Scaledge Verification Engineer Interview Questions and Answers

Fundamental knowledge of aptitude, MPMC, C/C++, basic electronics, and digital electronics.

Q1. Mostly asked digital electronics and verilog, any programming language
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Q1. In depth questions from verilog and digital electronics
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Q1. About company policy family background etc
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Q1. What is Polymorphism in sv
Ans. 
Polymorphism in SystemVerilog allows objects of different types to be treated as objects of a common base type.
• Polymorphism allows for more flexibility and reusability in code

• It enables the use of virtual methods to be overridden in derived classes

• Example: Using a base class to define common methods and then creating derived classes that implement those methods differently
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Q2. What is Inheritance in sv
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Inheritance in SystemVerilog allows a class to inherit properties and methods from another class.
• Inheritance allows for code reusability and promotes a hierarchical structure.

• Derived class inherits properties and methods from the base class.

• Derived class can also have its own unique properties and methods.

• Example: class B extends class A, where B inherits properties and methods from A.
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Q1. Basic Verilog questions, Basic Digital Questions, if you know computer Architecture then few questions form pipeline,hazards,caches, lastly basic C questions
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Q2. Difference between task and function ?
Ans. 
Tasks are concurrent blocks of code that can run in parallel, while functions are sequential blocks of code that perform a specific task.
• Tasks can run concurrently, while functions run sequentially

• Tasks can be executed in parallel, while functions are executed one after the other

• Tasks are used for parallel processing, while functions are used for sequential processing
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Q3. Difference between blocking and non-blocking
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Blocking operations wait until the operation completes, while non-blocking operations do not wait and allow other operations to continue.
• Blocking operations halt the execution until the operation is completed

• Non-blocking operations do not halt the execution and allow other operations to continue

• Blocking operations are synchronous, while non-blocking operations are asynchronous

• Example: In a blocking operation, a functio...read more
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Q4. Write an fsm code for patten detector
Ans. 
FSM code for pattern detector
• Define states for different patterns to detect

• Transition between states based on input pattern

• Output a signal when a specific pattern is detected
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Q1. Same as first interview
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VERILOG, SV, SVA, UVM architecture, protocol, anything that is present in your resume, related to Asic Verification.

Q1. Discuss scoreboard and how to get expected data.
Ans. 
Scoreboard is a verification component that tracks and compares expected and actual data.
• Scoreboard is used to monitor the progress of a design under test (DUT) and compare it with the expected behavior.

• It can be implemented using a register or a memory block.

• Scoreboard can be used to check the correctness of the DUT's output against the expected output.

• Expected data can be obtained from a reference model or a golden m...read more
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Q2. How will you use UVM and integrate it with c based test case
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UVM can be used to create a testbench environment and integrate it with c based test cases using DPI-C.
• Create a UVM testbench environment using SystemVerilog

• Use DPI-C to integrate the c based test cases with the UVM environment

• Define a DPI import function in SystemVerilog to call the c functions

• Use UVM sequences to drive the test cases

• Use UVM scoreboard to verify the results

• Use UVM coverage to ensure complete coverage ...read more
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