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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.

What you get...

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
Christophe Peerens
Microsoft Technical Advisor at Neomytic
.NET

What is the correct way to find out the number of elements currently present in an...

203 answers
179 good - 24 bad
 
21.08.2019
Jurgen Van de Moere
Google Developer Expert & Owner and Front-end Architect at Jvandemo BVBA
Angular

Angular calls a component’s lifecycle hooks in a specific order.

505 answers
295 good - 210 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

You can write

synchronized (new int[0]) { }

however you shouldn't because

552 answers
224 good - 328 bad
 
21.08.2019
Raul Martinez
.Net technologies expert at RMMΛConsulting
C#

Which Main method syntax are correct:

364 answers
259 good - 105 bad
 
26.03.2018
Sébastien Combéfis
Lecturer at ECAM
Bebras

Le dessin ci-dessous présente l’arrangement de dix billes sous forme d’un triangle.

756 answers
605 good - 151 bad
 
21.08.2019
Maxim Salnikov
Azure Developer Technical Lead at Microsoft
Angular

Consider the BrowserModule and CommonModule. Which statement(s) is/are correct?

100 answers
23 good - 77 bad
 
21.08.2019
Maurice Naftalin
Java Champion, Author, Speaker, Associate at JavaSpecialists.EU & Technical Director at Morningside Light Ltd
Java
interface Foo {default String hello() { return "Foo"; } }
123 answers
43 good - 80 bad
 
21.08.2019
Charles Sabourdin
Devops / Architect Freelance at Kadena-K
Java

What happen when you compile and run that those files ?

279 answers
67 good - 212 bad
 
21.08.2019
Sébastien Combéfis
Lecturer at ECAM
IT Student

Which one of the following attacks involves the manipulation of the main memory ?

85 answers
53 good - 32 bad
 
21.08.2019
David Litvak Bruno
Ruby & Python Developer Evangelist at Contentful
Python

Given the following statement [x + 1 for x in range(10) if x % 2 == 0], what is the result:

330 answers
193 good - 137 bad
 
21.08.2019
Marc Gregoire
Founder of the Belgian C++ Users Group & Software Architect at Nikon Metrology
C++

Suppose you have the following piece of code:

343 answers
228 good - 115 bad
 
21.08.2019
David Scimè
Senior .Net Developer & Scrum Master at Freelance
Azure

Which of the following Azure Cosmos DB statements are wrong ?

603 answers
167 good - 436 bad
 
21.08.2019
Christophe Peerens
Microsoft Technical Advisor at Neomytic
.NET

How to declare a bool b as a “Nullable Types” (allowing b to be equal to true, false or null)?...

85 answers
72 good - 13 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 ?

247 answers
118 good - 129 bad
 
26.03.2018
Sébastien Combéfis
Lecturer at ECAM
Bebras
...
796 answers
490 good - 306 bad
 
21.08.2019
Simon Martinelli
Member of The Board at JUG CH, Lecturer at Berne University of Applied Science & Managing Director at 72 Services
Java
public class Lambda {

    @FunctionalInterface
    interface Function...
739 answers
527 good - 212 bad
 
21.08.2019
Gilles Flisch
Microsoft Tailor Made Development Manager at Elia
UWP .NET

Having access to internet needs to request a capability.
Which one?

509 answers
438 good - 71 bad
 
21.08.2019
Bebras Community
IT Student

Your sister invented a new world where people only have coins with the following denominations:...

116 answers
50 good - 66 bad
 
21.08.2019
Mani Sarkar
Software Craftsman, Java/JVM Developer, Conf speaker, Blogger, various dev. comm. & conf, infra/containers/virtual tech & Steering Committee M at DevoxxUK
Java

How would you refactor the below block of code, such that its performant, easy to read and...

139 answers
7 good - 132 bad
 
21.08.2019
Olivier Blazy
Maitre de Conférence at Université de Limoges
Security

Qu'est-ce qu'une vulnérabilité XSS

783 answers
451 good - 332 bad
 
21.08.2019
Damien Molot
Ingénieur d'études at SoftFluent
.NET

What does the following expression return :

188 answers
143 good - 45 bad
 
21.08.2019
Sylvain Guerin
Angular 2 Enthusiast & Digital Craftsman at ENGIE Electrabel
AngularJS

You developed an Angular 2 component named CustomerComponent in TypeScript.

722 answers
325 good - 397 bad
 
21.08.2019
Jérémy Landon
Microsoft MVP - Expert/Coach DevOps & ALM at Freelance
.NET

what is the output of the following code ?

139 answers
47 good - 92 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

The ___________ is an authorized time-phased budget that will be used to measure and monitor...

50 answers
14 good - 36 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.

422 answers
15 good - 407 bad
 
21.08.2019
David Scimè
Senior .Net Developer & Scrum Master at Freelance
.NET

What can’t be done with App Service Deployment Slots ?

791 answers
7 good - 784 bad
 
21.08.2019
Gilles Flisch
Microsoft Tailor Made Development Manager at Elia
AI .NET

We consider the simple neural network architecture described by the picture above and the...

141 answers
91 good - 50 bad
 
21.08.2019
Sébastien Aupetit
Ingénieur d'études et développement Java EE at Apside TOP
System design

We need to design two classes to hold a value: one for which the value can be modified and one...

840 answers
98 good - 742 bad
 
21.08.2019
Pierre-Emmanuel Dautreppe
.Net Evangelist and Agile Coach at Pyxis Belgium
.NET

Given the following code

98 answers
26 good - 72 bad
 
21.08.2019
Geoffrey Vandiest
Chief Technical Architect Gas Flow Management at Fluxys
DevOps

Which service in Azure can be used to implement Infrastructure as code ?

564 answers
153 good - 411 bad