Deutsche Telekom Digital Labs Interview Questions, Process, and Tips

Q1. Have you worked on swift
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Q2. What is a class
Ans. 
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.
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Q1. Write code for star paattern
Ans. 
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
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Q2. What is linked list
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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
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Q3. Differnce between public private
Ans. 
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.
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Q4. Whats is oops and protcols
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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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Q1. Total time waste quesrtions
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Q2. Basic programing questions as em was having very less knowledge
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Q1. Which is your favourite product and how would you improve it
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Q2. What are your top 3 achievements
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Q1. Design a cola can dispursal machine at an airport for blind people
Ans. 
A cola can dispensing machine designed for blind people at airports
• Include braille labels for different soda options

• Utilize voice activation for selecting and dispensing drinks

• Provide tactile buttons for navigation and confirmation

• Offer audio feedback for successful dispensing

• Ensure easy reach and accessibility for all users
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Q1. Why do you want to change
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Q2. What are your strengths and weaknesses
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Q1. What are your future aspirations
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Q2. How do you see adding value to the org
Ans. 
I see adding value to the organization by implementing innovative branding strategies, enhancing customer engagement, and driving revenue growth.
• Developing and executing creative branding campaigns to increase brand awareness

• Utilizing data analytics to identify target audience and optimize marketing efforts

• Collaborating with cross-functional teams to ensure brand consistency across all channels

• Implementing customer fee...read more
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Q1. Two Sum Problem
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Q1. Slenium is good tool or manual testing is good?
Ans. 
Selenium is a good tool for automated testing, while manual testing is essential for certain scenarios.
• Selenium is great for automating repetitive test cases and regression testing

• Manual testing is important for exploratory testing and usability testing

• Combining both Selenium and manual testing can provide comprehensive test coverage
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Q2. What is test framework?
Ans. 
A test framework is a set of guidelines or rules used for creating and designing test cases and test scripts.
• Test framework provides structure and organization for testing activities

• It includes tools, libraries, coding standards, and best practices

• Examples include Selenium for web testing, JUnit for unit testing
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Q1. How to do automation testing?
Ans. 
Automation testing involves using tools to execute test cases and compare actual outcomes with expected outcomes.
• Identify test cases that can be automated

• Select appropriate automation tools like Selenium, Appium, etc.

• Develop test scripts to automate test cases

• Execute test scripts and analyze results

• Integrate automation testing into CI/CD pipeline for continuous testing
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Q1. Basic useless question were asked by some non technical person
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Q1. Basic useless questions by non technicial person
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