Amazon Software Developer Interview Questions, Process, and Tips

2 medium DS algo questions was there

Q1. Technical rounds 1
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Q2. Cs fundamental and behavioral questions
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Q3. What is Dbms required??
Ans. 
A Database Management System (DBMS) is required to manage and organize data efficiently in a structured manner.
• DBMS is required to create, update, retrieve, and manage data in databases.

• It provides a way to define, create, and manipulate databases.

• DBMS ensures data integrity, security, and consistency.

• Examples of popular DBMS include MySQL, Oracle, SQL Server, and PostgreSQL.
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Q4. Why Os is required??
Ans. 
Operating system (OS) is required to manage hardware resources, provide user interface, and run applications efficiently.
• Manages hardware resources such as CPU, memory, and storage

• Provides user interface for users to interact with the computer

• Runs applications and manages processes efficiently

• Ensures security and protection of data

• Facilitates communication between hardware and software components
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Q5. What do you mean by belady's anomaly??
Ans. 
Belady's anomaly is a phenomenon in which increasing the number of frames in a page table may increase the number of page faults.
• Belady's anomaly occurs when increasing the number of frames in a page table leads to more page faults.

• It contradicts the common belief that more frames always lead to better performance.

• This anomaly is more likely to occur in algorithms like FIFO (First In, First Out).
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2 question, one related to prefix sum and another related to something that i dont remember

There were three coding questions related to graphs and dynamic programming.

CoderPad test featuring LeetCode medium-level challenges.

Standard ds algo questions. Practice with Neetcode 150

Q1. When will be the all the tomatoes be rotten in 2D grid
Ans. 
The tomatoes will be rotten when all adjacent tomatoes are rotten as well.
• Check each tomato in the grid and if it is rotten, check if all adjacent tomatoes are also rotten

• Repeat this process until no more tomatoes can be marked as rotten

• The process will continue until all tomatoes are rotten or no more tomatoes can be marked as rotten
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Coding about data structure