Character readers are those devices which read the characters printed on the source documents and then convert them directly into computer-usable input. Which of the following is not a character reader?
Options: It means addressing a packet to all machine
B. It means addressing a packet to some machine
C. It means addressing a packet to a particular machine
D. It means addressing a packet to except a particular machine
What is the primary difference between primary and secondary cell batteries?
Options: Primary-cell batteries can be recharged and used many times, whereas secondary-cell batteries cannot be properly recharged, Secondary-cell batteries can be recharged and used many times, whereas primary-cell batteries cannot be properly recharged, Primary-cell batteries use chemical cells, whereas secondary-cell batteries use an alternative energy source, such as thermal or magnetic energy, to supplement their outputs, Primary-cell batteries must be recharged at a much slower rate that secondary-cell batteries
In raster-scan colour monitors, colour can be intensified by:
Options: grouping the phosphor dots in a circular pattern, having each electron gun controlled by a composite signal, using an in-line gun arrangement with a solid metal mesh, having each electron gun controlled by separate signal
Which of the following are advantages of using NAT? Translation introduces switching path delays. Conserves legally registered addresses. Causes loss of end-to-end IP traceability. Increases flexibility when connecting to the Internet. Certain applications will not function with NAT enabled. Reduces address overlap occurrence.
Options: 1, 3 and 4, 3, 5 and 6, 5 and 6, 2, 4 and 6