McAfee UI Developer Interview Questions and Answers for Experienced

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Q1. What is use of constructors in Js
Ans. 
Constructors in JavaScript are used to create and initialize objects.
• Constructors are functions that are used to create new instances of objects.

• They are called with the 'new' keyword to create a new object based on the constructor's blueprint.

• They can also be used to set initial values or properties for the object being created.

• Example: function Person(name, age) { this.name = name; this.age = age; }

• Example: var perso
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Uging tag , elements, div, selector, flex box etc

Q1. Html, CSS, JavaScript, bootstrap
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Q2. Good knowledge for html CS
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Q3. Bootstrap using responsible website
Ans. 
Bootstrap is a front-end framework that helps in creating responsive websites by using a grid system and predefined classes.
• Bootstrap provides a grid system with 12 columns that automatically adjusts based on screen size.

• It includes responsive utility classes like 'd-none' and 'd-md-block' to show/hide content based on screen size.

• Bootstrap also offers responsive navigation components like the navbar that collapses int
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Q4. Anything else any more times
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Basic maths questions select answer from four question

Tge interview held on call basic

Figma then convert it into html

Q1. What are the basic concepts of UI/UX design and development?
Ans. 
UI/UX design focuses on enhancing user satisfaction through effective design and usability principles.
• User-Centered Design: Prioritizing user needs and preferences in the design process. Example: Conducting user interviews.

• Usability: Ensuring the product is easy to use. Example: Simplifying navigation in a mobile app.

• Accessibility: Designing for users with disabilities. Example: Using alt text for images.

• Visual Hierarc...read more
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Q2. Could you provide a brief overview of your previous company roles, responsibilities, and the details of the projects you have worked on?
Ans. 
I have worked as a UI Developer focusing on responsive design, user experience, and collaboration with cross-functional teams.
• Developed user interfaces for web applications using HTML, CSS, and JavaScript frameworks like React and Angular.

• Collaborated with UX designers to create wireframes and prototypes, ensuring a seamless user experience.

• Implemented responsive design principles to ensure applications are mobile-frie...read more
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Round duration - 60 minutes
Round difficulty - Easy

This was a technical round with questions on DBMS.

Q1. What is data integrity?
Ans. 
Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle.
• Data integrity ensures that data is accurate and consistent in storage and transmission.

• It involves maintaining the quality and reliability of data over time.

• Methods for ensuring data integrity include checksums, encryption, and error detection codes.

• Examples of data integrity violations include data corruption, unautho
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Q2. What is a trigger in the context of a database management system?
Ans. 
A trigger is a special type of stored procedure that automatically executes when certain events occur in a database.
• Triggers are used to enforce business rules, maintain data integrity, and automate repetitive tasks.

• They can be triggered by INSERT, UPDATE, or DELETE operations on a table.

• Examples of triggers include auditing changes to a table, updating related tables when a record is modified, or enforcing referential
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Q3. What is the difference between clustered and non-clustered indexes in a database management system?
Ans. 
Clustered indexes physically order the data in the table, while non-clustered indexes do not.
• Clustered indexes determine the physical order of data in the table, while non-clustered indexes do not.

• A table can have only one clustered index, but multiple non-clustered indexes.

• Clustered indexes are faster for retrieval of data, especially range queries, compared to non-clustered indexes.

• Non-clustered indexes are stored se...read more
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Round duration - 60 minutes
Round difficulty - Easy

Technical interview round with questions on DBMS.

Q1. What is the difference between UNION and UNION ALL in SQL?
Ans. 
UNION combines and removes duplicates, UNION ALL combines without removing duplicates.
• UNION merges the result sets of two or more SELECT statements and removes duplicates.

• UNION ALL merges the result sets of two or more SELECT statements without removing duplicates.

• UNION is slower than UNION ALL as it involves removing duplicates.

• Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

• Example: SELECT column...read more
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Q2. What are the functions of a cursor in PL/SQL?
Ans. 
A cursor in PL/SQL is used to retrieve and process multiple rows of data one at a time.
• Allows iteration over a result set

• Retrieves data row by row

• Can be used to update or delete rows in a table

• Must be declared, opened, fetched, and closed
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Q3. Write a SQL query to fetch the nth highest salary from a table.
Ans. 
SQL query to fetch the nth highest salary from a table
• Use the ORDER BY clause to sort salaries in descending order

• Use the LIMIT clause to fetch the nth highest salary
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Round duration - 30 minutes
Round difficulty - Easy

This was a managerial round with typical behavioral problems.