NETWORK SECURITY
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To analyse network trends and to detect intruders
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To examine the data packets at a certain IP address
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To copy the data packets and analyse them
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It is not legitimate to use packet sniffing software
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Detailed explanation-1: -For example, a network sniffer can monitor network usage and track down someone using excessive bandwidth at a university or business organization. You can also use them to help find security holes in your environment. These are all legitimate uses for a network sniffer.
Detailed explanation-2: -Packet sniffing is a technique whereby packet data flowing across the network is detected and observed. Network administrators use packet sniffing tools to monitor and validate network traffic, while hackers may use similar tools for nefarious purposes.
Detailed explanation-3: -Wireshark is a network protocol analyzer, or an application that captures packets from a network connection, such as from your computer to your home office or the internet. Packet is the name given to a discrete unit of data in a typical Ethernet network. Wireshark is the most often-used packet sniffer in the world.
Detailed explanation-4: -Hardware packet sniffers plug directly into a network and store or forward the information they collect. Once the raw packet data is captured, the packet sniffing software analyzes it and presents it in a readable form so that the person using the software can make sense of it.