Exam MB-500 topic 3 question 53 discussion

Actual exam question from Microsoft's MB-500

Question #: 53
Topic #: 3

A company uses Dynamics 365 Finance.

You implement an abstract class named Car.

The Car class has the following:

• A real member called weight that is used to store the weight of the car.
• An abstract getWeight method that returns the value of the weight member.

The Car class code is:

You must create a child class named BigCar.

You need to implement the Car class by using the BigCar child class.

Which code segment should you use?

A. class BigCar extends Car { void new(real _weight) { weight = _weight; } public real getweight() { return weight; }}
B. class BigCar implements Car { void new(real _weight) { weight = _weight; } public real getweight() { return weight; }}
C. class BigCar extends car { public real getWeight() { return weight; }}
D. class BigCar : car { void new(real _weight) { weight = _weight; } public real getweight() { return weight; }}

Show Suggested Answer

Suggested Answer: A 🗳️

by DanSinbad at April 10, 2023, 1:17 p.m.

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_Test

Highly Voted 1 year, 5 months ago

A is correct because with option C it is not possible to assign a value to variable weight. It does not make sense to declare a variable without using it.

upvoted 8 times

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abhig535

Most Recent 3 months ago

Selected Answer: A

A is correct because: 1. An abstract class needs to be extended not implemented, so options B and D are out. 2. A constructor is needed to initialize the weight field so option C is out. 3. Syntax wise, abstract class requires method to be overriden.

upvoted 1 times

globeearth

2 months, 3 weeks ago

good description. Agreed.

upvoted 1 times

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2d4d146

5 months, 3 weeks ago

Selected Answer: A

A is correct because weight is not assigned in Car class to assign value we need to add a new method

upvoted 1 times

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Ali20

11 months, 3 weeks ago

Selected Answer: A

A is correct because: parent class name is Car but in C the parent class name is car and method name in parrent class is getweight but in C is getWeight

upvoted 2 times