Hewlett Packard Enterprise System Software Engineer Interview Questions, Process, and Tips

Q1. Difference between Microprocessor and Micro-controller
Ans. 
Microprocessor is a CPU on a single chip while Micro-controller is a CPU with integrated memory and peripherals.
• Microprocessor is used in general-purpose computing while Micro-controller is used in embedded systems.

• Microprocessor requires external memory and peripherals while Micro-controller has them integrated.

• Examples of Microprocessors are Intel Pentium, AMD Ryzen while examples of Micro-controllers are Arduino, Ra...read more
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Q2. Describe I2C fundamentals
Ans. 
I2C is a serial communication protocol used to connect multiple devices with two wires.
• I2C stands for Inter-Integrated Circuit

• It uses two wires - SDA (Serial Data) and SCL (Serial Clock)

• It supports multiple devices on the same bus using unique addresses

• It operates in master-slave mode where the master initiates the communication

• It uses ACK/NACK signals to confirm successful data transmission
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Q1. Difference between GPOS and RTOS
Ans. 
GPOS is a general-purpose operating system while RTOS is a real-time operating system.
• GPOS is designed to handle a wide range of applications while RTOS is designed to handle time-critical applications.

• GPOS has a higher latency and lower determinism compared to RTOS.

• RTOS has a smaller footprint and faster response time compared to GPOS.

• Examples of GPOS include Windows, Linux, and macOS while examples of RTOS include Fr
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Q2. Describe bootup sequence
Ans. 
Bootup sequence is the process of starting up a computer system.
• Power on self-test (POST) is performed

• BIOS is loaded and executed

• Bootloader is loaded and executed

• Operating system kernel is loaded and executed

• Device drivers are loaded and initialized

• User login prompt is displayed
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Q3. How will you select a particular hardware / vendor for a system
Ans. 
Hardware selection depends on system requirements, vendor reputation, and cost.
• Identify system requirements and ensure hardware compatibility

• Research vendor reputation and reliability

• Consider cost and budget constraints

• Evaluate vendor support and maintenance options

• Compare hardware specifications and features

• Consider future scalability and upgrade options
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Basic coding easy/medium level, having a decent understanding of oops and practicing will help

A scenario case about buy/selling and maintaining tokens related to it , needs basic understanding of oops

Discussion on projects and how to handle certain scenario if changes suggested were made

2 coding questions, dsa mcq computer networks operating system mcq

Q1. Implement queue using linksd list
Ans. 
Queue can be implemented using linked list by maintaining head and tail pointers.
• Create a node structure with data and next pointer

• Maintain head and tail pointers to keep track of front and rear of queue

• Enqueue by adding node at tail and dequeue by removing node from head
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Q2. Print 1 to n using recursion
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Print 1 to n using recursion
• Define a recursive function that takes n as input

• Base case: if n is 1, print 1 and return

• Recursive case: call the function with n-1 and print n
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There were 2 coding questions that were to be done in 40 minutes. Toggling between the questions was NOT allowed and there was 20 minutes timer for each question. The codes were of easy-medium difficulty level. Also, 50 MCQs of core CSE topics were asked which were to be completed in 60 minutes. The difficulty level was high.
Sectional cutoffs was there to qualify for the next round. Time to completion was also taken into account.

Q1. This round consisted of an in-depth discussion on C/Java, OS, and cloud computing. The discussion was also done on personal projects. The difficulty was of medium level. The round was of approx 40 minutes...read more
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Q2. A coding question on merge sort was asked which had to be done in notepad.
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Q1. This round consisted of an in-depth discussion on OS and computer networking questions. The discussion was also done on previous internship experiences. Also, some behavioral questions were asked. The dif...read more
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Q2. A coding question on linked list was asked which had to be done in notepad.
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Q1. Normal HR questions were asked.
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