Answer:
A backdoor is a typically covert method of bypassing normal authentication or encryption in a computer, product, embedded device, or its embodiment. Backdoors are most often used for securing remote access to a computer, or obtaining access to plaintext in cryptographic systems.
Explanation:
Answer:
The answer is A). Integers
Explanation:
Booleans and Strings don't represent numbers (in most cases) so they can be eliminated.
Floats are used for representing decimals while integers are used for whole numbers.
Answer:
^[A-Fa-f0-9]+$
Explanation:
The hexadecimal (Base 16) can contain 0-9, A-F, a-f and any of these can be the part of the Hexadecimal base 16 code.
In python we have the re.match function, and the syntax is as below:
re.match(pattern, string, flag=0). And we can use this function to check whether the entered char variable is a regex or not. Like:
re.match(pattern,x, flag=0)
=(+B2-B1)*F3 is what you need to enter in cell F4
The difference between Hollerith and Burroughs machine is that Hollerith have a pantograph that is used to create punch cards but the other is different.
<h3>What is a Hollerith machine?</h3>
A Hollerith machine is known to be a kind of a specific type of electromechanical machine that was known to be used as an information-processing resource in all of the early 20th century.
Note that the machine is said to be one that uses a system that has electrical and mechanical signals, and also some set of wires placed over pools of mercury on paper punch cards.
Therefore, The difference between Hollerith and Burroughs machine is that Hollerith have a pantograph that is used to create punch cards but the other is different.
Learn more about Burroughs machine from
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