ITC Infotech Interview Questions, Process, and Tips

Q1. How do you optimize Stored procedure
Ans. 
Optimizing stored procedures involves using proper indexing, reducing unnecessary loops, and minimizing database calls.
• Use proper indexing on columns used in WHERE clauses to improve query performance

• Avoid using cursors and loops whenever possible, as they can be inefficient

• Minimize the number of database calls by combining multiple queries into a single query or using temporary tables

• Consider using bulk processing tec...read more
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Q2. How do you optimize SQL query
Ans. 
Optimizing SQL queries involves using indexes, minimizing data retrieval, avoiding unnecessary joins, and optimizing query structure.
• Use indexes on columns frequently used in WHERE clauses

• Minimize data retrieval by selecting only necessary columns

• Avoid unnecessary joins by using EXISTS or IN clauses instead

• Optimize query structure by using appropriate join types and conditions
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Q3. What is use of returning clause
Ans. 
Returning clause is used to return a value from a function or procedure in PL/SQL.
• Used to return a single value from a function or procedure

• Can be used to return multiple values using OUT parameters

• Helps in passing values back to the calling program
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Q4. Disadvantages of triggers
Ans. 
Triggers can lead to performance issues, complexity, and potential for unintended consequences.
• Triggers can make code harder to debug and maintain

• They can lead to cascading effects if not carefully implemented

• Performance can be impacted if triggers are not optimized

• Triggers can introduce dependencies between different parts of the codebase
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Q1. Java program to split alpha-numeric values without using the split method
Ans. 
Split alpha-numeric values in Java without using split method
• Iterate through each character in the input string

• Check if the character is a digit or a letter using Character.isDigit() and Character.isLetter() methods

• Create separate strings for digits and letters and store them in an array
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Q2. SQL query to add a new column to a table and the column value should have a default value and never be null
Ans. 
Use ALTER TABLE statement to add a new column with a default value and set it to NOT NULL
• Use ALTER TABLE table_name ADD column_name data_type DEFAULT default_value NOT NULL;

• Example: ALTER TABLE employees ADD hire_date DATE DEFAULT '2022-01-01' NOT NULL;
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Q1. Tell me something about company
Ans. 
Our company is a leading provider of HR solutions, specializing in recruitment, training, and consulting services.
• Founded in 2005 by John Smith

• Headquartered in New York City

• Clients include Fortune 500 companies such as Google and Microsoft

• Offers a wide range of services including talent acquisition, leadership development, and HR technology solutions
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Q1. Tell about yourself
Ans. 
Experienced HR professional with a passion for talent development and employee engagement.
• Over 8 years of experience in HR roles

• Skilled in recruitment, training, and performance management

• Led initiatives to improve employee satisfaction and retention

• Strong communication and interpersonal skills

• Bachelor's degree in Human Resources Management
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Q2. How you know this company
Ans. 
I have been following the company's growth and success in the industry for several years.
• I have been a loyal customer of the company for the past 5 years.

• I regularly read industry news and updates, and this company has been featured multiple times.

• I have friends who work at the company and have shared positive feedback about the work culture.
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Q1. What is you name
Ans. 
My name is John Doe.
• Full name is John Doe

• Common first and last name combination

• Easy to remember and pronounce
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Q2. How long you will abe staying
Ans. 
I plan to stay long-term and grow with the company.
• I am committed to the company's long-term goals and vision.

• I am looking for stability and opportunities for growth within the organization.

• I am excited about the potential to contribute to the company's success over the long term.
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Q1. What is your relevant experience
Ans. 
I have 5 years of experience working with Next.js, building dynamic and responsive web applications.
• 5 years of experience with Next.js

• Proficient in building dynamic and responsive web applications

• Strong understanding of React and JavaScript

• Experience with server-side rendering and API integration

• Portfolio includes projects showcasing Next.js skills
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Q2. How many projects have you worked on nextjs
Ans. 
I have worked on 5 projects using Next.js for building dynamic web applications.
• Developed a company website using Next.js for improved performance and SEO optimization

• Created a blog platform with server-side rendering using Next.js

• Integrated authentication and authorization features using NextAuth.js in an e-commerce project

• Utilized API routes in Next.js to fetch and display data dynamically

• Implemented dynamic routing
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Given an array of numbers. each item is the price of a product per day (key). Find a solution that calculates the best day to sell an item and the best day to buy an item

Q1. Intall Mongo Db and perform crud operation
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Q2. Dsa question asked to complete in javascrip
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