HCLTech Software Engineer Interview Questions, Process, and Tips

Q1. SQL and Linux based questions
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Q1. SQL, Linux coding questions
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Q1. Salary discussion
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Basic Aptitude Questions

Q1. Tell me about yourself
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Q2. What is a pointer
Ans. 
A pointer is a variable that stores the memory address of another variable.
• Pointers are used to indirectly access and manipulate data in memory.

• They are commonly used in programming languages like C and C++.

• Example: int *ptr; // declares a pointer to an integer variable
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Q3. What is a pointer to pointer
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A pointer to pointer is a variable that stores the memory address of another pointer.
• It is used to store the address of a pointer variable.

• It allows indirect access to a memory location.

• Commonly used in dynamic memory allocation and multi-dimensional arrays.
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Q4. Difference between ++x and x++
Ans. 
++x increments the value of x and then returns the incremented value, while x++ returns the current value of x and then increments it.
• ++x is a pre-increment operator, it increments the value of x and then returns the incremented value

• x++ is a post-increment operator, it returns the current value of x and then increments it

• Example: int x = 5; int y = ++x; // x is now 6, y is 6

• Example: int x = 5; int y = x++; // x is now
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Q1. Tell me about yourself
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Q2. Why we should hire you
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Q1. Asked questions technical questions related to SQL
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Q1. Discussed about previous job process and conducted face to face virtual technical interview
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Q1. Salary discussion
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It is depend on programming languages

Q1. In technical round interviewer ask technical Questions.
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Q1. In Hr round ask basic questions , introduction and giving information
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It was an quiz which has javascript questions of 25 questions

Q1. More of javascript and frontend basics
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Q2. Call by reference with example
Ans. 
Call by reference is a method of passing arguments to a function by reference.
• In call by reference, the memory address of the variable is passed to the function.

• Any changes made to the parameter inside the function will reflect in the original variable.

• Example: void swap(int *a, int *b) { int temp = *a; *a = *b; *b = temp; }

• Example: int main() { int x = 10, y = 20; swap(&x, &y); // x = 20, y = 10 }
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