HCLTech Technical Specialist Interview Questions and Answers

VMware and Hyper-V are both virtualization platforms used to create and manage virtual machines.

• VMware is a virtualization software developed by VMware Inc.

• Hyper-V is a virtualization software developed by Microsoft.

• Both VMware and Hyper-V allow users to create and manage virtual machines on a single physical server.

• VMware uses ESXi hypervisor while Hyper-V uses Microsoft's own hypervisor technology.

• Both platforms offe...read more

Patching process involves applying updates to software or systems to fix vulnerabilities and improve performance.

• Identify vulnerabilities in software or systems

• Develop patches to address vulnerabilities

• Test patches to ensure they do not cause any issues

• Deploy patches to the affected software or systems

• Verify that patches have been successfully applied

Active Directory is a directory service developed by Microsoft for Windows domain networks.

• Centralized database for managing network resources

• Stores information about users, computers, groups, etc.

• Allows for authentication and authorization within a network

• Enables single sign-on for users across multiple applications

• Supports group policies for managing security and access control

Windows Server versions differ in features, capabilities, and support.

• Different versions include Windows Server 2008, 2012, 2016, and 2019.

• Newer versions offer improved security, performance, and management tools.

• Each version may have different system requirements and licensing options.

• Features like Hyper-V virtualization, Active Directory, and Remote Desktop Services may vary.

• Support and updates also vary between vers...read more

Keyword and positional parameters are used in programming to pass arguments to functions.

• Keyword parameters allow arguments to be passed by name, making the code more readable and flexible.

• Positional parameters are passed based on their position in the function call.

• Example: def greet(name, age): print(f'Hello {name}, you are {age} years old.') greet(age=25, name='John')

• Example: def greet(name, age): print(f'Hello {nam...read more

Control statement of sort cards for Technical Specialist interview

• Use SORT FIELDS statement to specify the fields to sort on

• Use SORT statement to sort the input records based on specified fields

• Use OUTFIL statement to write the sorted records to output file

Test cases are scenarios designed to validate the functionality of a system, while a test plan outlines the approach, resources, and schedule for testing.

• Test cases are specific conditions or scenarios that are used to validate the functionality of a system.

• Test plans outline the approach, resources, and schedule for testing a system.

• Test cases are derived from requirements and are used to ensure that the system meets ...read more

Comparing two tables and fetching records based on specified criteria.

• Identify common column(s) between the two tables

• Use JOIN operation to combine the tables based on the common column(s)

• Apply WHERE clause to filter records based on specified criteria

Inner join combines records from two tables based on a related column, fetching matching rows.

• An inner join returns only the rows with matching values in both tables.

• Example: SELECT * FROM TableA INNER JOIN TableB ON TableA.id = TableB.a_id;

• Use inner join when you need to find records that exist in both tables.

• It can help in filtering out non-matching records, improving data relevance.

Switching & routing are key functions in networking. Switching directs data within a network, while routing determines the best path for data to travel.

• Switching involves forwarding data packets between devices on the same network segment.

• Routing involves determining the best path for data packets to travel between different networks.

• Switches operate at Layer 2 of the OSI model, while routers operate at Layer 3.

• Example...read more