A ____________ uniquely represents a set of values in a relational database.

a) record
b) field
c) row
d) primary key

c) row

Computer Science & Information Technology

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The ______ is a security technique associated with the use of credit cards at the time of purchase that checks additional digits printed on the back of the credit cards.  

A. Address Verification System B. Advanced Authorization C. Payment Card Industry security standard D. Card Verification Number

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Computer Science & Information Technology

In the readers and writers monitor presented in Fig. 6.3 why does it make sense to cascade in all waiting readers?

What will be an ideal response?

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Computer Science & Information Technology

What would be displayed after line 8 runs?

``` 1 vector vNums; 2 vNums.push_back(10); 3 vNums.push_back(5); 4 vNums.push_back(15); 5 vNums.push_back(25); 6 cout << vNums.size(); 7 vNums.pop_back(); 8 cout << vNums.at(2); 9 vNums.pop_back(); 10 vNums.pop_back(); 11 vNums.pop_back();``` A. 10 B. 5 C. 15 D. 25

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Computer Science & Information Technology

Explain in detail what it means to evaluate sources and what the criteria for evaluation are.

What will be an ideal response?

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Computer Science & Information Technology