While working with MS-DOS, which command is used to compare the disk in drive A with the disk in drive B, specifying to compare only first side of each disk, and only the first 8 sectors of each track?
The main difference between synchronous and asynchronous transmission is
Options: the clocking is derived from the data in synchronous transmission, the clocking is mixed with the data in asynchronous transmission, the pulse height is different., the bandwidth required is different
8.In Excel to select an individual data marker or data label, you must
Options: (A)Double click the data series (B) Right click selected marker (C) Click once to select the series markers or labels and click the desired marker or label again (D) Double click the marker or label | 37 12
Which one of the following statements is true for the impedance of a series RC circuit?
Options: The impedance is greater than the sum of the resistance and capacitive reactance, The impedance is equal to the sum of the resistance and capacitive reactance, The impedance is greater than either the resistance or capacitive reactance but less than their sum, The impedance is less than the sum of the resistance and capacitive reactance
9.The operating system control tables maintains file table, because
Options: (A)These tables manage I/O devices and channels of the computer system. (B) These tables provide information about the existence of files, their location on secondary memory and their current status. (C) These tables provide information to manage process. (D) None of these. 1
Options: One or more conductors that serve as a common connection for a related group of devices, a continuous frequency capable of being modulated or impressed with a second signal, the condition when two or more stations attempt to use the same channel at the same time, a collection of interconnected functional units that provides a data communications service among stations attached to the network