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...
GNS3 is widely used to simulate, configure, test, and troubleshoot real and virtual networks. GNS3 allows you to manage topologies of any size, from those with multiple devices hosted on your laptop to those with multiple devices spread across multiple servers or even...
Cisco Systems created Packet Tracer, a cross-platform visual simulation application that enables users to build network topologies and simulate contemporary computer networks. Using a simulated command-line interface, the software allows users to replicate the...
Testing the network capabilities will help you understand the maximum data traffic limit you might reach. Network capabilities are greatly influenced by the network topology and the hardware you are using. By doing the test, you will know the weaknesses and...
What are VLANs? Virtual Local Area Network or better known as "VLAN" is a subnetwork capable of grouping devices on a local area network (LAN) that are physically separated into one logical network. VLANs arise because the complexity of the existing network has...
EtherChannel is a port link aggregation technology or port-channel architecture used primarily on Cisco switches. This allows grouping multiple physical Ethernets into one logical Ethernet for the purpose of providing fault-tolerance and high-speed links between...
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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