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Embedded Systems Interview Questions
Questions Answers Views Company eMail

What are the two types of noise of MOSFET, how to eliminate them?(Thermal and Flicker).

Analog Devices,

4 14959

What is the build-in potential?

Wipro,

1 3330

Tell me how MOSFET works.

2428

For a 0.18um and 0.8um technology MOSFET, which has a higher cutoff frequency?

2 11850

How does a Bandgap Voltage reference work?

3909

What is the ideal input and output resistance of a current source?

3015

Tell me how BJT works.

2 8067

what is Early effects and their physical origin.

1 4617

what is short Channel effect.

2 8016

How about voltage source?

2271

How to improve these parameters? (Cascode topology, use long channel transistors)

2187

Which type of architecture 8085 has?

DRDO, Sasken, Wipro,

6 34043

How many memory locations can be addressed by a microprocessor with 14 address lines?

HCL, Paavai,

5 31089

8085 is how many bit microprocessor?

18 34089

Why is data bus bi-directional?

College School Exams Tests, TCS, Wipro,

11 57479


Un-Answered Questions { Embedded Systems }

What are software interrupts?

1033


State the two type of 16 bit registers and define them?

933


Significance of watchdog timer in embedded systems.

918


What trade offs do you have for resource contention?

859


Define the jobs performed by the biu and eu in the 8086.

1251


Describe a software development life cycle that you've managed.

827


Define sampling and aliasing.

946


Discuss the differences between mocks and stubs/fakes and where you might use them (answers aren't that important here, just the discussion that would ensue).

860


If an/ap = 0.5, an/ap = 1, an/ap = 3, for 3 inverters draw the transfer characteristics?

2502


In a SRAM layout, which metal layers would you prefer for Word Lines and Bit Lines? Why?

4128


Please explain what is interrupt latency? How can you reduce it?

902


What is the difference between testing and verification?

959


On a scale of one to ten, rate me as an interviewer now 26 which stack is used in 8086?

974


What is a memory leak? What is a segmentation fault?

870


What is stack pointer in 8051 microcontroller?

1194