HCL Group Vlsi Engineer Interview Questions and Answers

Q1. Compilation process in c
Ans. 
Compilation process in C involves preprocessing, compiling, assembling, and linking.
• Preprocessing: Includes header files, macro expansions, and conditional compilation.

• Compiling: Translates source code to assembly code specific to the target architecture.

• Assembling: Converts assembly code to machine code in object files.

• Linking: Combines object files and libraries to generate an executable file.
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Q2. Write a function pointer syntax?
Ans. 
Function pointer syntax allows for storing the address of a function in a pointer variable.
• Syntax: return_type (*pointer_name)(parameters)

• Example: void (*funcPtr)(int) = &someFunction;
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Q3. Discussion on current project?
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Q4. Reverse the string?
Ans. 
Reverse a given string
• Use a loop to iterate through the characters of the string

• Swap the characters from start to end of the string

• Continue swapping until reaching the middle of the string
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Q5. Set , clear and toggle the bit
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Q1. Mostly salary discussion
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Q2. Tell about yourself
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Q1. Linked list related questions
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Q2. Memory allocation in c
Ans. 
Memory allocation in C involves dynamically allocating and deallocating memory during program execution.
• Memory allocation in C is done using functions like malloc, calloc, realloc, and free.

• malloc function is used to allocate a block of memory of a specified size.

• calloc function is used to allocate a block of memory for an array of elements, initializing all bytes to zero.

• realloc function is used to resize a previously...read more
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Q1. Volatile keyword
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Q2. Project specific
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Q1. Salary expectations
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Q2. Reason for job change
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Q1. Polymorphism code?
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Q2. Ho can you start a sequences
Ans. 
To start a sequence, you need to define the sequence type, specify the starting value, and set the increment or decrement value.
• Define the sequence type: arithmetic, geometric, or custom

• Specify the starting value of the sequence

• Set the increment or decrement value for arithmetic or geometric sequences

• For custom sequences, define the sequence pattern or rule

• Examples: Arithmetic sequence starting from 1 with an increment...read more
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Q3. What is abstract class? Some basic sc and UVM questions
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Q4. Question over mentioned projects?
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Q1. Basic question on coding , digital electronics
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Q2. Difference between d ram and s ram
Ans. 
DRAM is volatile memory that stores data temporarily, while SRAM is faster and more expensive but retains data as long as power is supplied.
• DRAM stands for Dynamic Random Access Memory, while SRAM stands for Static Random Access Memory.

• DRAM requires refreshing to retain data, while SRAM does not.

• DRAM is slower and less expensive than SRAM.

• Examples of DRAM include DDR3 and DDR4, while examples of SRAM include L1, L2, an
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Aptitude, technical, gaming, behaviour test

Capgemini coding round

Q1. Self intro, family background,phicallyWhy is normalization needed in a database? What is the difference between UNION and UNION ALL? What is the drawback of scanf() and how can it be avoided? What is Ja...read more
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Q1. Explain the work in current org
Ans. 
I lead a team of engineers in developing embedded systems for industrial automation.
• Lead a team of engineers in developing embedded systems

• Work on projects related to industrial automation

• Collaborate with cross-functional teams to ensure project success
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Q2. Explain compilation process in C
Ans. 
Compilation process in C involves preprocessing, compiling, assembling, and linking.
• Preprocessing: Includes header files, macro expansion, and conditional compilation.

• Compiling: Translates source code into assembly code specific to the target architecture.

• Assembling: Converts assembly code into machine code in object files.

• Linking: Combines object files and libraries to generate an executable file.
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