SPLK-1002 Advanced Visualization and Lookups — 25 Questions

Question 1

Which statement best describes the search result?

Accepted Answer

It returns the count of events where the price is greater than 100, grouped by product_name.. The search uses a lookup to add product_name and price fields to the events, then filters for price > 100, and finally counts events by product_name. Option A is wrong because price is added by the lookup, so it is a field before the filter. Option B is wrong because the search counts events, not distinct product_ids. Option D is wrong because it does not mention grouping by product_name.

Answer

It returns an error because price is not a field before the lookup.

Answer

It returns the count of distinct product_ids that have a price > 100.

Answer

It returns the count of successful web events, but only for products with price > 100.

Question 2

A security analyst wants to create a visualization that shows the count of failed login attempts per user over the last 7 days. Which visualization type is most appropriate?

Accepted Answer

Bar chart with users on x-axis and count on y-axis. The question asks for a visualization showing the count of failed login attempts per user over the last 7 days. This requires a categorical comparison of total counts per user, not a trend over time. A bar chart with users on the x-axis and count on the y-axis directly displays the total attempts per user, making it the most appropriate choice. A line chart would show changes over time but typically aggregates across all users, not per user, unless multiple series are used, which is not specified. A pie chart shows proportions but not absolute counts, and a scatter plot is for correlations.

Answer

Pie chart showing proportion of attempts per user

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Line chart with time on x-axis and count on y-axis

Answer

Scatter chart showing correlation between user and time

Question 3

Which visualization type is best for comparing the proportion of each error type to the total errors over time?

Accepted Answer

Area chart. (Area chart) is correct because a stacked area chart effectively shows how each error type contributes to the total over time. Option A (Pie chart) is not time-based and only shows a single snapshot. Option B (Column chart) can display multiple categories over time but does not emphasize proportion as clearly as a stacked area chart. Option C (Line chart) focuses on trends of individual values rather than proportions of a whole.

Answer

Pie chart (with multiple series)

Answer

Column chart

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Line chart

Question 4

A security analyst creates a timechart of login failures by source IP. The chart shows expected spikes, but the top 5 IPs account for <10% of all failures. The analyst suspects a DDoS attack using spoofed IPs. Which visualization type would BEST highlight the distribution of failures across all IPs?

Accepted Answer

Treemap. A treemap is the best choice because it uses nested rectangles to represent the proportional contribution of each source IP to the total login failures, making it easy to visually identify the distribution across all IPs, even when no single IP dominates. Unlike other chart types, a treemap can efficiently display hundreds of IPs without cluttering the view, which is critical when the top 5 IPs account for less than 10% of failures, indicating a highly distributed attack pattern.

Answer

Pie chart

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Scatter plot

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Stacked column chart

Question 5

An engineer runs `| inputlookup asset_lookup.csv | table asset_id asset_name` and gets no results despite the file existing in $SPLUNK_HOME/etc/apps/search/lookups/. The lookup definition is correctly configured. What is the MOST likely cause?

Accepted Answer

The lookup definition name does not match the filename.. The `inputlookup` command references a lookup by its definition name, not the filename. Even if the file exists in the correct directory, the command will fail if the lookup definition name in the configuration does not match the filename. Option D is correct because the engineer likely used the filename in the command instead of the lookup definition name.

Answer

The engineer lacks permissions to read the lookup.

Answer

The lookup file is not in the correct directory.

Answer

The lookup file has a .csv extension but contains other data.

Question 6

A dashboard shows a single-value visualization of total sales. The underlying search uses `| stats sum(sales)`. The dashboard refreshes every 5 minutes, but the value only updates when the page is manually reloaded. Which setting is MOST likely missing?

Accepted Answer

The search is not scheduled or set to 'Auto' for the panel.. The single-value visualization's search must be scheduled or set to 'Auto' to automatically re-execute on dashboard refresh. Without this setting, the search runs once when the dashboard loads and caches the result, so even with a 5-minute auto-refresh interval, the displayed value remains stale until the page is manually reloaded.

Answer

The 'Token delay' is too high.

Answer

The time range picker is set to 'All time'.

Answer

The dashboard's 'Auto-refresh' interval is not set.

Question 7

A user creates a lookup definition for a CSV file containing user roles. The lookup is used in a search: `| lookup user_roles username OUTPUT role`. The search returns no additional field. The lookup file has columns: 'username', 'role', 'department'. What is the MOST likely issue?

