10+ Synechron Interview Questions and Answers for Freshers

Iterate through the list and find pairs of numbers that sum up to 6

• Iterate through the list and check if the current number + any other number in the list equals 6

• Store the pairs of numbers that sum up to 6 in a separate list

• Return the list of pairs

A 408 status in API testing in Postman is received when the server times out while waiting for a request.

• 408 status code indicates that the server did not receive a complete request within the time that it was prepared to wait.

• This can happen if the client takes too long to send the request or if the server is overloaded.

• It is important to adjust timeout settings in Postman to avoid receiving 408 status codes.

• Example: If the server expects a request to be completed within 10 ...read more

A palindrome program in Java checks if a given string reads the same forwards and backwards.

• Create a function that takes a string input

• Use a loop to compare characters from both ends of the string

• Return true if the string is a palindrome, false otherwise

Diamond problem in Java occurs when a class inherits from two classes that have a common ancestor, resulting in ambiguity.

• Diamond problem arises in multiple inheritance scenarios in Java.

• It occurs when a class inherits from two classes that have a common ancestor.

• To resolve the diamond problem, Java does not support multiple inheritance through classes, but it can be achieved using interfaces.

• Example: Class A and Class B both inherit from Class C, and Class D inherits from bo...read more

Program to reverse a string

• Create a char array from the input string

• Use two pointers to swap characters from start and end

• Continue swapping until pointers meet in the middle

Thread pool is a collection of threads that are used to execute tasks concurrently. It helps in reducing the overhead of thread creation.

• Thread pool manages a fixed number of threads and assigns tasks to them as they become available.

• It helps in improving the performance of applications by reducing the time taken to create and destroy threads.

• Thread pool can be managed using various parameters such as the size of the thread pool, the priority of threads, and the maximum numbe...read more

Thread life cycle refers to the various stages a thread goes through during its execution.

• Thread is created

• Thread is started

• Thread is running

• Thread is blocked

• Thread is terminated

Software Testing Life Cycle involves planning, designing, executing, and reporting on tests to ensure quality software.

• 1. Planning phase involves defining test objectives, scope, and resources.

• 2. Design phase includes creating test cases, test data, and test environment setup.

• 3. Execution phase is where tests are run, defects are logged, and retesting is done.

• 4. Reporting phase involves documenting test results, defects, and overall quality assessment.

• 5. Iterative process wit...read more

A cursor is a database object used to retrieve and manipulate data in a database management system.

• A cursor allows for sequential processing of query results one row at a time.

• It can be used to update or delete specific rows in a result set.

• Cursors are commonly used in stored procedures and triggers.

• Example: DECLARE cursor_name CURSOR FOR SELECT column1, column2 FROM table_name;

Query using listagg function to concatenate values into a single string

• Use the listagg function followed by the column name and delimiter in parentheses

• Specify the order by clause if needed

• Can be used in SQL queries to display aggregated data