The correct answer is the one describing transactions beginning with 'allow' and ending with 'deny' for src_ip 10.0.0.1, with a maximum duration of 5 minutes. This is correct because the transaction command groups events by src_ip, then uses startswith=allow to define the first event in a transaction and endswith=deny to define the last, while maxspan=5m ensures the entire transaction must complete within a five-minute window. On the Splunk SPLK-1003 exam, this question tests your ability to read a transaction search and interpret how startswith, endswith, and maxspan work together to filter event sequences—a common trap is confusing which condition starts versus ends the transaction, or misreading maxspan as a total event count limit. Remember the memory tip: "startswith kicks it off, endswith calls it done, and maxspan keeps the whole party under five minutes."
SPLK-1003 Transactions and Event Correlation Practice Question
This SPLK-1003 practice question tests your understanding of transactions and event correlation. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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. A security analyst runs the above search. Which of the following best describes the result?
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
✓
Transactions beginning with 'allow' and ending with 'deny' for src_ip 10.0.0.1, with a maximum duration of 5 minutes
Option C is correct because the transaction groups events by src_ip, starts with 'allow' and ends with 'deny', and limits to 5-minute windows. Events within that window that fit the pattern will form transactions. Option A is incorrect because it says 'all events' but the start/end conditions filter. Option B is incorrect because it reverses start/end. Option D is incorrect because maxspan is 5 minutes, not 1 hour.
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.
✗
Transactions for all source IPs, but only showing src_ip 10.0.0.1 in the table
Why it's wrong here
The index filter and src_ip transaction field limit to that IP; maxspan is 5 min, not 1 hour.
✗
Transactions of all firewall events for src_ip 10.0.0.1, each lasting up to 5 minutes
Why it's wrong here
Not all events; only those matching start and end conditions.
✗
Transactions of src_ip 10.0.0.1 that start with deny and end with allow
Why it's wrong here
The startswith and endswith are reversed.
✓
Transactions beginning with 'allow' and ending with 'deny' for src_ip 10.0.0.1, with a maximum duration of 5 minutes
Why this is correct
Correct interpretation of the transaction parameters.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
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.
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 SPLK-1003 NAT questions on configuration and troubleshooting.
Transactions and Event Correlation — This question tests Transactions and Event Correlation — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Transactions beginning with 'allow' and ending with 'deny' for src_ip 10.0.0.1, with a maximum duration of 5 minutes — Option C is correct because the transaction groups events by src_ip, starts with 'allow' and ends with 'deny', and limits to 5-minute windows. Events within that window that fit the pattern will form transactions. Option A is incorrect because it says 'all events' but the start/end conditions filter. Option B is incorrect because it reverses start/end. Option D is incorrect because maxspan is 5 minutes, not 1 hour.
What should I do if I get this SPLK-1003 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 SPLK-1003 NAT questions on configuration and troubleshooting.
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?
Static NAT maps one inside address to one outside address.
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