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Garbage collector automatically frees up memory by identifying and removing unused objects.
Garbage collector is a part of the runtime environment.
It periodically scans the heap memory for objects that are no longer in use.
It identifies and removes these objects, freeing up memory for other objects.
Garbage collector uses different algorithms like Mark and Sweep, Reference Counting, etc.
Example: Java has a garbage collec...
Session management refers to the process of securely managing user sessions on a web application.
It involves creating a unique session ID for each user upon login.
The session ID is stored in a cookie or URL parameter and is used to identify the user's session.
Session data is stored on the server and can include user information, preferences, and activity.
Session timeouts are set to ensure that inactive sessions are ter...
Optimizing SQL queries involves reducing the number of operations and improving indexing.
Use indexes to speed up query execution
Avoid using SELECT * and only select necessary columns
Use WHERE clause to filter data before joining tables
Avoid using subqueries and instead use JOINs
Use EXPLAIN to analyze query performance
Dataset is an in-memory representation of data while DataReader is a forward-only, read-only stream of data.
Dataset is disconnected while DataReader is connected.
Dataset can hold multiple tables while DataReader can hold only one.
Dataset can be used to update data while DataReader cannot.
DataReader is faster and more efficient for reading large amounts of data.
Example: Dataset is used to hold data retrieved from a data...
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I applied via campus placement at Maharaja Agrasen Institute of Technology, Delhi and was interviewed in Dec 2024. There were 5 interview rounds.
I am writing automation and clicking on aptitude test.
I am writing automation and clicking on assignment test.
This is an automation test. I got this task from my senior. I'm doing good.
I applied via Campus Placement and was interviewed in Oct 2024. There was 1 interview round.
I applied via campus placement at Maharaja Agrasen Institute of Technology, Delhi and was interviewed in Dec 2024. There were 5 interview rounds.
I am writing automation and clicking on aptitude test.
I am writing automation and clicking on assignment test.
This is an automation test. I got this task from my senior. I'm doing good.
I applied via Walk-in and was interviewed in Dec 2024. There was 1 interview round.
I applied via campus placement at Maharaja Agrasen Institute of Technology, Delhi and was interviewed in Dec 2024. There were 5 interview rounds.
I am writing automation and clicking on aptitude test.
I am writing automation and clicking on assignment test.
This is an automation test. I got this task from my senior. I'm doing good.
My name is John Doe.
My name is John Doe.
I go by John.
John is my first name, and Doe is my last name.
I applied via campus placement at Maharaja Agrasen Institute of Technology, Delhi and was interviewed in Dec 2024. There were 5 interview rounds.
I am writing automation and clicking on aptitude test.
I am writing automation and clicking on assignment test.
This is an automation test. I got this task from my senior. I'm doing good.
I applied via Recruitment Consulltant and was interviewed in Nov 2024. There was 1 interview round.
I applied via campus placement at Maharaja Agrasen Institute of Technology, Delhi and was interviewed in Dec 2024. There were 5 interview rounds.
I am writing automation and clicking on aptitude test.
I am writing automation and clicking on assignment test.
This is an automation test. I got this task from my senior. I'm doing good.
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