Which of the following devices is used to extend the signal strength on a network segment?
A. Repeater
B. NIC
C. Transceiver
D. Modem
Answer: A. Repeater
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Consider a relation R(A,B,C,D,E) with the following dependencies:
``` AB -> C CD -> E DE -> B ``` Is AB a candidate key of this relation? If not, is ABD? Explain your answer.
Savadone University, a small, private university specializing in graduate programs, needs to keep track of the list of students who (a) apply, (b) are accepted, and (c) actually enroll in the university. For security purposes the university also must send a report to the government with a list of foreign students who enroll but fail to register.
Suggest a kind of code for this purpose, and give an example of its use in the university that demonstrates its appropriateness. What are its advantages?
Clicking a cell and then right-clicking in the formula bar displays the insertion point in the formula bar
Indicate whether the statement is true or false
The term two-dimensional means a chart has a horizontal axis and a category axis.
Answer the following statement true (T) or false (F)