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Cadence Design Systems Interview Questions and Answers
134 Interview questions
Count the number of set bits in a given number's binary representation.
Convert the number to binary representation
Iterate through each bit and count the number of set bits
Use bitwise AND operator to check if a bit is set or not
Keep incrementing the count for each set bit
It depends on the specific use case and implementation.
C and C++ have different strengths and weaknesses.
C is often used for low-level programming and system-level tasks.
C++ is often used for object-oriented programming and high-level tasks.
The performance difference between C and C++ can be negligible or significant depending on the implementation.
Optimizations and compiler settings can also affect performance.
Be...
I know various sorting algorithms including bubble sort, insertion sort, selection sort, merge sort, quick sort, heap sort.
Bubble sort - repeatedly swapping adjacent elements if they are in wrong order
Insertion sort - inserting each element in its proper place in a sorted subarray
Selection sort - selecting the smallest element and swapping it with the first element
Merge sort - dividing the array into two halves, s...
Implement an API to return the second minimum element in a stack.
Create a stack and a variable to store the second minimum element.
Whenever a new element is pushed, compare it with the current second minimum and update if necessary.
Whenever an element is popped, check if it is the current second minimum and update if necessary.
Return the second minimum element when the secondMin() API is called.
Programs can crash due to various reasons such as memory errors, bugs, hardware issues, etc.
Memory errors such as accessing uninitialized memory, buffer overflows, etc.
Bugs in the code such as infinite loops, null pointer dereferences, etc.
Hardware issues such as power failures, overheating, etc.
External factors such as network failures, input/output errors, etc.
Tools like Valgrind can help detect memory errors an...
Cell padding is the space between the content of a cell and its border in a table.
Cell padding can be set using CSS or HTML attributes.
It affects the appearance of the table and can improve readability.
Padding can be set for individual cells or for the entire table.
Example:
Example: td { padding: 10px; }
🔥 Asked by recruiter 2 timesA Software Developer was askedQ. Given an array of numbers (positive and negative), find the subarray with the highest sum.Ans.Find subarray with highest sum in an array of numbers.
Use Kadane's algorithm to find maximum subarray sum
Initialize max_so_far and max_ending_here to 0
Iterate through the array and update max_ending_here and max_so_far
Return the subarray with highest sum
Example: [-2, 1, -3, 4, -1, 2, 1, -5, 4] => [4, -1, 2, 1]
Are these interview questions helpful?🔥 Asked by recruiter 2 timesA Software Developer was askedQ. What is UNION in C?Ans.UNION in C is a data type that allows storing different data types in the same memory location.
UNION is declared using the 'union' keyword.
It can be used to save memory by sharing the same memory location for different data types.
Accessing the members of a union can be done using the dot operator or the arrow operator.
Example: union myUnion { int i; float f; };
Example: myUnion.u.i = 10; myUnion.u.f = 3.14;
🔥 Asked by recruiter 2 timesA Software Developer was askedQ. What does the term “object oriented programming mean?”Ans.Object oriented programming is a programming paradigm that uses objects to represent and manipulate data.
OOP focuses on creating reusable code through the use of classes and objects
It emphasizes encapsulation, inheritance, and polymorphism
Examples of OOP languages include Java, C++, and Python
🔥 Asked by recruiter 2 timesA Software Developer was askedQ. What is the difference between overloading and overriding?Ans.Overloading is having multiple methods with the same name but different parameters. Overriding is having a method in a subclass with the same name and parameters as in the superclass.
Overloading is compile-time polymorphism while overriding is runtime polymorphism.
Overloading is used to provide different ways of calling the same method while overriding is used to provide a specific implementation of a method in a ...
Cadence Design Systems Interview Experiences
65 interviews found
Interview experienceExcellentDifficulty levelEasyProcess Duration2-4 weeksResult
Selected
I appeared for an interview in Jan 2025.
Round 1 - One-on-one(2 Questions)
- Q1. Are you comfortable with this role, general corporate behaviour questions, background information
- Q2. Puzzles
Add your answer
Add your answerRound 2 - Technical(2 Questions)
- Q1. Test creation, case study
- Q2. Python, selenium, SQL
Add your answerAdd your answerRound 3 - One-on-one(1 Question)
- Q1. Corporate behaviour questions, 2 puzzle questions
Add your answerRound 4 - HR(1 Question)
- Q1. Compensation discussion
Add your answer
Interview experienceGoodDifficulty levelHardProcess DurationLess than 2 weeksResult
Selected
I appeared for an interview in Apr 2024.
