Tek Leaders Interview Questions and Answers

Reverse a string in Java using StringBuilder or iterative approach.

• Use StringBuilder to reverse the string: StringBuilder sb = new StringBuilder(str); sb.reverse().toString();

• Iterative approach: Convert the string to char array, swap characters from start and end indexes until middle is reached.

The xpath for MakeMyTrip datepicker can be written using unique attributes of the datepicker element.

• Use unique attributes like class, id, or data-testid to locate the datepicker element

• Consider the structure of the datepicker and its parent elements when writing the xpath

• Use indexes or sibling relationships if necessary to pinpoint the datepicker element

Use SQL query with ORDER BY clause to order employees in ascending order.

• Use SELECT statement to retrieve employee data

• Add ORDER BY clause with the column you want to order by

• Specify ASC keyword for ascending order

• Example: SELECT * FROM employees ORDER BY employee_id ASC;

Smoke testing is a subset of regression testing, focusing on basic functionality, while sanity testing is a subset of acceptance testing, focusing on specific areas.

• Smoke testing is performed to check if the critical functionalities of the application are working fine after changes.

• Sanity testing is performed to check if the specific areas of the application are working fine after changes.

• Smoke testing is a shallow and...read more

Generate a coupon code based on minimum and maximum amount

• Determine the range of amounts for the coupon code

• Generate a random code within that range

• Assign positive or negative based on the criteria

WDR stands for Wide Dynamic Range. It is a feature in cameras that allows them to capture clear images in both bright and dark areas.

• WDR helps to balance the exposure in different parts of the image

• It is useful in scenarios where there are both bright and dark areas in the same frame

• WDR technology combines multiple images taken at different exposures to create a single well-exposed image

BLC stands for Basic Life Cycle and HLC stands for High Level Cycle.

• BLC refers to the basic stages of a product or system's life cycle, including development, testing, and deployment.

• HLC refers to the higher-level phases of a product or system's life cycle, such as maintenance, updates, and retirement.

• Understanding both BLC and HLC is important for ensuring the successful management of a product or system.

Bitrate is the number of bits processed or transmitted per unit of time.

• Bitrate is commonly used in digital multimedia and telecommunications to measure data transfer rates.

• It is typically measured in bits per second (bps) or kilobits per second (kbps).

• Higher bitrate generally means better quality but also requires more bandwidth.

• For example, a video with a bitrate of 10 Mbps will have higher quality than the same vide

2 MP resolution refers to a camera or display with 2 million pixels.

• 2 MP stands for 2 megapixels

• It means the camera or display has a resolution of 1600 x 1200 pixels

• Higher resolution results in clearer and more detailed images

I am a Software Development Engineer with 5 years of experience in developing web applications using Java, Spring, and Angular.

• 5 years of experience in software development

• Proficient in Java, Spring, and Angular

• Strong problem-solving skills

• Experience in developing web applications

• Good team player

Agile methodologies in B2B projects involve frequent communication, adaptability, and collaboration with stakeholders.

• Agile methodologies in B2B projects prioritize customer collaboration and responding to change over following a strict plan.

• Regular feedback from stakeholders helps in adjusting project scope and priorities in real-time.

• Cross-functional teams work together closely to deliver incremental value to the B2B...read more

I have extensive experience working with barcode scanners in various automation projects.

• Implemented barcode scanning functionality in warehouse management system to track inventory

• Integrated barcode scanners with automated testing tools for regression testing

• Utilized barcode scanners in manufacturing processes to improve efficiency and accuracy