Intel Hardware Testing Engineer Interview Questions and Answers

Basic ece ques and apti

Q1. What are flip flops and latches
Ans. 
Flip flops and latches are sequential logic circuits used in digital electronics to store and transfer data.
• Flip flops are clocked circuits that store one bit of data, while latches are level-sensitive circuits that store data as long as the enable signal is active.

• Flip flops are edge-triggered, meaning they change state on a clock edge, while latches are level-triggered, changing state as long as the enable signal is ...read more
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Q2. Verilog projects
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Logical, Quant and English questions. C based theory questions, and digital electronics.

Q1. Project related questions, SRAM, DRAM device based questions.
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Q2. CMOS based questions to determine the drain voltage of a transistor.
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Q3. Question about read cycle timing graphs in AHB.
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Questions on dgital electronics and circuits

Q1. Questions on digital electronics , STA and FSM and Verilog
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Digital Electronics, verilog basics,C language basics,

Q1. Project description, digital system design for start bit detector in UART
Ans. 
Designing a digital system for detecting start bit in UART communication
• The start bit is the first bit in a UART transmission and is always a logic low

• The system should sample the incoming data at a rate higher than the baud rate to accurately detect the start bit

• A shift register can be used to store the incoming data and detect the start bit

• The system should also check for framing errors and parity errors
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Q2. Project description, latch based circuit and flip flop based circuits, 1 puzzle
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Digital Electronics, CMOS, Aptitude, C programming

Q1. Verilog, VLSI Design Flow, CMOS basics
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Based on Electronics, Aptitude and Software

Q1. Explain the working of D flip flop
Ans. 
D flip flop is a digital circuit that stores a single bit of data and is used in sequential logic circuits.
• D flip flop has a data input (D), a clock input (CLK), a set input (S), and a reset input (R).

• When the clock input is high, the value of D is transferred to the output Q.

• When the set input is high, the output Q is set to high.

• When the reset input is high, the output Q is reset to low.

• D flip flop is used in applica...read more
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Q2. Finding factorial using C
Ans. 
Factorial can be found using a loop or recursion in C programming language.
• Use a loop to multiply the numbers from 1 to n to find the factorial of n.

• Use recursion to call the function itself with n-1 until n=1.

• Handle edge cases such as negative numbers and 0.

• Example: int factorial(int n) { if(n<=1) return 1; return n*factorial(n-1); }

• Example: int factorial(int n) { int fact=1; for(int i=1;i<=n;i++) fact*=i; return fact
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Q3. Find duplicates in a string
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To find duplicates in a string, we can use a hash table to keep track of the frequency of each character.
• Iterate through the string and add each character to the hash table with its frequency

• If a character already exists in the hash table, it is a duplicate

• Return a list of all the duplicate characters found
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