Pandora Analytics Ionic Developer Interview Questions and Answers

Had 50 qsns in 45 min

Had 5 qsns to execute topics like tress and graphs

Q1. Sql queries and how to extract the data
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Q2. Oops concepts and their execution
Ans. 
Oops concepts are fundamental principles of object-oriented programming that help in organizing and designing code efficiently.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: Ability of objects to take on multiple forms or have multiple behaviors.

• Abstraction: Hiding the complex ...read more
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Q1. Communication mode in chat app
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Real-time communication using text, audio, and video in a chat application.
• Text chat for quick messages

• Audio chat for voice communication

• Video chat for face-to-face interaction
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Q2. Consistency level in different scenarios
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Consistency level refers to the level of agreement between data replicas in a distributed system.
• Consistency levels include strong consistency, eventual consistency, and eventual consistency with causal consistency.

• Strong consistency ensures that all reads and writes are immediately visible to all nodes in the system.

• Eventual consistency allows for temporary inconsistencies between replicas, which are eventually resolv...read more
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Q1. Resume shortlist
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5 coding questions (4 medium and 1 easy) on coderbyte.

Q1. Questions about previous jobs/internships and other HR-related questions.
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Q1. Based on the skills mentioned in my resume, and questions based on the project mentioned (the Interviewer asked to open my GitHub profile and asked questions on code written).
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Coding test duration is 30 to 40 min
on paper pen and topic is simple like related to string,pattern and number's

Q1. Introduction about yourself
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Q2. Salary expectation
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Q1. Related to the basic of html css and js
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Q2. Ask run time short code and explanation
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Q1. About yourself and other
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Q2. All about company your expectation and salary disscuced
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Q1. Strecture of sql statement
Ans. 
SQL statements are used to interact with databases by performing operations like querying, updating, and deleting data.
• SQL statements are made up of keywords like SELECT, INSERT, UPDATE, DELETE, etc.

• They are structured in a specific order, with clauses like WHERE, ORDER BY, GROUP BY, etc.

• Tables are referenced using their names, and conditions are specified to filter data.

• Joins can be used to combine data from multiple
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Dsa with medium leetcode questions

Q1. Lru cache with optimisation
Ans. 
Implementing an LRU cache with optimization techniques for efficient data storage and retrieval.
• Use a doubly linked list to keep track of the most recently used items

• Implement a hash map for fast lookups and updates

• Optimize by using a combination of both data structures for efficient cache management
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30 mintues, relationship topics

Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Why should we hire you?
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Q4. What are your strengths and weaknesses?
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Q5. Tell me about yourself.
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