XpressBees Software Development Engineer Interview Questions and Answers

DSA questions:
1. Replace array of 1s and 0s with 0s in all rows and cols
2. Kandane's algo question

Q1. What is db cluster
Ans. 
A db cluster is a group of databases that work together to provide high availability and scalability.
• Consists of multiple database instances working together

• Provides redundancy and fault tolerance

• Allows for load balancing and scaling

• Examples: Amazon Aurora, Google Cloud Spanner
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Q2. Java collections, filters vs interceptors
Ans. 
Filters and interceptors are used in Java collections to manipulate or control the flow of data.
• Filters are used to selectively include or exclude elements from a collection based on certain criteria.

• Interceptors are used to perform actions before or after certain operations on a collection.

• Examples: Java 8 Stream API filters, Servlet filters for HTTP requests, Hibernate interceptors for database operations.
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Q1. Number of Nodes in the sub-Tree with the same label
Ans. 
Count the number of nodes in a sub-tree with the same label.
• Traverse the tree using depth-first search (DFS)

• Keep track of the count of nodes with the same label in each sub-tree

• Return the count for each sub-tree
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Q1. Why should we hire you
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Q2. Do you know cooking
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Q3. How efficient are you in cooking
Ans. 
I am fairly efficient in cooking and enjoy experimenting with new recipes.
• I can follow recipes accurately and efficiently

• I am good at multitasking in the kitchen

• I enjoy trying new ingredients and techniques

• I can cook a variety of cuisines, from Italian to Asian to Mexican

• I am comfortable using kitchen appliances and tools
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Q4. What you like to make
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