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Golang Questions Set 4:

Quiz Mode

Which of the following is a valid way to declare a function in Go?

multiply func(x, y int) int

func multiply(x, y int) (int)

def multiply(x int, y int) int

function multiply(x int, y int) -> int

Solution:

Which of the following is a benefit of using interfaces in Go?

They improve the performance of Go programs

They make it easier to write concurrent programs

They allow for dynamic dispatch and polymorphism

They enable multiple inheritance in Go

Solution:

Which of the following statements is true about type assertion in Go?

It is used to create new types from existing types

It is used to convert a value from one type to another

It is used to check if a value is of a certain type

It is used to access the fields of a struct type

Solution:

Which of the following statements is true about type conversion in Go?

It is used to create new types from existing types

It is used to convert a value from one type to another

It is used to check if a value is of a certain type

It is used to access the fields of a struct type

Solution:

Which of the following statements is true about the io.Reader interface in Go?

It is used to write data to a file or network connection

It is used to read data from a file or network connection

It is used to manage memory allocation in a Go program

It is used to handle errors in a Go program

Solution:

What is the purpose of the error interface in Go?

To define a set of methods for handling errors in a Go program

To define a type for error messages in a Go program

To define a way to propagate errors up the call stack in a Go program

To define a way to catch and handle panics in a Go program

Solution:

Which of the following statements is true about type assertions in Go?

They can be used to convert an interface value to a pointer type

They always return a non-nil value

They can be used to check if an interface value implements a particular interface

They can be used to create a new type from an existing type

Solution:

Which of the following statements is true about interface embedding in Go?

It is used to combine the methods of multiple interfaces into a single interface

It is used to combine the fields of multiple struct types into a single type

It is used to define a method on an existing interface

It is used to create new interfaces from existing ones

Solution:

Which of the following is a benefit of using interfaces in Go over inheritance in object-oriented languages?

They allow for multiple inheritance in Go

They make it easier to write concurrent programs

They provide a way to enforce strict typing in a Go program

They do not rely on a type hierarchy, allowing for more flexibility in code design

Solution:

Which of the following is a benefit of using interfaces in Go when working with external libraries or APIs?

They provide a way to enforce strict typing in a Go program

They make it easier to write concurrent programs

They allow for dynamic dispatch and polymorphism

They provide a way to adapt to different APIs without changing the underlying code

Golang Questions Set 4:

Which of the following is a valid way to declare a function in Go?

Solution:

Which of the following is a benefit of using interfaces in Go?

Solution:

Which of the following statements is true about type assertion in Go?

Solution:

Which of the following statements is true about type conversion in Go?

Solution:

Which of the following statements is true about the io.Reader interface in Go?

Solution:

What is the purpose of the error interface in Go?

Solution:

Which of the following statements is true about type assertions in Go?

Solution:

Which of the following statements is true about interface embedding in Go?

Solution:

Which of the following is a benefit of using interfaces in Go over inheritance in object-oriented languages?

Solution:

Which of the following is a benefit of using interfaces in Go when working with external libraries or APIs?

Solution:

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