CCNA Transactions and Event Correlation Questions

A transaction is created using the command: 'index=web status=200 OR status=404 | transaction sessionid'. The user wants to include transactions only if they contain both a 200 and a 404 status. Which additional step achieves this?

Refer to the exhibit. A security analyst runs the above search. Which of the following best describes the result?

A search using the transaction command is producing many partial transactions that are closed due to maxpause, but these transactions are often relevant and should not be discarded. Which option should be added to the transaction command to keep these partial results?

Which transaction option should be used to ensure that a transaction does not exceed a total duration of 10 minutes?

A transaction search is processing too many fields. Which command should be used immediately before the transaction command to reduce memory usage?

Refer to the exhibit. The search returns only transactions that ended with successful login. The administrator wants to see all failed login attempts that did not lead to a success. What is the most efficient approach?

A search uses `transaction session_id maxspan=30m` to group events. The search returns 5000 transaction events. The analyst needs to filter out any transaction that does not contain an event with status=failure. Which post-transaction command should be used?

Which two techniques should be used to optimize a transaction search that is slow due to a high volume of events? (Choose two.)

A transaction that groups events by field 'session_id' sometimes produces transactions that contain events from multiple distinct sessions due to session_id reuse over time. What is the best way to ensure transactions are correctly separated?

A security team needs to correlate failed login attempts across multiple web servers to identify brute force attacks. Each server logs authentication failures with timestamps and source IPs. The team wants to create a transaction that groups failed attempts within 5 minutes from the same IP, but only if there are at least 3 failures. Which approach correctly implements this requirement?

A search includes 'transaction userid maxspan=1h maxopentxn=1000'. What is the purpose of maxopentxn?

An administrator runs a transaction command that groups events by a customer ID but notices that some transactions are missing expected events. The log shows that the events are present and within the maxpause. What could be the reason?

A Splunk Power User needs to find the average duration of user sessions. The sessions are defined by a 'user_id' field and have a max inactivity of 15 minutes. Which search correctly calculates this?

A security analyst wants to group all authentication events (e.g., login, logout, failure) that occur within a 10-minute window for each user. The events are from multiple sources and share a common 'user' field. Which transaction command is most appropriate?

An analyst needs to correlate events from two different data sources (web logs and database logs) based on a common session ID. The events occur within a short time window of 5 seconds. Which command is most appropriate?

Which two statements about the transaction command are correct? (Choose two.)

A large e-commerce company is using Splunk to monitor user sessions across multiple microservices. Each service logs events with a common 'session_id' field. The security team wants to identify sessions where a user performed a 'password_change' action followed by a 'login' from a different IP address within 5 minutes, indicating possible account takeover. The current search uses `transaction session_id startswith=action=login endswith=action=password_change maxspan=10m`. However, the search returns very few results, and the team suspects it is missing many attacks. The logs show that sometimes 'password_change' occurs before 'login' (e.g., password reset then login) and the IP changes are observed across multiple events. The team needs to capture both orderings. Which approach should they take?

Refer to the exhibit. An analyst sees that the transaction for sessionid 'abc123' has duration 120 seconds and 4 events. The events within this transaction occur at 10:00:00, 10:01:00, 10:02:00, and 10:03:00. Why did the transaction close?

A security analyst wants to correlate login events from multiple sources to identify a single user session. The data includes source IP, username, and timestamp. Which Splunk command is most appropriate to group these events into a single transaction based on a common field and a maximum time window?

A security operations center (SOC) uses Splunk to correlate alerts from multiple sources. They have a rule that triggers a transaction when an IDS alert is followed within 5 minutes by a firewall deny event from the same source IP. The search is: `index=security sourcetype=ids OR sourcetype=firewall | transaction src_ip startswith="ids" endswith="firewall" maxspan=5m`. This works well when the deny event occurs after the alert. However, analysts are missing correlations where the firewall deny event occurs slightly before the IDS alert (up to 1 minute before). To capture these out-of-order events without significantly increasing resource usage, what should the analyst do?

A Splunk administrator at a company with 500 employees needs to correlate VPN login events with subsequent network access logs to track user sessions. The VPN logs contain fields: user, src_ip, timestamp, event_type (login or logout). The network logs contain fields: user, dst_ip, timestamp, action (allow or deny). Both logs are indexed daily. The administrator wants to create a search that groups each VPN login with all network access events from that user within the next 8 hours. However, the current search using `transaction user startswith="login" endswith="logout" maxspan=8h` is returning many incomplete transactions where the logout event is missing. What is the most efficient way to improve the correlation without missing sessions?

A Splunk user wants to group web server logs into transactions representing a single user visit, where a visit starts with a 'GET' request and ends with a 'POST' request. Which transaction command syntax correctly implements this logic?

Refer to the exhibit. The search returns no transactions even though there are login and logout events in the index. What is the most likely cause?

