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For the same mode of operation of a block cipher.

True of false: this mode of operation is parallelisable.

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For the same mode of operation of a block cipher.

True of false: this mode of operation requires an initialisation vector.

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Consider the following mode of operation of a block cipher.

True of false: this mode of operation requires synchronisation.

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What is a tag in Git?
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What is a push in Git?
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What is view materialization in PostgreSQL?

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Which of the following is an advantage of using views in PostgreSQL?

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Suppose you have a PostgreSQL database that contains a table named sales, which contains information about sales transactions. The sales table has columns for the date of the transaction, the name of the salesperson, the product sold, and the amount of the sale. You want to create a grouped view that shows the total sales amount for each salesperson and product combination.

Example of the sales table:

sale_datesalespersonproductsale_amount
2022-03-01John SmithProduct A100.00
2022-03-01Jane DoeProduct B75.00
2022-03-02John SmithProduct C50.00
2022-03-03Bob JohnsonProduct A25.00
2022-03-03Jane DoeProduct B150.00

Which of the following CREATE VIEW statements would accomplish this?

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What is web scraping?

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Why do businesses use APIs to collect data?

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