Bel Optronic Devices Manual Testing Interview Questions and Answers

If the cost price of an item is Rs. 150 and the selling price is Rs. 200, what is the profit percentage?

Q1. What is the difference between a stack and a queue? Give an example where you would use each.
Ans. 
A stack is a LIFO data structure while a queue is a FIFO data structure.
• Stack: Last In First Out (LIFO), used in undo/redo functionality, backtracking, and recursion.

• Queue: First In First Out (FIFO), used in job scheduling, breadth-first search, and printing.

• Stack uses push() and pop() operations while queue uses enqueue() and dequeue() operations.
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Q2. What is the difference between a compiler and an interpreter?
Ans. 
A compiler translates the entire program into machine code before execution, while an interpreter translates and executes the program line by line.
• A compiler converts the source code into an executable file, while an interpreter executes the code directly.

• Compilers typically produce faster and more efficient code, while interpreters provide faster development and debugging.

• Examples of compilers include GCC, Clang, and ...read more
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Q3. A compiler is a program that translates the entire source code into machine code before executing it. The source code is fed into the compiler, which analyzes and translates it into an executable file. Thi...read more
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Q1. How do you handle stress and pressure?
Ans. 
I handle stress and pressure by practicing time management, seeking support from colleagues, and maintaining a healthy work-life balance.
• I prioritize tasks and create a schedule to manage my time effectively.

• I communicate with my team and seek their assistance or guidance when needed.

• I engage in stress-relieving activities outside of work, such as exercising or spending time with loved ones.

• I practice mindfulness and d...read more
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3 rounds online, dsa, hr

Q1. Dsa on dp topic
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Q2. Dsa on dp topics
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Coding besed test and dsa base test and programming concepts

C++ coding and web development coding and dsa components

It was online coding test consist of 2 question
One from DP and other graph

One question of DP within in 45 min time constraints

Q1. Floor value of square root of a number
Ans. 
Floor value of square root of a number is the largest integer less than or equal to the square root.
• The floor value of square root of a number can be found using mathematical functions like floor() or integer division.

• For example, the floor value of square root of 16 is 4, as sqrt(16) = 4.

• For non-perfect square numbers, the floor value of square root can be calculated using approximation methods.
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Level was medium to hard

Q1. Technical interview
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Q2. Questions on DSA Cs fundamentals
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Q3. Coding questions
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Q4. Ques on String array
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Q5. To print tree in anticlock wise direction
Ans. 
To print a tree in anticlockwise direction, start from the bottom left and traverse each level from right to left.
• Start from the bottom left of the tree

• Traverse each level from right to left

• Print the nodes as you traverse
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