The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to
Options: a. Can only add values in a range of cells b. Provides a quick way to view the result of an arithmetic operation on a range of cells c. Automatically creates formulas and adds them to a worksheet d. A and c
The disadvantages of "Compile and Go" loading scheme is (are):
Options: a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program., it is necessary to retranslate the user's program deck every time it is run., it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs., all of the above
How does a host on an Ethernet LAN know when to transmit after a collision has occurred? In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting. You can improve the CSMA/CD network by adding more hubs. After a collision, the station that detected the collision has first priority to resend the lost data. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.
Options: A) You can set different header footer for even and odd pages, B) You can set different page number formats for different sections, C) You can set different header footer for first page of a section, D) You can set different header and footer for last page of a section,