Wipro Interview Questions, Process, and Tips for Experienced

Q1. What is CAP theorem What is column families What function are used in cassandra what is key value pair
Ans. 
CAP theorem states that in a distributed system, it is impossible to simultaneously guarantee consistency, availability, and partition tolerance.
• CAP theorem: Consistency, Availability, Partition tolerance - pick two

• Column families: A way to organize data in NoSQL databases like Apache Cassandra

• Functions in Cassandra: read, write, delete, update

• Key value pair: Basic data structure where each key is associated with a val
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Q2. What is Cloumn families
Ans. 
Column families are a way to organize related data in a NoSQL database, grouping columns together for efficient retrieval.
• Column families are a way to group related columns together in a NoSQL database.

• They are used in databases like Apache Cassandra to organize data efficiently.

• Column families can contain a large number of columns, each with a unique name and value.

• They are stored together on disk for faster retrieval...read more
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Q3. What are the functions in cassandra
Ans. 
Cassandra functions are used for data manipulation and retrieval in Cassandra database.
• Aggregate functions like COUNT, SUM, AVG, MIN, MAX

• Date and time functions like NOW, DATEOF, UNIXTIMESTAMP

• Mathematical functions like ABS, CEIL, FLOOR, SIN, COS

• String functions like LENGTH, SUBSTRING, CONCAT, LOWER, UPPER
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Q4. Fundamentels of cassandra
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Cassandra is a distributed NoSQL database management system designed for handling large amounts of data across multiple servers.
• Cassandra is a highly scalable and fault-tolerant database system.

• It is based on a distributed architecture, with data spread across multiple nodes.

• Cassandra uses a masterless design, where all nodes are equal and can handle read and write requests.

• It uses a partitioning strategy called consis...read more
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Q5. What is key value pair
Ans. 
Key value pair is a data structure where each key is associated with a corresponding value.
• Key value pairs are commonly used in dictionaries, hash tables, and JSON objects.

• Keys are unique identifiers that are used to access the corresponding values.

• Examples include 'name: John', 'age: 30', 'city: New York'.
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Q1. Explain the database architecture
Ans. 
Database architecture refers to the design and structure of a database system.
• Database architecture includes components like data storage, data retrieval, data manipulation, and security measures.

• It involves the organization of data into tables, columns, and rows.

• Different types of databases have different architectures, such as relational databases, NoSQL databases, and cloud databases.

• Examples of database architectur...read more
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Logical reasoning,profit loss

I dont remember questions but it was quiet easier

Q1. About last previous job
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Q2. What you learned before job
Ans. 
I learned various skills and knowledge through education, internships, and previous work experiences.
• Studied business administration in college

• Completed internships in marketing and finance departments

• Worked as a sales associate at XYZ Company
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Q1. F2F - delayed process basic java question stream coding question to reverse string and get the value with highest length tansient, volatile
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Q2. Aggreagtion vs composition
Ans. 
Aggregation is a 'has-a' relationship where one object contains another object, while composition is a stronger form of aggregation where the child object cannot exist without the parent object.
• Aggregation is a weaker relationship where the child object can exist independently of the parent object.

• Composition is a stronger relationship where the child object is part of the parent object and cannot exist without it.

• Aggr...read more
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Q3. Streams coding question get highest string value
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Q4. Transient keyword
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Q5. Spriingboot, microservices , annotation
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Q1. Oops concept and collections
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Q2. MySql and springBoot
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