GTL Limited Uipath Developer Interview Questions and Answers

Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions on OOPS and OS mainly.

Q1. What are Little Endian and Big Endian in the context of computer architecture?
Ans. 
Little Endian and Big Endian refer to the order in which bytes are stored in computer memory.
• Little Endian stores the least significant byte first, while Big Endian stores the most significant byte first.

• Little Endian is commonly used in x86 architecture, while Big Endian is used in architectures like SPARC and PowerPC.

• Endianness can affect data transmission between systems with different byte orders.
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Q2. Write a program to determine if your system is little-endian or big-endian.
Ans. 
Program to determine system's endianness
• Check the endianness by storing a multi-byte integer and checking the byte order

• Use bitwise operations to extract the least significant byte

• If the least significant byte is at the lowest memory address, it's little-endian

• If the least significant byte is at the highest memory address, it's big-endian
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Q3. What is the volatile keyword in programming?
Ans. 
The volatile keyword in programming is used to indicate that a variable's value can be changed unexpectedly.
• Volatile keyword is used in multithreaded programming to prevent compiler optimizations on variables that can be changed by other threads.

• It tells the compiler not to cache the variable's value in a register, ensuring that every access is made to the variable's memory location.

• Commonly used in embedded systems pr...read more
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Q4. What is the use of a function pointer in C?
Ans. 
Function pointers in C are used to store the address of functions, allowing for dynamic function calls and callbacks.
• Function pointers can be used to implement callbacks in event-driven programming.

• They can be used to switch between different functions at runtime.

• Function pointers are commonly used in implementing data structures like function pointers in an array of function pointers.

• Example: void (*funcPtr)(int) = &a...read more
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Q5. Design a data structure to implement multi-threading.
Ans. 
Design a data structure for multi-threading
• Use a thread-safe queue to manage tasks for each thread

• Implement a lock or semaphore to control access to shared resources

• Consider using condition variables for synchronization

• Use atomic operations for shared variables to prevent race conditions
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Q6. What does a kernel do?
Ans. 
The kernel is the core component of an operating system that manages system resources and provides a bridge between software and hardware.
• Manages system resources such as CPU, memory, and I/O devices

• Provides a bridge between software applications and hardware components

• Handles tasks such as process scheduling, memory management, and device drivers

• Controls communication between hardware and software layers
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Q7. What is a storage class in programming?
Ans. 
A storage class in programming defines the scope and lifetime of variables.
• Storage classes include auto, register, static, and extern.

• Auto variables are created when a function is called and destroyed when the function ends.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared outside of any function and can be accessed ...read more
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Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.

The first round consists of aptitude and coding.Aptitude is of easy to moderate level.

Q1. Interview questions were based on projects which are mentioned in your resume and from DBMS and computer networks
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Q2. Operating systems questions were also asked
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Q1. Previous works related questions in detail.
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Q2. Water supply related question will put in front of you, if you are working in the same field.
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Q1. If clear the round 1 then 2nd round will not be much difficult for that person.
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Q1. Salary negotiations will done in this round.
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Q1. About yourself?
Ans. 
I am a seasoned engineer with over 10 years of experience in software development, specializing in scalable systems and team leadership.
• Led a team of 5 engineers in developing a cloud-based application that increased client efficiency by 30%.

• Implemented Agile methodologies, resulting in a 25% reduction in project delivery time.

• Contributed to open-source projects, enhancing my skills and giving back to the community.

• Men...read more
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Q2. Power sector experience?
Ans. 
Extensive experience in power sector, focusing on renewable energy, grid management, and project implementation.
• Led a team in the implementation of a solar power project that increased energy output by 30%.

• Managed grid integration for a wind farm, ensuring compliance with regulatory standards.

• Conducted feasibility studies for new power plants, analyzing environmental impact and cost efficiency.

• Collaborated with cross-f...read more
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