TechMojo Solutions Interview Questions and Answers

Yes, I have worked on e-commerce websites in the past.

• Managed major incidents related to e-commerce website downtime or performance issues

• Coordinated with cross-functional teams to resolve issues quickly and minimize impact on customers

• Implemented incident management best practices to prevent future incidents

• Used monitoring tools to proactively identify potential issues before they impact customers

Association and composition are two types of relationships between classes in object-oriented programming.

• Association is a relationship where two classes are related in some way, but can exist independently. For example, a teacher and a student are associated as a teacher can teach multiple students.

• Composition is a stronger form of association where one class is composed of one or more other classes. For example, a ca...read more

Thread safety in Java refers to the ability of a piece of code to function correctly during simultaneous execution by multiple threads.

• Thread safety is important in multi-threaded environments to prevent race conditions and ensure data consistency.

• Synchronization mechanisms like synchronized blocks, locks, and atomic variables can be used to achieve thread safety.

• Example: Using synchronized keyword to ensure only one t...read more

Runnable is a functional interface used for running a task, while Callable is a functional interface used for returning a result.

• Runnable does not return a result and cannot throw checked exceptions, while Callable can return a result and throw checked exceptions.

• Callable interface is a generic interface that returns a result, while Runnable interface does not return a result.

• Example: Runnable interface is commonly use...read more

Create a tab section using JavaScript

• Use HTML and CSS to create the tab structure

• Use JavaScript to handle the tab functionality

• Add event listeners to the tab elements to switch between tabs

Closures are functions that have access to variables from their outer scope, even after the outer function has finished executing.

• Closures are created when a function is defined inside another function.

• The inner function has access to the outer function's variables, even after the outer function has returned.

• Closures are useful for creating private variables and data encapsulation.

• They can be used to implement callback...read more

Reverse Sting in js means reversing the characters in a string.

• Use the split() method to split the string into an array of characters

• Use the reverse() method to reverse the order of the characters

• Use the join() method to join the characters back into a string