Free Access Cisco 200-201 New Release

 CDFS stands for Compact Disc File System, which is a file system used by Mac OS to store data on CDs. CDFS is also known as ISO 9660, which is a standard format for data interchange on optical discs. CDFS allows files to be accessed by different operating systems, such as Windows, Linux, and Mac OS. Therefore, an ISO file that is stored in CDFS format is data from a CD copied using Mac-based system. References := Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 4: Network Intrusion Analysis, Lesson 4.4: File Type Analysis, Topic 4.4.1: File Systems, page 4-40.

 In Wireshark, to filter traffic for a specific LAN, the correct syntax uses ip.src== and ip.dst== to specify the source and destination IP addresses. The /16 denotes the subnet mask, indicating that we are interested in the entire 10.11.x.x range. This filter will show all traffic where both the source and destination IP addresses fall within the specified LAN, excluding any internet traffic. References: The information is based on the Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) course, which covers network intrusion analysis and the use of tools like Wireshark for traffic analysis1.

An untampered disk image is one that has not been altered since its creation. This is verified by comparing the stored hash of the image at the time of creation with a newly computed hash; if they match, the image is considered untampered. Tampered images, on the other hand, may be used during the root cause analysis process to understand how and what was altered12. References: The differences between tampered and untampered disk images are discussed in cybersecurity literature, including Cisco’s certification guides, which explain the importance of hash matching for verifying the integrity of disk images