Describe how a non-recoverable situation could arise if write locks are released after the last operation of a transaction but before its commitment.
What will be an ideal response?
An earlier transaction may release its locks but not commit, meanwhile a later transaction uses the objects and commits. Then the earlier transaction may abort. The later transaction has done a dirty read and cannot be recovered because it has already committed.
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A(n) ____________________ is a relationship between a set of inputs and a set of potential outputs where each input has exactly one output.
Fill in the blank(s) with the appropriate word(s).
Jump buttons enable you to jump from slide to slide, and are assigned hyperlinks to direct their actions.
Answer the following statement true (T) or false (F)
What method enables you to limit access to your wireless network based on the physical, hard-wired address of the units? wireless NIC?
A. OFDM B. MAC address filtering C. SSID broadcasting D. NTFS Permissions
COGNITIVE ASSESSMENT Which of the following best defines Bluebugging?
A. When two Bluetooth devices are connected B. The installation of Bluetooth security software C. When cyberthieves exploit Bluetooth devices that are paired D. When Bluetooth technology runs slowly because of interference with other wireless networks