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Qualcomm Associate Engineer Interview Questions, Process, and Tips
Top Qualcomm Associate Engineer Interview Questions and Answers
- Q1. Maximal Ratio Combining in MIMO, Quantization Noise power
- Q2. Gaussian mixture, pdf of sum of 2 RV
- Q3. Implement search, insert and delete nodes in binary trees.
Qualcomm Associate Engineer Interview Experiences
24 interviews found
Tanya Goyal
(2 Questions)
- Q1. Linked list middle node, bit manipulation
- Q2. Wireless questions
Anonymous
Selected
I applied via Referral and was interviewed in Apr 2024. There were 2 interview rounds.
Running stream median, priority queue, binary search, dp basic
(2 Questions)
- Q1. Cycle in linked list
- Ans.
A cycle in a linked list occurs when a node points to a previous node in the list, creating a loop.
Check for a cycle using two pointers - one moving one node at a time and the other moving two nodes at a time.
If the two pointers meet at any point, there is a cycle in the linked list.
Example: 1 -> 2 -> 3 -> 4 -> 2 (points back to 2), this linked list has a cycle.
- Q2. Construct a tree from pre and post.
- Ans.
Construct a tree from pre and post order traversal arrays.
Start by creating a root node using the first element of the pre-order array.
Find the index of the root node in the post-order array to divide it into left and right subtrees.
Recursively build the left and right subtrees.
Repeat the process for each subtree until the tree is fully constructed.
Interview Preparation Tips
Skills evaluated in this interview
(1 Question)
- Q1. C pointer deep copy ?
30 min pof test of verbal, reasoning
Qualcomm interview questions for designations
5 coding questions with medium to tough difficult level
(1 Question)
- Q1. Technical round on coding knowledge
Get interview-ready with Top Qualcomm Interview Questions
Selected
I applied via Campus Placement and was interviewed before Oct 2022. There were 5 interview rounds.
Coding MCQ questions, CS fundamentals and aptitude MCQ
(1 Question)
- Q1. Define workqueues, OS related concepts etc
- Ans.
Workqueues are data structures used in operating systems to manage tasks and prioritize their execution.
Workqueues are used to schedule and manage tasks in an operating system.
They help in prioritizing tasks based on their importance and urgency.
Workqueues are commonly used in kernel programming to handle asynchronous tasks.
Examples of workqueues include the Linux kernel workqueue and Windows kernel workqueue.
(1 Question)
- Q1. Implement search, insert and delete nodes in binary trees.
- Ans.
Implement search, insert, and delete operations in binary trees.
For search operation, start at the root and recursively search left or right subtree based on the value being searched.
For insert operation, start at the root and recursively find the correct position to insert the new node.
For delete operation, find the node to be deleted, handle different cases (no child, one child, two children) accordingly.
(1 Question)
- Q1. What are you strength and weaknesses?
Interview Preparation Tips
Skills evaluated in this interview
Associate Engineer Jobs at Qualcomm
Digital electronics ,VLSi,C,Quants
(1 Question)
- Q1. All basic questions in core
(3 Questions)
- Q1. Why are you looking for a change?
- Q2. What are your strengths and weaknesses?
- Q3. Tell me about yourself.
Interview Preparation Tips
Interview Questionnaire
2 Questions
- Q1. Questions asked on basic digital circuits and inverter characteristics
- Q2. In this round only routine questions asked
Interview Preparation Tips
Experience: For this test i went through basics of B.Tech topics.in this test most questions asked from quant,core(basic digital,devices,signals) and c programming.
Tips: Firstly i adviced that for test you have to go through basic topics of your graduation and if you wants selection in qualcomm then you have to main focussed on quant,core(basic digital,devices,signals)
Duration: 120 minutes
Round: Interview
Experience: I started preparation from starting of november and in this round core companies asked questions from digital circuits mainly .i prepared for interview same way as i prepared for test
Tips: For techinal round you have to go through basics of B.tech topics and if u are applied for core companies like qualcomm then you have to focussed on digital circuits
Round: Interview
Experience: In this round just routine questions asked to me and there was a time duration about 40 minutes
Tips: For HR round you have to asked only just routine question so you have to prepare for routine questions
General Tips: Core companies mainly asks question from core(basic digital,devices and signals). Then you have to focus on these topics.
Skill Tips: If you guys applied for core companies then you have to focus on digital circuits,devices,signals and on inverter characteristics
Skills: Inverter characteristics, Core subjects, Basic Digital, Basic Device Signals
College Name: IIT MADRAS
Shreyansh Ankit
Interview Preparation Tips
Experience: I was offered a pre-placement offer from Qualcomm. For the selection of interns we had an online test of 1 hour.
Tips: Make sure that you are thorough with both analog and digital concepts. Books like Gaikwad, Morris Mano and Givone are useful.
General Tips: As Qualcomm is one of the best electronic companies, competition was tough. Getting through was really challenging, but at the end there is nothing more rewarding than getting a placement.
Skill Tips: Try keeping your answers to the point and be confident. There is no shame in admitting that you dont know a particular answer. Most importantly, believe in yourself. Have a strong base in analog and digital. Knowledge in coding in C, Python and Perl can be handy too.
Skills:
College Name: NIT Surathkal
Interview Preparation Tips
Experience: The first round was a written round. The paper had three sections: Aptitude , C and DSP.
Round: Technical Interview
Experience: 14-15 people were shortlisted for the second round (Technical Interview round). Questions were asked on topics like Digital System Design, DECA and VLSI (Sequence detector questions, FSM based questions and MOSFET based questions)
Round: HR Interview
Experience: 3 people were shortlisted for the HR round. The general trend is that, you make it to the HR round, You have almost grabbed the Intern :) . Usual questions like "why Qalcomm?", "What is special about you?", "What are your strengths and weaknesses?" etc. were asked.
General Tips: For interns: Be thorough with DECA, MOSFETS and DSD. These are the areas on which Qualcomm's work focuses on. It will be a plus point if you know VLSI.
For fresh grads: You need to be thorough with VLSI design in addition to the above mentioned topics.
Skill Tips: I went through DECA notes. No need of any extra preparation if you are thorough with basic concepts in DSD and DECA.
1) Prepare your Resume properly. I was asked about each and every project that I had mentioned in my Resume. If you fumble about anything on your resume, it will dampen your prospects of moving forward.
2) For internship selection, there will be 1 technical interview round and 1 HR round whereas for Fresh grads selection : there will be 2 technical interview rounds and 1 HR round
The overall recruitment procedure was Exhausting. It lasted for an entire day.
Skills:
College Name: NIT Surathkal
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Qualcomm Associate Engineer Interview Process
based on 6 interviews
4 Interview rounds
- Technical Round
- HR Round
- Aptitude Test Round - 1
- Aptitude Test Round - 2
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