PDF問題（2026年最新）実際のCisco 300-220試験問題 [Q35-Q58]

PDF問題（2026年最新）実際のCisco 300-220試験問題

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Cisco 300-220試験に備えるために、候補者はサイバーセキュリティの概念、ネットワークの基礎知識、およびCiscoテクノロジーの良好な理解を持っている必要があります。また、脅威ハンティング、防御オペレーション、およびインシデント対応と復旧プロセスにも精通している必要があります。Ciscoは、講師主導のコース、オンライントレーニング、および学習資料など、試験に備えるためのトレーニングおよび認定リソースを幅広く提供しています。

 

質問 # 35
Which of the following is NOT a common threat modeling technique?

• A. Attack surface analysis
• B. Social engineering assessment
• C. STRIDE model
• D. Data flow diagrams

正解：B

質問 # 36
What artifact would be considered at the top of the Pyramid of Pain and indicates a high level of sophistication in modifying behaviors to avoid detection?

• A. Domain names
• B. TTPs
• C. MD5 hashes
• D. IP addresses

正解：B

質問 # 37
Which phase of the threat hunting process involves analyzing security logs, network traffic, and endpoint data?

• A. Data Processing
• B. Data Visualization
• C. Data Analysis
• D. Data Collection

正解：C

質問 # 38
What is the purpose of the data processing phase in the threat hunting process?

• A. To block malicious traffic at the perimeter
• B. To prioritize threats based on severity
• C. To enrich collected data with threat intelligence
• D. To filter and normalize data for analysis

正解：D

質問 # 39
What is the importance of threat intelligence in threat hunting?

• A. Threat intelligence is only relevant for external threats, not internal threats.
• B. Threat intelligence provides real-time alerts to potential threats.
• C. Threat intelligence is not necessary for effective threat hunting.
• D. Threat intelligence allows threat hunters to anticipate and detect threats before they manifest.

正解：D

質問 # 40
In threat intelligence handling, cataloging is important for:

• A. Ensuring compatibility with legacy systems
• B. Increasing the speed of the internet connection
• C. Making intelligence easily accessible for analysis
• D. Reducing the size of the IT department

正解：C

質問 # 41
Which of the following is a common technique used in threat hunting to identify anomalies in network traffic?

• A. Signature-based detection
• B. Packet capturing
• C. Network segmentation
• D. DNS monitoring

正解：B

質問 # 42
When conducting threat hunting, what should cybersecurity professionals prioritize?

• A. Identifying and remediating all vulnerabilities in the network
• B. Identifying and responding to active threats in the network
• C. Conducting regular security training for employees
• D. Monitoring network traffic for compliance purposes

正解：B

質問 # 43
A comprehensive playbook addresses which phases of incident response? (Choose two)

• A. Lunch break scheduling
• B. Detection
• C. Recovery
• D. Budget planning

正解：B、C

質問 # 44
Which technique involves monitoring network traffic for unusual or suspicious patterns that may indicate a potential threat?

• A. Behavioral analysis
• B. Signature-based detection
• C. Network traffic analysis
• D. Endpoint logging

正解：C

質問 # 45
During which step of the Threat Hunting Process do threat hunters typically use security tools like SIEMs and EDR?

• A. Analyzing existing threat intelligence
• B. Deploying security tools
• C. Validating the hypothesis
• D. Identifying potential threats

正解：B

質問 # 46
What is the purpose of threat modeling in the context of cybersecurity?

• A. Generating attack vectors
• B. Prioritizing cybersecurity risks
• C. Designing secure systems
• D. Identifying specific threats

正解：B

質問 # 47
A threat hunter wants to detect fileless malware activity usingCisco Secure Endpoint. Which behavior would MOST strongly indicate fileless execution?

• A. Files with unknown hash reputation
• B. Legitimate system processes executing encoded commands
• C. Processes spawning from user-writable directories
• D. Executables running from Program Files

正解：B

解説：
The correct answer islegitimate system processes executing encoded commands. Fileless malware avoids writing binaries to disk and instead abuses trusted processes such as PowerShell, WMI, or rundll32.
Encoded or obfuscated commands executed by legitimate binaries are a strong indicator offileless execution and defense evasion. Cisco Secure Endpoint provides deep visibility into command-line arguments and process behavior, enabling detection of this technique.
Option A is normal behavior. Option B may indicate suspicious execution but still involves files. Option D relies on file presence, which fileless attacks intentionally avoid.
This technique aligns withMITRE ATT&CK - Command and Scripting Interpreter and Defense Evasion and is directly relevant toCBRTHD exam objectivesrelated to endpoint-based threat hunting.
Therefore,Option Cis the correct answer.