Accepted Answer

The lookup definition uses a different filename than the CSV.. The lookup definition must reference the exact filename of the CSV file. If the definition points to a different filename than the actual CSV, the lookup will fail to load the file, and no fields will be returned. The search syntax is otherwise correct, so the issue lies in the mismatch between the definition and the file.

Answer

The username field in the search is not extracted.

Answer

The lookup file is not in the lookups directory.

Answer

The 'role' field is misspelled in the search.

Question 8

A dashboard uses a timechart to show CPU usage over 24 hours. The time range selector is set to 'Last 7 days'. The chart displays data only for the last 24 hours. Which visualization setting is MOST likely causing this?

Accepted Answer

The chart's 'Time range override' is set to 24 hours.. The 'Time range override' setting on a visualization explicitly overrides the dashboard's global time picker. When set to a fixed duration like 24 hours, the chart ignores the 'Last 7 days' selection and only displays data for that specific window. This explains why the chart shows only the last 24 hours despite the dashboard time range being 7 days.

Answer

The 'Max rows' is set to 24.

Answer

The 'Span' is set to 1 hour.

Answer

The data source only retains 24 hours.

Question 9

Which TWO are valid methods to join data from a CSV file in a Splunk search?

Accepted Answer

`| lookup myfile.csv`. The `| lookup` command can reference a CSV file defined as a lookup table in Splunk, allowing field-based enrichment of search results. This is a standard method for joining data from a CSV file within a search, provided the lookup is properly configured in transforms.conf and props.conf.

Answer

`| append myfile.csv`

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`| join myfile.csv`

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`| csvlookup myfile.csv`

Question 10

Which THREE are best practices for creating lookups in Splunk?

Accepted Answer

Use case-insensitive matching by default for user-facing lookups.. Using case-insensitive matching by default in user-facing lookups ensures that users do not need to worry about the case of the lookup key, which improves usability and reduces errors. In Splunk, this is configured via the `LOOKUP` command or in transforms.conf with the `case_sensitive_match = false` setting, which is the default behavior for most lookup types. This best practice avoids confusion when users query data with varying case formats, such as user names or hostnames.

Answer

Use wildcard matching in lookups for better performance.

Answer

Use a time-based lookup for static reference data.

Question 11

What is the MOST likely reason the search returns no results?

Accepted Answer

The `inputlookup` command expects the definition name, not the filename.. The `inputlookup` command in Splunk expects the lookup definition name as its argument, not the filename of the CSV file. If a user specifies the filename (e.g., `| inputlookup myfile.csv`) instead of the lookup definition name (e.g., `| inputlookup my_lookup`), Splunk will not find the lookup and returns no results. This is a common mistake because the command syntax requires the logical name defined in the lookup table configuration, not the physical file path.

Answer

The user does not have permission to read the lookup.

Answer

The lookup definition is not configured.

Answer

The CSV file has no header row.

Question 12

What is the MOST likely cause of this error?

Accepted Answer

The CSV file has a trailing space in the column header 'asset_type'.. The error is most likely caused by a trailing space in the CSV column header 'asset_type'. When `inputlookup` reads a CSV file, it treats column headers as literal strings; a trailing space makes the field name 'asset_type ' (with a space) instead of 'asset_type'. This mismatch causes the `where` command to fail because it references 'asset_type' without the space, leading to a field-not-found error.

Answer

The lookup is not configured to output all fields.

Answer

The lookup definition filename is incorrect.

Answer

The `where` command cannot be used after `inputlookup`.

Question 13

A security analyst needs to correlate IP addresses from firewall logs with a lookup table containing known malicious IPs. The lookup table is updated hourly and contains 10,000 entries. Which lookup type should be used to ensure the fastest search performance?

Accepted Answer

File-based CSV lookup. A file-based CSV lookup is the correct choice because it is stored entirely in memory on the search head, providing the fastest access for small to medium-sized static datasets (like 10,000 entries). Since the lookup is updated hourly, a CSV file can be reloaded efficiently without the overhead of network calls or database queries, making it ideal for high-speed correlation in security searches.

Answer

External lookup

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KV Store lookup

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Geospatial lookup

Question 14

A Splunk admin notices that a scheduled search using inputlookup is returning inconsistent results. The lookup file is stored on the search head and is updated via a script every 15 minutes. What is the most likely cause of the inconsistency?

