A(n) ____ is a placeholder for data whose contents can change.
A. attribute
B. element
C. field
D. value
Answer: C
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____________ can occur when a company’s wireless LAN or wireless access points to wired LANs in close proximity and may create overlapping transmission ranges. A user intending to connect to one LAN may unintentionally lock on to a wireless access point from a neighboring network.
A. Network injection B. Denial of service attacks C. Man-in-the-middle attacks D. Accidental association
Which of the following activities could lead to significant overhead in a page-replacement strategy?
a) asynchronously flushing modified pages to disk b) marking pages as dirty or modified c) predicting future page use to determine which pages to replace d) all of the above
____________________ is a feature that enables data to be moved by copying datafiles and integrating tablespace structural information only, increasing performance by speeding up the process of moving data.
Fill in the blank(s) with the appropriate word(s).
When debugging a Ruby program, you can use the ____ method to examine the value assigned to the program's local variables.
A. var local B. var variable C. show local D. show variable