Which operator can be used in string concatenation?
a. *
b. +=
c. ++
d. =+
b. +=
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Isolation is a sufficient but not necessary condition to achieve correctness. Consider an application that reserves seats for a concert. Each reservation transaction (1) reads the list of seats that have not yet been reserved, (2) presents them to a potential customer who selects one of them, and (3) marks the selected seat as reserved. An integrity constraint asserts that the same seat cannot be reserved by two different customers. Describe a situation in which two such transactions that reserve two different seats execute in a nonisolated fashion but are nevertheless correct.
What will be an ideal response?
Suppose you were asked to draft an e-commerce sales brochure for Precision Consulting. List all the services in which potential customers might be interested.
What will be an ideal response?
When writing a program, a(n) ____ structure provides the ability for the same operation to be repeated based on the value of a condition.
A. sequence B. selection C. iteration D. invocation
Sworn testimony that certain facts are in the possession of the investigating officer and that they warrant the examination of specific items located at a specific place is known as a(n) _________.
A. subpoena B. forensic finding C. search warrant D. affidavit