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CCNA Data Analysis Questions

23 questions · Data Analysis topic · All types, answers revealed

1
MCQmedium

When utilizing the MITRE ATT&CK framework for data analysis, you identify that an actor is using 'DLL Side-Loading'. Which analytical technique should you apply to map this observation to the ATT&CK matrix?

A.Determine the Tactic and map the specific Technique ID.
B.Perform a Root Cause Analysis on the operating system.
C.Use the CVSS score of the DLL to prioritize the threat.
D.Calculate the frequency of the DLL calls to determine the actor intent.
AnswerA

Techniques describe how the adversary achieves the tactical goal.

Why this answer

Mapping involves identifying the Technique ID (T1574.002) and analyzing it within the context of the observed execution flow.

2
Multi-Selectmedium

Which TWO of the following are primary goals of conducting a threat modeling exercise on a new software application?

Select 2 answers
A.To provide a complete marketing brochure for the software.
B.To ensure the software meets the latest UI standards.
C.To define security requirements based on the risk profile.
D.To replace the need for automated unit testing.
E.To identify security flaws before code is deployed.
AnswersC, E

Requirement definition is a key output.

Why this answer

Goals include identifying risks early and defining security requirements to mitigate those risks.

3
MCQeasy

In threat modeling, what does the 'D' in DREAD risk assessment stand for?

A.Damage
B.Deployment
C.Detection
D.Data loss
AnswerA

Damage potential measures the severity of the impact.

Why this answer

DREAD stands for Damage, Reproducibility, Exploitability, Affected users, and Discoverability.

4
MCQmedium

You are utilizing the Analysis of Competing Hypotheses (ACH) matrix to evaluate a potential APT intrusion. After populating your hypotheses and evidence, you notice that your primary hypothesis has a high number of 'consistent' evidence ratings but several 'contradictory' data points. How should you proceed according to standard ACH methodology?

A.Consolidate the contradictory evidence into the supporting evidence category.
B.Discard the hypothesis immediately if any contradictory evidence exists.
C.Refine the evidence definitions to focus on the contradictory data points to assess if the hypothesis remains viable.
D.Increase the weight of supporting evidence to balance the matrix.
AnswerC

The core of ACH is to look for evidence that is most diagnostic in disproving a hypothesis.

Why this answer

ACH methodology dictates that you should focus on evidence that disproves hypotheses rather than supports them. Finding contradictory evidence is more diagnostic than finding supporting evidence.

5
MCQmedium

When performing statistical analysis on threat actor TTP frequency, you identify a set of outliers that do not fit the normal distribution of observed incident timestamps. Which statistical measure should you apply to determine if these outliers are significant enough to warrant a change in threat modeling?

A.Apply the Mode of the frequency dataset.
B.Calculate the Z-score of the timestamp distribution.
C.Perform a simple Median split.
D.Use the Range calculation.
AnswerB

Z-score identifies how far, in terms of standard deviations, a data point is from the mean.

Why this answer

Standard deviation or Z-score is used to determine how many standard deviations an observation is from the mean.

6
Multi-Selecthard

When analyzing network traffic for C2 communication, which THREE anomalies are common indicators of malicious activity?

Select 3 answers
A.Standard web browsing traffic during working hours.
B.High volume of legitimate internal server traffic.
C.Unexpected use of common protocols like DNS or HTTP/S for data exfiltration.
D.Periodic connections at fixed, high-frequency intervals.
E.Connections to known bad or newly registered domains.
AnswersC, D, E

Tunneling data through allowed protocols is common.

Why this answer

Beaconing patterns, unusual protocol usage, and irregular traffic volume are classic indicators.

7
MCQhard

You are performing a quantitative threat assessment on a high-value asset. You have a Threat Probability (P) of 0.2 and an Asset Impact (I) of $500,000. During the analysis, you find a new mitigation that reduces the probability by 50%. What is the new Annualized Loss Expectancy (ALE)?

A.$75,000
B.$100,000
C.$25,000
D.$50,000
AnswerD

0.1 (New Probability) * $500,000 (Impact) = $50,000.

Why this answer

ALE = SLE x ARO. Since ALE = Probability x Impact, original ALE = 0.2 x $500,000 = $100,000. New probability is 0.1. 0.1 x $500,000 = $50,000.

