Which best describes what databases do

1. Which of the following best describes the meaning of the multiplicities next to the number 1 in the preceding diagram?

Stocks are traded in only one exchange.
Stocks are traded in at least one exchange.
Stocks are traded in a minimum of zero exchanges.
Stocks are traded in a maximum of many exchanges.
Both c and d are correct.
2. Which of the following best describes the meaning of the multiplicities next to the number 2 in the preceding diagram?

Each exchange trades at least one stock.
Each exchange trades only one stock.
Each exchange trades a minimum of zero stocks.
Each exchange trades a maximum of many stocks.
Both a and d are correct.
3. Which of the following is true to implement the Stock Exchanges and Stocks classes and the association between them in the preceding UML class diagram in a database?

The primary key of Stocks is a foreign key in Stock Exchanges.
The primary key of Stock Exchanges is a foreign key in Stocks.
The association between Stocks and Stock Exchanges is implemented as a linking table.
Both a and b are true.
None of these is true
4. Which of the following best describes the meaning of the multiplicities next to the number 3 in the preceding diagram? LO 3-2, LO 3-3

Each transaction involves at least one stock.
Each transaction involves only one stock.
Each transaction involves a minimum of zero stocks.
Each transaction involves a maximum of many stocks.
Both a and b are correct.
5. Which of the following best describes the meaning of the multiplicities next to the number 4 in the preceding diagram?

Each stock is bought/sold at least once.
Each stock is bought/sold only once.
Each stock is bought/sold a maximum of many times.
Each stock is bought/sold a minimum of many times.
Both a and c are correct.
6. Which of the following is true to implement the Buy/Sell Transactions and Stocks classes and the association between them in the preceding UML class diagram in a database?

The primary key of Stocks is a foreign key in Buy/Sell Transactions.
The primary key of Buy/Sell Transactions is a foreign key in Stocks.
The association between Stocks and Buy/Sell Transactions is implemented as a linking table.
Both a and b are true.
None of these is true.
7. Which of the following best describes the meaning of the multiplicities next to the number 5 in the preceding diagram?

Each Broker is involved in one Buy/Sell Transaction.
Each Broker is involved in many Buy/Sell Transactions.
Each Broker is involved in a minimum of one Buy/Sell Transaction.
Each Broker is involved in a minimum of zero Buy/Sell Transactions.
Both b and d are correct.
8. Which of the following best describes the meaning of the multiplicities next to the number 6 in the preceding diagram?

Each Buy/Sell Transaction involves one Broker.
Each Buy/Sell Transaction involves many Brokers.
Each Buy/Sell Transaction involves a minimum of zero Brokers.
Each Buy/Sell Transaction involves a maximum of many Brokers.
Both a and d are correct.