200-201 Exam Dumps - Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS)

 Volatile data is information that is stored in memory or other temporary storage that is lost when the power is turned off or lost. According to NIST SP 800-86, login sessions and swap files are considered volatile because they exist in the system’s memory and can be lost or changed rapidly

 Encryption ensures that data is secure and unreadable to unauthorized individuals without the proper decryption key. It is a critical aspect of maintaining data confidentiality and security, especially in the transmission of sensitive information over potentially insecure networks1.

References := What Is Encryption? Explanation and Types - Cisco

Asymmetric cryptography, also known as public key cryptography, involves two keys: a public key for encryption and a private key for decryption. This method ensures that even if the public key is known, only the holder of the private key can decrypt the message, thus providing a secure way to transfer data. References: Asymmetric encryption is beneficial for secure data transfer because it allows message authentication, non-repudiation, and detects tampering, although it is slower than symmetric encryption

DDoS attacks are divided into two categories: reflected and direct. Reflected attacks use a third-party system to amplify the attack traffic and send it to the target. For example, an attacker can send a spoofed request to a DNS server, which will reply with a large amount of data to the target’s IP address. Direct attacks send the attack traffic directly from the attacker’s system or a botnet to the target. For example, an attacker can send a large number of SYN packets to the target’s port, exhausting its resources. References := Cisco Cybersecurity Operations Fundamentals, Module 1: Security Concepts, Lesson 1.3: Common Network Application Operations and Attacks, Topic 1.3.4: Denial-of-Service Attacks

The attack vector score in the Common Vulnerability Scoring System (CVSS) reflects how a vulnerability can be exploited. A higher score is given when the attack can be conducted remotely, making it easier for an attacker to exploit the vulnerability without physical access to the vulnerable component3. References: The CVSS specification document provides a detailed explanation of how the attack vector score is determined, emphasizing the impact of the ease of exploitation on the score

The exhibit shows a Stealthwatch dashboard displaying information on alarming hosts, alarms by type, and today’s alarms. On the left side under “Top Alarming Hosts,” there are five host IP addresses listed with their respective categories indicating different types of alerts including ‘Data Hoarding’ and ‘Exfiltration.’ In “Alarms by Type” section at center top part of image shows bar graphs representing various alarm types including ‘Crypto Violation’ with their respective counts. On right side under “Today’s Alarms,” there’s a table showing the details of each alarm such as the host IP, the alarm type, the severity, and the time. The potential threat identified in this dashboard is that there are two active data exfiltration alerts, one for host 10.201.3.149 and another for host 10.10.101.24. Data exfiltration is the unauthorized transfer of data from a compromised system to an external destination, such as a command and control server or a malicious actor. This can result in data loss, breach of confidentiality, and damage to the organization’s reputation and assets. References := Cisco Cybersecurity Operations Fundamentals - Module 7: Network and Host Forensics

The output indicates that several ports are open on the server with IP address 172.18.104.139, including port 22/tcp for SSH, port 25/tcp for SMTP, port 110/tcp for POP3, and port 143/tcp for IMAP - these are typically associated with a web server. References := Cisco Cybersecurity Source Documents