Round 1 - One-on-one(6 Questions)
- Q1. Introduce yourself
- Ans.
I am a passionate and experienced design engineer with a strong background in mechanical engineering.
Graduated with a degree in Mechanical Engineering from XYZ University
Worked for 5 years at ABC Company designing innovative products
Proficient in CAD software such as SolidWorks and AutoCAD
Strong problem-solving skills and attention to detail
Collaborated with cross-functional teams to bring projects to completion
- Q2. Explain matching and it type in detail with example. Why do we do matching.
- Ans.
Matching is the process of comparing two or more items to determine if they are the same or similar.
Matching involves comparing characteristics or features of items to find similarities or differences.
Types of matching include pattern matching, string matching, and image matching.
Matching is used in various fields such as computer science, psychology, and genetics.
Example: Matching fingerprints to identify a suspect in...
- Q3. Scenario: 2 blocks 100 um apart. current of 8 mA flows with 10 ohms resistance. What should be the metal width for routing.(Need to show the complete calculation)
- Ans.
To determine the metal width for routing, calculate the resistance and use it to find the required width.
Calculate resistance using R = ρ * (L/A), where ρ is the resistivity of the metal, L is the distance between blocks, and A is the cross-sectional area of the metal.
Use Ohm's Law (V = I * R) to find the voltage drop across the metal.
Finally, use the voltage drop and current to determine the required metal width.
- Q4. Explain block functionality of your previous project in detail and how your started your layout till tape out.
- Ans.
Block functionality of previous project involved data processing and storage. Layout started with floorplanning and power grid design.
Implemented data processing block using Verilog HDL
Designed storage block using flip-flops and registers
Started layout with floorplanning to allocate space for different blocks
Designed power grid to ensure proper distribution of power to all blocks
Performed physical design tasks such as ...
- Q5. Em&IR in detail and how these can be will resolved
- Ans.
Em&IR stands for Emissions and Immunity in the context of design engineering. Resolving these issues involves identifying sources of electromagnetic interference and implementing mitigation techniques.
Em&IR refers to the study of electromagnetic emissions from electronic devices and their susceptibility to external interference.
Common sources of electromagnetic interference include power supplies, motors, and wireless ...
- Q6. Write a command to find the lines containing the word "ERROR" from a log file and copy it to new file.
- Ans.
Command to find lines with 'ERROR' in log file and copy to new file
Use grep command to search for 'ERROR' in log file: grep 'ERROR' logfile.txt
Use redirection to copy the output to a new file: grep 'ERROR' logfile.txt > newfile.txt
Answered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerRound 2 - One-on-one(5 Questions)
- Q1. What is latchup and how it can be resolved
- Ans.
Latchup is a condition in integrated circuits where parasitic thyristors are inadvertently triggered, causing a high current flow.
Latchup can be resolved by adding guard rings around sensitive components to prevent parasitic thyristors from triggering.
Using layout techniques such as spacing sensitive components further apart can also help prevent latchup.
Properly designing the power distribution network and ensuring pr...
- Q2. What is Antenna effect and how it can be resolved.
- Ans.
Antenna effect is the phenomenon where the gate of a transistor behaves like an antenna, causing unwanted signal interference.
Antenna effect occurs in integrated circuits due to the gate acting as an antenna and picking up external signals.
It can lead to performance degradation and reliability issues in the circuit.
To resolve antenna effect, techniques like adding shielding layers, changing layout design, and using gua...
- Q3. Why do we go for higher metal jump not for lower metal jump for resolving Antenna.
- Ans.
Higher metal jumps are preferred over lower metal jumps for resolving antenna issues due to better signal propagation and reduced interference.
Higher metal jumps provide better signal propagation and reduced interference compared to lower metal jumps.
Higher metal jumps help in achieving better antenna performance and coverage.
Lower metal jumps may result in signal degradation and increased interference.
Higher metal jum...
- Q4. Explain WPE and how it can be taken care.
- Ans.
WPE stands for Water Pressure Equalization. It is a system used to maintain equal pressure in a water distribution network.
