Brakes India Development Engineer Interview Questions and Answers

Q1. Memory hierarchy in OS
Ans. 
Memory hierarchy in OS refers to the organization of different types of memory in a computer system.
• Memory hierarchy typically includes registers, cache memory, main memory (RAM), and secondary storage (hard drive, SSD).

• Registers are the fastest and smallest type of memory, located within the CPU.

• Cache memory is a small, fast memory located between the CPU and main memory, used to store frequently accessed data.

• Main me...read more
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Q2. Explain memory leak.
Ans. 
Memory leak is a situation where a program fails to release memory it has allocated, leading to a gradual loss of available memory.
• Memory leaks occur when a program allocates memory but does not release it when it is no longer needed.

• This can lead to a gradual decrease in available memory, eventually causing the program or system to crash.

• Common causes of memory leaks include improper management of dynamic memory alloc...read more
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Q1. Insertion sort implement in c++
Ans. 
Insertion sort is a simple sorting algorithm that builds the final sorted array one item at a time.
• Start from the second element and compare it with the elements before it to find the correct position.

• Repeat this process for all elements in the array.

• Time complexity is O(n^2) in the worst case scenario.

• Example: void insertionSort(string arr[], int n) { for (int i = 1; i < n; i++) { string key = arr[i]; int j = i - 1; w
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Q2. Matrix chain multiplication DSA problem
Ans. 
Matrix chain multiplication is a dynamic programming problem to find the most efficient way to multiply a given sequence of matrices.
• Use dynamic programming to solve this problem efficiently.

• Create a 2D array to store the minimum number of multiplications needed to multiply matrices.

• Iterate over different combinations of matrices to find the optimal solution.

• Example: For matrices A, B, C with dimensions 10x30, 30x5, 5x
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Q3. Explain project
Ans. 
Developed a web application for tracking project progress and managing tasks
• Used React.js for front-end development

• Implemented RESTful APIs using Node.js and Express for back-end

• Utilized MongoDB for database storage
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Q1. Hell about your self.
Ans. 
I am a software development engineer with 5 years of experience in building scalable web applications.
• 5 years of experience in software development

• Proficient in building scalable web applications

• Strong knowledge of programming languages such as Java, Python, and JavaScript
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Q2. Why you want to join this company.
Ans. 
I am impressed by the company's innovative projects and collaborative work culture.
• Innovative projects in AI and machine learning excite me

• Positive reviews from current employees about the work environment

• Opportunities for growth and learning in a supportive team
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What is percentage.
Define the mixture question

Q1. Sale a pen in what manners
Ans. 
This pen is a must-have for anyone who needs to write on a daily basis.
• Highlight the pen's smooth writing experience

• Emphasize the pen's durability and long-lasting ink

• Mention the pen's sleek and professional design

• Offer a special promotion or discount to incentivize purchase
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Q2. When a vehicle climbing on the way,which are the forces acts upon
Ans. 
The forces acting upon a vehicle climbing a way are gravity, friction, and air resistance.
• Gravity pulls the vehicle and its contents towards the center of the earth.

• Friction between the tires and the road surface provides the necessary traction for the vehicle to climb.

• Air resistance opposes the forward motion of the vehicle, making it harder to climb.

• The weight of the vehicle and its contents also affects the ability ...read more
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Q3. Related mechanical questions like how petrol and engines works
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Q4. What type of electricity generated through turbines.
Ans. 
Electricity generated through turbines is typically produced by steam or water power.
• Turbines are used to convert the kinetic energy of steam or water into mechanical energy.

• This mechanical energy is then used to generate electricity through a generator.

• Steam turbines are commonly used in thermal power plants, while water turbines are used in hydroelectric power plants.

• Gas turbines are also used to generate electricity...read more
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Q1. About GD & T symbols and know about instruments how to use that.
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About aptitude test u known about technical skills and general knowledge

Q1. About experience and fully detailed about yours
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