It helps you keep things organized and easier to find files
There are multiple devices that emit radio waves. The most obvious is are radiod and microwaves (yes, the food cooker). Wireless applicances also emit radio waves. But don't confuse everything to use microwaves. Some applicances use frequencies instead of radio waves. Some applicances that use frequencies are toy control remotes and a garage door.
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Answer:
The answers are: it is used to enable fast DNS queries and It can help reduce the amount of network traffic generated by DNS servers.
Explanation:
Because a DNS server can resolve a query from tis local data sends a recursive qyery to a root server.
Answer:
Output device.
Explanation:
An output device can be defined as a hardware device that typically receives processed data from the central processing unit (CPU) and converts these data into information that can be used by the end user of a computer system.
All of the output device of a computer are known as peripheral devices and they provide data (informations) to the end users in various formats such as video, audio, texts, images etc.
Since output devices are peripheral devices, they can be connected to the computer system wirelessly or through a wired-connection (cable).
Some examples of output devices are monitor, speakers, printer, projector etc.
Hence, when you hear music, read a printout, or view a video, you are using a computer's output device.
