The Complete Solidity Course - Zero to Advanced for Blockchain and Smart Contracts - The Fallback Function in Solidity I

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of a fallback function in Solidity?
To manage user authentication
To execute complex logic
To store data permanently
To handle function calls that do not match any existing function
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true about fallback functions?
They return a value
They must be declared as external
They are named functions
They can have multiple inputs
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much gas is typically provided when using the send or transfer method?
5000 gas
2300 gas
All available gas
1000 gas
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What keyword is used to define a fallback function in Solidity?
anonymous
function
fallback
default
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it not recommended to write extensive logic in a fallback function?
It makes the code difficult to read
It can lead to security vulnerabilities
It is not supported by the Solidity compiler
It may cause the function to fail due to gas limits
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 'emit' keyword in Solidity?
To declare a variable
To call a function
To trigger an event
To end a contract
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'gasleft' function return?
The initial gas provided
The remaining gas available
The gas price
The total gas used
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