Synapse Design Senior Verification Engineer Interview Questions and Answers

Q1. 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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Q2. Clear the set bit
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Q1. 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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Q2. Microprocessor microcontroller topics are asked
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Basic aptitude-10 question,digital moderate -Question,analog moderate -10 question,verilog and system verilog -10 question

Q1. Latches and flip flop all characteristics equation and proof of the characteristics equation in flip flop.applications of flip flop
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Q2. OOPS,INHERITANCE,VERILOG,BLOCKING - NON BLOCKING ASSIGNMENT OPERATOR and all the basic operations of verilog .
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Q3. Discussion on work experience.
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Q1. Basics of analog , digital and vlsi
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Q2. On face to face interview, they asked me abt my projects , digital, little analog , vlsi ( verilog), microcontrollers and c programming
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40 aptitude qns and some mcqs on basic programming

Q1. I was asked to write two sum, palindrome function and merge sort code in whatever language I'm comfortable in
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Q2. Two sum- return true or false
Ans. 
Given an array of integers, determine if there are two numbers that add up to a specific target.
• Iterate through the array and store each element in a hash set.

• For each element, check if the difference between the target and the element exists in the hash set.

• If the difference exists, return true; otherwise, continue iterating.

• Example: nums = [2, 7, 11, 15], target = 9. The function should return true as 2 + 7 = 9.
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Q3. Merge sort function code
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Q4. Palindromic string or not
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Q1. Write a FIFO checker
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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...read more
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Aotitude,core que on all subjects in ece

Q1. INTERNSHIP EXPERIENCE
Ans. 
I completed a 6-month internship at XYZ Company where I gained hands-on experience in physical design tools and methodologies.
• Worked on floorplanning, placement, and routing of digital designs

• Utilized tools such as Cadence Innovus and Synopsys ICC

• Collaborated with cross-functional teams to optimize design performance
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Q2. ON DSD,VLSI,ANALOG ELECTRONICS
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Q1. APTITUDE,MATH,VLSI,DSD
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Q2. VLSI (HARD QUESTION BASED ON INDUSTRY LEVEL LIKE ON CIRCUIT HE GIVES ONE SCENARIO U HAVE TO ANSWER IT)
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Q1. Prepare for c programming and verilog for system level verification
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Q2. Explain the architecture of SoC and its components. How is transaction done at SoC level
Ans. 
SoC architecture consists of multiple components like CPU, memory, peripherals, and interconnects. Transactions are done through buses.
• SoC architecture includes a CPU, memory, peripherals, and interconnects

• Interconnects are used to connect the components and enable communication

• Transactions are done through buses like AXI, AHB, or APB

• The components can be customized based on the application requirements
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