Broadcom Software Engineer Tester Interview Questions and Answers

Capacitors in series add reciprocally, in parallel add directly. Voltage in series is the sum, in parallel is the same.

• Capacitors in series: 1/Ctotal = 1/C1 + 1/C2

• Capacitors in parallel: Ctotal = C1 + C2

• Voltage in series: Vtotal = V1 + V2

• Voltage in parallel: Vtotal = V1 = V2

The output of the circuitry needs to be analyzed for functionality and accuracy.

• Examine the input and output signals to ensure they are within expected ranges

• Check for any noise or interference in the output

• Verify that the circuit is functioning as designed based on the specifications

• Look for any potential issues or errors in the output

The output waveforms can be drawn based on the input signal and circuit configuration.

• Understand the input signal characteristics (frequency, amplitude, etc.)

• Analyze the circuit components and their effects on the signal

• Draw the output waveform based on the input and circuit analysis

Sanity testing is a narrow and deep testing approach to check if the specific functionality is working fine after changes, while smoke testing is a broad and shallow testing approach to check if the software build is stable enough for further testing.

• Sanity testing focuses on specific functionality, smoke testing checks overall stability

• Sanity testing is usually performed after a specific change, smoke testing is perfo...read more

Regression testing is testing the entire application after changes, while retesting is testing specific areas after fixes.

• Regression testing is done to ensure that new code changes do not affect existing functionality.

• Retesting is done to verify that a specific bug or issue has been fixed.

• Regression testing involves running the entire test suite, while retesting focuses on specific test cases.

• Example: After fixing a bu...read more

Program to find repetitive words in a string

• Split the string into words using a delimiter like space

• Create a hashmap to store word frequencies

• Iterate through the words and update the hashmap

• Identify words with frequency greater than 1 as repetitive

Code to select 3 options and perform ascending, descending, and swapping operations.

• Create a list of 3 options

• Implement sorting algorithms for ascending and descending order

• Swap the positions of two options based on user input

MOSFET is a type of transistor used in electronic devices. Body Bias effect refers to the change in threshold voltage due to biasing of the body terminal.

• MOSFET stands for Metal-Oxide-Semiconductor Field-Effect Transistor.

• It has three terminals: Gate, Source, and Drain.

• The operation of a MOSFET involves controlling the flow of current between the Source and Drain terminals by applying a voltage to the Gate terminal.

• Bod...read more