SaaS Labs SDE Interview Questions and Answers

2 easy 1 medium coding questions

Q1. About operating system, python modules , libraries.etc
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Q2. A code to write for some tasks using linked list
Ans. 
Linked list code for tasks
• Create a linked list class

• Implement add, remove, and search methods

• Use the linked list to perform the tasks
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Q1. Managerial Round: Why do you want to switch? what is your main motive? what drives you do be an SDET? How is learning aligned with SDET role? what are the new skills you acquired? Where do you want to be a...read more
Ans. 
I want to switch to SDET role to challenge myself, learn new skills, and contribute to the development of high-quality software.
• I am motivated to switch to an SDET role because I enjoy problem-solving and have a passion for ensuring software quality.

• Being an SDET allows me to work closely with developers, testers, and other stakeholders to create efficient and reliable software.

• Learning is a key aspect of the SDET role...read more
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Q2. What is your notice period?
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Q1. Some networking related questions?
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Q2. How would you test Google Search bar? NAS Storage? SAN storage? e-commerce webisite etc..
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Q3. Two Python Questions; "aabbccrrra" => "a3b2c2r3"
Ans. 
Count consecutive characters in a string and return the count next to the character.
• Iterate through the string and keep track of consecutive characters and their counts.

• Use a dictionary to store the characters and their counts.

• Return the characters and their counts in the desired format.
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Q4. Second Max in the list of repeated integers.
Ans. 
Find the second highest repeated integer in a list.
• Iterate through the list and count the frequency of each integer.

• Sort the frequencies in descending order and return the second highest frequency.

• Handle edge cases like when there is no second highest frequency.
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Q1. Similar questions and Similar Answers. But all from Senior Member.
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Q1. Salary Discussion..
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Q2. Joining Date, Salary Negotiation etc
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Online or offline classes which is better

Q1. Sql and excel and the company is good
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Q1. Design Least recently used cache.
Ans. 
Design a Least Recently Used cache system.
• Implement a doubly linked list to keep track of the order of usage of cache items.

• Use a hashmap to store key-value pairs for quick access to cache items.

• When a new item is accessed, move it to the front of the linked list. If the cache is full, remove the least recently used item from the end of the list.
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A general topic was provided.

Basic aptitude questions.

Q1. Sql and dbms questions
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2 Medium level DSA question

Q1. Mirror binary tree
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Q2. Optimally find n^m
Ans. 
Use the exponentiation by squaring algorithm to optimally find n^m.
• Use the exponentiation by squaring algorithm to reduce the number of multiplications needed.

• Divide the exponent by 2 and recursively calculate the result.

• Handle the cases when the exponent is even or odd separately.

• Example: n^5 = n * n^2 * n^2
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Q1. Edit distance problem
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The edit distance problem involves finding the minimum number of operations required to transform one string into another.
• The edit distance problem can be solved using dynamic programming.

• Common operations include insertion, deletion, and substitution of characters.

• Example: Given strings 'kitten' and 'sitting', the edit distance is 3 (substitute 'k' with 's', insert 'g', substitute 'n' with 'g').
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Q2. Light switch puzzle
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