Cisco Packet is one of the most popular applications that you can use to draw and simulate networks. Packet Tracer allows you to design complex and large networks, which you often can't do with physical hardware due to cost. With such capable capabilities, of...
One easy method to ensure the security of user accounts is to enforce policies that require periodic password changes. One way to prompt users to change their passwords is to notify them when their passwords are about to expire. While it may not always be necessary,...
Before you edit or modify the Windows registry, back up from that registry. Fatal errors in changing the registry can cause the operating system to not run normally. In some cases, registry damage can only be repaired by reinstalling the operating system and resulting...
The electronic circuitry used to store binary data is known as computer memory. This is achieved by switching very small electronic control positions on or off. In binary code, 1 is denoted by the on position and 0 is denoted by the off position. A bit refers to 0 and...
The most obvious symptom of a faulty power supply is when you turn on the computer and hear a loud noise, smell burning, or see smoke, and the computer won't turn on. Turn off the power immediately, most likely your power supply is damaged. The Power Supply Unit (PSU)...
In Excel, you can restrict users by only allowing data input with the values you have specified. In this article, Bardimin will share some tricks to only allow the input of specific values in Excel cells. Data entry errors are a problem for any Excel user who wants...
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