switch is an example of a
A. preprocessor directive
B. comment
C. keyword
D. statement
C
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Another way a systems analyst can show the scope of a system and define proper system boundaries is to use a(n):
A) flow chart. B) entity-relationship diagram. C) database diagram. D) spreadsheet.
Answer the following statements true (T) or false (F)
1. Ajax is a technique used to obtain data from a server and update large amounts of data using UML. 2. The data dictionary is a reference work of data about data. 3. Data about data is called metadata. 4. The data dictionary can be used as a starting point for creating XML documents.
An administrator receives a security alert that appears to be from one of the company's vendors. The email contains information and instructions for patching a serious flaw that has not been publicly announced. Which of the following can an employee use to validate the authenticity if the email?
A. Hashing algorithm B. Ephemeral Key C. SSL certificate chain D. Private key E. Digital signature
Define polymorphism, and provide three examples.
What will be an ideal response?