Slk Software Services Interview Questions and Answers

Q1. Some React JS basics Question
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Q1. JavaScript and React Js question live coding
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Q1. Salary expectation and joining date
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Q1. What is the difference between a temporary table and a table variable?
Ans. 
Temporary tables are session-specific, while table variables are scoped to the batch or procedure they are defined in.
• Temporary tables are created using 'CREATE TABLE #TempTable' and exist for the duration of the session.

• Table variables are declared using '@TableVariable' and are limited to the scope of the batch or stored procedure.

• Temporary tables can have indexes and statistics, while table variables cannot have ind...read more
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Q2. What is ACID in the context of database transactions?
Ans. 
ACID ensures reliable processing of database transactions through Atomicity, Consistency, Isolation, and Durability.
• Atomicity: A transaction is all-or-nothing. Example: Transferring money from one account to another must either complete fully or not at all.

• Consistency: Transactions must leave the database in a valid state. Example: If a transaction violates a constraint, it should be rolled back.

• Isolation: Transactions...read more
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Q3. What is a deadlock ?
Ans. 
A deadlock occurs when two or more transactions are waiting for each other to release resources, causing a standstill.
• Deadlocks happen in multi-user database environments.

• Example: Transaction A holds Resource 1 and waits for Resource 2, while Transaction B holds Resource 2 and waits for Resource 1.

• Deadlocks can lead to performance issues and require detection and resolution mechanisms.

• Database systems often have deadlo...read more
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Q4. What is a subquery?
Ans. 
A subquery is a query nested within another SQL query, used to retrieve data based on the results of the outer query.
• Subqueries can be used in SELECT, INSERT, UPDATE, or DELETE statements.

• Example: SELECT * FROM employees WHERE department_id IN (SELECT id FROM departments WHERE location = 'New York');

• They can return single or multiple values.

• Subqueries can be correlated (dependent on the outer query) or non-correlated (...read more
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Q5. What is the difference between the Union and join operators?
Ans. 
Union combines results from multiple queries, while join merges rows based on related columns.
• Union combines the result sets of two or more SELECT statements.

• Join combines columns from two or more tables based on a related column.

• Example of Union: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

• Example of Join: SELECT table1.column1, table2.column2 FROM table1 JOIN table2 ON table1.id = table2.id;

• Union remo...read more
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Q1. Explain about the projects
Ans. 
Projects in UiPath involve automating repetitive tasks using software robots.
• Projects involve identifying processes suitable for automation

• Creating workflows using UiPath Studio

• Testing and debugging automation scripts

• Deploying automation solutions in production environment

• Monitoring and maintaining automated processes

• Examples: automating invoice processing, data entry tasks, report generation
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Q2. How you handled errors and exceptions
Ans. 
I handle errors and exceptions by identifying root causes, implementing solutions, and continuously improving processes.
• Identify root causes of errors and exceptions

• Implement solutions to prevent future occurrences

• Continuously improve processes to minimize errors

• Use tools like UiPath Orchestrator for monitoring and troubleshooting

• Document errors and resolutions for reference
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It covers all the fundamental questions from various subjects such as Operating Systems, Database Management Systems, and Data Structures and Algorithms, along with concepts from programming languages and aptitude.

Q1. What is the process to determine if a number is a palindrome?
Ans. 
A palindrome number is the same when read forwards and backwards.
• Convert the number to a string.

• Reverse the string.

• Compare the original string with the reversed string to check if they are equal.
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Q1. What questions were you asked regarding your family background?
Ans. 
I was not asked any questions regarding my family background.
• No questions were asked about my family background

• The interview focused on my qualifications and experience
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Q2. What situational-based questions were asked during the interview?
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