Pass the Cisco CyberOps Associate 200-201 Questions and answers with Dumpstech

TCP injection is an attack where the attacker sends crafted packets into an existing TCP session. These packets appear to be part of the session.

The presence of many SYN packets with the same sequence number, source, and destination IP but different payloads indicates that an attacker might be injecting packets into the session.

This method can be used to disrupt communication, inject malicious commands, or manipulate the data being transmitted.

References

Understanding TCP Injection Attacks

Analyzing Packet Captures for Injection Attacks

Network Security Monitoring Techniques

An Intrusion Prevention System (IPS) is a security control designed to both detect and actively prevent malicious network activity. Unlike an Intrusion Detection System (IDS), which only monitors and alerts, an IPS must be able to block or drop traffic immediately when a threat is identified. This functional requirement directly determines the appropriate traffic integration method.

Inline deployment places the IPS directly in the path of network traffic, meaning all packets must pass through the device before reaching their destination. This positioning allows the IPS to inspect packets in real time, compare them against known attack signatures, and take immediate action such as dropping packets, resetting connections, or blocking traffic altogether. Because the requirement explicitly states that suspicious traffic must be blocked in real life, inline integration is mandatory.

The other options do not meet the operational requirements of an IPS. Traffic mirroring (SPAN) sends a copy of traffic to a monitoring device but does not allow the IPS to influence or stop traffic flow. Network TAPs also duplicate traffic for analysis but are passive by design and incapable of enforcing security decisions. Passive deployments, by definition, only observe traffic and generate alerts without prevention capabilities.

Placing the IPS inline behind the DMZ firewall and before the core switches ensures that malicious traffic can be stopped before it reaches internal network resources. This approach aligns with cybersecurity operations best practices for protecting sensitive network segments such as the DMZ.

Therefore, inline traffic integration is the correct and verified solution.

In this scenario, the threat actor refers to the individuals or entities responsible for the attack that resulted in a breach of assets and sensitive information. The receptionist received a threatening call but did not take action, leading to an actual breach within 48 hours. References: The explanation is inferred from general cybersecurity knowledge as specific details are not provided in the Cisco Cybersecurity documents linked.

The data shown in the exhibit is typical of what can be captured and displayed using tcpdump, a command-line packet analyzer that allows users to display TCP/IP and other packets being transmitted or received over a network.

 A sandbox interprocess communication service refers to the mechanisms that allow different processes within a sandboxed environment to communicate with each other. Theseinterfaces are crucial for coordinating activities among processes, especially in a restricted environment like a sandbox where direct interaction with the operating system or other processes might be limited for security reasons. This communication is essential for complex applications that require different processes to work together to perform tasks.

References := The Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) material covers various security technologies and how they can be used to protect systems, which includes the use of sandboxing to isolate and monitor potentially malicious code

The user-agent HTTP header field is used in forensics to identify the type of browser used. It contains a characteristic string that allows network protocol peers to identify the operating system and browser of the web-server. This information is crucial in forensic analysis as it can provide insights into the client’s environment1.

References := The importance of the user-agent string in identifying the browser type is discussed in various technical resources, including the Wikipedia page on HTTP header fields2 and articles on GeeksforGeeks1.

Privileges required is a metric in the Common Vulnerability Scoring System (CVSS) that measures the level of access needed to launch a successful attack. The higher the privileges required, the lower the severity of the vulnerability. The privileges required metric has three possible values: none, low, and high. None means that the attacker does not need any privileges to exploit the vulnerability. Low means that the attacker needs privileges that provide basic user capabilities. High means that the attacker needs privileges that provide significant or administrative control over the target. References: Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, page 2-17; 200-201 CBROPS - Cisco, exam topic 1.3.c

Application whitelisting/blacklisting is a technology used to control which applications are allowed to execute on a company’s corporate PCs. Whitelisting allows only approved applications to run, while blacklisting prevents specific applications from running. This approach is effective for managing application usage across an enterprise.

Full packet captures are essential for troubleshooting security and performance issues as they provide detailed information on network traffic (option B). They also allow for reassembling fragmented traffic from raw data, enabling analysts to review complete transactions or sessions (option C). References := Cisco Cybersecurity Operations Fundamentals - Module 3: Network Data and Event Analysis

FAT is a file system that organizes and stores data on a disk. However, FAT has a limitation of 4 GB for the maximum file size, which means that any file larger than that will be corrupted. To resolve this issue, the engineer can use FAT32, which is an improved version of FAT that supports files up to 32 GB. Alternatively, the engineer can use other file systems that have higher file size limits, such as Ext4 or NTFS. References := Cisco Cybersecurity Operations Fundamentals, Module 5: Security Policies and Procedures, Lesson 5.1: Data Retention, Topic 5.1.1: Data Retention Policies and Procedures