Answer:
A Caesar Cipher is a basic encryption type.
Explanation:
Its implementation is very easy and straightforward. It uses a one-to-one of characters in a character set. The input needed is the plain-text message and the encryption number.
For example, using the character set A-Z, encrypting the text CS IS COOL using the key of 3 generates FV LV FRRO. What has been done here is to take each character in the plain-text message and move it by "encryption number steps" in the character set.
Answer:
your friend just sent you 32 bits of pixel data (just the 0s and 1s for black and white pixels) that were encoded after sampling an image. Choose the two statements that are true.
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The 32 bits of pixel data is enough to produce the image using the widget. Nothing else is needed.
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The digital image would be an exact copy of the analog image.
-----------------------------The correct width and height must be input into the pixelation widget to produce the image.
---------------------------The fact that only 32 bits were used to represent the image indicates relatively large sample squares were used. The digital image may vary from the analog image significantly
Explanation:
The Wi-Fi alliance is an alliance that promotes the wireless technologies and the interoperability between them. It defines the the security of the wireless technologies and the application protocols. From this example we can learn that is crucial to have one platform that defines the main characteristic of a type of network in order to have strictly defined standards and protocols, and by doing so, have interoperable networks.
Answer:
b. The outer subquery initiates the process of execution in a subquery.
B is correct.
Explanation:
The important feature of a correlated subquery is: It must be executed repeatedly because it depends on the value from the outer SELECT, and must execute once for every value that the outer SELECT produces.