Quantizer Research Interview Questions and Answers

Q1. Diff between react and jQuery
Ans. 
React is a modern JavaScript library for building user interfaces, while jQuery is a fast and concise JavaScript library for DOM manipulation.
• React is component-based, promoting reusability and modularity.

• React uses a virtual DOM for efficient updates, while jQuery directly manipulates the DOM.

• React is declarative, making it easier to reason about the UI, while jQuery is imperative.

• React is typically used for single-pa...read more
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3 dsa questions medium level

Q1. 2 medium level dp questions based on string and stocks
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Q2. One hard question based on graph
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Q1. Hr questions and java , springboot questions etc
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Q1. How will you prioritize testing ?
Ans. 
I prioritize testing based on criticality, impact, dependencies, and risks involved.
• Identify critical functionalities and prioritize testing for them first

• Consider impact on end users and prioritize testing for high impact areas

• Take into account dependencies between different modules or components

• Assess risks involved and prioritize testing for high-risk areas

• Use risk-based testing approach to prioritize test cases
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Q2. Test cases for Landline
Ans. 
Test cases for Landline phone functionality
• Test dialing a number and making a call

• Test receiving a call and answering it

• Test call waiting functionality

• Test call forwarding feature

• Test voicemail functionality
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Q1. SQL question on joins and subqueries?
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Q2. Earlier project questions ?
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Q1. What is your method of working
Ans. 
My method of working is organized, efficient, and detail-oriented.
• I prioritize tasks based on deadlines and importance

• I create detailed to-do lists and schedules to stay on track

• I regularly communicate with team members to ensure everyone is on the same page
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Q2. What payment are you demanding?
Ans. 
The payment being demanded depends on the outstanding balance and payment terms.
• The payment being demanded should be based on the outstanding balance owed by the debtor.

• Consider the payment terms agreed upon by both parties when determining the payment to be demanded.

• It is important to communicate clearly and professionally with the debtor regarding the payment being demanded.

• Provide options for payment plans or negoti...read more
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Q1. Number of Islands leetcode
Ans. 
Count the number of islands in a 2D grid of '1's and '0's.
• Iterate through the grid and for each '1' encountered, perform a depth-first search to mark all connected '1's as visited.

• Increment the island count for each unvisited '1' encountered during the iteration.

• Example: Input grid = [['1','1','0','0'],['1','1','0','0'],['0','0','1','0'],['0','0','0','1']], Output = 3
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Q2. SQL queries based on group by
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Q3. Resume questions
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Hackerearth Coding Test

Q1. Technical Round with Senior Software Engineer around Java, DSA and APIs
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Q2. 1. Check Valid Parenthesis, 2. Given a problem design your own API and suitable URL for it Discussions about implementation and designing of the above two questions
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Q1. One-on-one round with Project manager
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Q2. Architecture and System design round, but interviewer given me Java Coding , some basic question and asked some questions on SQL then in the middle of the interview he told that we are not going forward wi...read more
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