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Deutsche Telekom Digital Labs
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I applied via Recruitment Consulltant and was interviewed in Aug 2023. There were 3 interview rounds.
A class is a blueprint for creating objects in object-oriented programming.
Classes define the properties and behaviors of objects.
Objects are instances of classes.
Classes can inherit properties and behaviors from other classes.
Encapsulation, inheritance, and polymorphism are key concepts in class-based programming.
Code for star pattern using nested loops
Use nested loops to print the desired pattern
Outer loop controls the number of rows and inner loop controls the number of stars in each row
Example: for a pattern with 5 rows, the code would involve two nested loops to print stars in a pyramid shape
A linked list is a data structure where each element is a separate object, connected to the next element by a pointer.
Consists of nodes where each node contains data and a reference to the next node
Dynamic in size and can grow or shrink during execution
Common operations include insertion, deletion, and traversal
Example: Singly linked list, Doubly linked list, Circular linked list
Public and private sectors differ in ownership, funding, and management.
Public sector is owned and operated by the government, while private sector is owned and operated by individuals or companies.
Public sector is funded by taxpayer money, while private sector is funded by investors or owners.
Public sector is managed by government officials, while private sector is managed by business owners or executives.
OOPs stands for Object-Oriented Programming and protocols are a set of rules for communication between devices.
OOPs is a programming paradigm that uses objects and classes to design applications.
Protocols are a set of rules that define how data is transmitted between devices.
In OOPs, objects have attributes and methods that define their behavior.
Examples of OOPs languages include Java, C++, and Python.
Examples of proto
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I applied via Recruitment Consultant and was interviewed in Nov 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed in Mar 2021. There was 1 interview round.
I applied via Referral and was interviewed before Mar 2021. There were 2 interview rounds.
Grammar and analytical questions
I applied via Naukri.com and was interviewed in Apr 2021. There was 1 interview round.
HANA is an in-memory database and application development platform developed by SAP.
HANA stands for High-Performance Analytic Appliance.
It allows real-time processing of large amounts of data.
It can be used for data warehousing, analytics, and application development.
HANA is used by businesses to gain insights from their data and make better decisions.
Examples of companies using HANA include Coca-Cola, Nestle, and Merc
I applied via Walk-in and was interviewed before May 2021. There were 4 interview rounds.
Basic grammar questions
Device Manager is a tool in Windows that allows users to view and manage hardware devices installed on their computer.
It displays a list of all the hardware devices connected to the computer.
Users can update, disable, or uninstall device drivers using Device Manager.
It can be accessed by right-clicking on the Windows Start button and selecting Device Manager.
Common hardware devices listed in Device Manager include netw
Uninstalling/installing software involves different steps depending on the operating system used.
For Windows, go to Control Panel > Programs and Features > select the software > click Uninstall
For Mac, drag the software to the Trash or use a third-party uninstaller app
For Linux, use the package manager or command line to uninstall/install software
Make sure to save any important data before uninstalling software
Always d...
I applied via Walk-in and was interviewed before Nov 2021. There were 4 interview rounds.
General knowledge, Maths questions.
An abstract class is a class that cannot be instantiated and is used as a base class for other classes.
An abstract class can have abstract methods that must be implemented by its subclasses.
Abstract classes can have non-abstract methods and fields.
An abstract class can be used to define a common interface for a group of related classes.
Example: Animal is an abstract class and Dog, Cat, and Bird are its subclasses.
Examp...
I applied via Recruitment Consultant and was interviewed in Feb 2021. There was 1 interview round.
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