Intellect Design Arena Interview Questions, Process, and Tips

Q1. Spring boot end to end , Websevices, Microservices.
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Q2. Java 8 Features and some SQL queries.
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Q1. Previous Project Architecture and what you contribute in that project.
Ans. 
Designed a scalable microservices architecture for a web application, focusing on performance and reliability.
• Led the design and implementation of the service-oriented architecture

• Utilized Docker containers for easy deployment and scalability

• Implemented load balancing and caching strategies for improved performance

• Contributed to the development of RESTful APIs for seamless communication between services
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Q2. Kafka related questions and SQL based query.Program that you need to write using Java 8 Features.
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Working at client side experience and troubleshooting

Q1. Payments types in Banking
Ans. 
Various payment types used in banking include cash, checks, wire transfers, credit/debit cards, and online/mobile payments.
• Cash: Physical currency used for transactions.

• Checks: Written orders to pay a specific amount from one account to another.

• Wire Transfers: Electronic transfer of funds between banks.

• Credit/Debit Cards: Plastic cards used to make payments.

• Online/Mobile Payments: Transactions made through internet or
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Q2. Customer onboarding process
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Q3. SQLdatabase testing
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Q4. Java and Selenium automation tools specific
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Q5. Document analyticsand scripts ,Test case preparation
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Q1. Difference between hashset and hashtable
Ans. 
HashSet is an unordered collection of unique elements, while Hashtable is a synchronized collection of key/value pairs.
• HashSet does not allow duplicate elements, while Hashtable does not allow duplicate keys.

• HashSet does not maintain insertion order, while Hashtable does not guarantee any order.

• HashSet allows null values, while Hashtable does not allow null keys or values.
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Q2. Collection vs Collections
Ans. 
Collection is an interface in Java that represents a group of objects, while Collections is a utility class that contains static methods for operating on collections.
• Collection is an interface in Java that represents a group of objects.

• Collections is a utility class in Java that contains static methods for operating on collections.

• Example: List list = new ArrayList<>(); Collection collection = list;

• Example: Collections
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Q1. SQL query related questions
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Q2. Write a Java program to find the duplicate in Array
Ans. 
Java program to find duplicates in an array of strings
• Create a HashSet to store unique elements

• Iterate through the array and check if element is already in the HashSet

• If element is already in the HashSet, it is a duplicate
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Q1. Questions on stream api
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Q2. Collection related questions
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Q1. Collection related questions
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Q2. Mysql questions
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Q1. Family background
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Q2. Salary negotiations
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Q1. Basic Questions, Data types, Promises
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Q2. Event loop, and other js concepts
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Q1. Comparable and comparator
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Q2. Instance and local variable
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Q3. Abstract and interface
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Q4. Constructor and Methods
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Q5. Http methods like post,get,put,delete
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Q1. Baaic linix commands
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Q2. Basix sql questions of joins
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Q3. Mkdir command used for
Ans. 
Mkdir command is used to create a new directory in a file system.
• Used to create a new directory in a specified location

• Syntax: mkdir [directory_name]

• Can create multiple directories at once using mkdir -p

• Example: mkdir new_directory
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Q4. Sql joinsnlike cross join
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Q5. Given one query ams asked the output
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