8
Multi-Selecthard

When performing quantitative analysis, which THREE of the following are necessary to calculate the Annualized Loss Expectancy (ALE)?

Select 3 answers
A.Single Loss Expectancy (SLE)
B.Annualized Rate of Occurrence (ARO)
C.Asset Value
D.Employee performance ratings.
E.Total cost of the organization's office space.
AnswersA, B, C

A component of the ALE formula.

Why this answer

ALE = SLE x ARO. SLE is calculated by Asset Value x Exposure Factor.

9
MCQeasy

In the context of data analysis for CTI, what is the primary purpose of normalizing disparate log data from multiple SIEM sources?

A.To reduce the storage space required for logs.
B.To increase the ingestion speed of the SIEM.
C.To ensure data compatibility for correlation and cross-source analysis.
D.To encrypt the logs for regulatory compliance.
AnswerC

Normalization maps different formats to a standard schema to enable meaningful analysis.

Why this answer

Normalization allows for the correlation of disparate data types into a single schema for accurate analysis.

10
Multi-Selectmedium

Which TWO methods are effective for visualizing threat actor TTPs within a CTI report?

Select 2 answers
A.A bibliography of all external sources.
B.A photograph of the threat actor.
C.A raw list of every log entry captured.
D.Flow diagrams illustrating the attack execution sequence.
E.Heat maps indicating TTP frequency or coverage.
AnswersD, E

Flows show how TTPs link together.

Why this answer

Mapping to frameworks (MITRE) and flow diagrams are the most effective ways to visualize TTPs.

11
MCQeasy

Which of the following is a primary benefit of using a 'Diamond Model' of intrusion analysis in your threat report?

A.It enables the visualization of relationships between the four core components of an intrusion.
B.It provides a vulnerability score for every asset.
C.It calculates the financial loss expectancy of a breach.
D.It replaces the need for SIEM log collection.
AnswerA

The Diamond Model maps the nexus of Adversary, Capability, Infrastructure, and Victim.

Why this answer

The Diamond Model links the Adversary, Capability, Infrastructure, and Victim, providing a holistic view of the event.

12
Multi-Selectmedium

You are reviewing your organization's threat modeling process. Which TWO of the following are considered essential components to include when documenting a threat model?

Select 2 answers
A.A list of identified threats categorized by type.
B.A detailed system architecture diagram.
C.The budget allocated for the security team.
D.The employee handbook for the IT department.
E.A list of all employees with admin access.
AnswersA, B

Categorizing threats is necessary for prioritization.

Why this answer

Documentation must define the scope of the system and the potential threats identified against that scope.

13
Multi-Selecthard

Which THREE data sources are typically analyzed when investigating an insider threat according to security behavior analytics?

Select 3 answers
A.Employee cafeteria transaction history.
B.Sensitive file access and data movement tracking.
C.System authentication and login/logout logs.
D.Email or messaging communication traffic metadata.
E.Public internet speed test results.
AnswersB, C, D

Detects unauthorized exfiltration.

Why this answer

Insider threats are detected via access logs, file activity, and network communication patterns.

14
MCQhard

In an ACH matrix, you have assigned values to the diagnostic evidence. You observe that a specific hypothesis has the lowest score. What does this indicate about the hypothesis?

A.The hypothesis is the most likely scenario.
B.The hypothesis is heavily supported by available data.
C.The hypothesis is the least likely to be correct given the current evidence set.
D.The hypothesis lacks enough evidence to be evaluated.
AnswerC

The hypothesis with the lowest score is typically the one most inconsistent with the available diagnostic evidence.

Why this answer

In ACH, lower scores in the matrix often indicate that the evidence strongly contradicts the hypothesis.

15
MCQeasy

What does a high 'CVSS' score indicate in the context of vulnerability data analysis?

A.The vulnerability is currently being exploited in the wild.
B.The vulnerability affects only Windows systems.
C.The vulnerability has a high severity rating based on its characteristics.
D.The vulnerability is already patched.
AnswerC

CVSS is a scoring system for vulnerability severity.

Why this answer

CVSS scores represent the severity of a vulnerability, with higher scores indicating higher severity.