WPE helps prevent water hammer, which can damage pipes and fittings.
It ensures consistent water pressure throughout the network, even when demand fluctuates.
Regular maintenance of valves, pumps, and pressure regulators is essential to ensure the WPE system functions properly.
- Q5. What is LOD effect(I was unable to answer this one)
- Ans.
LOD effect refers to the impact of line-of-sight distance on signal strength and quality in communication systems.
LOD stands for Line of Sight Distance, crucial in wireless communication.
Signal strength decreases with increased distance from the transmitter.
Obstacles like buildings can cause signal degradation, known as multipath fading.
Example: In urban areas, LOD effect can lead to poor mobile reception due to tall s...
Answered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerRound 3 - HR(2 Questions)
- Q1. Asking regarding the gap in my career.
- Q2. Am I comfortable with job location.
- Ans.
Yes, I am comfortable with the job location.
I have researched the area and feel it is a good fit for me.
I have visited the location and liked what I saw.
I am willing to relocate if necessary for this opportunity.
Add your answerAnswered by AIAdd your answerInterview Preparation Tips
Interview preparation tips for other job seekers - 1. Make your resume by yourself and it should be precise, detailed(specially your projects), in professional format. Because your resume is your first impression.(First impression is your last impression)
2. Whenever you do your job try to corelate it with your theoretical knowledge. In interview you will be able to explain in detail with practical knowledge.
3. Believe in yourself.(This is what you need the most)Skills evaluated in this interview
Interview experienceGoodDifficulty level-Process Duration-Result-Round 1 - Technical(1 Question)
- Q1. Write a FIFO checker
- Ans.
A FIFO checker is a verification component used to monitor and validate the behavior of a First-In-First-Out buffer in a design.
Implement a monitor that tracks the input and output operations of the FIFO buffer
Check that the data is read out in the same order it was written in
Verify that the FIFO buffer does not overflow or underflow
Use assertions to flag any violations of FIFO behavior
Example: Monitor the write and re...
Answered by AIAdd your answer Interview experienceBadDifficulty levelEasyProcess DurationLess than 2 weeksResultNot SelectedI appeared for an interview in Mar 2025, where I was asked the following questions.
- Q1. Inheritancebased question, virtual function 2 times called
- Q2. Sort and array in user defined order
- Ans.
Sort an array of strings based on a user-defined order.
Define the custom order as a string, e.g., 'cba'.
Create a mapping of characters to their indices for quick lookup.
Use a sorting function that utilizes the mapping to sort the array.
Example: For array ['a', 'b', 'c'] and order 'cba', the result should be ['c', 'b', 'a'].
- Q3. Median from stream of integers
- Ans.
Efficiently finding the median from a stream of integers requires maintaining a balanced data structure for dynamic data.
Use Two Heaps: Maintain a max-heap for the lower half and a min-heap for the upper half of the numbers to efficiently find the median.
Insertion: When a new number is added, decide which heap to insert it into based on its value relative to the current medians.
Balancing Heaps: After each insertion, en...
- Q4. Smart Pointer and all types
- Q5. Copy contructor
- Ans.
A copy constructor creates a new object as a copy of an existing object, ensuring proper resource management.
A copy constructor is a special constructor in C++ that initializes an object using another object of the same class.
Syntax: ClassName(const ClassName &obj) { /* copy data */ }
Used for deep copying when an object contains pointers to dynamically allocated memory.
Example: If class A has a pointer, the copy co...
- Q6. Shallow and deep copy
- Q7. Tree taversals all types
- Ans.
Tree traversals are methods for visiting all nodes in a tree data structure, including pre-order, in-order, post-order, and level-order.
Pre-order Traversal: Visit root, then left subtree, then right subtree. Example: For tree (A, B, C), output is A, B, C.
In-order Traversal: Visit left subtree, then root, then right subtree. Example: For tree (A, B, C), output is B, A, C.
Post-order Traversal: Visit left subtree, then ri...
Add your answerAnswered by AIAdd your answerAnswered by AIAdd your answerAdd your answerAnswered by AIAdd your answerAdd your answerAnswered by AIAdd your answerInterview Preparation Tips
Interview preparation tips for other job seekers - All Depends on interviewer mood Interview experienceGoodDifficulty levelModerateProcess DurationLess than 2 weeksResultNot SelectedI applied via Campus Placement and was interviewed in Jun 2024. There were 2 interview rounds.
