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EDITx is an open IT Library of questions to share and gain knowledge. Become an EDITx author because you care: share your knowledge to fit everyone benefit with a quality IT education.

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As contributor of the IT library, you allow others to use your questions, in the same way you can make use of theirs. Nevertheless, you keep the intellectual property on your work and will be notified any time that an author is using your questions or when someone answers your questions. Moreover, your privileged status allows you to set up private and public tests, to share your questions with your students, friends, colleagues or acquaintances and to get the results in real time.

... is what you give !

To become an EDITx Author, you just need to set up 5 QCM questions, in the field of your choice, and indicate the right answer. If your questions allows a better "Education in IT for X", you will receive the status and advantages of an EDITx Author.

Post date Author Category Body Stats
21.08.2019
José San Román
VP of Engineering at ING Bank Spain
Java

What are the differences between a HashMap and a Hashtable?

714 answers
445 good - 269 bad
 
09.09.2019
Damien Molot
Ingénieur d'études at SoftFluent
.NET

What does the following expression return :

915 answers
462 good - 453 bad
 
26.03.2018
Sébastien Combéfis
Lecturer at ECAM
Bebras

Les castors aiment nager de la manière la plus cool possible.

880 answers
324 good - 556 bad
 
21.08.2019
Bebras Community
Bebras Junior Fr

Il y a des énormes soldes dans ton magasin favori.

650 answers
195 good - 455 bad
 
26.03.2018
Sébastien Combéfis
Lecturer at ECAM
Bebras

Les castors aiment l’eau propre.

724 answers
234 good - 490 bad
 
21.08.2019
Katia Aresti
Senior Software Engineering at Red Hat EMEA
Algorithmic

Which sorting algorithm is used by `java.util.Arrays.sort` method?

541 answers
186 good - 355 bad
 
21.08.2019
Thierry Leriche-Dessirier
Architecte, Développeur full stack, Rédacteur pour Developpez.com, Concepteur profil4.com & Professeur de Génie Logiciel at Société Générale
Java

What does it print ?

232 answers
50 good - 182 bad
 
26.03.2018
Sébastien Combéfis
Lecturer at ECAM
Bebras

On dispose de deux types de machines qui permettent de générer du texte.

473 answers
353 good - 120 bad
 
21.08.2019
Vladimir Dejanovic
Founder & Chairman of Amsterdam Java User Group - IT Manager / Chapter Lead at ING
Java

Which of this are immutable Objects ? Select all that apply.

899 answers
123 good - 776 bad
 
21.08.2019
Carlos Matos
Java

What is the output of the following code?

367 answers
182 good - 185 bad
 
21.08.2019
Gilles Flisch
Microsoft Tailor Made Development Manager at Elia
UWP .NET

To retrieve an ancestor in the VisualTree in Uwp I have to use

602 answers
125 good - 477 bad
 
21.08.2019
Philippe Baecke
Professor of Marketing & Data Analytics at Vlerick Business School
Big Data analytics

Which of the following predictive techniques is most easy to explain to business?

294 answers
187 good - 107 bad
 
26.03.2018
Sébastien Combéfis
Lecturer at ECAM
Bebras

Castor Simon aime jouer au « Parc des Castors ».

497 answers
290 good - 207 bad
 
21.08.2019
Sébastien Combéfis
Lecturer at ECAM
Business Analyst

Which one of the following affirmations is not a good object oriented design principle?

176 answers
60 good - 116 bad
 
21.08.2019
Brecht Billiet
Frontend software expert/entrepreneur & Co-Founder at Strongbrew
Angular

When we register an Injectable like this: @Injectable({providedIn: 'root'}), where is the...

404 answers
361 good - 43 bad
 
21.08.2019
Sébastien Combéfis
Lecturer at ECAM
IT Student

What is defining the following definition ?

89 answers
86 good - 3 bad
 
21.08.2019
Pierre-Emmanuel Dautreppe
.Net Evangelist and Agile Coach at Pyxis Belgium
.NET

You define an extension method like this

205 answers
33 good - 172 bad
 
23.09.2019
Charles Perez
Associate Professor & Co-head of chair Disruptive Digital Data at PSB Paris School of Business
System design

In the UML modelling language, which of these is not a possible relationship between cases :

317 answers
47 good - 270 bad
 
21.08.2019
Sébastien Combéfis
Lecturer at ECAM
C

A function can be assigned to a variable and then be called thanks to this variable.

84 answers
38 good - 46 bad
 
21.08.2019
Mercedes Ruiz Carreira
Associate Professor at University of Cádiz
Database

The difference between an INNER and an OUTER join is:

723 answers
574 good - 149 bad
 
12.09.2019
Stefan Edlich
Machine Learning

How do you measure success in machine learning?

119 answers
35 good - 84 bad
 
21.08.2019
Aurélien Colmant
Maître-assistant en Informatique de Gestion at HELHa
Java

A subclass inherits directly from...

154 answers
53 good - 101 bad
 
21.08.2019
Louis J. Mercken
Chairman of the Challenge Jury, Co-Founder Threon, Currently Senior Advisor to the Threon CEO & Board of Directors at Threon
Project Management

There are several methods for conflict resolution.

58 answers
36 good - 22 bad
 
21.08.2019
Bebras Community
Bebras

You are tidying up your kitchen.

703 answers
226 good - 477 bad
 
21.08.2019
Patrick Bellot
Java

If you don't allow the value of an attribute to be modified after initialization, which keyword...

248 answers
186 good - 62 bad
 
26.03.2018
Sébastien Combéfis
Lecturer at ECAM
Bebras

Fidel Castor est un vrai bosseur.

528 answers
267 good - 261 bad
 
21.08.2019
Gilles Flisch
Microsoft Tailor Made Development Manager at Elia
AI .NET

How does one call the algorithm that tries to partition data into a fixed number of clusters so...

581 answers
262 good - 319 bad
 
21.08.2019
Paolo Cazzaniga
Assistant Professor at University of Bergamo
Artificial intelligence

What is the theorem stating that any optimization algorithms are equivalent when their...

937 answers
203 good - 734 bad
 
21.08.2019
Maxim Salnikov
Azure Developer Technical Lead at Microsoft
Angular

Which statement(s) is/are correct about Pure Pipes?

167 answers
140 good - 27 bad
 
21.08.2019
Bo Vandersteene_1
Owner at Reibo
Angular

*ngFor on (large) lists in Angular can be tweaked, but how?

750 answers
707 good - 43 bad