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20+ IIFL Finance Interview Questions and Answers

Updated 20 Jan 2025

Q1. City of Happy People Problem Statement

Imagine a city where the happiness of each resident is described by a numerical value. Ninja, who is visiting this city, is interested in forming groups of people such tha...read more

Ans.

The problem is to find the number of ways to form a group of people such that the overall happiness of the group falls within a given range.

  • Iterate through all possible subsets of the given array/list

  • Calculate the sum of happiness values for each subset

  • Count the number of subsets whose sum falls within the given range

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Q2. Wildcard Pattern Matching Problem Statement

Implement a wildcard pattern matching algorithm to determine if a given wildcard pattern matches a text string completely.

The wildcard pattern may include the charac...read more

Ans.

The task is to implement a wildcard pattern matching algorithm that checks if a given wildcard pattern matches a given text.

  • The wildcard pattern can include the characters '?' and '*'

  • '?' matches any single character

  • '*' matches any sequence of characters (sequence can be of length 0 or more)

  • The matching should cover the entire text, not partial text

  • Implement a function that takes the wildcard pattern and the text as input and returns True if the text matches the pattern, False...read more

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Q3. What is a cache? What does tag used for in a cache?

Ans.

A cache is a high-speed data storage layer that stores frequently accessed data to reduce access time. A tag is used to identify the location of data in the cache.

  • Cache is a temporary storage that holds frequently accessed data

  • It reduces the access time by providing faster access to data

  • Tag is used to identify the location of data in the cache

  • Tag is a part of the cache memory address

  • Cache can be implemented in hardware or software

  • Examples of cache include CPU cache, browser c...read more

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Q4. Why are you interested in freescale ?

Ans.

I am interested in Freescale because of their innovative technology and strong reputation in the industry.

  • Freescale has a history of developing cutting-edge technology

  • Their reputation in the industry is strong and respected

  • I am excited about the opportunity to work with a company that values innovation and excellence

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Q5. What are the improvement in 11ac compared to 11n

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Q6. Write a program for an ATM machine to get minimum no. of notes.

Ans.

Program to calculate minimum number of notes for ATM withdrawal

  • Create an array of available note denominations

  • Sort the array in descending order

  • Initialize a counter variable to keep track of the number of notes

  • Iterate through the array and divide the withdrawal amount by each note denomination

  • Update the counter variable with the quotient

  • Update the withdrawal amount with the remainder

  • Repeat the above steps until the withdrawal amount becomes zero

  • Return the counter variable as ...read more

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Q7. Difference between git pull and git rebase

Ans.

git pull merges changes from a remote branch to a local branch, while git rebase applies changes from one branch to another.

  • git pull fetches changes from a remote branch and merges them into the current local branch

  • git rebase applies changes from one branch to another by moving the current branch to the tip of the other branch

  • git pull is easier to use and is recommended for small changes, while git rebase is more powerful and flexible but can be complex to use

  • git pull creates...read more

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Q8. CMOS circuit and design along with VTC characteristics

Ans.

CMOS circuits are widely used in integrated circuits for their low power consumption and high noise immunity. VTC characteristics show the relationship between input and output voltage.

  • CMOS circuits consist of complementary pairs of p-type and n-type MOSFETs, allowing for low power consumption and high noise immunity.

  • VTC (Voltage Transfer Characteristic) shows the relationship between input and output voltage in a CMOS circuit.

  • VTC characteristics typically exhibit a sharp tra...read more

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Q9. How tunnel is formed in TTLS 802.1x

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Q10. Explain scanning process and types of scans

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Q11. How MU MIMO works ?

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Q12. Types of Memory Allocations in C

Ans.

Types of memory allocations in C include static, dynamic, and automatic.

  • Static memory allocation: memory is allocated at compile time and remains constant throughout the program's execution. Example: int x = 5;

  • Dynamic memory allocation: memory is allocated at runtime using functions like malloc() or calloc(). Example: int *ptr = (int*)malloc(sizeof(int));

  • Automatic memory allocation: memory is allocated on the stack and is automatically deallocated when the function scope ends...read more

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Q13. Pointers in C - Types of pointers

Ans.

Pointers in C are variables that store memory addresses. Types include null pointers, void pointers, function pointers, etc.

  • Null pointers: int *ptr = NULL;

  • Void pointers: void *ptr;

  • Function pointers: int (*ptr)(int, int);

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Q14. Explain 4 way handshake process

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Q15. Can we pass an array to function.

Ans.

Yes, an array can be passed to a function in embedded firmware programming.

  • Arrays can be passed to functions by specifying the array name as the argument.

  • The function can then access and manipulate the elements of the array.

  • Example: void printArray(int arr[], int size) { ... }

  • Example: int main() { int myArray[] = {1, 2, 3}; printArray(myArray, 3); }

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Q16. Draw the bode plot for CS amplifier

Ans.

Bode plot for CS amplifier shows gain and phase response with frequency.

  • Bode plot consists of two plots - one for gain (in dB) and one for phase shift (in degrees) vs frequency.

  • The gain plot typically shows a high-pass filter response with a peak at the resonant frequency.

  • The phase plot shows a 180 degree phase shift at the resonant frequency.

  • Bode plots are useful for analyzing frequency response of amplifiers and filters.

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Q17. toggle the bits of given input

Ans.

Toggle the bits of given input

  • Create a mask with all bits set to 1

  • XOR the input with the mask to toggle the bits

  • Repeat the process for each bit position

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Q18. print the star pattern

Ans.

Print a star pattern using loops

  • Use nested loops to print the desired pattern

  • Increment the number of stars in each row to create the pattern

  • Example: for a pattern with 5 rows - * , ** , *** , **** , *****

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Q19. Design based on testing

Ans.

Designing based on testing involves creating systems that are thoroughly tested to ensure functionality and reliability.

  • Develop test cases based on requirements to ensure full coverage

  • Implement automated testing to streamline the testing process

  • Utilize continuous integration and deployment to catch bugs early

  • Perform regression testing to ensure new features do not break existing functionality

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Q20. Nmos design and working

Ans.

NMOS (N-channel Metal-Oxide-Semiconductor) is a type of MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) that uses n-type semiconductor for the channel.

  • NMOS transistors are used in digital and analog circuits for switching and amplification.

  • In NMOS design, the gate is made of metal, the insulator is made of oxide, and the semiconductor is n-type.

  • NMOS transistors operate by applying a voltage to the gate terminal to control the flow of current between the source and ...read more

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Q21. Copy Constructor in cpp

Ans.

Copy constructor in C++ is a special member function that creates a new object as a copy of an existing object.

  • Copy constructor is used to initialize a new object as a copy of an existing object.

  • It is invoked when a new object is created from an existing object.

  • Example: class MyClass { public: MyClass(const MyClass& obj) { // copy constructor logic } };

  • Example: MyClass obj1; MyClass obj2 = obj1; // copy constructor is invoked

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Q22. Day to day tasks

Ans.

Day to day tasks involve coding, debugging, testing, and collaborating with team members.

  • Writing code for new features or fixing bugs

  • Debugging and troubleshooting issues

  • Testing code to ensure quality and functionality

  • Collaborating with team members on projects

  • Participating in code reviews and providing feedback

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Q23. Experience with Power BI

Ans.

I have experience using Power BI to create interactive visualizations and analyze data.

  • Created interactive dashboards to track key performance indicators

  • Used Power Query to clean and transform data for analysis

  • Utilized DAX formulas to calculate metrics and create custom measures

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Q24. Verilog codes for flip flops

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Q25. MOSFET explanation

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