Round 1 - Technical(2 Questions)
- Q1. Capacitor and voltage in series and parallel
- Ans.
Capacitors in series add reciprocally, in parallel add directly. Voltage in series is the sum, in parallel is the same.
Capacitors in series: 1/Ctotal = 1/C1 + 1/C2
Capacitors in parallel: Ctotal = C1 + C2
Voltage in series: Vtotal = V1 + V2
Voltage in parallel: Vtotal = V1 = V2
- Q2. RLC circuit and circuit theory
Answered by AIAdd your answerAdd your answerRound 2 - Technical(2 Questions)
- Q1. Analyse the output of the circuitry
- Ans.
The output of the circuitry needs to be analyzed for functionality and accuracy.
Examine the input and output signals to ensure they are within expected ranges
Check for any noise or interference in the output
Verify that the circuit is functioning as designed based on the specifications
Look for any potential issues or errors in the output
- Q2. Draw the output waveforms
- Ans.
The output waveforms can be drawn based on the input signal and circuit configuration.
Understand the input signal characteristics (frequency, amplitude, etc.)
Analyze the circuit components and their effects on the signal
Draw the output waveform based on the input and circuit analysis
Answered by AIAdd your answerAnswered by AIAdd your answer Interview experienceExcellentDifficulty level-Process Duration-Result-Round 1 - Technical(2 Questions)
- Q1. Add two linked list
- Ans.
To add two linked lists, iterate through both lists simultaneously and add corresponding nodes, considering carry from previous addition.
Create a dummy node to hold the result.
Initialize current node to dummy node.
Iterate through both lists, adding values and carry from previous addition.
Move to next nodes in both lists.
Handle cases where one list is longer than the other.
Handle final carry if present.
- Q2. Find shortest path in graph
- Ans.
Use Dijkstra's algorithm to find the shortest path in a graph
Implement Dijkstra's algorithm to find the shortest path between two nodes in a graph
Maintain a priority queue to keep track of the shortest distance to each node
Update the shortest distance to each node as you traverse the graph
Track the path by storing the previous node for each node visited
Answered by AIAdd your answerAnswered by AIAdd your answerRound 2 - Technical(2 Questions)
- Q1. Check tree is BST
- Ans.
Check if a binary tree is a Binary Search Tree (BST)
Perform an in-order traversal of the tree and check if the resulting array is sorted
Keep track of the previous node value during traversal to compare with the current node value
Ensure that each node's value is greater than the previous node's value in the in-order traversal
- Q2. Check substring palindrome or not
- Ans.
Check if a substring in an array of strings is a palindrome or not.
Iterate through each string in the array
For each string, check if any of its substrings are palindromes
Return true if a palindrome substring is found, false otherwise
Answered by AIAdd your answerAnswered by AIAdd your answerSkills evaluated in this interview
Interview experienceGoodDifficulty level-Process Duration-Result-I applied via Campus Placement
Round 1 - Coding TestIt was an online assesment followed by an offline assessment.
Round 2 - Technical(3 Questions)
- Q1. Create a Linked List
- Ans.
A linked list is a data structure where each element points to the next element in the sequence.
Create a Node class with data and next pointer
Initialize a head pointer to null
Add elements by creating new nodes and updating next pointers
Traverse the list by following next pointers
- Q2. Insert a node in a Linked List
- Ans.
To insert a node in a Linked List, update the next pointer of the new node to point to the current node's next, then update the current node's next pointer to the new node.
Create a new node with the desired value
Set the new node's next pointer to the current node's next
Update the current node's next pointer to the new node
- Q3. Project based questions and CS fundamentals
Answered by AIAdd your answerAnswered by AIAdd your answerAdd your answerSkills evaluated in this interview
Interview experiencePoorDifficulty levelHardProcess Duration2-4 weeksResultNot SelectedI applied via Campus Placement and was interviewed in Mar 2024. There were 3 interview rounds.
Round 1 - Resume Shortlist(1 Question)
- Q1. CGPA over 8 was the criteria
Add your answerRound 2 - Aptitude TestLogical Reasoning, Verbal Reasoning , Quantitative Ability, Digital Electronics
DSP, C, Verilog, Digital DesignRound 3 - Technical(5 Questions)
- Q1. Array addition of two numbers
- Ans.
