10+ Digital Engineer Interview Questions and Answers

UiPath is the most preferred RPA tool due to its user-friendly interface, scalability, and extensive community support.

• UiPath has a drag-and-drop interface that makes it easy for non-technical users to create automation workflows.

• It can be easily scaled to meet the needs of small businesses and large enterprises alike.

• UiPath has a large and active community that provides support, resources, and pre-built components.

• It offers a wide range of integrations with other tools and t...read more

Blocking assignments wait for the assigned value to be calculated before moving on, while non-blocking assignments allow for concurrent execution.

• Blocking assignments use '=' operator and execute sequentially

• Non-blocking assignments use '<=' operator and allow for concurrent execution

• Blocking assignments can cause race conditions if not used carefully

• Non-blocking assignments are commonly used in Verilog for modeling hardware behavior

UiPath has three types of workflows: Sequence, Flowchart, and State Machine.

• Sequence: linear automation process

• Flowchart: visual representation of a process with decision points

• State Machine: automation process with states and transitions

• Examples: Sequence - login process, Flowchart - decision-making process, State Machine - order processing

Design a circuit to predict majority ones in a given input

• Use a majority gate to determine if the input has more ones than zeros

• Implement a comparator to compare the number of ones and zeros in the input

• Utilize flip-flops to store and compare the bits in the input

Use 2:1 muxes to create a 3 input XOR gate.

• Connect two of the inputs to the select lines of the muxes.

• Connect the third input to the data input of one of the muxes.

• Connect the outputs of the two muxes to the inputs of a third mux to get the XOR output.

A 3-input XNOR gate truth table shows the output based on the inputs being equal or not.

• XNOR gate output is 1 when all inputs are equal, and 0 when inputs are not equal

• The truth table for a 3-input XNOR gate will have 8 rows (2^3) to cover all input combinations

• Example: Input A=0, B=1, C=0 will result in output 0

Different types of memory units include RAM, ROM, cache memory, virtual memory, and flash memory.

• RAM (Random Access Memory) - volatile memory used for temporary storage

• ROM (Read-Only Memory) - non-volatile memory used for permanent storage

• Cache Memory - high-speed memory used to store frequently accessed data

• Virtual Memory - uses disk space as an extension of RAM

• Flash Memory - non-volatile memory used in USB drives, SSDs, and memory cards

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person.

• Answer: Pencil

• Taken from a mine refers to graphite, which is used to make pencils

• Shut up in a wooden case refers to the wooden casing of a pencil

• Used by almost every person refers to the widespread use of pencils

Mergesort is a popular sorting algorithm that uses a divide-and-conquer approach to sort an array.

• Divide the array into two halves

• Recursively sort each half

• Merge the sorted halves back together