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Data encryption is the primary method to protect data confidentiality of information transferred from device to another. Integrity Integrity refers to the prevention of any unauthorized changes of data to ensure accuracy. With integrity, the user can be certain that it is the real unmodified information and so it can be a reliable piece of information. A common type of attack that affects data integrity is known as the middleman attack, in which the attacker interrupts the information while in transit and make modifications to it that are unknown to the two communicating parties.

You can secure the posterior of the network to safeguard it against threats, but it is also crucial to secure the network interior as some threats could even come from the interior. In fact, switches could turn out to be that weak spot if not secured appropriately. Gaining access to switches could be an easy entry point for intruders who want to penetrate the network. When an intruder gains access to a switch, it is easy to launch any form of attack from inside the network. The security measures that are designed to protect the network will not be sufficient to avert these attacks because they are coming from inside the network.

Take note that you can only summarize in block sizes of 128, 64, 32, 16, 8, and 4. Meanwhile, the network address used for the summarized address signifies the first network address contained in the block. Hence, it is important for you to troubleshoot common problems that are related to IP Addressing. Before you troubleshoot a network, you must first understand the common protocols and tools used in troubleshooting IP addresses. Packet Internet Grouper (PING) This is a very common utility in troubleshooting IP addressing and problems with internet connection.

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frame relay 2

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