Add two numbers represented as arrays
Iterate through the arrays from right to left, adding digits and carrying over if necessary
Handle cases where one array is longer than the other
Return the result as a new array
- Q2. Access modifiers in java
- Ans.
Access modifiers in Java control the visibility of classes, methods, and variables.
There are four types of access modifiers in Java: public, protected, default (no modifier), and private.
Public: accessible from any other class.
Protected: accessible within the same package or subclasses.
Default: accessible only within the same package.
Private: accessible only within the same class.
Example: public class MyClass {}
- Q3. Complete code of all projects
- Ans.
It is not common practice to provide complete code of all projects in an interview setting.
It is not recommended to share complete code of all projects due to confidentiality and intellectual property concerns.
Instead, focus on discussing the technologies used, challenges faced, and solutions implemented in your projects.
Provide code snippets or high-level overviews of your projects to showcase your skills and experien...
- Q4. Deep learning- Yolov5 architecture, details on kernel size, reason for choosing Yolov5, preprocessing techniques
- Q5. BLE(Bluetooth Low Energy), Macros in C
Answered by AIAdd your answerAnswered by AIAdd your answerAnswered by AIAdd your answerAdd your answerAdd your answerSkills evaluated in this interview
Interview experienceExcellentDifficulty level-Process Duration-Result
Selected
Round 1 - Technical(2 Questions)
- Q1. Explain the working of CMOS inverter
- Ans.
CMOS inverter is a type of logic gate that converts input signals into their complementary outputs.
CMOS inverter consists of a PMOS transistor and an NMOS transistor connected in series.
When input is high, PMOS conducts and NMOS is off, resulting in output low.
When input is low, NMOS conducts and PMOS is off, resulting in output high.
CMOS technology is widely used in digital integrated circuits due to its low power con...
- Q2. Write a verilog code for sequence detectro
- Ans.
Verilog code for sequence detector
Use state machines to detect the desired sequence
Define states for each part of the sequence
Use combinational logic to transition between states
Implement the Verilog code using if-else statements and always blocks
Answered by AIAdd your answerAnswered by AIAdd your answerSkills evaluated in this interview
Interview experienceAverageDifficulty levelModerateProcess DurationLess than 2 weeksResult
Selected
I applied via Campus Placement and was interviewed in Dec 2024. There were 2 interview rounds.
Round 1 - Aptitude TestAsked about Network theory
Round 2 - HR(2 Questions)
- Q1. Asked about electrical questions
- Q2. Does not remember
Add your answerAdd your answerInterview Preparation Tips
Interview preparation tips for other job seekers - It is nice and wonderful Top trending discussions
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Interview Tips & Stories1w (edited)a team lead
Why are women still asked such personal questions in interview?I recently went for an interview… and honestly, m still trying to process what just happened. Instead of being asked about my skills, experience, or how I could add value to the company… the questions took a totally unexpected turn. The interviewer started asking things like When are you getting married? Are you engaged? And m sure, if I had said I was married, the next question would’ve been How long have you been married? What does my personal life have to do with the job m applying for? This is where I felt the gender discrimination hit hard. These types of questions are so casually thrown at women during interviews but are they ever asked to men? No one asks male candidates if they’re planning a wedding or how old their kids are. So why is it okay to ask women? Can we please stop normalising this kind of behaviour in interviews? Our careers shouldn’t be judged by our relationship status. Period.Got a question about Cadence Design Systems?Ask anonymously on communities.
Cadence Design Systems Interview FAQsHow many rounds are there in Cadence Design Systems interview?Cadence Design Systems interview process usually has 2-3 rounds. The most common rounds in the Cadence Design Systems interview process are Technical, One-on-one Round and HR.How to prepare for Cadence Design Systems interview?Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Cadence Design Systems. The most common topics and skills that interviewers at Cadence Design Systems expect are System Design, Aerospace, C++, Debugging and Automotive Engineering.What are the top questions asked in Cadence Design Systems interview?Some of the top questions asked at the Cadence Design Systems interview -
What are the most common questions asked in Cadence Design Systems HR round?How long is the Cadence Design Systems interview process?The duration of Cadence Design Systems interview process can vary, but typically it takes about less than 2 weeks to complete.
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