Exam 70-486 All Questions

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Exam 70-486 topic 1 question 38 discussion

Actual exam question from Microsoft's 70-486

Question #: 38
Topic #: 1

You are developing an ASP.NET MVC application that provides instant messaging capabilities to customers.
You have the following requirements:
✑ Messages must be able to be sent and received simultaneously.
✑ Latency and unnecessary header data must be eliminated.
✑ The application must comply with HTML5 standards.
You need to design the application to meet the requirements.
What should you do?

A. Configure polling from the browser.
B. Implement long-running HTTP requests.
C. Implement WebSockets protocol on the client and the server.
D. Instantiate a MessageChannel object on the client.

Show Suggested Answer

Suggested Answer: D 🗳️

by daniel_lobo at Oct. 14, 2019, 9:35 p.m.

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daniel_lobo

Highly Voted 5 years, 8 months ago

Correct answer is C. D is for creating a message channel between an web page and an embedded iframe.

upvoted 21 times

Darshu

5 years, 5 months ago

how come D , correct?

upvoted 1 times

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Kayes

Highly Voted 5 years, 6 months ago

Yes, correct answer is C.

upvoted 19 times

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Leodolz

Most Recent 4 years, 5 months ago

Looks like it's D because it asks for communications between clients, for this requirement a Message Channel is more suitable as Web Sockets are more designed for Client-Server communications

upvoted 1 times

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slobex

4 years, 8 months ago

https://stackoverflow.com/questions/29620567/difference-between-messagechannel-and-websockets

upvoted 2 times

Abou_riyad

4 years, 7 months ago

Thank you, this is helpful

upvoted 1 times

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eggzamtaker

4 years, 9 months ago

Fail to see how it is D. C seems correct.

upvoted 2 times

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zozox

4 years, 10 months ago

D is correct in HTML5 - Web messaging feature

upvoted 2 times

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tanujgyan

5 years, 1 month ago

Correct answer is C. Other dumps also talk about it and also this question was asked on stackoverflow

upvoted 3 times

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Paulo1

5 years, 2 months ago

WebSockets is used to send data over network, usually between a browser and a server. Messaging API is used to send data between threads / processes within a single browser. Correct answer: C

upvoted 4 times

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SirRocko

5 years, 3 months ago

D - Socket used for Client/Server, Channel used for Client/Client

upvoted 2 times

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SibuAbraham

5 years, 3 months ago

What is the correct answer?

upvoted 2 times

sdGuru

5 years, 3 months ago

I would choose C. Maybe this will make it clear: WebSockets is used to send data over network, usually between a browser and a server. Messaging API is used to send data between threads / processes within a single browser.

upvoted 8 times

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