Cisco Updated 200-201 Exam Questions and Answers by morgan

 During the collection phase of the forensic process, data related to a specific event is labeled and recorded to preserve its integrity. This step ensures that the data remains unaltered and authentic from the time of collection until it is presented as evidence, maintaining the chain of custody. References := Cisco Cybersecurity Operations Fundamentals - Module 6: Security Incident Investigations

A regular expression (regex) is a sequence of characters that defines a search pattern for text. A regex can be used to extract custom properties from log messages or events in a SIEM platform. In this case, the regex that matches the phrase “File: Clean” exactly is ^File: Clean$. The ^ symbol indicates the beginning of the line and the $ symbol indicates the end of the line. The regex ensures that no other characters are before or after the phrase. References:

• Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, Module 5: Security Policies and Procedures, Lesson 5.3: Data and Event Analysis
• 200-201 CBROPS - Cisco, Exam Topics, 5.0 Security Policies and Procedures, 5.3 Analyze data as part of security monitoring activities
• Cisco Certified CyberOps Associate Overview - Cisco Learning Network, Videos, 5.3 Analyze data as part of security monitoring activities

• Defense-in-depth is a layered security strategy that aims to protect information and resources through multiple security measures.
• One of its key principles is the concept of least privilege, which means providing users and systems with the minimum level of access necessary to perform their job functions.
• By assigning only the necessary permissions, the attack surface is reduced, and the potential damage from a compromised account or system is minimized.
• This principle helps in mitigating the risk of unauthorized access and limits the capabilities of an attacker if they gain access to an account.

References

• Defense-in-Depth Strategy by NIST
• Principle of Least Privilege in Cybersecurity
• Layered Security Approach Explained

• The regular expression provided is: .\.(pd][Oo][Cc)|[Xx][LI][Ss]|[Pp][Pp][Tt]) HTTP/1 .[01]
• This regular expression is designed to match file extensions for Word (.doc), Excel (.xls), and PowerPoint (.ppt) files in HTTP network sessions.
• The regular expression uses character classes and alternatives to match different case variations of these file extensions.
• The part .\.(pd][Oo][Cc)|[Xx][LI][Ss]|[Pp][Pp][Tt]) matches the file extensions, and HTTP/1 .[01] ensures that the match is in the context of HTTP version 1.0 or 1.1.

References

• Cisco ASA Regular Expressions Documentation
• Understanding Regular Expressions in Network Security
• Filtering and Capturing HTTP Traffic with Regex