16
MCQhard

During a threat modeling session, you are analyzing a system's 'Attack Surface'. You decide to apply the 'Least Privilege' principle. Which specific analysis technique are you practicing to reduce potential pathways?

A.Threat Vector Analysis
B.Risk Likelihood Assessment
C.Threat Actor Attribution
D.Attack Surface Reduction
AnswerD

Restricting permissions is a direct method of reducing the attack surface.

Why this answer

Attack Surface reduction through Least Privilege is a foundational technique in threat modeling aimed at minimizing the damage potential of a compromise.

17
MCQhard

While conducting a threat modeling exercise using STRIDE, you are analyzing a cloud-based API gateway. You notice that authentication tokens are being logged in plain text in the debugging logs. Which threat category in STRIDE is most specifically violated here?

A.Elevation of Privilege
B.Information Disclosure
C.Tampering
D.Repudiation
AnswerB

Logging sensitive credentials is a direct failure of confidentiality.

Why this answer

STRIDE stands for Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, and Elevation of Privilege. Plain text logging of tokens is a classic Information Disclosure vulnerability.

18
MCQhard

When conducting a 'Sensitivity Analysis' on your threat model, what are you attempting to determine?

A.Whether the threat actor has successfully exfiltrated data.
B.How changes in input variables affect the model's output.
C.The total number of threat actors targeting the organization.
D.The cryptographic strength of the data being protected.
AnswerB

Sensitivity analysis tests the robustness of the model by varying inputs.

Why this answer

Sensitivity analysis determines how changes in individual input variables (like threat probability or asset value) impact the overall final output or risk calculation.

19
MCQmedium

You are reviewing network traffic logs for potential C2 (Command and Control) beaconing. You decide to use a rolling average to smooth out the data. Why is this statistical technique useful in this scenario?

A.It helps filter out random 'noise' to highlight consistent temporal patterns.
B.It increases the absolute volume of the data collected.
C.It eliminates the need for further traffic inspection.
D.It encrypts the log data for safer analysis.
AnswerA

Smoothing functions are effective for identifying periodic signals within noisy telemetry.

Why this answer

Rolling averages help identify underlying trends in noisy data, making periodic beaconing patterns more visible.

20
Multi-Selecthard

When conducting an Analysis of Competing Hypotheses (ACH), which TWO actions help mitigate cognitive bias in your conclusions?

Select 2 answers
A.Systematically testing evidence against every hypothesis.
B.Assigning weights based on personal intuition.
C.Focusing only on the evidence that supports your primary theory.
D.Seeking evidence that disproves rather than confirms a hypothesis.
E.Limiting the number of hypotheses to one.
AnswersA, D

This ensures an objective comparison.

Why this answer

Mitigating bias involves systematically analyzing evidence for all hypotheses and consciously searching for disconfirming information.

21
MCQmedium

You are analyzing an adversary's 'Infrastructure'. You note that they rotate IP addresses every 24 hours. Which analysis technique is most effective for mapping this persistent behavior?

A.Time-series analysis of IP resolution logs.
B.Vulnerability scanning.
C.Qualitative SWOT analysis.
D.Static analysis of the malware binary.
AnswerA

This reveals the regularity of the infrastructure shifts.

Why this answer

Time-series analysis allows you to plot the rotation interval, revealing the temporal pattern of the infrastructure change.

22
Multi-Selectmedium

Which THREE factors should be considered when evaluating the reliability of threat intelligence data used in your analysis?

Select 3 answers
A.The size of the vendor's marketing department.
B.The timeliness of the intelligence.
C.The historical accuracy of the source.
D.Corroboration from other independent sources.
E.The format of the document (PDF vs CSV).
AnswersB, C, D

Old intelligence may no longer be relevant.

Why this answer

Data reliability depends on the source's history, the timeliness of the reporting, and the ability to verify the data.

23
MCQeasy

Which of the following is a common pitfall when performing 'Trend Analysis' on threat data?

A.Ignoring the total volume of data available.
B.Collecting too much data from different sources.
C.Using visual graphs to display the results.
D.Assuming historical trends will continue indefinitely without accounting for environmental shifts.
AnswerD

Linear extrapolation is often inaccurate due to external changes.

Why this answer

Extrapolating short-term patterns into long-term certainties is a common error in trend analysis.

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