. All of the following are task performed by the operating system except
Options: a. Managing hardware on the computer
b. Controlling the access that application program has to the CPU
c. Performing housekeeping task like file compression and disk defragmentation
d. Provides an interface for user to interact with computer
In laser technology, what happens during the transfer stage?
Options: Residual toner is transferred to the waste receptacle, The laser transfers the image from the drum to the paper, The image is transferred from the drum to the paper, A negative charge is transferred to the surface of the drum
Which one of the following statements most accurately applies to the frequency of a waveform?
Options: The actual frequency of a sine waveform is 1.41 times the working frequency, Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz, The higher the amplitude of a waveform, the higher its frequency, The longer the period of a waveform, the lower its frequency
Which one of the following principles best describes the basic operation of a generator?
Options: Like magnetic poles repel; unlike poles attract, Current is induced in a conductor that is moving through a magnetic field, Like magnetic poles attract; unlike poles repel, Current flowing through a conductor generates a magnetic field
Options: a. When Item is somewhere in the middle of the array
b. When Item is not in the array at all
c. When Item is the last element in the array
d. When Item is the last element in the array or is not there at all
Options: Only the joining attributes are sent from one site to another and then all of the rows are returned., All of the attributes are sent from one site to another and then only the required rows are returned., Only the joining attributes are sent from one site to another and then only the required rows are returned., All of the attributes are sent from one site to another and then only the required rows are returned.
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