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posted on 25 Oct 2023
Easy to medium questions
posted on 25 Jun 2024
Virtual DOM is a lightweight copy of the actual DOM in React, used for efficient updates.
Virtual DOM is a concept where a lightweight copy of the actual DOM is created in memory.
React uses the virtual DOM to efficiently update the actual DOM when there are changes in the application.
When changes are made to the virtual DOM, React calculates the most efficient way to update the actual DOM, minimizing performance impact.
Context API is a feature in React that allows sharing data between components without having to pass props through every level of the component tree.
Context API provides a way to pass data through the component tree without having to pass props down manually at every level.
It is useful for sharing global data such as themes, user authentication, or language preferences.
Context API consists of three main parts: Provider...
30 questions test of aptitide online
A microprocessor is a small electronic device that functions as the central processing unit of a computer.
Microprocessors are made up of millions of transistors that perform calculations and execute instructions.
They are commonly found in computers, smartphones, and other electronic devices.
Examples of popular microprocessors include Intel's Core series and AMD's Ryzen series.
Microprocessors process data and perform ta...
IoT stands for Internet of Things, which refers to the network of physical devices connected to the internet, allowing them to collect and exchange data.
IoT involves connecting everyday objects to the internet to enable them to send and receive data.
Examples of IoT devices include smart thermostats, wearable fitness trackers, and connected appliances.
IoT technology enables automation, remote monitoring, and data analyt
I applied via Campus Placement and was interviewed before May 2023. There were 3 interview rounds.
Normal aptitude with mostly technical questions
MOSFET stands for Metal-Oxide-Semiconductor Field-Effect Transistor. It is a type of transistor used for amplifying or switching electronic signals.
MOSFET has three terminals: gate, source, and drain.
It operates by varying the voltage applied to the gate terminal to control the flow of current between the source and drain terminals.
MOSFETs are widely used in digital and analog circuits, power amplifiers, and switching ...
Opams are software tools used for managing and monitoring software packages on Unix-like systems.
OPAM (OCaml Package Manager) - used for managing OCaml packages
APT (Advanced Package Tool) - used for managing Debian packages
YUM (Yellowdog Updater Modified) - used for managing RPM packages on Red Hat-based systems
I applied via Referral and was interviewed in Aug 2022. There were 5 interview rounds.
Be familiar to codility , medium questions
posted on 1 Apr 2021
I applied via Recruitment Consulltant and was interviewed before Oct 2022. There were 3 interview rounds.
A relay holding circuit diagram is used to keep the relay in the energized state even after the control signal is removed.
The circuit typically includes a holding contact that maintains the relay coil energized.
A latching relay can also be used for holding without continuous power supply.
Examples: ladder logic diagram with a holding contact, latching relay circuit diagram.
PNP and NPN are types of bipolar junction transistors commonly used in electronic circuits.
PNP transistor has a layer of N-type semiconductor between two layers of P-type semiconductor, while NPN transistor has a layer of P-type semiconductor between two layers of N-type semiconductor.
In a PNP transistor, current flows from the emitter to the base and then to the collector, while in an NPN transistor, current flows fro...
There are various types of sensors used for different purposes.
Temperature sensors (e.g. thermocouples, thermistors)
Pressure sensors (e.g. piezoelectric sensors)
Motion sensors (e.g. accelerometers, gyroscopes)
Proximity sensors (e.g. ultrasonic sensors)
Light sensors (e.g. photodiodes, phototransistors)
PLC stands for Programmable Logic Controller, which is a digital computer used for automation of electromechanical processes.
PLC is used to control machinery in manufacturing processes, such as assembly lines, robotic devices, or any activity that requires high reliability control.
It is programmed using a specialized computer language, typically ladder logic or function block diagram.
PLCs are commonly used in industrie...
I applied via Walk-in and was interviewed in Mar 2022. There were 2 interview rounds.
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