Tech Mahindra Senior Software Engineer Interview Questions, Process, and Tips

Q1. Not remember, but certainly some basic node js functionality like event loop and it’s phases and multiple threads ne all
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Q1. I don’t remember I m sorry, but there were some problems needed to solve using ur programming skills
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Q1. Basic java like java 8 feature, Data types
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Sql query for self join etc

Q1. Java basic questions
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Q2. Microservices based questions
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Q1. What are the services in Drupal?
Ans. 
Drupal provides various services to extend its functionality and features.
• Drupal core services such as database, cache, and logging

• Third-party services like RESTful web services, search, and email

• Custom services created by developers to meet specific needs

• Services can be accessed through Drupal's Service Container
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Q2. What is patch and how to create and apply
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A patch is a file that contains changes to a software program. It can be created using a diff tool and applied using a patch tool.
• A patch file contains the changes made to a software program.

• It can be created using a diff tool like Git diff or SVN diff.

• The patch file can be applied using a patch tool like Git apply or SVN patch.

• Patches are commonly used to update software programs or fix bugs.

• Patches can also be used t...read more
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Q3. How to create custom module in drupal
Ans. 
To create a custom module in Drupal, follow these steps:
• Create a new folder in the 'modules' directory of your Drupal installation

• Create a .info.yml file in the new folder with module information

• Create a .module file in the new folder with module code

• Enable the module in the Drupal admin interface

• Clear the cache to ensure Drupal recognizes the new module
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Q1. HR discussion like: salary, notice period etc.
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Q1. What is performance tuning
Ans. 
Performance tuning is the process of optimizing software to improve its speed, efficiency, and resource utilization.
• Identifying bottlenecks and areas of inefficiency

• Optimizing algorithms and data structures

• Reducing I/O operations and network latency

• Caching frequently accessed data

• Profiling and benchmarking to measure improvements

• Tuning hardware and infrastructure

• Testing and validating changes before deployment
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Q2. View and materialised view difference
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Difference between view and materialized view
• A view is a virtual table that does not store data, while a materialized view is a physical table that stores data

• Views are dynamically generated while materialized views are precomputed and stored

• Materialized views are faster for read-heavy workloads but slower for write-heavy workloads

• Materialized views need to be refreshed periodically to ensure data consistency
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Q1. How to add system service

Ans. 

To add a system service, you need to create a service unit file and enable it using systemctl.

• Create a service unit file in /etc/systemd/system directory with the necessary configuration

• Reload systemd manager configuration using systemctl daemon-reload

• Enable the service using systemctl enable

• Start the service using systemctl start

• Check the status of the service using systemctl status

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