The video tutorial covers setting up a currency calculation and exchange service using Spring. It explains how to use RestTemplate for HTTP requests, map responses to Java objects, and implement currency conversion logic. The tutorial also demonstrates running and testing the services to ensure they work correctly.

What is the primary tool used to invoke an external service exposed via HTTP in the context of this tutorial?

• RestTemplate

• SOAP Client

• GraphQL

• gRPC

What is the purpose of creating a currency conversion bean in the service?

• To manage user sessions

• To map and process the response from the currency exchange service

• To store user credentials

• To handle database connections

Which method is used to send a GET request and map the response to an entity?

• putForEntity

• postForEntity

• exchange

• getForEntity

How are URL variables defined and used in the RestTemplate?

• Using a list of integers

• Using a map of strings

• Using a set of booleans

• Using a queue of characters

What is the significance of the conversion multiple in the currency conversion process?

• It is used to multiply with the quantity to get the total amount

• It determines the number of decimal places

• It defines the currency symbol

• It sets the maximum limit for conversion

Why is it important to have both the currency exchange and conversion services running?

• To ensure data is stored in the database

• To allow the conversion service to communicate with the exchange service

• To enable user authentication

• To provide a backup in case one service fails

What is the expected output when converting 1000 USD to INR with a conversion multiple of 65?

• 6500 INR

• 65000 INR

• 1000 INR

• 650 INR