Cognizant Associate Interview Questions, Process, and Tips for Experienced

React is a JavaScript library for building user interfaces.

• React uses a virtual DOM for better performance.

• Components are the building blocks of React applications.

• React allows for uni-directional data flow.

• React supports server-side rendering for SEO optimization.

Clustered index physically reorders the data on disk, while non-clustered index creates a separate structure.

• Clustered index determines the physical order of data rows in a table, while non-clustered index does not.

• Clustered index is faster for retrieval of large ranges of data, while non-clustered index is faster for retrieval of individual rows.

• A table can have only one clustered index, but multiple non-clustered ind...read more

Use SQL queries to remove duplicate records from a database table.

• Use the DISTINCT keyword in SELECT statement to retrieve unique records.

• Use the GROUP BY clause to group records based on specific columns.

• Use the ROW_NUMBER() function to assign a unique row number to each record and then filter out duplicates.

Handle leave requests by following company policy, communicating with team members, and ensuring coverage.

• Refer to company policy for leave request procedures

• Communicate with team members to ensure coverage during absence

• Document leave requests and approvals for record keeping

To deliver projects on time, it is important to set clear timelines, prioritize tasks, communicate effectively, and regularly monitor progress.

• Set clear project timelines and deadlines

• Prioritize tasks based on importance and urgency

• Communicate effectively with team members and stakeholders

• Regularly monitor progress and make adjustments as needed

A hashmap uses key-value pairs for efficient data retrieval, leveraging hashing for quick access.

• Hash Function: Converts keys into hash codes, e.g., key 'apple' might hash to 5.

• Buckets: Store entries in an array, e.g., index 5 might hold ('apple', value).

• Collision Handling: Uses chaining (linked lists) or open addressing to resolve collisions.

• Load Factor: Determines when to resize the hashmap, typically around 0.75.

• Res...read more

Observables are data streams that can be subscribed to, allowing for asynchronous programming and handling of multiple values over time.

• Observables are part of the RxJS library in JavaScript, commonly used in Angular applications.

• They can emit multiple values over time, including errors and completion signals.

• Advantages include easier handling of asynchronous operations, better error handling, and support for operators

I am a dedicated and hardworking individual with a passion for learning and growth.

• I have a strong work ethic and always strive to exceed expectations.

• I am a quick learner and adapt well to new environments.

• I have experience in project management and team collaboration.

• I am proficient in various software programs such as Microsoft Office and Adobe Creative Suite.

I have a Bachelor's degree in Business Administration and 5 years of experience in marketing.

• Bachelor's degree in Business Administration

• 5 years of experience in marketing

I have strong communication skills, attention to detail, and problem-solving abilities.

• Strong communication skills - able to effectively convey information and ideas

• Attention to detail - meticulous in reviewing work for accuracy

• Problem-solving abilities - skilled at analyzing situations and finding solutions

• Example: Led a team project where I communicated tasks clearly, paid attention to details in the project plan, an