When two computers communicate with each other, they send information back and forth. If they are separated by a reasonable distance, they can send and receive the information through a direct cable connection which is called a null-modem connection. Presently what is the maximum distance in metres permitted in this null-modem connection?
Options: An official standard has been defined for QBE., QBE cannot be used for client/server systems., QBE does not give the programmer a visual programming environment., Complete applications can be written using QBE.
. A user wishes to remove a spreadsheet from a workbook. Which is the correct sequence of events that will do this?
Options: a. Go to File-Save As â€“ Save As Type â€“ Excel worksheet b. Right click on the spreadsheet tab and select DELETE c. Right click on the spreadsheet and select Insert â€“ Entire Column d. None of above
Options: is a low percentages of number of records added or deleted from a file, if high, reduces processing efficiency for sequential and nonsequential files, is a measure of the percentage of existing records updated during a run, refers to how closely the files fits into the allocated
Options: the human aspect of the environment around the workstation as well as the workstation itself, the cost relationship of the workstation versus productivity, the level of involvement the operator has with the workstation, the technology involved in the workstation itself