An API Developer Is Improving an Application Code to Prevent

question 30

Multiple Choice

An API developer is improving an application code to prevent DDoS attacks. The solution needs to accommodate instances of a large number of API requests coming for legitimate purposes from trustworthy services. Which solution should be implemented?

• A) Restrict the number of requests based on a calculation of daily averages. If the limit is exceeded, temporarily block access from the IP address and return a 402 HTTP error code.
• B) Implement REST API Security Essentials solution to automatically mitigate limit exhaustion. If the limit is exceeded, temporarily block access from the service and return a 409 HTTP error code.
• C) Increase a limit of replies in a given interval for each API. If the limit is exceeded, block access from the API key permanently and return a 450 HTTP error code.
• D) Apply a limit to the number of requests in a given time interval for each API. If the rate is exceeded, block access from the API key temporarily and return a 429 HTTP error code.

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Definitions:

Equilibrium Output

The level of output at which the quantity of goods produced equals the quantity of goods demanded.

Price Level

A measure of the average price of goods and services in an economy, which can indicate the inflation rate or cost of living.

Aggregate Output

The total value of goods and services produced in an economy over a specific period, measuring the economy's overall production.

Aggregate Supply Curve

A graphical representation showing the relationship between the total supply of goods and services at various price levels in an economy.