Imagination Technologies Interview Questions and Answers

Easy -medium

Q1. Tech round 1 Basics about Computer Architecture
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Q2. Basics about C++ concepts and system verilog and digital design ,flip flops
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Pointer and linked list

Pure technical on kernel programming

Q1. Pure technical questions on background project
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Q2. Mutex semaphore and spinlock
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Q3. How you will achieve multi threaded programming
Ans. 
Multi-threaded programming can be achieved by creating multiple threads that run concurrently.
• Identify the tasks that can be executed in parallel

• Create threads using threading libraries in the chosen programming language

• Synchronize the threads to avoid race conditions and deadlocks

• Use locks, semaphores, and mutexes to manage shared resources

• Optimize the performance by balancing the workload among threads
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Q1. Why you want to join this company
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Q1. This was more like shortlisting round with manager. Asked about resume and previous work experience. Not much Technical questions.
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Q1. Python programming questions, Basics
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Q2. Python oops concepts
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Q3. What is module in Python
Ans. 
A module in Python is a file containing Python code, which can define functions, classes, and variables.
• Modules help organize Python code into reusable components

• Modules can be imported into other Python scripts using the 'import' keyword

• Examples of modules in Python include math, random, and os
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Q4. Python memory management
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Q5. Basic Devops questions
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Round duration - 40 minutes
Round difficulty - Medium

Data structures were asked like linked list and stacks. Hashmaps were also there. some basic questions of DBMS were asked and the interviewer asked if i know networking for which i said no. After that there was a 5 minute simple straightforward round with H.R

Q1. 
Middle of a Linked List
You are given the head node of a singly linked list. Your task is to return a pointer pointing to the middle of the linked list.
If there is an odd number of elements, return the ...read more
Ans. 
Return the middle node of a singly linked list, considering odd and even number of elements.
• Traverse the linked list with two pointers, one moving twice as fast as the other

• When the fast pointer reaches the end, the slow pointer will be at the middle

• Return the node pointed by the slow pointer
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Had Aptitude and VLSI-Based Questions

Q1. You have a 3 ltr jug and 5 ltr jug measure 4lt water using this.
Ans. 
Use the 3 ltr jug to fill the 5 ltr jug twice, leaving 1 ltr in the 3 ltr jug. Then fill the 3 ltr jug and pour it into the 5 ltr jug.
• Fill the 5 ltr jug twice with the 3 ltr jug

• 1 ltr will be left in the 3 ltr jug

• Fill the 3 ltr jug and pour it into the 5 ltr jug

• 4 ltr of water will be in the 5 ltr jug
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Q2. The same question, but now do it starting with the 3ltr jug.
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I interviewed with Mediatek having just 1 year of experience. It was for outsourcing position.

They asked me concepts from C language, writing code for data structures (LinkedIn list), and a question on string which I can't remember. This was pre COVID days.

Q1. Write code to insert a node to the middle of linked list
Ans. 
Insert a node to the middle of a linked list
• Find the middle node using slow and fast pointers

• Create a new node with the data to be inserted

• Adjust the pointers to insert the new node in the middle
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Q1. Count freq of elements in array
Ans. 
Count frequency of elements in array of strings
• Iterate through the array and use a hashmap to store the frequency of each element

• Use a for loop to go through each element and update the count in the hashmap

• Return the hashmap with element frequencies
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