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Exam 70-483 topic 2 question 39 discussion

Actual exam question from Microsoft's 70-483

Question #: 39
Topic #: 2

DRAG DROP -
You are developing a C# console application that outputs information to the screen. The following code segments implement the two classes responsible for making calls to the Console object:

When the application is run, the console output must be the following text:

Log started -

Base: Log continuing -

Finished -
You need to ensure that the application outputs the correct text.
Which four lines of code should you use in sequence? (To answer, move the appropriate classes from the list of classes to the answer area and arrange them in the correct order.)
Select and Place:

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Suggested Answer:

Note:
✑ The abstract keyword enables you to create classes and class members that are incomplete and must be implemented in a derived class.
✑ An abstract class cannot be instantiated. The purpose of an abstract class is to provide a common definition of a base class that multiple derived classes can share.

by supersunny at July 24, 2019, 9:22 a.m.

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Andrei

Highly Voted 5 years, 10 months ago

6,5,1,4

upvoted 28 times

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asdf652434

Highly Voted 5 years, 9 months ago

To get the output: Log started Base: Log continuing Finished you need BaseLogger logger = new Logger(); logger.Log("Log started"); logger.Log("Base: Log continuing"); ((Logger)logger).LogCompleted();

upvoted 21 times

asdf652434

5 years, 9 months ago

"new" hides the implementation of the base class but it also means you need a "Logger" reference to access the "Logger" implementation

upvoted 8 times

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DaGrooveNL

Most Recent 4 years, 5 months ago

FINAL ANSWER: 6. BaseLogger logger = new Logger(); 5. logger.Log("Log started"); 1. logger.Log("Base: Log continuing"); 4. ((Logger)logger).LogCompleted();

upvoted 1 times

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HgstExam

4 years, 9 months ago

Anwser is wrong, confirmed the following: BaseLogger logger = new Logger(); logger.Log("Log Started"); //always uses Logger logger.Log("Base: Log Continuing"); //cannot use BaseLogger (virtual) ((Logger)logger).LogCompleted(); //need to cast to use Logger (new)

upvoted 7 times

JorgeGris

4 years, 6 months ago

Tested: https://dotnetfiddle.net/QVGQSp

upvoted 1 times

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thiemamd

4 years, 11 months ago

Tested! //6 5 1 4 BaseLogger logger = new Logger(); logger.Log("Log Started"); logger.Log("Base: Log Continuing"); ((Logger)logger).LogCompleted();

upvoted 3 times

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majco333

5 years, 7 months ago

6,5,2,4 I try it: BaseLogger logger = new Logger(); logger.Log("Log started"); ((BaseLogger)logger).Log("Log continuing"); ((Logger)logger).LogCompleted();

upvoted 2 times

majco333

5 years, 6 months ago

It's bad. Tested: BaseLogger logger = new Logger(); logger.Log("Log started"); logger.Log("Base: Log continuing"); ((Logger)logger).LogCompleted();

upvoted 2 times

majco333

5 years, 6 months ago

Sorry for spam. Definitely correct is: BaseLogger logger = new Logger(); logger.Log("Log started"); logger.Log("Base: Log continuing"); ((Logger)logger).LogCompleted();

upvoted 6 times

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IF_Elias

5 years, 10 months ago

6,5,1,4 the answer

upvoted 7 times

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supersunny

5 years, 11 months ago

6,5,1,7

upvoted 5 times

Codenoob

4 years, 10 months ago

Replace 7 with 4. ((Logger)logger).LogCompleted() is the correct implementation. I just tested it now.

upvoted 5 times

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