200-201 Cisco Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) Free Practice Exam Questions (2026 Updated)

A command and control server (C2 or C&C) is a server that is used by attackers to communicate with and control compromised systems, such as bots, zombies, or backdoors. The C2 server can send instructions to the compromised systems, such as executing commands, downloading files, uploading data, or launching attacks. The C2 server can alsoreceive information from the compromised systems, such as system information, keystrokes, screenshots, or credentials. References:

Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) v1.0, Module 3: Network Intrusion Analysis, Lesson 3.4: Malware

Cisco Certified CyberOps Associate Overview, Exam Topics, 3.4 Compare and contrast types of malware

 Tampered images are disk images that have been modified or altered in some way after they were captured from the original source. Tampered images may have different stored and computed hash values, which indicate that the integrity of the image has been compromised. Tampered images are not reliable or valid sources of evidence for forensic investigations, as they may contain false or misleading information. Untampered images are disk images that have not been changed or manipulated after they were acquired from the original source. Untampered images have the same stored and computed hash values, which verify that the image is an exact copy of the original disk. Untampered images are used for forensic investigations, as they preserve the original state and content of the disk and provide accurate and trustworthy evidence. References:

Contrasting tampered and untampered disk images

What is a difference between tampered and untampered disk images?

An SSL certificate enables the establishment of a secure connection between the client and the server using the TLS protocol. The client and the server exchange keys and agree on a cipher suite to encrypt and decrypt the data transmitted over the network. References := Cisco Cybersecurity Source Documents

Data integrity verification involves using tools to compute the message digest of data. A message digest is a cryptographic hash function containing a string of digits created by a one-way hashing formula. This digest, which serves as a unique identifier, can be used to verify the integrity of copied data by comparing it to the original data’s digest. If the digests match, it means the data has not been altered, ensuring its integrity.

The concept of data integrity and the use of message digests are fundamental security concepts taught in the Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) course. This course covers the essential skills and knowledge needed to monitor alerts and breaches, and to understand and follow established procedures for response to alerts converted to incidents

 For high availability and responsiveness, especially where milliseconds of latency are critical, an engineer must analyze the network’s performance in detail. Total throughput on the interface of the router will provide information on the bandwidth and traffic load, which is essential for understanding if the network can handle the current and projected traffic without delays. NetFlow records are crucial for this analysis as they provide data about the traffic flow across the network, which helps in identifying patterns, peak usage times, and types of traffic. This information is vital for making informed decisions to optimize traffic movement and minimize latency123.

References :=

Cisco’s guide on Network Traffic Analysis1.

Cisco’s white paper on Network Security Policy: Best Practices2.

Cisco’s documentation on Implementation of High Availability

Ransomware is a form of malicious software designed to encrypt a victim’s data and deny access until a ransom is paid. Once executed, ransomware typically encrypts files using strong cryptographic algorithms and displays a ransom note demanding payment, often in cryptocurrency, in exchange for a decryption key.

Unlike spyware, which focuses on data theft, ransomware primarily targets availability and integrity by rendering data unusable. Modern ransomware variants may also exfiltrate data before encryption to apply additional pressure on victims through extortion.

Option A describes command-and-control mechanisms, not ransomware. Option B refers to data-stealing malware such as spyware or trojans. Option D describes a storage issue, not a cyberattack.

Cybersecurity operations fundamentals identify ransomware as one of the most impactful attack types due to its ability to disrupt business operations, cause financial loss, and damage organizational reputation.

Therefore, the correct definition of a ransomware attack is that it encrypts a victim’s data and prevents access, making Option C correct.

NetFlow provides a more efficient way of recording and analyzing network traffic patterns over an extended period of time compared to syslog messages, full packet capture, or firewall event logs. It collects metadata about traffic flows traversing the network devices which can be used for understanding normal baseline behavior as well as identifying anomalies. References := Cisco Certified CyberOps Associate Overview

Data tunneling is a technique used to conceal malicious or unauthorized data by embedding it within legitimate protocols or system processes. Attackers commonly use tunneling to bypass security controls, evade detection, and exfiltrate data through allowed network channels such as HTTP, DNS, or HTTPS.

Instead of transmitting malicious data directly, which may be blocked or flagged, the attacker encapsulates it within normal-looking traffic. For example, command-and-control communications may be hidden inside DNS queries, or stolen data may be exfiltrated within HTTP requests. To security tools, this traffic appears legitimate unless deep inspection or behavioral analysis is applied.

Options A, B, and C describe standard networking or cryptographic operations, not tunneling. Decryption, packetization, and data reassembly are normal functions of communication systems and are not inherently malicious.

Cybersecurity operations documentation highlights data tunneling as a common technique used in advanced persistent threats (APTs) and covert exfiltration scenarios. Detecting tunneling often requires correlation, anomaly detection, and protocol analysis rather than signature-based detection alone.

Therefore, data tunneling refers to hiding malicious data within legitimate system processes, making Option D the correct answer.

NetFlow is a network protocol developed by Cisco for collecting IP traffic information and monitoring network traffic. It collects metadata of the IP traffic flowing across networking devices like routers and switches. On the other hand, Traffic mirroring involves capturing all the data packets that flow through a particular point in the network to analyze or inspect them later. References := Cisco Cybersecurity Operations Fundamentals

 According to the NIST Computer Security Incident Handling Guide, the next step in handling an event after confirming a potential indicator of compromise on an endpoint is to collect public information on the malware behavior. This step involves searching for information from various sources, such as antivirus vendors, security blogs, threat intelligence feeds, and online forums, to learn more about the characteristics, capabilities, and impact of the malware. This information can help the SOC team to identify the type, severity, andscope of the incident, as well as to determine the appropriate response actions and mitigation strategies. Isolating the infected endpoint, performing forensics analysis, and prioritizing incident handling are subsequent steps that follow after collecting public information on the malware behavior. References:

Computer Security Incident Handling Guide

SP 800-61 Rev. 2, Computer Security Incident Handling Guide

Application-level allow list refers to the practice of specifying an index of approved applications that are permitted to be executed in a system environment or network, which means only specific files are allowed while everything else is denied by default, enhancing security.

A close-up of several blue rectangular boxes Description automatically generated

In digital forensics and incident response, disk imaging is a critical process used to create an exact copy of a storage device for analysis. An untampered disk image—also referred to as a forensically sound image—preserves the original data exactly as it existed at the time of acquisition. This includes file contents, metadata, deleted files, and unallocated space. Untampered images are verified using cryptographic hash values to ensure integrity and admissibility.

A tampered disk image, on the other hand, is one that has been altered after acquisition or intentionally manipulated to conceal or insert data. Tampering may involve modifying files, altering metadata, injecting hidden data, or using steganographic techniques to store hidden items within the image. Such changes invalidate the integrity of the evidence and compromise forensic analysis.

Options A and B are incorrect because security is not defined by whether an image is tampered or untampered; rather, integrity and authenticity are the determining factors. Option C is incorrect because untampered images do not intentionally store hidden items—they preserve data as-is.

Cybersecurity operations documentation emphasizes that maintaining untampered disk images is essential for reliable investigation, legal proceedings, and accurate root-cause analysis. Any modification to an image must be documented and performed on a working copy, never the original.

Therefore, the correct distinction is that tampered disk images may store hidden or altered items, making Option D the correct answer.

 The regex [a−z]+ matches one or more lowercase letters from a to z. The plus sign (+) indicates that the preceding character set [a−z] can appear one or more times, thus matching strings of only lowercase letters1.

References := This explanation is consistent with standard regex syntax as described in various programming and scripting languages documentation