View Full Cisco 300-220 Exam Dumps and Practice Test Dumps
Question 21.
Which technique helps hunters investigate suspicious PowerShell activity?
- Disk defragmentation
- Screen calibration
- Cable mapping
- Command-line analysis
Correct Answer: 4
Explanation:
Command-line analysis is valuable when investigating PowerShell activity because it can reveal the commands, parameters, scripts, and execution context used by a process. Threat hunters can examine command-line telemetry for suspicious encoded commands, unusual download operations, execution of administrative utilities, or activity inconsistent with normal user behavior. PowerShell is a legitimate Windows administration technology, so its presence alone does not indicate compromise. Analysts should correlate command-line information with process ancestry, user identity, timestamps, network connections, and endpoint events to determine whether the activity represents legitimate administration or potentially malicious execution.
Question 22.
What does behavioral analysis primarily examine during threat hunting?
- Hardware inventory
- Activity patterns
- License expiration
- Cable length
Correct Answer: 2
Explanation:
Behavioral analysis examines patterns of activity rather than relying solely on static indicators. A threat hunter may investigate unusual process relationships, authentication behavior, network communication, file access, or system changes. This approach can identify suspicious activity even when attackers modify file hashes, domains, or other easily changed indicators. Hardware inventory and license information serve administrative purposes, while cable length is a physical networking consideration. Behavioral analysis is especially useful against threats that attempt to evade signature-based detection by changing their tools while continuing to perform similar operational actions.
Question 23.
Which artifact can help identify a suspicious executable downloaded to an endpoint?
- File metadata
- Monitor resolution
- Keyboard model
- Screen orientation
Correct Answer: 1
Explanation:
File metadata can provide useful information about an executable during a threat investigation. Depending on the operating system and available telemetry, analysts may examine creation times, modification times, file paths, digital signatures, ownership information, and other attributes. Metadata alone does not prove that a file is malicious, but it can help establish a timeline and provide investigative clues. Hunters can strengthen their analysis by correlating file metadata with process execution, download activity, network connections, threat intelligence, and endpoint security events to determine how and why the executable appeared on the system.
Question 24.
Which security practice helps hunters distinguish normal activity from anomalies?
- Removing baselines
- Disabling logging
- Establishing behavioral baselines
- Ignoring historical patterns
Correct Answer: 3
Explanation:
Behavioral baselines describe what normal activity generally looks like within an environment. Establishing these baselines allows threat hunters to identify meaningful deviations, such as unusual login times, unexpected data transfers, unfamiliar processes, or abnormal network destinations. A baseline does not automatically identify malicious activity, because legitimate changes can also produce deviations. Removing baselines or disabling logging reduces investigative visibility, while ignoring historical patterns makes anomaly analysis more difficult. Effective hunting combines baseline information with threat intelligence, environmental knowledge, and contextual evidence to determine whether an unusual event warrants investigation.
Question 25.
Which data source can reveal repeated authentication failures against an account?
- Identity logs
- Printer status
- Storage SMART data
- BIOS inventory
Correct Answer: 1
Explanation:
Identity or authentication logs can reveal repeated failed login attempts against user accounts. Hunters may examine the source address, account name, authentication method, timestamps, and target service to determine whether the pattern suggests password guessing, credential stuffing, misconfiguration, or normal user behavior. Printer status and storage health information do not normally provide authentication details, while BIOS inventory describes firmware and hardware characteristics. Repeated authentication failures become more significant when correlated with successful authentication, unusual source locations, unfamiliar devices, or other indicators of account compromise.
Question 26.
What does an attack surface represent in cybersecurity?
- Encrypted backup copies
- Exposed opportunities for attack
- Archived security reports
- Internal documentation
Correct Answer: 2
Explanation:
An attack surface represents the collection of systems, services, applications, interfaces, accounts, and other exposure points that could potentially be targeted by an adversary. Threat hunters can use knowledge of the attack surface to understand where suspicious activity might originate or which assets require stronger monitoring. The attack surface changes as organizations deploy new applications, expose services, modify access controls, or retire systems. Encrypted backups, archived reports, and internal documentation may be important security resources, but they do not by themselves define the organization’s attack surface.
Question 27.
Which evidence is especially useful for reconstructing an intrusion timeline?
- Event timestamps
- Monitor dimensions
- Asset purchase dates
- Cable categories
Correct Answer: 1
Explanation:
Event timestamps allow analysts to place security observations into chronological order. A reliable timeline can reveal relationships between activities such as initial access, process execution, credential use, lateral movement, and data access. Accurate timestamps from multiple sources also help investigators determine which events occurred before or after other activities. Monitor dimensions and cable categories are unrelated to intrusion timelines, while asset purchase dates provide general lifecycle information rather than detailed event sequencing. Timestamp normalization and clock synchronization are important because inconsistent system clocks can complicate forensic and threat-hunting analysis.