A financial services company uses Splunk to detect fraudulent transactions. Each transaction event has fields: `user_id`, `amount`, `merchant`, `timestamp`. The fraud detection team wants to identify users who make multiple small transactions (under $50) totaling over $200 within a 1-hour window, which may indicate testing stolen credit cards. They write the following search: `index=transactions sourcetype=payment amount<50 | transaction user_id maxspan=1h | where sum(amount) > 200` This search runs but returns no results, even though manual inspection shows users with such patterns. What is the primary reason the search fails?

A security team wants to detect a multi-step attack pattern: a user logs in from a new IP address, then within 10 minutes performs a privilege escalation, and finally accesses a sensitive file. They have events with fields: user, ip, action, and timestamp. Which SPL transaction statement should they use to group these three events into one transaction, ensuring all three actions occur in order?

A Splunk admin wants to group events that share a common `session_id` field. Events arrive out of order. Which transaction field will automatically sort events correctly?

An analyst needs to correlate events from a web server log and an application log to identify failed login attempts followed within 5 seconds by an error event. The events share a common session ID field. Which approach should the analyst use?

Refer to the exhibit. What is the purpose of the 'maxpause=5m' parameter in this search?

Refer to the exhibit. The search aims to detect brute-force attacks where there are at least 2 failed logins followed by a successful login from the same source IP within 5 minutes. However, the search returns no results even though such attacks exist. What is the most likely error in the search logic?

A security analyst wants to group all events from a single web session into one transaction. The session is identified by a 'sessionId' field, and events are generated over a period that can last up to 30 minutes. The analyst also wants to close the transaction if there is no activity for more than 10 minutes. Which transaction parameters should be used?

Which TWO statements correctly describe the behavior of the transaction command in Splunk?

A Splunk user wants to correlate events from different sourcetypes (web_access, app_log) that belong to the same user session identified by session_id. The events should be grouped only if they occur within 30 minutes of each other, and each transaction should contain at least one event from each sourcetype. Which SPL construct should they use?

A security team needs to group login events for the same user within a 5-minute window. Which transaction option should be used to limit the time between consecutive events?

Which TWO of the following are valid reasons to use transaction instead of stats for event correlation?

Refer to the exhibit. An analyst runs the above search to test transaction behavior. What is the likely result?

A large e-commerce site logs all user page views and purchases. Each event contains user_id, session_id, timestamp, and event_type (view or purchase). The marketing team wants to analyze the sequence of views that lead to a purchase. They use `transaction session_id startswith="view" endswith="purchase" maxspan=1h`. However, they find that some transactions are missing purchase events because the purchase occurs after 1 hour, or sometimes multiple purchases occur within the same session. To include all related events and correctly identify the sequence leading to each purchase, what is the best approach?

A search uses `transaction` with wildcard fields (e.g., `*id`), causing poor performance. What is the best practice to optimize this?

Order the steps to set up a data input for monitoring a log file in Splunk.

A search uses transaction to group login and logout events. What happens if a user has multiple logins before logging out?

Which TWO options can be used with the `transaction` command to control how many events are included in a single transaction?

Which TWO of the following are limitations of the transaction command in Splunk?

A large enterprise runs Splunk Enterprise with 500 servers forwarding Windows security logs. The security team wants to correlate failed logins (EventCode 4625) with subsequent successful logins (EventCode 4624) from the same source IP within a 5-minute window. They currently use the following search: index=windows sourcetype=WinEventLog:Security (EventCode=4625 OR EventCode=4624) | transaction src_ip maxpause=5m | search EventCode=4625 AND EventCode=4624. This search is extremely slow and often times out. Which approach would improve performance while maintaining the same correlation logic?

When using the transaction command to group events, which field is automatically added to the event to indicate the start time of the transaction?

A team wants to correlate events from different sourcetypes (web, db) on a common `sessionid`. They use `transaction sessionid` across both sourcetypes. The results show that some transactions are missing events. What is the most likely cause?

A large e-commerce company uses Splunk to analyze customer purchase funnels. Their environment includes 10 indexers and a search head cluster. They have a search that runs every 5 minutes to correlate events from web logs, order logs, and payment logs using the `transaction` command on a common `order_id` field. The search uses `transaction order_id maxevents=50 maxspan=30m`. Recently, users have reported that some orders are missing from the results, especially for high-volume periods. The team also notices that dashboard searches often timeout. They suspect the transaction command is the bottleneck. Upon examining the search, they see that the web logs alone generate hundreds of events per order. Which course of action would best address the missing orders and performance issues?

Refer to the exhibit. A Splunk user runs the search shown. The search returns results, but the user notices that some clientip values appear multiple times in the stats output, even though they should have been grouped into a single transaction. What is the most likely reason for this?

Which TWO of the following are valid ways to correlate events without using the transaction command?

An analyst runs `sourcetype=access_combined | transaction clientip` and notices many single-event transactions. Which option would help close transactions more accurately?

A Splunk administrator is correlating events from two sourcetypes using transaction with startswith and endswith. The transaction rarely matches events even though they exist. What is the most likely cause?

An analyst uses transaction to group web requests by session_id. Some transactions are unexpectedly large, containing hundreds of events. What parameter should be adjusted to limit the number of events per transaction?