A composite primary key applies to more than one field. <span>A table can have only one primary key, which may consist of single or multiple fields.</span>
A composite primary key is selected from Design view. <span>In Design </span>view<span>, you can use the </span>Primary Key<span> button to assign or remove the </span>primary key<span> designation for the </span>selected<span> field or fields.</span>
450Mbps on the 2.4GHz band and 1300Mbps on the 5GHz band
When an individual user works in stand-alone mode, the workstation performs all the functions of a server by storing, accessing, and processing data as well as providing a user interface.
Answer:
Option B i.e., Update the UEFI firmware.
Explanation:
The user had many periods of using the same machine. He wants to update the processor to increase the existing service period. Later, he tests the paperwork onto the motherboard and buys the best motherboard-supported processor.
While the user starts the machine, though, that makes a noise constantly, nothing is shown on its monitor and it wouldn't start. So, the first step is he will update firmware from UEFI.
Thus, the other options are not correct according to the scenario.