Accepted Answer

The lookup file is cached and not automatically refreshed. The most likely cause is that the lookup file is cached by Splunk after the first read, and subsequent updates via the script do not automatically refresh the in-memory cache. By default, Splunk caches lookup files on the search head to improve performance, and changes to the file are not reflected until the cache expires or is manually cleared. This leads to inconsistent results when the scheduled search runs against a stale cached version.

Answer

The search head is not configured as a lookup server

Answer

The lookup file contains duplicate entries with different timestamps

Answer

The lookup file exceeds the maximum file size

Question 15

A dashboard developer wants to create a single-value visualization that shows the current server status from a lookup table. Which Splunk command should be used to retrieve the lookup data in a real-time context?

Accepted Answer

lookup. The `lookup` command retrieves field values from a lookup table and can be used in a real-time context to enrich events or display current status. Unlike `inputlookup`, which loads the entire lookup table as events, `lookup` works within the search pipeline, allowing it to match against live data and return the most recent lookup values for a single-value visualization.

Answer

inputlookup

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outputlookup

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geostats

Question 16

An organization uses Splunk to monitor network traffic. They have a CIDR lookup file that maps IP ranges to departments. When they run a search using `| lookup cidr_lookup IP OUTPUT department`, some IP addresses do not return a department even though the IPs are within the defined ranges. What is the most likely issue?

Accepted Answer

The lookup definition is not configured as a CIDR type. The most likely issue is that the lookup definition is not configured as a CIDR type. In Splunk, a standard lookup performs exact string matching, so it will not correctly match an IP address against a range defined in a CIDR notation (e.g., 10.0.0.0/24). To enable range-based matching, the lookup definition must be explicitly set to 'CIDR' type in transforms.conf, which allows Splunk to evaluate whether the IP falls within the specified subnet. Without this configuration, the lookup will fail to return a department for IPs that are within the defined ranges.

Answer

The IP addresses in the events are in lowercase

Answer

The lookup file is not in CSV format

Answer

The lookup file is compressed and not being read correctly

Question 17

A team wants to visualize sales data on a map. They have a lookup table containing city names and their latitude/longitude coordinates. Which visualization type should they use in Splunk to plot the sales amounts on a map?

Accepted Answer

Choropleth map. C is correct because a choropleth map uses geographic boundaries (e.g., countries, states, or cities) and shades or colors them based on a numeric value, such as sales amounts. With a lookup table providing latitude/longitude coordinates, Splunk can geocode the city names and overlay the sales data on a map using the `geostats` command, which is designed for choropleth visualizations.

Answer

Single value

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Gauge

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Scatter plot

Question 18

Which TWO of the following are valid methods to create a lookup table in Splunk?

Accepted Answer

Upload a CSV file through the Splunk Web interface. Splunk Web provides a direct interface to upload a CSV file and define it as a lookup table, automatically creating the lookup definition and file. Option D is correct because the `outputlookup` command in a search writes search results to a CSV file in the lookups directory, effectively creating a lookup table from dynamic data.

Answer

Use the eval command to create a lookup definition

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Use the stats command to aggregate data into a lookup

Answer

Use the inputlookup command in a search

Question 19

Which THREE of the following are best practices when using lookups in Splunk?

Accepted Answer

Use the lookup command instead of inputlookup when possible to reduce memory usage. Using the `lookup` command with the `local=t` argument (or when the lookup table is small enough to be loaded into memory) can reduce memory usage compared to `inputlookup`, which always loads the entire lookup file into memory. The `lookup` command can stream results and only loads necessary fields, making it more efficient for large datasets. This is a best practice to avoid out-of-memory errors in distributed search environments.

Answer

Store lookup tables in KV Store when the table has more than 1 million rows

Answer

Always use KV Store lookups for faster performance compared to CSV lookups

Question 20

The exhibit shows a search that reads a lookup file. Which of the following must be true for this search to work correctly?

Accepted Answer

The lookup must be defined in transforms.conf. For a lookup to work in a Splunk search, it must be defined in transforms.conf. This configuration file specifies the lookup type (e.g., file-based, KV-store, external), the filename, the field mapping, and other parameters. Without this definition, Splunk cannot resolve the lookup command or the lookup table reference in the search string, even if the file exists on disk.

Answer

The lookup file must be stored on the indexer

Answer

The file must be in the default lookup directory

Answer

The file server_status.csv must be in the $SPLUNK_HOME/etc/apps/search/lookups directory