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Western Digital SDE (Software Development Engineer) Interview Questions and Answers
Western Digital SDE (Software Development Engineer) Interview Experiences
1 interview found
I applied via Campus Placement and was interviewed in Jun 2021. There were 4 interview rounds.
Interview Questionnaire
5 Questions
- Q1. 1) Tell me about yourself.
- Q2. 2) 4 pillars of oops concept.
- Ans.
4 pillars of OOPs: Abstraction, Encapsulation, Inheritance, Polymorphism.
Abstraction: Hiding implementation details and showing only necessary information.
Encapsulation: Binding data and functions together and restricting access to them.
Inheritance: Creating new classes from existing ones, inheriting properties and methods.
Polymorphism: Ability of objects to take on multiple forms or behaviors.
- Q3. 3) implement queue using stack
- Ans.
Implement a queue using stack
Use two stacks, one for enqueue and one for dequeue
When dequeue is called, pop all elements from enqueue stack and push to dequeue stack
Then pop from dequeue stack to get the first element added to the queue
When enqueue is called, simply push the element to enqueue stack
- Q4. 4)Merge sort
- Q5. 5) Dynamic programming question
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
SDE (Software Development Engineer) Interview Questions & Answers
Samsung Research
Anonymous
posted on 30 Jun 2022
I applied via Naukri.com and was interviewed in Jun 2022. There were 4 interview rounds.
(2 Questions)
- Q1. Coding question max sum subarray- DP
- Q2. Clone graph - coding
(2 Questions)
- Q1. Dp- grid problem- max no of coins picked and basic android development questions
- Q2. Project based questions
(1 Question)
- Q1. Basic hr questions such are why you want to join our organization
Interview Preparation Tips
SDE (Software Development Engineer) Interview Questions & Answers
Samsung Research
Anonymous
posted on 15 Nov 2021
I applied via Hackerearth contest and was interviewed in Oct 2021. There was 1 interview round.
Interview Questionnaire
4 Questions
- Q1. Reverse a linked list
- Ans.
Reverse a linked list
Iterate through the linked list and change the direction of the pointers
Use three pointers to keep track of the current, previous, and next nodes
Make sure to update the head and tail pointers accordingly
- Q2. Swap 2 numbers without using a third variable
- Ans.
Swap 2 numbers without using a third variable
Use the XOR operation to swap the numbers
Assign the first number to the second number using XOR
Assign the second number to the first number using XOR
- Q3. Height of a binary tree
- Ans.
Height of a binary tree is the maximum number of edges from the root node to any leaf node.
The height of an empty tree is 0.
The height of a tree with only one node is 1.
The height of a tree can be calculated recursively by finding the height of its left and right subtrees and adding 1 to the maximum of the two heights.
The time complexity of finding the height of a binary tree is O(n), where n is the number of nodes in
- Q4. Sum queries on a 2D matrix
- Ans.
Sum queries on a 2D matrix
Iterate through each query and calculate the sum of elements in the given range
Use prefix sum technique to optimize the solution
Preprocess the matrix to store the sum of elements in each row and column for faster calculation
Interview Preparation Tips
Skills evaluated in this interview
SDE (Software Development Engineer) Interview Questions & Answers
Samsung Research
Anonymous
posted on 23 Sep 2022
I applied via LinkedIn and was interviewed before Sep 2021. There were 2 interview rounds.
Easy tree questions from basic DSA sheets
(1 Question)
- Q1. Tree question from DSA sheet
Interview Preparation Tips
- Binary tree
Abhishek Bandejia
Interview Questionnaire
2 Questions
- Q1. Coding questions on data structures and oops
- Q2. Various questions on cv, projects, por's, etc
Interview Preparation Tips
Experience: Questions were normal like any other aptitude or coding tests.
Tips: Time given was enough for other sections but you need to hurry a little in aptitude part.
Duration: 60 minutes
Total Questions: 60
Round: Technical Interview
Experience: The questions were basic, some where well known like reversing a link list using recursion, designing of car parking lot using concept of oops, find tree height/diameter, etc.
Tips: 1. They ask you to write complete code on paper. This sometimes turn out to be a challenging task when you don't have compiler to correct you on basic things. Practice writing codes on paper.
2. They surely ask questions on oops, like polymorphism, inheritance, etc. besides their definition, also practice writing sudo codes to explain them
Round: HR Interview
Experience: Mainly i was asked questions on my internship experience and POR's.
