________ is the measure of how far the data sample spreads from the mean
Fill in the blank(s) with correct word
Standard deviation
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Checking user input data for erroneous or unreasonable data is referred to as ____.
a. relational data validation b. arithmetic data validation c. output data validation d. input data validation
When the ++ operator appears before a variable it’s called a(n) ____ increment operator.
a. suffix b. infix c. postfix d. prefix
Which sentence is correct when using a plural abbreviation??
A. ?RN's who specialize have excellent job prospects. B. ?RNs who specialize have excellent job prospects.
Hackers often use a botnet to launch a ____, or a bombardment of network traffic or messages designed to overload a server.?
A. ?TCP/IP attack B. ?denial of service (DoS) attack C. ?Theft by computer D. ?Trojan horse attack