Question 28.
Which approach can help identify previously unknown malicious behavior?
- Static asset naming
- Behavioral hunting
- Hardware replacement
- Password expiration
Correct Answer: 2
Explanation:
Behavioral hunting focuses on suspicious actions and patterns rather than depending entirely on known indicators. This approach can help uncover previously unknown malicious behavior when the exact malware sample, domain, or file hash has not been identified. Hunters may investigate unusual process relationships, unexpected privilege use, abnormal authentication patterns, or suspicious network behavior. Static asset naming and password expiration serve administrative or access-management purposes, while hardware replacement is a maintenance activity. Behavioral hunting becomes more effective when multiple telemetry sources can be correlated to establish context around unusual activity.
Question 29.
Which framework organizes adversary behavior into tactics and techniques?
- MITRE ATT&CK
- ISO 27001
- COBIT
- ITIL
Correct Answer: 1
Explanation:
MITRE ATT&CK organizes documented adversary behavior into tactics, techniques, and sub-techniques. Security teams use the framework to describe how attackers achieve objectives and to map observed activity to known behaviors. It can support threat hunting, detection engineering, incident investigation, and defensive gap analysis. ISO 27001 provides an information-security management framework, COBIT focuses on governance and management of enterprise IT, and ITIL addresses service management practices. ATT&CK is specifically valuable to threat hunters because it provides a common vocabulary for discussing adversary behaviors.
Question 30.
What does indicator pivoting allow an analyst to discover?
- Hardware specifications
- Related evidence
- Employee schedules
- Software pricing
Correct Answer: 2
Explanation:
Indicator pivoting involves starting with one known artifact and searching for related evidence across available data sources. For example, a suspicious domain may be used to identify communicating hosts, associated processes, historical DNS activity, or related network connections. This technique helps expand an investigation from a single observation into a broader set of potentially connected events. Hardware specifications, employee schedules, and software pricing do not normally provide the relationships required for cybersecurity indicator pivoting. Effective pivots depend on reliable identifiers and sufficiently connected telemetry.
Question 31.
Which activity helps determine whether an alert represents benign behavior?
- Contextual validation
- Cable replacement
- Disk formatting
- Account deletion
Correct Answer: 1
Explanation:
Contextual validation involves examining additional information around an alert to determine whether the activity is legitimate or suspicious. Analysts may consider the affected user, endpoint, process, time, location, network destination, historical behavior, and organizational context. This prevents security teams from treating every unusual event as malicious. Cable replacement and disk formatting are maintenance operations, while account deletion is an administrative action that may itself require investigation. Contextual validation is particularly important when automated detections generate alerts that can also be triggered by legitimate administrative or application behavior.
Question 32.
Which intelligence type focuses on specific adversary techniques and procedures?
- Strategic intelligence
- Tactical intelligence
- Financial intelligence
- Executive reporting
Correct Answer: 2
Explanation:
Tactical threat intelligence focuses on adversary tactics, techniques, and procedures and is particularly useful to defenders who build detections or conduct threat hunting. It can help security teams understand how attackers operate and what behaviors may appear in telemetry. Strategic intelligence is generally aimed at broader organizational and leadership-level concerns, while financial intelligence and executive reporting are not classifications of tactical cyber threat intelligence. Tactical information can be translated into hunting hypotheses, detection logic, investigation procedures, and defensive controls when appropriately matched to the organization’s environment.
Question 33.
Which endpoint artifact can show parent-child process relationships?
- Process telemetry
- DHCP database
- Asset register
- Printer queue
Correct Answer: 1
Explanation:
Process telemetry can show relationships between parent and child processes, providing important context for endpoint investigations. For example, a document application launching a scripting interpreter may deserve investigation depending on the circumstances. Parent-child relationships can reveal unusual execution chains that are difficult to identify by examining individual processes in isolation. DHCP databases provide address-assignment information, asset registers track equipment, and printer queues manage print jobs. Hunters should combine process relationships with command-line arguments, user context, file paths, timestamps, and network activity before determining whether a process chain is suspicious.
Question 34.
Which method can help prioritize threat hunting hypotheses?
