Xad Technologies LLC Intern Interview Questions and Answers

Normal level questions, 20 questions were there and they were little lengthy

Q1. What are different types of transactions in SQL
Ans. 
Different types of transactions in SQL include DML, DDL, DCL, and TCL.
• DML (Data Manipulation Language) - Used for manipulating data in a database (e.g. INSERT, UPDATE, DELETE)

• DDL (Data Definition Language) - Used for defining database schema (e.g. CREATE, ALTER, DROP)

• DCL (Data Control Language) - Used for controlling access to data (e.g. GRANT, REVOKE)

• TCL (Transaction Control Language) - Used for managing transactions
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Q2. Difference between truncate and delete
Ans. 
Truncate is a DDL command that removes all rows from a table, while delete is a DML command that removes specific rows.
• Truncate is faster and uses less system resources compared to delete.

• Truncate resets the identity seed of the table, while delete does not.

• Truncate cannot be rolled back, while delete can be rolled back using a transaction.

• Truncate does not fire triggers, while delete does.

• Truncate is not logged in the
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1 hour test contains 2 coding questions.

Q1. Delete a node from Singly and doubly linked list
Ans. 
To delete a node from a singly or doubly linked list, update the pointers of the previous and next nodes.
• For a singly linked list, update the next pointer of the previous node to skip the node to be deleted.

• For a doubly linked list, update the next pointer of the previous node and the previous pointer of the next node to skip the node to be deleted.
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Q2. Validate an email using regex pattern
Ans. 
Use regex pattern to validate an email address
• Use regex pattern /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/

• Ensure email has valid format with username, @ symbol, domain, and top-level domain

• Test regex pattern against different email addresses for validation
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Q1. What is thermal engineering
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Q1. Introduce yourself to us
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Leetcode question , gfg also

Q1. Tell us about your self
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Q2. Explain this project
Ans. 
The project involved developing a mobile application for tracking daily water intake.
• Developed a user-friendly interface for inputting water consumption

• Implemented a feature to set daily water intake goals

• Integrated notifications to remind users to drink water throughout the day
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Q1. Tell me about your self
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Q2. Mission vision of the company
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Q3. Agrement and relocation
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It was easy. It was basic question.

It was a bit diff as everyone was a bit aggressive

Q1. It was long and difficult.
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Q2. Tel about all ml algo
Ans. 
Machine learning algorithms are used to analyze data, make predictions, and automate decision-making processes.
• ML algorithms can be categorized into supervised, unsupervised, and reinforcement learning.

• Examples of ML algorithms include linear regression, decision trees, support vector machines, k-means clustering, and neural networks.

• ML algorithms require labeled data for supervised learning and can learn patterns from
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Q1. What is your name ?, What is your qualifications? , What is your current location?, Where do you belonge from?, why you want to do job ?, Why you choose this company to do job ?, What aspect about sallar...read more
Ans. 
Interview questions and answers
• My name is [Name].

• I have completed my [Qualifications] from [University/Institute].

• I am currently located in [Current Location].

• I belong to [Hometown/City].

• I am interested in this job because [Reasons].

• I chose this company because [Reasons].

• Salary is an important aspect for me, but not the only one.
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Q2. Why you choose this company to do work ?, What aspect about sallry ?
Ans. 
I chose this company because of its reputation for innovation and growth. The salary offered is competitive and fair.
• The company has a strong track record of developing cutting-edge technology

• I am impressed by the company's commitment to employee growth and development

• The salary offered is in line with industry standards and reflects my experience and qualifications
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Q3. What is your current locatuon? My current location is Varanasi, Lanka, Uttar Pradesh
Ans. 
I am currently located in Varanasi, Lanka, Uttar Pradesh.
• I am residing in the historic city of Varanasi, also known as Kashi.

• Lanka is a locality within Varanasi, situated on the banks of the river Ganges.

• Uttar Pradesh is a state in northern India, known for its rich cultural heritage.
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Q4. What is your highest qualification ?
Ans. 
I have a Master's degree in Computer Science.
• Master's degree in Computer Science

• GPA of 3.8

• Thesis on Machine Learning

• Internship at Google
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Q5. Where do you belong from?
Ans. 
I belong to India, a diverse and culturally rich country.
• I was born and brought up in a small town in the northern part of India.

• India is known for its diverse culture, languages, and traditions.

• I have traveled to different parts of India and have experienced the beauty of its landscapes and people.

• I am proud to be a part of a country that has a rich history and is constantly evolving.
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Q6. Why you want to do job ?
Ans. 
I want to do a job to gain experience, learn new skills, and contribute to the growth of the company.
• I am eager to learn and grow professionally

• I want to contribute my skills and knowledge to the company

• I am excited about the opportunity to work with a team

• I am motivated by the prospect of financial stability and security
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