An analyst is reviewing the output from some recent network enumeration activities. The following entry relates to a target on the network: Based on the above output, which Of the following tools or techniques is MOST likely being used?
Correct Answer: B
Port triggering is a technique that allows inbound traffic to access certain ports on a device only after an outbound traffic request has been made from those ports. It can enhance the security and performance of a device by opening ports only when needed and closing them when not in use. The output from the network enumeration activities shows that port 21 (FTP) and port 22 (SSH) are open only after port 80 (HTTP) has been accessed, which indicates that port triggering is most likely being used. A web application firewall, an intrusion prevention system, port isolation, or port address translation are other techniques that can affect network traffic, but they do not match the description of the output from the network enumeration activities. Reference: https://www.techopedia.com/definition/3846/port-triggering
CS0-002 Exam Question 112
A company is required to monitor for unauthorized changes to baselines on all assets to comply with industry regulations. Two of the remote units did not recover after scans were performed on the assets. An analyst needs to recommend a solution to prevent recurrence. Which of the following is the best way to satisfy the regulatory requirement without impacting the availability to similar assets and creating an unsustainable process?
Correct Answer: B
A) Manually review the baselines daily and document the results in a change history log is not correct. This option would not prevent the recurrence of the problem, as it does not address the root cause of why the remote units did not recover after scans were performed. Moreover, this option would create an unsustainable process, as it would require a lot of time and resources to manually review and document the baselines of all assets on a daily basis. C) Implement a new scanning technology to satisfy the monitoring requirement and train the team is not correct. This option would not guarantee that the problem would not recur, as it is possible that the new scanning technology would also cause issues with the remote units or other assets. Furthermore, this option would incur additional costs and efforts to acquire, deploy, and maintain the new scanning technology and train the team on how to use it. D) Purchase new remote units from other vendors with a proven ability to support scanning requirements is not correct. This option would not be feasible or cost-effective, as it would require replacing all the remote units with new ones from different vendors. This option would also introduce new risks and challenges, such as compatibility, interoperability, or vendor lock-in. Explanation: The correct answer is B. Document exceptions with compensating controls to demonstrate the risk mitigation efforts. Compensating controls are alternative or additional controls that are implemented when the primary or required controls are not feasible or effective. Compensating controls can help to reduce the risk to an acceptable level and satisfy the regulatory requirements, as long as they are documented and justified1.
CS0-002 Exam Question 113
While investigating reports or issues with a web server, a security analyst attempts to log in remotely and recedes the following message: The analyst accesses the server console, and the following console messages are displayed: The analyst is also unable to log in on the console. While reviewing network captures for the server, the analyst sees many packets with the following signature: Which of the following is the BEST step for the analyst to lake next in this situation?
Correct Answer: D
Cryptomining malware, or cryptojacking, is a type of malware that hides on a device and uses its computing resources to mine for valuable online currencies like Bitcoin. Cryptomining malware can cause performance issues, increased energy consumption, overheating, or hardware damage1 The analyst encountered cryptomining malware on the web server, as indicated by the following signs: The analyst was unable to log in remotely or on the console, as the malware blocked access to prevent detection or removal. The console messages showed that the server was running out of memory and CPU resources, as the malware consumed all available resources for mining. The network captures showed many packets with a signature of "Stratum", which is a protocol used for communication between miners and mining pools2 The best step for the analyst to take next is to reboot the server and disable any cron jobs or startup scripts that start the mining software. This can help stop the mining activity and restore access to the server. The analyst should also scan the server for any other traces of malware and remove them.
CS0-002 Exam Question 114
An organization is focused on restructuring its data governance programs and an analyst has been Tasked with surveying sensitive data within the organization. Which of the following is the MOST accurate method for the security analyst to complete this assignment?
Correct Answer: A
A data governance program is a collection of practices, policies, and procedures that manage, leverage, and protect the data assets of an organization1. It requires changing the workplace culture and adding some software1. To survey sensitive data within the organization, the most accurate method is to perform an enterprise-wide discovery scan that can identify and classify data from various sources and systems2. This way, the analyst can have a comprehensive view of the data landscape and its quality, security, accessibility, and usage. Consulting with an internal data custodian (B) or reviewing enterprise-wide asset inventory may provide some insights, but not as accurate or complete as a discovery scan. Creating a survey and distributing it to data owners (D) may be time-consuming and unreliable, as data owners may not have the full knowledge or awareness of their data.
CS0-002 Exam Question 115
A digital forensics investigator works from duplicate images to preserve the integrity of the original evidence. Which of the following types of media are most volatile and should be preserved? (Select two).
Correct Answer: A,F
Memory cache and swap volume are types of media that are most volatile and should be preserved during a digital forensics investigation. Volatile media are those that store data temporarily and lose their contents when the power is turned off or interrupted. Memory cache is a small and fast memory that stores frequently used data or instructions for faster access by the processor. Swap volume is a part of the hard disk that is used as an extension of the memory when the memory is full or low .