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Cerium Systems Graduate Engineer Trainee (Get) Interview Questions and Answers

Updated 5 Feb 2024

Q1. What is a diode?,can you expalin about power amplifiers?

Ans.

A diode is an electronic component that allows current to flow in one direction only. Power amplifiers are electronic devices that increase the power of a signal.

  • A diode is made up of a p-type and n-type semiconductor material.

  • It is commonly used in rectifiers, voltage regulators, and signal demodulators.

  • Power amplifiers are used to increase the power of a signal, such as in audio systems or radio transmitters.

  • They can be classified as Class A, B, AB, or C amplifiers dependin...read more

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Q2. What is race around condition and how can you overcome ?

Ans.

Race around condition occurs when two or more signals are changing at the same time, leading to unpredictable output. It can be overcome by using flip-flops.

  • Race around condition is a digital logic problem that occurs when two or more signals change at the same time, leading to unpredictable output.

  • It can be overcome by using flip-flops, which store the input signal and only change the output signal when the clock signal changes.

  • For example, in a counter circuit, if the clock...read more

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Q3. What is c language? , what is pointer?, what dynamic memory?

Ans.

C is a programming language used for system programming. Pointers are variables that store memory addresses. Dynamic memory is memory allocated during runtime.

  • C is a low-level language used for system programming

  • Pointers are variables that store memory addresses

  • Dynamic memory is memory allocated during runtime

  • Pointers are used to manipulate memory and improve performance

  • Dynamic memory allocation is done using functions like malloc() and calloc()

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Q4. Which protocols do you know and explain about it ?

Ans.

I know about various protocols such as TCP/IP, HTTP, FTP, SMTP, etc. that are used for communication over networks.

  • TCP/IP is a suite of protocols used for communication over the internet.

  • HTTP is used for communication between web servers and clients.

  • FTP is used for file transfer between computers.

  • SMTP is used for email communication.

  • Other protocols include DNS, SSH, Telnet, etc.

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Q5. What is counter, explain about synchronous counters?

Ans.

Synchronous counters are digital circuits that use clock signals to synchronize the counting process.

  • Synchronous counters are also known as parallel counters.

  • They use flip-flops to store the count value.

  • The clock signal is applied to all the flip-flops simultaneously.

  • Synchronous counters are faster and more reliable than asynchronous counters.

  • Examples of synchronous counters include binary, decade, and BCD counters.

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Q6. What is difference between filpflop and latch?

Ans.

Flip-flop is clocked while latch is level triggered.

  • Flip-flop is edge-triggered while latch is level-triggered.

  • Flip-flop stores data on the rising or falling edge of the clock signal.

  • Latch stores data when the enable signal is high.

  • Flip-flops are used in synchronous circuits while latches are used in asynchronous circuits.

  • Examples of flip-flops are D flip-flop, JK flip-flop, T flip-flop. Examples of latches are SR latch, D latch.

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Q7. Can you expalin about johnson counter?

Ans.

Johnson counter is a type of shift register circuit used in digital electronics.

  • It is a synchronous counter with a feedback path.

  • It has a sequence of states that are repeated in a cyclic manner.

  • It has a maximum count of 2^n where n is the number of flip-flops used.

  • It is used in applications such as frequency division, digital clocks, and sequence generation.

  • Example: A 4-bit Johnson counter has 8 states and can be used to generate a sequence of 8 different outputs.

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