Which of the following characteristic(s) is/are suited to the PSS applications?
Options: bursty traffic and low communications intensity, widely dispersed terminals and access to international packets switched services, Multiple remote host or applications accessed by a single local access circuit terminal and circuit, All of the above
Options: No financing is requird. The risk of system obsolescence is shifted to the lessor, the flexibility of modifying the system at will, Insurances, maintenance, and other expenses are included in the rental charge, All of the above
Which of the following applies to external DOS commands?
Options: External commands reside in RAM until called, External commands are stored on disk separately from COMMAND.COM, External commands must always be used with the /e switch, External commands can only be executed from a batch file.
Each answer below shows example data from a table. Which answer is an example of the missing values problem?
Options: Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row., Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column., Three rows have the values Brown, NULL, and Blue in the same column., One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.
What is the significance of the J and K terminals on the J-K flip-flop?
Options: There is no known significance in their designations., The J represents "jump," which is how the Q output reacts whenever the clock goes HIGH and the J input is also HIGH., The letters represent the initials of Johnson and King, the co-inventors of the J-K flip-flop., All of the other letters of the alphabet are already in use.
The difference between a multiplexer and a statistical multiplexer is
Options: Statistical multiplexers need buffers while multiplexers do not need buffers, Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol, Multiplexers often waste the output link capacity while statistical multiplexers optimize its use, Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)