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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security Operations | 34% | - Security Operations and Architecture
|
| Topic 2: Vulnerability Management | 26% | - Vulnerability Response
|
| Topic 3: Incident Response and Management | 24% | - Incident Investigation
|
| Topic 4: Reporting and Communication | 16% | - Communication
|
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NEW QUESTION # 109
An analyst receives the following output:
Which of the following is the correct number of discovered systems that are allowing unencrypted traffic?
Answer: D
Explanation:
The scan results identify two systems exposing services that permit communications without transport encryption, making B the correct count. The analyst must examine each discovered service rather than merely count open ports, because the security property being evaluated is whether the identified protocol transmits its session or application data without adequate encryption.
Common examples include HTTP instead of HTTPS, Telnet instead of SSH, and legacy FTP rather than protected file-transfer alternatives. The presence of an unencrypted service does not automatically prove that sensitive information is currently being transmitted, but it identifies a configuration that can expose credentials, commands, session content, or application data to interception when used.
The correct vulnerability-management workflow is to map discovered ports to services, determine the security characteristics of those protocols, verify whether encryption is available and enforced, and then prioritize remediation according to asset exposure and business requirements. Where possible, administrators should disable unnecessary cleartext services or replace them with cryptographically protected equivalents.
This question therefore tests interpretation of vulnerability or port-scan output , not simple arithmetic.
The two affected systems are those whose discovered services permit cleartext communications.
Study Guide Reference: Vulnerability Management # Scan Result Interpretation # Ports and Protocols # Cleartext Services # Encryption in Transit # Remediation and Secure Configuration.
NEW QUESTION # 110
A security operations center (SOC) analyst investigates the results of a password spray test conducted by the vulnerability management team. The analyst must:
- Identify Linux systems that have successful and unsuccessful logins
with username "User1".
- Create an output report named "linux-events" of all the events to a
flat file.
The analyst issues the following console command:
ls /var/log/
The shortened output of the command is below:
Which of the following commands should the analyst use to meet the report output requirements?
Answer: B
Explanation:
/var/log/auth.log contains Linux authentication events, including successful and failed login attempts. grep selects entries for User1, and > writes them to the required flat file.
NEW QUESTION # 111
A security analyst must identify documents that contain encoded ActiveMime payloads in a directory containing thousands of files. The analyst runs the following command: grep -rail ActiveMime * The command returns no output.
Which of the following Yet Another Recursive Acronym (YARA) rules should the analyst use to find the suspicious files?
Answer: D
Explanation:
Option C represents the appropriate YARA matching approach because the analyst is searching for an encoded representation of ActiveMime , not necessarily the literal plaintext string. The grep -rail ActiveMime * command performs a case-insensitive recursive search for the textual value ActiveMime. If the payload contains that value encoded-commonly through Base64 or another transformed representation-the literal byte sequence will not be present and grep will therefore fail to identify it.
YARA is designed specifically for pattern-based identification of malicious or suspicious content. Its string modifiers support encoded representations. YARA's official documentation states that the base64 modifier searches for Base64-encoded forms of a specified string, while base64wide extends this behavior to wide- character representations. Therefore, a rule constructed to detect the encoded form of ActiveMime can identify relevant documents without requiring the literal plaintext sequence to occur in the file.
The essential examination concept is the distinction between literal text searching and malware-oriented encoded-pattern matching . Rules that search only for ordinary ASCII ActiveMime reproduce the limitation of the unsuccessful grep command.
Study Guide Reference: Security Operations # Malware Analysis # YARA # Signature/Pattern Matching # Encoded Content # Base64/Base64wide # File Analysis.
NEW QUESTION # 112
Which of the following best explains why sensitive data should be encrypted at rest on laptops?
Answer: A
Explanation:
Encryption at rest primarily protects the confidentiality of stored information when an unauthorized party obtains physical or logical access to the storage medium. This is particularly important for laptops because portable devices can be lost or stolen, giving an attacker possession of the disk outside the organization's normal network and endpoint protections.
NIST guidance on storage encryption specifically addresses laptops and other end-user devices and explains that storage encryption combines encryption and authentication to restrict unauthorized access to stored information. NIST further notes that threats involving lost or stolen end-user devices can expose information to unauthorized parties.
Encryption does not inherently prevent an authenticated and authorized user from copying information while the system is unlocked; data loss prevention controls are more directly suited to that objective. Regulatory requirements may mandate encryption in some environments, but compliance is an external requirement rather than the fundamental security reason encryption at rest exists. Option D confuses confidentiality with integrity and network protection. Encryption of data stored on a laptop is not primarily intended to validate whether network data has been modified.
The examination concept is the CIA triad: encryption primarily supports confidentiality , especially when physical possession of the storage device is lost.
Study Guide Reference: Security Operations # Data Protection # Encryption at Rest # Full-Disk Encryption
# Confidentiality # Lost/Stolen Endpoint Protection.
NEW QUESTION # 113
Which of the following allows an organization to leverage AI in various forms while protecting business objectives and data?
Answer: D
Explanation:
AI usage policies establish organizational boundaries for how artificial intelligence systems may be selected, accessed, configured, and used. They allow an organization to obtain operational benefits from AI while controlling risks involving confidential information, intellectual property, regulated data, model outputs, external AI services, and inappropriate automation. A strong policy can define approved platforms, prohibited data categories, validation requirements, human oversight, retention rules, acceptable use, and escalation procedures.
Prompt engineering is a technical method for constructing inputs that produce more useful model responses. It can improve output quality but does not establish enterprise-wide safeguards for protecting business objectives or sensitive information. A non-disclosure agreement establishes contractual confidentiality obligations between parties; it cannot govern the full technical and operational use of AI systems. An incident response policy determines how security incidents are managed and escalated, but it is reactive and not designed to establish routine AI governance.
CS0-004 explicitly addresses AI within Security Operations. The objectives identify AI risks including hallucinations, data exposure, model poisoning, and malicious prompts and identify governance considerations including legal or regulatory compliance and AI usage policies . AI use cases include log analysis, artifact comparison, incident investigation, event correlation, and automation.
Study Guide Reference: Security Operations # AI in Security Operations # AI Risks # Governance # AI Usage Policies # Data Protection.
NEW QUESTION # 114
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