質問 # 48
What is the first step in the threat hunting process?

• A. Initiating incident response procedures
• B. Developing threat models
• C. Identifying potential threats
• D. Analyzing log files

正解：C

質問 # 49
What is the significance of attribution in cybersecurity investigations?

• A. Attribution is a legal requirement
• B. Attribution helps in understanding the motives and capabilities of threat actors
• C. Attribution is not important in cybersecurity investigations
• D. Attribution helps in determining the cost of a cyber incident

正解：B

質問 # 50
Why is it important for organizations to analyze and act on threat hunting outcomes?

• A. To avoid regulatory fines
• B. To improve their security posture and prevent future incidents
• C. To increase the complexity of their network infrastructure
• D. To identify the threat actors behind attacks

正解：B

質問 # 51
Which technique involves analyzing network traffic patterns to identify malicious activity?

• A. Intrusion detection system
• B. Network traffic analysis
• C. SIEM correlation analysis
• D. File integrity monitoring

正解：B

質問 # 52
Which of the following types of analysis is commonly used to track financial transactions and money flow in threat actor attribution?

• A. Financial analysis
• B. Emergency response analysis
• C. Linguistic analysis
• D. Forensic analysis

正解：A

質問 # 53
Which of the following is a disadvantage of machine learning in cybersecurity?

• A. It requires extensive training data
• B. It can automatically update security policies
• C. It can operate without any human intervention
• D. It can process large datasets quickly

正解：A

質問 # 54
A security architect is designing a threat model for a multi-tier cloud application that includes public APIs, backend microservices, and an identity provider. The goal is to identify how an attacker could chain multiple weaknesses together to achieve account takeover and data exfiltration. Which threat modeling technique is MOST appropriate?

• A. STRIDE analysis to enumerate threat categories per component
• B. Attack trees to model adversary objectives and paths
• C. DREAD scoring to assess impact and exploitability
• D. CVSS scoring to prioritize vulnerabilities by severity

正解：B

解説：
The correct answer isAttack trees. Attack trees are uniquely suited for modelingmulti-step adversary behavior, which is essential when analyzing complex attack chains such as account takeover followed by data exfiltration.
Attack trees begin with ahigh-level attacker goal(for example, "Exfiltrate customer data") and then break that goal into multiple branches representing different paths an attacker could take. These paths can include credential compromise, API abuse, privilege escalation, lateral movement, and persistence. This structure mirrors how real adversaries think and operate.
Option A (STRIDE) is useful for identifying broad threat categories-such as spoofing, tampering, or information disclosure-but it does not naturally capturesequential attack paths. Option B (CVSS) focuses on vulnerability severity scoring, not adversary behavior. Option D (DREAD) assesses risk impact but does not visualize how attacks unfold across systems.
For threat hunters and defenders, attack trees provide ashared mental modelbetween architects, SOC teams, and red teams. They directly inform detection engineering by highlightingcritical choke pointswhere attacker behavior must occur, such as token abuse, API enumeration, or anomalous role assumption in cloud environments.
In modern cloud security, where breaches often involvemultiple low-severity issues chained together, attack trees offer far greater strategic value than component-by-component analysis. They also align closely with MITRE ATT&CK mapping, enabling defenders to translate threat models into actionable hunts.
Thus, optionCis the most appropriate and professionally validated answer.

質問 # 55
How can Threat Actor Attribution assist in developing targeted security measures?

• A. By focusing on generic security measures
• B. By identifying specific threat actor tactics and capabilities
• C. By avoiding attribution altogether
• D. By blocking all incoming network traffic

正解：B

質問 # 56
In the context of Threat Hunting Outcomes, what does "TTPs" stand for?

• A. Threat Testing Protocols
• B. Tactics, Techniques, and Procedures
• C. Technical Threat Patterns
• D. Targeted Threat Personnel

正解：B

質問 # 57
A mitigation strategy for blocking C2 traffic that involves analyzing behavioral patterns is known as:

• A. Increasing network bandwidth
• B. Whitelisting all inbound connections
• C. Disabling network monitoring tools
• D. Deploying anomaly-based detection

正解：D

質問 # 58
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