration involves enabling OSPF and defining network areas.

• Enable OSPF on the router interface

• Define OSPF network areas

• Configure OSPF routing process

• Verify OSPF neighbor relationships

LSA stands for Latent Semantic Analysis, a technique used in natural language processing to analyze relationships between a set of documents and the terms they contain.

• LSA is a mathematical technique that analyzes relationships between a set of documents and the terms they contain

• It is used to extract and identify the underlying structure of text data

• LSA is based on the principle that words that are used in similar con...read more