112-51 Exam Dumps : Network Defense Essentials (NDE) Exam

A false positive alert is a type of IDS alert that occurs when the IDS mistakenly identifies benign or normal traffic as malicious or suspicious, and triggers an alarm, although there is no active attack in progress. A false positive alert can be caused by various factors, such as misconfigured IDS rules, outdated signatures, network anomalies, or legitimate traffic that resembles attack patterns. A false positive alert can waste the time and resources of the security team, as they have to investigate and verify the alert, and also reduce the trust and confidence in the IDS. A false positive alert can be reduced by tuning and updating the IDS, filtering out irrelevant traffic, and using multiple detection methods. A false positive alert is the type of IDS alert Jay has received in the above scenario, as he received an event triggered as an alarm, although there is no active attack in progress.References:

• False Positive Alert- Week 10: Intrusion Detection and Prevention Systems
• What is a False Positive in Cybersecurity?
• How to Reduce False Positives in Intrusion Detection Systems

Finch has implemented the COBO (Corporate-Owned, Business-Only) mobile usage policy in the above scenario. COBO is a policy where the organization provides mobile devices to the employees and restricts them to use the devices only for work-related purposes. The organization has full control over the devices and can enforce security measures, such as encryption, password protection, remote wipe, and application whitelisting or blacklisting. The employees are not allowed to use the devices for personal use, such as browsing the internet, making personal calls, or installing personal apps. COBO is a policy that aims to maximize security and minimize distractions and risks for the organization and the employees.References:

• Mobile usage policy in office - sample, cell phone policy in companies and organization, HR Help Board, 2020
• Employee Cell Phone Policy Template, Workable, 2020
• How Employers Enforce Cell Phone Policies in the Workplace, Indeed, 2022

The state in which Mark encrypted the data in the above scenario is data in use. Data in use refers to data that is being processed or manipulated by an application or a system, such as data stored on RAM or CPU registers. Data in use is the most vulnerable state of data, as it is exposed to various threats, such as memory scraping, buffer overflow, or side-channel attacks, that can compromise the confidentiality, integrity, or availability of the data. Data in use encryption is a technique that protects the data while it is being processed by encrypting it in memory using hardware or software solutions. Data in use encryption prevents unauthorized access or modification of the data, even if the system is compromised or the memory is dumped.Data in use encryption is one of the three types of data encryption, along with data at rest encryption and data in transit encryption123.References:

• Network Defense Essentials Courseware, EC-Council, 2020, pp. 3-23 to 3-24
• Encryption: Data at Rest, Data in Motion and Data in Use, Jatheon, 2020
• Data in Use Encryption: What It Is and Why You Need It, Fortanix, 2020