Synechron Senior Associate Interview Questions and Answers

Closure is the process of finalizing or completing something, often used in project management or therapy.

• Closure is important for bringing a sense of completion or resolution to a situation.

• In project management, closure involves wrapping up all loose ends and documenting the project's outcomes.

• In therapy, closure can refer to the process of accepting and moving on from past experiences or relationships.

• Closure c...read more

Double check locking is a design pattern used to prevent multiple threads from creating multiple instances of a singleton class.

• Create a private static instance variable with volatile keyword to ensure visibility across threads

• Use synchronized block inside if condition to check and create instance only once

• Check instance again inside synchronized block to prevent race condition

• Example: private static volatile Sin...read more

Current CTC is INR 12,00,000 per annum

• Current CTC is INR 12,00,000 per annum

• CTC includes salary, bonuses, and other benefits

• CTC may vary based on performance and company policies

Expected CTC per annum is negotiable based on the role and responsibilities.

• CTC can vary based on the company, industry, location, and level of experience.

• It is important to research the market standards for the specific role before providing a figure.

• Candidates can mention a range or state that they are open to discussing compensation during the interview process.

Procedures are reusable blocks of code that can return values, while functions are named blocks of code that can be called.

• Procedures do not return values, while functions do.

• Functions must return a value, procedures do not have to.

• Functions are called by name, procedures are called by using the CALL statement.

• Functions can be used in SQL queries, procedures cannot.

Delete and truncate are both operations used to remove data, but they differ in their approach and outcome.

• Delete removes entire records or rows from a database, while truncate removes all records from a table

• Delete is slower and can be rolled back, while truncate is faster but cannot be rolled back

• Delete triggers triggers and constraints, while truncate does not

Hashmaps use arrays and linked lists to store key-value pairs, allowing for efficient data retrieval.

• Hashmap uses an array to store data, where each index corresponds to a hash value of a key.

• A hash function converts keys into hash codes, which determine the index in the array.

• In case of collisions (multiple keys mapping to the same index), linked lists or trees are used to store entries.

• Example: For a key 'apple'...read more

SQL joins are used to combine rows from two or more tables based on a related column between them.

• Use INNER JOIN to return rows when there is at least one match in both tables

• Use LEFT JOIN to return all rows from the left table and the matched rows from the right table

• Use RIGHT JOIN to return all rows from the right table and the matched rows from the left table

• Use FULL JOIN to return rows when there is a match in...read more