[FAST TRACK] QT CLASS 01 QUIZ 14

What describes an object?

• Visibility, mutability and actions
• Name, category and rules
• Noun, adjective and verb
• Properties, state and behavior

Data hiding is one of the core OO-concepts. How can you "hide" your class attributes from external classes and only allow child classes to access them? What's the corresponding UML visibility indicator?

• Mark them as private (- in UML)
• Mark them as protected (# in UML)
• Mark them as package (~ in UML)
• None of above

Which of the following describes the Decorator pattern correctly?

• This pattern allows a user to add new functionality to an existing object without altering its structure.
• This pattern is used where we need to treat a group of objects in similar way as a single object.
• This pattern hides the complexities of the system and provides an interface to the client using which the client can access the system.
• This pattern is primarily used to reduce the number of objects created and to decrease memory footprint and increase performance.

In MVC pattern, Model represents an object carrying data. It can also have logic to update controller if its data changes.

• true
• false

which of the following is correct?

• infinite loop because x always != 0
• while loop will be stopped when x = 0
• while loop do nothing because x = -1
• None of these

What is the result of the following code?

• 12
• 52
• 56
• Compiler Error

What are unit test coverage criteria?

• Instructions Coverage
• Method Coverage
• Branch Coverage
• All options

How many building options is supported in Qt?

• 0
• 1
• 2
• 3

Is it the developer responsibilty to review the OEM spec and discuss to OEM?

• Yes
• No
• Depends on type of OEM spec

Who should review the RS spec (SysRS, SRS)?

• The verifier, who uses it to create test case.
• The developer, who uses it to implement feature
• The OEM, to check whether it match the OEM spec.
• All above