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Explain what are the External Threats
External security threats are the most problematic ones. Till date the greatest threat was the virus menace. Now, with the sophisticated technology, a number of new threats have developed. It becomes difficult to know when an outsider will attempt to hack the systems or who the intruder maybe. There are a number of examples in the past, the recent being hacking of the government's servers by certain terrorists and foreign nationals.
Some people go to great extremes to gain access to the systems and information. If the Intranet is connected with the outside world via the Internet, it will discover a whole new set of potential problems and subject to a number of attacks. Internal & external threats are shown by Figure1, where one Internal person in Intranet is trying to break the Internal security and one external person is also trying to enter in the Intranet of the organisation.
1. Bob has been given the task of changing the IP address and enabling telnet access on a CISCO 2950 enterprise switch. The current IP address is 10.10.10.2/8 the new IP address
Explain the term- congestion The average queue size over the last cycle and the current cycle is calculated. This value is the threshold. By averaging over two cycles instead o
First, split the given series of n numbers into two parts, each consisting of n/2 numbers. After that, recursively split the series into two parts until each number acts as an inde
You are designing a network for a retail customer; they plan to have 5 locations initially with the main store acting as the warehousing depot. Within the next year they are plann
Q. Show the properties of Microwaves? Microwaves - Frequencies among 1 and 300 GHz - Unidirectional - Narrow focus requires sending as well as receiving antennas to
What do you mean by OSI? The Open System Interconnection (OSI) reference model explains how information from a software application in one computer moves by a network medium to
Switches operate at layer 2. They enhance bandwidth by decreasing the number of devices sharing the media. They isolate collisions. Like a bridge they forward traffic based upon la
What is the minimum size of MTU bytes is
What are some drawbacks of implementing a ring topology? In case one workstation on the network varies a malfunction, it can bring down the whole network. Another drawback is t
Encoding data options PVM uses SUN's XDR library to generate a machine independent data format if you request it. Settings for the encoding option are: PvmDataDefault: Use X
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