Answer:On the Home tab, in the Views group, click View, and then click Design View. In the table design grid, select the field or fields that you want to use as the primary key. To select one field, click the row selector for the field that you want.
Explanation:
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Answer:
Your “digital footprint” includes all traces of your online activity, including your comments on news articles, posts on social media, and records of your online purchases. When you know the boundaries of your digital footprint and take steps to contain it, you can help protect your identity and your reputation.
Explanation:
Answer:
Hubs incorporate amplifiers and repeaters.
Explanation:
Hub is an outdated way of connecting ethernet devices, they incorporate amplifiers and repeaters, they do not allow simultaneous communication among connected devices.
The latest technology in connecting ethernet devices are with the use of switch.
1.Extended border node (EBN)
2.Central directory server (CDS)
3.Branch extender (BEX or BrEx or BrNN)
