Match each term with the correct statement below.
A. the process of sending multiple signals simultaneously
B. an IEEE 802.11a error correction technique that transmits a secondary copy along with the primary information
C. a modulation technique that uses a range of frequencies that change during the transmission
D. the difference between the upper and lower frequencies
E. an IEEE 802.11a modulation technique that increases the amount of data encoded to 250 Kbps per channel
F. a proprietary transmission scheme used to double the effective rate of an
802.11a network
G. sharing a frequenct band between similar devices
H. a modulation technique that splits a single high-speed digital signal into several slower signals running in parallel
I. a delay built-in into the receiver to allow for late-arriving symbols
A. multiplexing
B. Forward Error Correction
C. FHSS
D. bandwidth
E. quadrature phase shift keying
F. turbo mode
G. colocation
H. orthogonal frequency division multiplexing
I. guard interval
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Together, the appearance and the way in which the user interacts with the application are known as that application’s ________.
a. abstract window toolkit. b. look-and-feel. c. swing factor. d. All of the above.
The quorum consensus replication algorithm requires that the timestamps of transactions be consistent with their commit order. In the absence of synchronized clocks, this requirement is not easily met. Propose an alternate algorithm for tagging replicas that can be used with quorum consensus. (Hint: Instead of assigning timestamps to transactions, assign version numbers to individual replicas.)
What will be an ideal response?
In a PreparedStatement, parameters are counted from position ________.
a. 0 b. 1 c. 2 d. 3
What is the name of the tiny dots that a computer monitor is made up of?
a. Points b. Pixels c. Periods d. Spaces