Explanation: NetFlow does not capture the entire contents of a packet. Instead, NetFlow collects metadata, or data about the flow, not the flow data itself. NetFlow information can be viewed…
Explanation: The tcpdump command line tool is a packet analyzer that captures detailed packet protocol and content data. It can display packet captures in real time or write them to…
Explanation: AVC uses Cisco Next-Generation Network-Based Application Recognition (NBAR2) to discover and classify the applications in use on the network.
Explanation: Security Information and Event Management (SIEM) is a technology that provides real-time reporting and long-term analysis of security events. Two SIEM platforms used by organizations are Splunk and Security…
Explanation: Statistical data is created through the analysis of other forms of network data. Conclusions from these analyses can be used to describe or predict network behavior.
Explanation: On a Windows host, security logs record events related to security, such as login attempts and operations related to file or object management and access.
Explanation: The components of a 5-tuple include a source IP address and port number, destination IP address and port number, and the protocol in use.
A massive data breach that exposed over 184 million online accounts has been discovered, and experts are calling the stolen information a ‘cybercriminal’s dream.’ The trove of Apple, Facebook, and…
I was sitting in class when I first saw it. Miss Weaver had been my teacher for a few months, and was known around Stagwood Elementary for the stack of…