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Go/Golang Online Test

The Golang Online test uses scenario-based MCQs to evaluate candidates on their knowledge of the Go programming language, including concurrency, channels, types, and memory management. The test also includes a coding question to evaluate hands-on Golang programming skills. The aim of this test is to evaluate a candidate's experience in developing and deploying scalable and efficient applications using Go.

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Screen candidates with a 35 mins test

Test duration:  35 mins
Difficulty level:  Moderate
Availability:  Ready to use
Questions:
  • 6 Go MCQs
  • 1 Go Coding Question
Covered skills:
Go Fundamentals
Variables and Types
Functions and Methods
Control Flow
Arrays and Slices
Structs and Interfaces
Concurrency and Channels
Error Handling and Testing
Packages and Libraries
File Handling
JSON and Web Services
Database Connectivity
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Adaface skill assessments measure on-the-job skills of candidates, providing employers with an accurate tool for screening potential hires.

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Use the Go/Golang Test to shortlist qualified candidates

The Go/Golang Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Understanding and applying Go fundamentals
  • Working with variables and types in Go
  • Creating and using functions and methods in Go
  • Applying control flow concepts in Go
  • Manipulating arrays and slices in Go
  • Utilizing structs and interfaces in Go
  • Implementing concurrency and using channels in Go
  • Handling errors and performing testing in Go
  • Working with packages and libraries in Go
  • Manipulating files in Go
  • Interacting with JSON and web services in Go
  • Establishing database connectivity in Go
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Screen candidates with the highest quality questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 15,000+ questions. The actual questions on this Golang Online Test will be non-googleable.

🧐 Question

Medium

Defer, Panic, and Recover
Control Flow
Error Handling
Solve
Consider the following Go code snippet, where we're exploring the use of defer, panic, and recover:
 image
In this pseudo-code, badCall function is deliberately causing a panic. test function uses a deferred function to handle the panic and recover from it. What will the output of this code be when it is run?
 image

Medium

Go Maps
Maps
Solve
Which of the following statements are true regarding the order of output for following Go code:
 image
A. Output will be ordered by values
B. Output will be ordered by keys
C. Output will be ordered randomly
D. Output will be ordered by position in the code

Medium

File Handling and Defer
File Handling
Solve
Consider the following Go code. Where should we use *defer*?
 image

Easy

Go WaitGroup
Concurrency
Solve
What does the following Go code output?
 image

Medium

Mutex Locks
Mutex
Goroutines
Concurrency
Solve
Consider the following Go program:
 image
What is the expected output of the final counter when the program is run?

Easy

Registration Queue
Logic
Queues
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Visitors Count
Strings
Logic
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

Defer, Panic, and Recover
Control Flow
Error Handling

2 mins

Go
Solve

Medium

Go Maps
Maps

2 mins

Go
Solve

Medium

File Handling and Defer
File Handling

2 mins

Go
Solve

Easy

Go WaitGroup
Concurrency

2 mins

Go
Solve

Medium

Mutex Locks
Mutex
Goroutines
Concurrency

2 mins

Go
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Defer, Panic, and Recover
Control Flow
Error Handling
Go
Medium2 mins
Solve
Go Maps
Maps
Go
Medium2 mins
Solve
File Handling and Defer
File Handling
Go
Medium2 mins
Solve
Go WaitGroup
Concurrency
Go
Easy2 mins
Solve
Mutex Locks
Mutex
Goroutines
Concurrency
Go
Medium2 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve

Test candidates on core Go/Golang Hiring Test topics

Go Fundamentals: Go Fundamentals is the foundation of programming in the Go language. It covers the basics of syntax, variables, data types, and control structures, enabling developers to write efficient and reliable code.

Variables and Types: Variables and Types in Go are crucial for understanding and manipulating data. They provide a way to store values and specify their type, allowing developers to perform calculations, data transformations, and comparisons.

Functions and Methods: Functions and Methods are essential concepts in Go for modularizing code and achieving reusability. They encapsulate a set of instructions or operations to perform a task, enhancing code readability and making it easier to maintain and debug.

Control Flow: Control Flow refers to how the execution of a program is managed based on specified conditions. It includes if-else statements, loops, and switch statements, which enable developers to control the flow of execution and make decisions based on different situations.

Arrays and Slices: Arrays and Slices provide ways to organize and manipulate collections of data in Go. They offer efficient storage and retrieval of elements, as well as capabilities for sorting, searching, and modifying data structures.

Structs and Interfaces: Structs and Interfaces are fundamental concepts for representing complex data structures and defining contracts in Go. Structs provide a way to group related data fields, while interfaces define a set of methods that a type must implement, enabling polymorphic behavior and code reuse.

Concurrency and Channels: Concurrency and Channels are vital for writing concurrent and parallel programs in Go. They allow multiple tasks to be executed concurrently, communicating and synchronizing through channels, enabling efficient resource utilization and improving overall performance.

Error Handling and Testing: Error Handling and Testing are essential for writing robust and reliable Go code. It involves techniques to handle and propagate errors, ensuring proper program execution, along with writing tests to validate the functionality of code and catch any potential issues.

Packages and Libraries: Packages and Libraries in Go provide modularization and code reuse. They allow developers to organize code into separate units of functionality, improving code maintainability and facilitating collaboration with other developers by providing a standard way to share code and dependencies.

File Handling: File Handling in Go involves reading, writing, and manipulating files. It allows developers to work with file systems, perform operations such as opening, closing, creating, and deleting files, as well as reading from and writing to files, enabling data storage and retrieval.

JSON and Web Services: JSON and Web Services are essential for building and consuming web APIs in Go. JSON is a standard data format for exchanging information between systems, while web services allow communication over the internet, enabling developers to create and interact with APIs, retrieve and manipulate data from external sources.

Database Connectivity: Database Connectivity in Go involves establishing connections, querying, and manipulating databases. It enables developers to interact with a database management system, perform operations such as creating, reading, updating, and deleting data, integrating Go applications with databases to store and retrieve data efficiently.

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Have questions about the Go/Golang Hiring Test?

What roles can I use the Go/Golang Test for?

Here are few roles for which we recommend this test:

  • Golang Developer
  • Systems Engineer
  • Microservices Developer
  • Blockchain Developer
Can I combine Golang Online Test with Database Connectivity questions?

Yes, you can request a custom test that includes both Golang and Database Connectivity questions. For more details on how we assess Database Connectivity skills, refer to our PostgreSQL Online Test.

How to use Golang Online Test in my hiring process?

We recommend using this test as a pre-screening tool at the beginning of your recruitment process. You can share the test link in your job post or invite candidates directly via email.

What are the main Go Programming tests?
Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

What is Golang Online Test?

The Golang Online Test is designed to assess the proficiency of candidates in Go programming language. It is used by recruiters to evaluate skills such as Go Fundamentals, Functions, Methods, and Concurrency.

What skills are evaluated in the Golang Online Test?

The test covers key skills including Go Fundamentals, Variables and Types, Functions and Methods, Control Flow, Arrays and Slices, Structs and Interfaces, Concurrency and Channels, Error Handling, Testing, Packages, Libraries, File Handling, JSON, Web Services, and Database Connectivity.

Can I test Backend and Go together in a test?

Yes, you can assess both skills together. We recommend using our Backend Engineer Test for a comprehensive evaluation of backend development and Go skills.

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

What is the cost of using this test?

You can check out our pricing plans.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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