- Random selection
- Threat intelligence
- Monitor size
- Cable color
Correct Answer: 2
Explanation:
Threat intelligence can help prioritize hunting hypotheses by identifying relevant adversary behaviors, campaigns, techniques, infrastructure, and indicators. Analysts can compare intelligence against their organization’s technologies, assets, exposure, and existing telemetry to determine which hypotheses deserve investigation. Random selection lacks a defined analytical basis, while monitor size and cable color have no meaningful role in threat-hunting prioritization. Intelligence should still be evaluated for relevance, reliability, freshness, and applicability because not every reported threat is equally relevant to every environment.
Question 35.
Which technique can reveal abnormal data transfers from an endpoint?
- Network traffic analysis
- Screen cleaning
- BIOS flashing
- Keyboard replacement
Correct Answer: 1
Explanation:
Network traffic analysis can help identify unusual data transfers by examining communication volumes, destinations, protocols, timing, and source systems. A sudden transfer of large amounts of information to an unfamiliar external destination may warrant investigation, particularly when it occurs alongside suspicious process or authentication activity. Large transfers can also be legitimate, such as backups or software distribution, so analysts must consider context before determining that exfiltration occurred. Screen cleaning, BIOS flashing, and keyboard replacement are unrelated maintenance activities and do not provide meaningful network-transfer visibility.
Question 36.
What is the purpose of threat hunting maturity improvements?
- Reduce investigative capability
- Improve hunting effectiveness
- Remove useful telemetry
- Increase unresolved alerts
Correct Answer: 2
Explanation:
Threat hunting maturity improvements aim to make hunting activities more consistent, measurable, repeatable, and effective. Organizations can improve maturity by expanding telemetry coverage, developing structured hypotheses, documenting findings, automating repetitive analysis, integrating threat intelligence, and measuring outcomes. The objective is not simply to increase the number of investigations but to improve the quality and usefulness of hunting operations. Removing telemetry or increasing unresolved alerts would generally make investigations harder. Mature programs also use lessons from completed hunts to improve detection content and identify gaps in visibility or defensive coverage.
Question 37.
Which network behavior may suggest automated scanning?
- Sequential port connections
- Normal web browsing
- Scheduled backups
- Routine DNS caching
Correct Answer: 1
Explanation:
Sequential or unusually broad connection attempts across many ports or hosts can be a potential indicator of automated scanning. Attackers and security tools may scan networks to identify accessible services, so context is important when interpreting this behavior. Analysts can examine the source system, destination range, connection frequency, ports targeted, and whether successful connections followed the scanning activity. Normal browsing, scheduled backups, and DNS caching can generate substantial network activity but do not inherently represent port scanning. Correlating flow records with endpoint telemetry can help determine the purpose of suspicious connection patterns.
Question 38.
Which activity helps identify security gaps after a hunt?
- Detection gap analysis
- Screen replacement
- Printer calibration
- Cable labeling
Correct Answer: 1
Explanation:
Detection gap analysis examines whether existing security controls and monitoring mechanisms were capable of identifying the behavior discovered during a hunt. If a malicious technique was present but generated no useful alert or telemetry, the organization may have a detection or visibility gap. Analysts can then develop new detection logic, improve logging, deploy additional sensors, or adjust existing controls. Screen replacement, printer calibration, and cable labeling are unrelated operational activities. Hunt findings can therefore provide practical feedback for strengthening future detection and monitoring capabilities.
Question 39.
Which characteristic makes an indicator more useful for hunting?
- Strong contextual relevance
- Unknown ownership
- Missing timestamps
- Unverified origin
Correct Answer: 1
Explanation:
Strong contextual relevance makes an indicator more useful because it connects the artifact to the environment, threat activity, affected systems, or investigative scenario. For example, an external domain associated with a known campaign and observed communicating with a specific endpoint may provide more useful hunting value than an isolated, unverified domain. Unknown ownership, missing timestamps, and unverified origins reduce an analyst’s ability to interpret an indicator confidently. Context should still be validated because threat intelligence can become outdated or contain incomplete information.
Question 40.
Which result can indicate that a hunting hypothesis was disproved?
- Evidence supports the assumption
- No relevant supporting evidence
- Confirmed malicious execution
- Correlated attack activity
Correct Answer: 2
Explanation:
A hunting hypothesis can be disproved when investigation fails to find relevant supporting evidence and available data contradicts the expected behavior. This does not necessarily mean the threat is impossible; it may indicate that the hypothesis was incorrect, the activity occurred outside the searched period, or required telemetry was unavailable. Confirmed malicious execution and correlated attack activity would instead support a hypothesis. Hunters should document both positive and negative results because disproved hypotheses can prevent duplicated work and help refine future investigations.