Vce 200-201 Questions Latest

• A greylist in endpoint applications refers to a list of items that are not yet classified as either good (whitelisted) or bad (blacklisted).
• The primary function of a greylist is to hold applications, processes, or files that are under observation due to their unknown status.
• These items are neither trusted nor immediately flagged as harmful, allowing security teams to monitor them closely for any suspicious behavior.
• By placing items on a greylist, security operations can prevent potential threats without disrupting legitimate processes, awaiting further analysis to determine their true nature.

References

• Cisco Cybersecurity Operations Fundamentals
• Endpoint Security Best Practices
• Greylisting Concepts in Cybersecurity

The Stealthwatch dashboard indicates that there is an active policy violation associated with host 10.201.3.149. Stealthwatch is a security analytics tool that uses network telemetry to detect and respond to threats. In this case, the dashboard has flagged a policy violation, which means that activity from this host has been detected that goes against the defined security policies, potentially indicating a security threat or unauthorized access.

References := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) training material, which includes information on how to use tools like Stealthwatch to monitor network traffic and identify potential security threats1.

 Indicators of Compromise (IoC) are pieces of forensic data, such as system log entries or files, that suggest an intrusion may have occurred. Indicators of Attack (IoA) are signs that an attack may be underway, allowing organizations to take action before any potential breach occurs.

References: The CBROPS course materials cover the concepts of IoC and IoA, explaining how they are used in cybersecurity operations to detect and prevent security incidents.

• Data encapsulation is a process in networking where the protocol stack of the sending host adds headers (and sometimes trailers) to the data.
• Each layer of the OSI or TCP/IP model adds its own header to the data as it passes down the layers, preparing it for transmission over the network.
• For example, in the TCP/IP model, data starts at the application layer and is encapsulated at each subsequent layer (Transport, Internet, and Network Access) before being transmitted.
• This encapsulation ensures that the data is correctly formatted and routed to its destination, where the headers are stripped off in reverse order by the receiving host.

References

• Networking Fundamentals by Cisco
• OSI Model and Data Encapsulation Process
• Understanding TCP/IP Encapsulation