The correct answer is an SQL injection attempt. This pattern of a rapid spike in database connections over a very short time is a classic signature of automated SQL injection detection via network traffic patterns, where a tool rapidly sends a series of malicious queries to probe for and exploit database vulnerabilities. In contrast, normal application traffic would show a steadier, more predictable connection rate, while a server crash would result in zero connections. On the Certified Information Security Manager CISM exam, this question tests your ability to distinguish between anomalous network behavior and baseline application load, a key skill in the domain of security operations and monitoring. A common trap is confusing a sudden surge with a denial-of-service attack, but the key differentiator here is the targeted database interaction rather than a flood of generic traffic. Memory tip: think “Spike + SQL = SQLi,” as automated injection tools create a telltale burst of connections that a steady-state application never would.
CISM Incident Management Practice Question
This CISM practice question tests your understanding of incident management. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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.
Refer to the exhibit.
The exhibit shows network traffic from a server to a database. What does this pattern MOST likely indicate?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
SQL injection attempt
A rapid increase in connections to a database in a short time is typical of an automated SQL injection tool testing and exploiting vulnerabilities. Normal application load would be steadier, and a crash would show no connections. Option C is correct.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Query optimization issue
Why it's wrong here
Query optimization issues might cause slow queries but not a rapid increase in connection count.
✓
SQL injection attempt
Why this is correct
SQL injection tools often create many connections to execute queries, matching the pattern.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
✗
Normal application load
Why it's wrong here
Normal load would show gradual changes, not such a rapid spike in connections.
✗
Database server crash
Why it's wrong here
A crash would result in no connections, not increasing connections.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Trap categories for this question
Command / output trap
Normal load would show gradual changes, not such a rapid spike in connections.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISM NAT questions on configuration and troubleshooting.
Incident Management — This question tests Incident Management — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: SQL injection attempt — A rapid increase in connections to a database in a short time is typical of an automated SQL injection tool testing and exploiting vulnerabilities. Normal application load would be steadier, and a crash would show no connections. Option C is correct.
What should I do if I get this CISM question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related CISM NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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