Golang Interview Questions Part 1 Theory Top 50 Question

 Most Frequently asked golang interview Questions 

       ( Based on the real interview experience)

     for Fresher 0-1 year experience.

1. Why Golang
   --> For its Simplicity, Build in Concurrency Support and Super Scalable.
2. What is Goroutine
   --> Goroutine is like a thread in java, it's lightweight than a thread useful to achieve concurrency in Go. https://golangbot.com/goroutines/
3. How to communicate between goroutines?
   --> By Using Channels we can communicate between Goroutines.
4. What is mutex?
   -- > https://golangbot.com/mutex/
5. What is synchronization in go
   --> https://golang.org/pkg/sync/
6. How to achieve concurrency in Go 
   --> By Using Goroutines.
7. What is Channels in go?
   --> https://golangbot.com/channels/
8. What are the Types of Channels?
   --> https://golangbyexample.com/channel-golang/
9. What is Buffered Channel and Unbuffered Channel explain?
   --> https://golangbot.com/channels/
10. How to avoid deadlock in a goroutine?
    --> https://www.geeksforgeeks.org/golang-deadlock-and-default-case-in-select-statement/
11. How Goroutines Works?
    --> https://golangbyexample.com/goroutines-golang/
12. What is a method in Go?
    --> https://medium.com/rungo/anatomy-of-methods-in-go-f552aaa8ac4a
13. What is the anonymous function?
    --> https://www.geeksforgeeks.org/anonymous-function-in-go-language/
14. What is the Variadic function?
    --> https://www.geeksforgeeks.org/variadic-functions-in-go/
15. Explain Slices in Go in detail how they differ from another language?
    --> https://golangbyexample.com/slice-in-golang/
16. What is Closures in go?
    --> https://www.geeksforgeeks.org/closures-in-golang/
17. What is an interface in Go?
    --> https://golangbyexample.com/interface-in-golang/
18. Go is Object-Oriented Langauge?
    --> No
19. Explain the OOPs concept.
    --> https://www.youtube.com/watch?v=pTB0EiLXUC8
          https://golangbyexample.com/tag/oop/
20. How to create a basic server in Go?
    --> https://gobyexample.com/http-servers
21. What are the basic data structures in Go?
    --> https://medium.com/@victorsteven/understanding-data-structures
    
    
22. What is reflection
    --> https://golangbot.com/reflection/
23. What is byte [] slice
    --> https://medium.com/@tyler_brewer2/bits-bytes-and-byte-slices-in-go
24. How to create a Public/Private function in go (Access modifier in Go?)
    --> We use Capital name(First Char Capital) for the function to make it Public and small letter for Private function.
25. Does go function return multiple values?
    --> Yes, https://www.geeksforgeeks.org/golang-program-that-uses-multiple-return-values/
26. Difference between concurrency and Parralism?
    --> https://golangbot.com/concurrency/
27. What is a map in go?
    --> https://medium.com/rungo/the-anatomy-of-maps-in-go-79b82836838b
28. Difference between new and make?
    --> https://dave.cheney.net/2014/08/17/go-has-both-make-and-new-functions-what-gives
29. What is Worker Pool and WaitGroup?
    --> https://golangbot.com/buffered-channels-worker-pools/
30. How map prints data
    --> https://golangbyexample.com/different-ways-iterating-over-map-go/
31. What is a rune?
    --> https://www.bogotobogo.com/GoLang/GoLang_byte_and_rune.php
32. How Append function Works?
    --> https://yourbasic.org/golang/append-explained/
33. What is the REST API?
    --> https://www.smashingmagazine.com/2018/01/understanding-using-rest-api/
          https://dev.to/moficodes/build-your-first-rest-api-with-go-2gcj
34. What is Middleware?
    --> https://www.redhat.com/en/topics/middleware/what-is-middleware
35. What is microservices?
    --> https://www.redhat.com/en/topics/microservices/what-are-microservices
36. How to handle error in go? 
    --> https://medium.com/rungo/error-handling-in-go-f0125de052f0
37. What is the Defer keyword?
    --> https://golangbot.com/defer/
38. What is Recover?
    --> https://golangbot.com/panic-and-recover/
39. Difference between function and method?
    --> https://www.sohamkamani.com/golang/functions-vs-methods/
40. What is the empty interface?
    --> https://dev.to/flrnd/understanding-the-empty-interface-in-go-4652
41. What is a struct type?
    --> https://golangbyexample.com/struct-in-golang-complete-guide/
42. What is Enum in go?
    --> https://blog.learngoprogramming.com/golang-const-type-enums-iota-bc4befd096d3
43. What is Go Module?
    --> go-modules
44. How to manage dependency in Go?
    --> https://golangbyexample.com/packages-modules-go-first/
45. What is Packages in go?
    --> https://medium.com/rungo/everything-you-need-to-know-about-packages-in-go
46. What is Select in go?
    --> https://golangbyexample.com/select-statement-golang/
47. What is IOTA?
    --> https://golangbyexample.com/iota-in-golang/
48. What is panic in go how to handle it?
    --> https://www.digitalocean.com/community/tutorials/handling-panics-in-go
49. Do you know net/http package?
    --> https://codegangsta.gitbooks.io/building-web-apps-with-go/content/http_basics/index.html
50. What is JSON Encoding and Decoding?
    --> https://yourbasic.org/golang/json-example/
    
    

In the next article Part 2 we will see coding interview question.

https://gophersgo.blogspot.com/2021/01/golang-interview-questions-part-2.html 

Thanks for reading, keep Go'ing.