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Go Programming Interview Questions and Answers

Go Programming Interview Questions and Answers

In case you’re searching for Go Programming Interview Questions and Answers for Experienced or Freshers, you are at the correct place. Additionally Go Programming Online Training will introduce the topics to learners like protocols, data types, RFC, JSON, garbage collection, arrays, and dynamic type. Go programming directly compile with the machine code, suitable for cross platform, fast in the compilation, creates one executable file, reliable and strong with static typing.   Google, Uber, daily motion, Twitch, sendgrid, fabric, and medium are some of the big companies using Go Programming. Go Programming Online Course will end up with the following interview question and answer which makes the concepts with deeper analysis perspective. Interviews are the interesting challenges to win over the competition and we understand the minds of the employer in terms of knowledge
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Best Go Programming Interview Questions and Answers

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Q1) What is Google Go?

Answer: Google Go also known as Golang is the high-level programming language created at the Google by the team of the most famous developers including Obert Griesemer, Ken Thompson and, Rob Pike. This language was designed in the first place for the system –based programming.

Q2) What are the benefits of using Google Go for system programming?

Answer: The Google Go is the open-source programming language which saves the developer from the hassle of paying for license fees. Apart from this, another prime reason to use Go is it makes software development easy, fast and reliable.

Q3) Who is the father of Google Go programming?

Answer: The programming was created by the team of Robert Griesemer, Ken Thompson and Ron Pike at the Google back in 2009. So, it means the language is around for a decade now.

Q4) Explain the process of using custom packages in Google Go?

Answer: If you are thinking about creating a separate Go tablet for personal use, then you can code like below:

  • Under the heading of the directory, you can place your directory with personal library files
  • This path is relevant to the root of your project.

For instance: – Src/your project/yourlib/yourlib.go…..main.go.
Main.go is the place where you can import yourproject/yourlib.

Q5) Can you use Generic programming with Google Go?

Answer: No, Google Go cannot use generic programming while developing software as the Go language doesn’t support it.

Q6) What do you understand by “case sensitive language’’? Is Google case sensitive?

Answer: Case sensitive languages are those languages that accept commands in the uppercase and couldn’t or fail to respond if the developer enters more two characters in lowercase. Yes, the Google Go programming falls into the category of case sensitive language which means users need to enter all commands in uppercase.

Q7) Describe the workspace in Google Go

Answer: Workspace is what contains the primary codes of Google Go. The workspace is basically arranged into three different directories, all linked to its root:

  • ‘Src’ directory that carries the Go source files in the form of packages
  • ‘bin’ directory that carries executable commands
  • ‘pkg’ directory that carries the package objects

Q8) Describe the different built-up supports in Go programming?

Answer: There are various built-up supports in the Google Go and some of them are described below:

  • Web servers
  • Compression
  • Containers
  • Cryptography
  • Database

Q9) How you can write Multiple strings in Google Go Programming?

Answer: In order to write multiple strings in Google Go, you need to leverage the raw strings where the strings will be delimited by the quotes.

Q10) Describe the role of break statement in the Go programming?

Answer: The break statement plays an important role by eliminating the need to switch statement or transfer to the statement by following “for loop”.

Q11) Why Go developers use Goto statement during programming?

Answer: The key objective of using the Goto statement is to alter the execution of the program. However, many developers use it transfers the control to the labeled statement in the very same program.

Q12) Describe the concept of GOPATH in the Go Programming?

Answer: The GOPATH is the environment variable that determines the correct location of the Workspace. During the G coding, it is the only environment variable you need to set-up and the rest will be done.

Q13) Does the Go Programming support the function overloading?

Answer: No, unlike other languages, Go is high-level programming that doesn’t support function or method overloading.

Q14) Why developers use pointers in the Go programming?

Answer: the pointer is used in the Go programming to hold down the address of a variable.

Q15) Does it support the pointer arithmetic?

Answer: Similar to the function/method overloading, Go programming doesn’t support the pointer arithmetic.

Q16) Describe the dynamic type declaration in Google Go?

Answer: Dynamic type declaration is used along with the compiler to determine the type of the variable which depends upon the value it possesses. For compiler, it is not necessary to have a certain type of variable.

Q17) Does Google Go allow you to declare multiple variables in a single declaration?

Answer: Yes, in the Google Go you can declare various types of variables in a single declaration.

Q18) What do you learn by the function closure?

Answer: Function closure refers to the anonymous functions that are generally used in the dynamic programming in Google Go.

Q19) What is the default value of the global variable, local variable and pointer variables?

Answer: The default value of global, local, and pointer variables are respectively; as their corresponding are 0, 0 and nil. If represented in the tabular format the variables are:

  • Global variable = corresponding 0 value
  • Local variable = corresponding 0 value
  • Pointer variables = corresponding Nil value

Q20) Distinguish the Actual Parameters from Formal Parameters?

Answer: Actual parameters are the calling end parameters that are directly sent to the function whereas the Formal Parameters are receivable parameters that developers receive from the function.

Q21) Explain the methods in Google Go?

Answer: When it comes to programming, Google Go supports especial functions known as methods. In the Go programming “receivers” represent the containers of functions. The receiver function can be used to call function leveraging “.” Operator.

Q22) What are Rvalue and Lvalue?

Answer: As you can already figure out from the term “Rvalue” refers to the right side of the assignment operator whereas the “Lvalue” is the left side of the assignment operator. When it comes to system programming, “Lvalue” should be designated according to a variable not a constant.

Q23) What do you understand by Token?

Answer: In the programming, the token can denote various things such as a keyword, a constant, an identifier, a string or just a symbol.

Q24) What is the key word that is used to perform the unconditional branching?

Answer: Goto is the key word that is necessary to perform the unconditional branching in Go programming.

Q25) Define the array?

Answer: Array denotes a precise collection of data items under a common heading.

Q26) Why do we use Nil pointer in Go?

Answer: In the Go programming Nil refers to the value of the pointer variable in case if no address is assigned to you. Generally, it is done during the time of variable declaration.

Q27) Describe structure in Go?

Answer: The structure is another term used in Go programming to define different data types.

Q28) How can you determine the presence of the element in a slice?

Answer: Len() functions return can help to determine the presence of the element in a slice.

Q29) How to check the variable type in runtime?

Answer: An especial switch is known as the “type switch” is used to check the variables in runtime.

Q30) Describe how would you delete an entry from the Go map?

Answer: Delete () is used to delete any entry from the Go map. However, in order to delete the entry, the user must have the map and corresponding key.

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