Large corporate networks and the Internet backbone use ____ signals to transport data wirelessly.
A. radio frequency
B. microwave signals
C. infrared
D. Bluetooth
Answer: B
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The zone file ____ entry specifies how often slave name servers check the serial number to see whether the zone file has changed.
A. time-to-live (TTL) B. refresh rate C. expiration entry D. negative TTL
All Visual Basic arrays are considered static arrays.
Answer the following statement true (T) or false (F)
Products that earn the ENERGY STAR rating have
A) Highly efficient rates, low costs, and high availability B) Low total energy requirements, low power modes, and efficient power supplies C) Low battery and RAM requirements and no external power supply D) High total energy requirements, high power modes, and highly efficient power supplies
When proofreading a document, first proofread the document on the screen and then print it and proofread the hard copy.
Answer the following statement true (T) or false (F)