Which of the following is not a valid way to call a function in Go?
- .functionName(arguments)
- functionName(arguments)
- functionName(arguments)
- package.functionName(arguments)
In Go, the package name is not required when calling a function defined within the same package. Therefore, functionName(arguments) and not package.functionName(arguments) is the correct way to call a function defined within the same package. The period (.) before the function name is also not a valid syntax in Go for calling functions.
A code coverage of 100% does not necessarily mean that your code is _______.
- Bug-free
- Efficient
- Error-free
- Fully functional
A code coverage of 100% does not necessarily mean that your code is bug-free. While achieving 100% code coverage is a good goal, it doesn't guarantee the absence of bugs; it only indicates that all lines of code were executed.
What type of data model does Redis primarily use?
- Column-Family
- Document
- Graph
- Key-Value
Redis primarily uses a key-value data model, where each data value is associated with a unique key. It's a popular choice for caching, session management, and real-time analytics due to its fast in-memory data storage and retrieval capabilities.
What is an anonymous function in Go?
- A function with a predefined name
- A function with a random name
- A function with multiple names
- A function without a name
Anonymous functions in Go are functions without a specific identifier. They are declared using the func keyword without a name followed by the function body. These functions are useful for defining callbacks, deferred execution, or short-lived functions within a block of code.
How do you make a copy of a slice in Go without affecting the original slice?
- Using a loop to iterate over the elements.
- Using the append() function.
- Using the copy() function.
- Using the make() function.
You can make a copy of a slice in Go using the copy() function. The copy() function in Go copies elements from a source slice to a destination slice. It takes two arguments: the destination slice and the source slice. This allows you to create a new slice with the same elements as the original slice without affecting the original slice.
The primary purpose of mocking is to verify the _______ between different parts of a system.
- Communication
- Dependency
- Integration
- Interaction
The main purpose of mocking in software testing is to verify the interaction or communication between different parts of a system. Mock objects are used to simulate the behavior of dependencies or external components, allowing developers to test the interactions without relying on the actual implementations of those components.
When defining a Go struct for JSON encoding, the field tags are specified using ________.
- Encoding Tags
- JSON Tags
- Marshal Tags
- Struct Tags
In Go, when defining a struct for JSON encoding, field tags are specified using struct tags. Struct tags are specially formatted metadata added in a struct field's definition, enclosed in backticks (`). These tags provide instructions or metadata about how the struct field should be encoded or decoded when using encoding/json package functions. They are used to customize the behavior of JSON encoding and decoding for individual struct fields.
The _______ function in Go is used to delete an entry from a map.
- delete
- drop
- erase
- remove
The delete function in Go is specifically designed to remove an entry from a map. It takes the map and the key as arguments and deletes the corresponding key-value pair.
Which data type in Go is used to represent true or false values?
- bool
- float
- rune
- string
In Go, the data type used to represent true or false values is 'bool'. Boolean data types can only have two values: true or false. They are commonly used for conditional statements and logical operations.
What is the difference between import . "package" and import _ "package" in Go?
- import . "package" allows referring to package symbols without package name prefix whereas import _ "package" only imports the package for its side effects without making its symbols accessible
- import . "package" only imports the package for its side effects without making its symbols accessible whereas import _ "package" allows referring to package symbols without package name prefix
- import _ "package" allows referring to package symbols without package name prefix whereas import . "package" imports the package for its side effects without making its symbols accessible
- import _ "package" imports the package for its side effects without making its symbols accessible whereas import . "package" allows referring to package symbols without package name prefix
The import . "package" statement allows you to refer to the symbols in the imported package without prefixing them with the package name. On the other hand, import _ "package" imports the package solely for its side effects, such as initializing global variables or registering functions, without making its symbols directly accessible in the code.