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UPS stands for Uninterruptible Power Supply, a device that provides emergency power to a load when the input power source fails.
UPS is used to protect electronic equipment from power surges, outages, and fluctuations.
It typically consists of a battery backup, surge protector, and voltage regulator.
UPS systems come in different sizes and capacities to meet the needs of various applications.
Examples of UPS brands include
Yes, I have knowledge about computers.
I have experience troubleshooting computer hardware and software issues.
I am familiar with operating systems like Windows and Linux.
I have knowledge of networking and internet protocols.
I have worked with computer peripherals like printers and scanners.
Control + C is a keyboard shortcut used to interrupt a process in a command line interface.
Control + C sends a SIGINT signal to the currently running process, causing it to terminate
This shortcut is commonly used to stop a program or command that is running indefinitely
It is a way to gracefully exit a process without forcibly killing it
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I applied via Naukri.com and was interviewed in Aug 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Feb 2020. There were 6 interview rounds.
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.
Bubble sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements and swaps them if they are in the wrong order.
Start from the first element and compare it with the next element
If the next element is smaller, swap them
Repeat this process for all elements in the array
Continue this process until no more swaps are needed
A program to print all prime numbers
Take input from user for range of numbers
Loop through the range and check if each number is prime
Print the prime numbers
Hashmap is a data structure that stores key-value pairs and allows constant time access to values based on their keys.
Hashmap uses a hash function to map keys to indices in an array.
Collisions can occur when multiple keys map to the same index, which can be resolved using techniques like chaining or open addressing.
Examples of hashmap implementations include Java's HashMap class and Python's dict type.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows code reuse and promotes code organization.
The existing class is called the parent or superclass, and the new class is called the child or subclass.
The child class inherits all the properties and methods of the parent class and can also add new properties and methods.
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posted on 10 Sep 2020
I applied via Company Website and was interviewed in Aug 2020. There were 3 interview rounds.
Connecting to a database has multiple options depending on the type of database and programming language used.
For SQL databases, options include using JDBC for Java, ODBC for C++, and ADO.NET for C#.
For NoSQL databases, options include using MongoDB's driver for Python or Node.js.
ORMs like Hibernate and Entity Framework can also be used to abstract away the database connection details.
Connection strings are used to spe...
I applied via Walk-in and was interviewed in Mar 2021. There was 1 interview round.
I applied via Company Website and was interviewed in Dec 2020. There was 1 interview round.
I applied via Campus Placement and was interviewed in Nov 2020. There were 6 interview rounds.
OOPs concepts are the fundamental principles of object-oriented programming.
Encapsulation - binding data and functions that manipulate the data
Inheritance - creating new classes from existing ones
Polymorphism - ability of objects to take on many forms
Abstraction - hiding implementation details and showing only functionality
Storage classes in C define the scope and lifetime of variables.
There are four storage classes in C: auto, register, static, and extern.
Auto variables are local to a block and have automatic storage duration.
Register variables are stored in CPU registers for faster access.
Static variables have a lifetime throughout the program and are initialized only once.
Extern variables are declared outside any function and can be a
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