Pass 200-201 Exam Guide

Full packet capture data involves storing the entire content of packets that traverse a network. This type of data is comprehensive and allows for detailed analysis but requires a significant amount of storage space compared to other data types like transaction, statistical, or session data. References := Cisco Cybersecurity Operations Fundamentals - Module 3: Network Data and Event Analysis

Session data is the data type that is necessary to get information about source/destination ports. Session data is the information about connections between hosts, such as IP addresses, ports, protocols, and duration. Session data can be used to identify the services and applications that are being used on the network, as well as the direction and volume of the traffic. Session data can also help to detect anomalous or malicious behavior, such as port scanning, brute force attacks, or data exfiltration. Session data can be collected from various sources, such as firewalls, routers, switches, or network monitoring tools. References:

• Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 2: Security Monitoring, Lesson 2.2: Data Sources, Topic 2.2.2: Session Data (https://learningnetworkstore.cisco.com/on-demand-e-learning/understanding-cisco-cybersecurity-operations-fundamentals-cbrops-v1-0/CSCU-LP-CBROPS-V1-028093.html)
• Cisco Certified CyberOps Associate Certification Guide, Chapter 3: Data Sources, Section 3.2: Session Data (https://www.ciscopress.com/store/cisco-certified-cyberops-associate-certification-guide-9780136807834)

A phishing attack often involves sending emails that appear to be from reputable sources with the goal of inducing individuals to reveal personal information, such as passwords and credit card numbers. In this case, the email with the subject “price deduction” containing a malicious attachment is designed to trick the recipient into opening the attachment, which can then execute harmful software on their device

NetFlow is a network protocol developed by Cisco for collecting IP traffic information and monitoring network flow. It provides valuable data about the network sessions occurring within the network, such as source and destination IP addresses, port numbers, and protocols used. This session data is useful for understanding traffic patterns, volume, and usage.

References: Cisco’s training and certification materials on NetFlow would discuss how it is used to obtain session data for network analysis.