In a pure object-oriented language, all data types are constructed as ____________________.
Fill in the blank(s) with the appropriate word(s).
classes
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Available copies replication is applied to data items A and B with replicas Ax, Ay and Bm, Bn. The transactions T and U are defined
T: Read(A); Write(B, 44). U: Read(B); Write(A, 55). Show an interleaving of T and U, assuming that two-phase locks are applied to the replicas. Explain why locks alone cannot ensure one copy serializability if one of the replicas fails during the progress of T and U. Explain with reference to this example, how local validation ensures one copy serializability.
Why is a test lab critical when deploying IPv6?
What will be an ideal response?
Which one of the following filter options is not found on the text filter submenu?
A) Custom Filter B) Includes C) Begins With D) Contains
Iris scanners are more invasive than retinal scanners.
Answer the following statement true (T) or false (F)