Computer Access Technical Support Engineer Interview Questions and Answers

JUnit test cases for different scenarios

• Identify different scenarios to be tested

• Write test cases for each scenario

• Ensure test cases cover all possible outcomes

• Use assertions to verify expected results

• Mock dependencies if necessary

A timestamp converter that converts timestamp to date and time.

• Use a programming language that supports date and time functions.

• Convert the timestamp to a date and time format using the appropriate function.

• Handle time zone differences if necessary.

• Consider the output format required.

Design a parking lot

• Determine the size and capacity of the parking lot

• Decide on the layout and number of parking spaces

• Implement a system for managing parking spots and payments

• Consider adding features such as security cameras and lighting

• Ensure accessibility for disabled individuals

Integration, middleware, and EAI systems are technologies that enable communication and data exchange between different software applications.

• Integration involves connecting different software applications to enable data exchange and communication.

• Middleware is software that sits between different applications and facilitates communication and data exchange.

• EAI (Enterprise Application Integration) systems are a type of...read more

Sets are unordered collections of unique elements while lists are ordered collections of elements.

• Sets do not allow duplicate elements while lists do.

• Sets do not maintain the insertion order while lists do.

• Sets have faster lookup time for specific elements while lists have faster iteration time.

• Examples of sets in Java include HashSet and TreeSet while examples of lists include ArrayList and LinkedList.

Finally block is used to execute code after try-catch block, regardless of whether an exception is thrown or not.

• Finally block is optional and follows the catch block.

• It is used to clean up resources like closing files, database connections, etc.

• Finally block is executed even if an exception is not caught.

• It is used to ensure that a certain piece of code is always executed.

• Example: try { //code } catch (Exception e) { ...read more