Newton School: Pay after Placement Intern Interview Questions and Answers

Asked tree, dp and binary search problem

Q1. All basics of java, sql , javascript
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Q1. What is Vlookup and Hlookup
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It was good. some mcq questions were there

It was a coding problem , medium level . required to solve with pandas

SQL and Python basics are the must checkups. My go-to website for preparation was Edureka and Simplilearn.

Q1. Write a python code to check if the given sentence is palindrome or not
Ans. 
Python code to check if a sentence is palindrome or not
• Remove all spaces and convert to lowercase

• Reverse the string and compare with original

• If both are same, then it is a palindrome
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Q2. Write 3 queries for the given circumstances (I can't exactly remember the questions)
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Q1. Basic DSA problem and SQL based questions
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Q2. What is Indexing in database
Ans. 
Indexing is a technique used to improve the performance of database queries by creating a data structure that allows for faster data retrieval.
• Indexing involves creating a separate data structure that contains a subset of the data in the database, organized in a way that makes it easier to search and retrieve.

• Indexes can be created on one or more columns in a table, and can be either clustered or non-clustered.

• Clustere...read more
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Q3. Basic concepts of unique keys
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Q1. DSA problem to print prime number using recursion
Ans. 
Print prime numbers using recursion
• Define a recursive function that takes a number as input

• Check if the number is prime or not

• If it is prime, print it and call the function again with the next number

• If it is not prime, call the function again with the next number

• Stop the recursion when the desired number of prime numbers have been printed
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Q1. Tell me one incident where you failed to complete your task
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Asked tree, dp and binary search problem

Q1. All basics of java, sql , javascript
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Q1. What is difference between delete,drop and truncate. ?
Ans. 
Delete removes specific rows from a table, drop removes entire table structure, and truncate removes all rows from a table.
• Delete is a DML command, drop is a DDL command, and truncate is a DDL command.

• Delete can be rolled back, drop cannot be rolled back, and truncate cannot be rolled back.

• Delete triggers delete triggers, drop triggers drop triggers, and truncate does not trigger any triggers.

• Example: DELETE FROM table...read more
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Q1. What are iterrators .?
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Iterators are objects that allow sequential access to elements in a collection.
• Iterators are used to loop through elements in a collection one at a time.

• They provide a way to access elements without exposing the underlying data structure.

• Iterators have methods like next() to retrieve the next element in the collection.

• Examples of iterators include Python's iter() and Java's Iterator interface.
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