In what types of installations might this scheme be useful?
What will be an ideal response?
This scheme might be useful in installations where security breaches are not too costly,
and where there is a low probability that a user would try to break into the system.
Suggest a simple modification to the scheme that would make it far more effective, yet
still far more economical than a comprehensive security program.
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What does a receiving device do if it receives a frame that is less than the allowed minimum size or greater than the allowed maximum size?
a. The receiving device sends back a negative acknowledgment to the sender. b. The receiving device drops the frame. c. The receiving device reports a collision. d. The receiving device requests a retransmission.
A(n) ______ block is a data block that you do not associate with a particular database table.
Fill in the blank(s) with the appropriate word(s).