This CS0-003 practice question tests your understanding of security operations. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. A key principle to apply: network flow data provides visibility into traffic volume and destinations.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Network flow records show one database server sending large encrypted outbound transfers to an unfamiliar autonomous system during off-hours. Which next step gives the BEST triage value? In the alert triage phase, Which action gives the analyst the clearest next triage step?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Correlate flow volume with database audit logs and the destination reputation
Option D is correct because correlating the flow volume with database audit logs allows the analyst to verify if the outbound transfers correspond to legitimate database queries or exports, while checking the destination reputation helps determine if the autonomous system is known for malicious activity. This combination provides the clearest triage value by directly linking the network anomaly to potential data exfiltration or a compromised database server, without prematurely disrupting operations or ignoring the encryption indicator.
Key principle: Network flow data provides visibility into traffic volume and destinations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Assume encryption means the transfer is safe
Why it's wrong here
Encrypted transport does not prove the destination or activity is legitimate.
✗
Delete historical flow records to reduce SIEM cost
Why it's wrong here
Historical telemetry is needed to establish baseline and scope.
✗
Disable all outbound internet access for the organisation
Why it's wrong here
A broad outage may be disproportionate before the activity is validated.
✓
Correlate flow volume with database audit logs and the destination reputation
Why this is correct
Flow data identifies suspicious transfer volume; database audit logs and destination context help determine whether sensitive data may have left.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Network flow data provides visibility into traffic volume and destinations.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume encryption (option A) guarantees safety, but Cisco tests the understanding that encryption can be used to conceal malicious activity, and the correct triage step is to correlate with other logs and threat intelligence rather than making assumptions based on encryption alone.
Detailed technical explanation
How to think about this question
Under the hood, NetFlow or IPFIX records provide metadata (source/destination IP, port, protocol, bytes) but not payload content; correlating with database audit logs (e.g., Oracle Fine-Grained Auditing or SQL Server Audit) can reveal if the outbound traffic matches SELECT or EXPORT operations on sensitive tables. Destination reputation services (e.g., AlienVault OTX, VirusTotal) use ASN and IP history to flag known C2 servers or data drop zones, helping distinguish between a legitimate cloud backup and an exfiltration attempt.
KKey Concepts to Remember
Network flow data provides visibility into traffic volume and destinations.
Database audit logs track access, queries, and administrative actions.
Destination reputation checks provide external threat intelligence.
Correlation of multiple data sources is crucial for effective incident triage.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Network flow data provides visibility into traffic volume and destinations.
Real-world example
How this comes up in practice
A developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CS0-003 question in full detail.
Review network flow data provides visibility into traffic volume and destinations., then practise related CS0-003 questions on the same topic to reinforce the concept.
Security Operations — This question tests Security Operations — Network flow data provides visibility into traffic volume and destinations..
What is the correct answer to this question?
The correct answer is: Correlate flow volume with database audit logs and the destination reputation — Option D is correct because correlating the flow volume with database audit logs allows the analyst to verify if the outbound transfers correspond to legitimate database queries or exports, while checking the destination reputation helps determine if the autonomous system is known for malicious activity. This combination provides the clearest triage value by directly linking the network anomaly to potential data exfiltration or a compromised database server, without prematurely disrupting operations or ignoring the encryption indicator.
What should I do if I get this CS0-003 question wrong?
Review network flow data provides visibility into traffic volume and destinations., then practise related CS0-003 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Network flow data provides visibility into traffic volume and destinations.
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