Semilon Technologies Verification Engineer Interview Questions and Answers

Asked about c language

Work and time related questions

Q1. Volatile keyword
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Q2. Project specific
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Q1. Salary expectations
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Q2. Reason for job change
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Asked to introduce our self to check our communication.

Q1. Are you willing in night shift
Ans. 
Yes, I am willing to work in night shifts as required for the role of Background Verification Executive.
• I am flexible with my working hours and understand the importance of night shifts in this role.

• I have previous experience working in night shifts and have no issues with adjusting my schedule accordingly.

• I am committed to meeting the job requirements and will prioritize the needs of the company.

• I understand the natur...read more
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Q2. What is special day in your life
Ans. 
The most special day in my life was when I graduated from college.
• Graduating from college was a culmination of years of hard work and dedication.

• It was a day filled with pride, joy, and a sense of accomplishment.

• My family and friends were there to celebrate with me, making it even more memorable.

• I felt a sense of relief and excitement for the future as I walked across the stage to receive my diploma.
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Q1. What are storage class
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Storage classes in C specify the scope and lifetime of variables.
• Storage classes include auto, register, static, and extern.

• Auto variables are local to a block and have automatic storage duration.

• Register variables are stored in CPU registers for faster access.

• Static variables retain their value between function calls.

• Extern variables are declared in one file and can be used in another file.
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Q2. Explain structure program
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A structure program is a program that uses structures to group related data together.
• Structures in C programming allow you to group related data together under one name.

• You can define a structure using the 'struct' keyword.

• Structures can contain different data types, including int, float, char, and even other structures.

• You can access the members of a structure using the dot operator.

• Example: struct employee { int id; ...read more
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Q1. What is polymorphism
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Q2. What is inheritance
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Q1. Discussion about salary and bond
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Q1. CMOS basics - velocity saturartion
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Q2. Metastability - how do we fix it ?
Ans. 
Metastability occurs when a flip-flop samples an input signal at an unstable time, leading to unpredictable output. It can be fixed by using synchronization techniques.
• Use multiple stages of flip-flops to reduce the probability of metastability

• Increase the setup and hold times of flip-flops to provide more time for the input signal to stabilize

• Use synchronization circuits like 2-flop synchronizers to ensure proper samp
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Q3. OCV AOCV variation, multiple buffers in a path - how does it affect ?
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OCV AOCV variation with multiple buffers in a path can affect timing and power consumption.
• OCV (On-Chip Variation) and AOCV (Advanced OCV) variations can cause timing delays in a path with multiple buffers.

• The variation in buffer sizes and types can lead to different delays in the path, impacting overall timing.

• AOCV takes into account the statistical variations in process parameters, providing a more accurate estimatio...read more
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Q4. Setup and hold timing fixing
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Asked about c language

Work and time related questions

Q1. Basic question from my Resume and Work/Projects
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Q2. Technical Question : Stackoverflow, Queue, Virtual Class/Keyword, Pointers, Linked List
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Q3. Memory Stack, Local/Glabal/Staic Variable stored where?
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Q4. Direct Memory Access, Heap, Stack, Dyanamic Memory Allocation, memory Segmentation fault
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Q5. Difference between Timer and counters?
Ans. 
Timers are used to measure time intervals, while counters are used to count events or occurrences.
• Timers are typically used for generating delays, measuring time intervals, or triggering events at specific times.

• Counters are used to count external events, such as pulses or interrupts.

• Timers can be used to implement software delays, while counters can be used for tasks like frequency measurement.

• Examples: A timer can be...read more
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