Answer:
Unidirectional antenna
Explanation:
Unidirectional antenna concentrates transmission in one direction, that way the farmer will just need to point from the camera to His house.
<span>the length of the IPv4 header</span>
The correct syntax would be: =SUM(F6:F9)
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The read permission allows the user view files but not change them.
<h3>File permission</h3>
Assigning the correct permissions to the files and directories helps prevent data theft because it specify who and what can<em> read, write, modify, and access content</em>. Each file and directory will have three permission categories, these are:
The read permission allows the user view files but not change them.
Find out more on file permission at: brainly.com/question/6990309