A SQL query to joins two tables. When tables appear in the FROM clause, you can give each table a(n) ____, or an alternative name, that you can use in the rest of the statement.
A. pseudonym
B. alias
C. variable
D. locus
Answer: B
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Which of the following is true about wireless network operation modes?
A. a WLAN that uses an AP operates in peer-to-peer mode B. a WLAN that does not use an AP operates in infrastructure mode C. a WLAN operating in ad hoc mode does not use an AP D. a WLAN classified as an IBSS uses an AP
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