GoLang Quiz (Multiple Choice Questions), GoLang Online Quiz

1 .

When was Golang first created?

A)

1996

B)

2001

C)

2005

D)

2007

Correct Answer : 2007

Explanation : “Go, also commonly referred to as golang, is a programming language developed at Google in 2007 by Robert Griesemer, Rob Pike, and Ken Thompson.

2 .

Which Company was created by Golang?

A)

Apple

B)

Facebook

C)

Google

D)

Microsoft

Correct Answer : Google

Explanation :

Go is an open source, strongly typed, compiled language written to build concurrent and scalable software. The language was invented at Google by Rob Pike, Ken Thomson, and Robert Griesemer.

Golang was designed by Google engineers and is often used there for internal projects. Google Chrome and Google Earth were created in this way. It is also used in YouTube and Google App Engine.

3 .

Who introduced golang?

A)

Rob Pike, Ken Thomson and Robert Griesemer

B)

Dennis Ritchie, Eric Schmidt and Brian Kernighan

C)

Robert Griesemer, David Drummond and Alan Mulally

D)

Ken Thomson, Patrick Pichette and Bjarne Stroustrup

Correct Answer : Rob Pike, Ken Thomson and Robert Griesemer

4 .

What is the workspace in GO?

A)

pkg contains package objects

B)

src contains GO source files organized into packages

C)

Both (A) and (B)

D)

None of the Above

Correct Answer : Both (A) and (B)

5 .

How to use custom packages in GO language?

A)

Under the directory of your project place the directory with library files

B)

Refer to the library using its path relative to the root of your workspace consisting the project

C)

Both (A) and (B)

D)

None of the Above

Correct Answer : Both (A) and (B)

6 .

_____ is a general-purpose language designed with systems programming in mind.

A)

Go

B)

Flex

C)

Django

D)

Cassendra

Correct Answer : Go

Explanation : Go is a general-purpose language designed with systems programming in mind.

7 .

Which of the following are the benefits of using Go programming?

A)

Compilation time is fast.

B)

InBuilt concurrency support

C)

Support for Interfaces and Type embdding

D)

All of the Above

Correct Answer : All of the Above

8 .

Does Go support type inheritance?

A)

Yes

B)

No

C)

None of the Above

D)

--

Correct Answer : Yes

9 .

In which of the following method of parameter passing, changes made to the parameter inside the function have an effect on the argument?

A)

call by value

B)

call by reference

C)

Both (A) and (B)

D)

None of the Above

Correct Answer : call by reference

10 .

What are all the parts of a function in GO?

A)

Parameters

B)

Function Name

C)

Return Type

D)

All of the Above

Correct Answer : All of the Above

11 .

How arrays in GO works differently than C?

A)

The size of an array is part of its type. The types [10] int and [20] int are distinct

B)

If you pass an array to a function, it will receive a copy of the array, not a pointer to it

C)

Both (A) and (B)

D)

All of the Above

Correct Answer : All of the Above

12 .

In Golang, which of the following transfers control to the labeled statement?

A)

Goto

B)

Jump

C)

Enum

D)

return

Correct Answer : Goto

13 .

Which of the following GoLang is true?

A)

Go support method overloading

B)

Go support pointer arithmetics

C)

Go is a case sensitive programming language

D)

Go support operator overloading

Correct Answer : Go is a case sensitive programming language

Explanation : Yes! Go is a case sensitive programming language and all other are not true.

14 .

Does Go support generic programming

A)

Yes

B)

No

C)

None of the Above

D)

--

Correct Answer : No

15 .

Which of the following is correct about slice in Go?

A)

Go Slice is an abstraction over Go Array.

B)

It provides many utility functions required on Array and is widely used in Go programming

C)

To define a slice, you can declare it as an array without specifying size or use make function to create the one.

D)

All of the Above

Correct Answer : All of the Above

16 .

Which of the following is not a integer type in Go?

A)

uint8

B)

uint64

C)

complex128

D)

All of the above

Correct Answer : complex128

17 .

Which of the following is true about global variables in Go?

A)

Global variables are defined outside of a function, usually on top of the program.

B)

The global variables will hold their value throughout the lifetime of your program.

C)

A global variable is available for use throughout your entire program after its declaration.

D)

All of the Above

Correct Answer : All of the Above

18 .

Which of the following is correct about ranges in Go?

A)

With maps, it returns the key of the next key-value pair.

B)

With array and slices, it returns the index of the item as integer.

C)

The range keyword is used in for loop to iterate over items of an array, slice, channel or map.

D)

All of the Above

Correct Answer : All of the Above

19 .

Which of the following is false about Golang?

A)

It is designed by Google

B)

Golang is syntactically similar to Java

C)

It is statically typed programming language

D)

None of the Above

Correct Answer : Golang is syntactically similar to Java

20 .

______ is a way to convert a variable from one data type to another data type.

A)

Type casting

B)

GoMap

C)

GoCast

D)

Interface

Correct Answer : Type casting

Explanation : Type casting is a way to convert a variable from one data type to another data type.

21 .

Which of the following is true about packages in Go?

A)

Each package has a path and name associated with it.

B)

It is a must statement as Go programs runs in packages.

C)

The first line of the program package defines the package name in which a Go program should lie.

D)

All of the Above

Correct Answer : All of the Above

22 .

______function is used to delete an entry from the map.

A)

drop()

B)

remove()

C)

delete()

D)

truncate()

Correct Answer : delete()

Explanation : delete() function is used to delete an entry from the map. It requires map and corresponding key which is to be deleted.

23 .

Go supports operator overloading.

A)

True

B)

False

C)

None of the Above

D)

--

Correct Answer : False

24 .

An lvalue may appear as either the left-hand or right-hand side of an assignment.

A)

True

B)

False

C)

None of the Above

D)

--

Correct Answer : True

25 .

What is the output of the following code snippet?

package main
  import ("fmt")
  func main() {
   x := 3
   y := &x
  fmt.Print(*y)
   *y = 4
 fmt.Println(x)
}

A)

34

B)

43

C)

44

D)

Code Error

Correct Answer : 34

26 .

Dynamic type variable declaration provides assurance to the compiler that there is one variable existing with the given type and name.

A)

True

B)

False

C)

None of the Above

D)

--

Correct Answer : False

27 .

Which of the following function returns the total number of elements present in a slice?

A)

size()

B)

cap()

C)

len()

D)

None of the Above

Correct Answer : len()

28 .

Which of the following options are correct about maps in Go?

A)

delete() function is used to delete an entry from the map.

B)

delete() function requires map and corresponding key which is to be deleted.

C)

Both (A) and (B)

D)

None of the Above

Correct Answer : Both (A) and (B)

29 .

Which of the following keyword is used in for loop to skip the remainder of its body and reiterate the loop in Go?

A)

Goto

B)

Break

C)

Both (A) and (B)

D)

Continue

Correct Answer : Continue

30 .

Can you declared multiple types of variables in single declaration in Go?

A)

True

B)

False

C)

None of the Above

D)

--

Correct Answer : True