Tips: They will try to grill you on some questions like 'Why we should hire you?', have a clear reason in your mind. Your other answers should not contradict with your reasons
General Tips: I don't know about other colleges but HP recruits small number of students from my university. Coding questions were average level and can easily be tackled. Many students were rejected after HR interview so don't take it lightly. They do grill you in a very good style if they are in doubt about your selection
Skills: willingness, Enthusiasm, Coding skills, Aptitude skills
College Name: IIT Guwahati
Interview Questionnaire
1 Question
- Q1. Stge concepts, vSAN, RAID, basic testing, OS concepts, NVMe, SATA, SAS
Interview Questionnaire
1 Question
- Q1. All technical questions raised
I applied via Walk-in and was interviewed before Aug 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. About my last job description
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Oct 2021. There were 2 interview rounds.
They ask to many technical question and ask to code also
They ask for your background and thing you learnt in your past
Interview Preparation Tips
Selected
I applied via Approached by Company and was interviewed before Jun 2022. There were 5 interview rounds.
(3 Questions)
- Q1. Questiones based on past experience and projects
- Q2. Reason for switching the job
- Q3. Knowledge of CAD softwares
(7 Questions)
- Q1. What is sub cooling in air conditioning?
- Ans.
Sub cooling in air conditioning is the process of cooling the refrigerant below its saturation temperature to improve system efficiency.
Sub cooling increases the efficiency of the air conditioning system by ensuring the refrigerant is in a liquid state before entering the expansion valve.
It helps in preventing flash evaporation of the refrigerant, which can lead to inefficiencies in the system.
Sub cooling is typically ...
- Q2. How is ISEER rating calculated
- Ans.
ISEER rating is calculated based on the weighted average of the cooling performance of an air conditioner under different conditions.
ISEER = (Weighted Cooling Capacity at 100% load x 0.4) + (Weighted Cooling Capacity at 75% load x 0.2) + (Weighted Cooling Capacity at 50% load x 0.4)
The higher the ISEER rating, the more energy efficient the air conditioner is.
ISEER rating helps consumers compare the energy efficiency of...
- Q3. Draw the Refrigeration cycle
- Ans.
The refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature to a high temperature environment.
The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.
The refrigerant enters the compressor as a low-pressure gas and leaves as a high-pressure, high-temperature gas.
The high-pressure gas then flows into...
- Q4. Mainstream refrigerants used in household air conditioning
- Ans.
Mainstream refrigerants used in household air conditioning include R-410A, R-22, and R-134a.
R-410A is a popular refrigerant known for its high efficiency and environmental friendliness.
R-22, although being phased out due to its ozone-depleting properties, is still commonly found in older air conditioning systems.
R-134a is commonly used in automotive air conditioning systems but can also be found in some household units
- Q5. Explain 1 ton cooling concept
- Ans.
1 ton cooling concept refers to the amount of heat required to melt one ton of ice in a 24-hour period.
1 ton of cooling is equal to 12,000 BTUs per hour
It is commonly used in the HVAC industry to measure the cooling capacity of air conditioning systems
For example, a 2-ton air conditioner can remove 24,000 BTUs of heat per hour
- Q6. Relation between current, voltage and power
- Ans.
The relationship between current, voltage, and power is described by Ohm's Law, which states that current is directly proportional to voltage and inversely proportional to resistance.
Ohm's Law states that V = I * R, where V is voltage, I is current, and R is resistance.
Power (P) is calculated using the formula P = V * I, where P is power, V is voltage, and I is current.
In a circuit with a constant resistance, an increa...
- Q7. Conversion from BTU to watts and vice versa
- Ans.
1 BTU is approximately equal to 0.29307107 watts. To convert BTU to watts, multiply by 0.29307107. To convert watts to BTU, divide by 0.29307107.
1 BTU = 0.29307107 watts
To convert BTU to watts, multiply by 0.29307107
To convert watts to BTU, divide by 0.29307107
(1 Question)
- Q1. No questions just test
(5 Questions)
- Q1. Would you be comfortable to regularly work extra hours?
- Q2. Introduction about yourself?
- Q3. Why do you want to join LG/ consumer durable industry?
- Q4. If your manager and colleagues are busy with work , how will you manage to learn the things from them?
- Q5. Present Salary and expected salary
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