Explanation: The building block of a data model. Each data model is composed of one or more data model datasets. Each dataset within a data model defines a subset of the dataset represented by the data model as a whole.
Data model datasets have a hierarchical relationship with each other, meaning they have parent-child relationships. Data models can contain multiple dataset hierarchies. There are three types of dataset hierarchies: event, search, and transaction.

Explanation: The transaction command groups events that share a common value in a specified field, such as JSESSIONID, and that occur within a specified time range. The search command filters the results to show only the events that match the given value of JSESSIONID. This search groups the events by JSESSIONID and then shows only the events that have the value SD462K101C2F267 for JSESSIONID2.

Explanation: The correct answer isB. Reusable pieces of search processing language. The explanation is as follows:
Search macros are knowledge objects that allow you to insert chunks of SPL into other searches12.
Search macros can be any part of a search, such as an eval statement or a search term, and do not need to be a complete command12.
You can also specify whether the macro field takes any arguments and define validation expressions for them12.
Search macros can help you make your SPL searches shorter and easier to understand3.
To use a search macro in a search string, you need to put a backtick character () before and after the macro name[^1^][1]. For example,mymacro`.

Explanation:
The correct command to show the total bytes for each unique combination of page and server is index=web | stats sum (bytes) BY page server. In Splunk, the stats command is used to calculate aggregate statistics over the dataset, such as count, sum, avg, etc. When using the BY clause, it groups the results by the specified fields. The correct syntax does not include commas or the word ‘AND’ between the field names. Instead, it simply lists the field names separated by spaces within the BY clause.
References: The usage of the stats command with the BY clause is confirmed by examples in the SplunkCommunity, where it’s explained that stats with a by foo bar will output one row for every unique combination of the by fields1.

Explanation: The Splunk Common Information Model (CIM) provides a methodology to normalize data from different sources and source types. The CIM defines a common set of fields and tags for different types of data, such as web, network, email, etc. This allows you to search and analyze data from different sources in a consistent way.

Explanation:
https://docs.splunk.com/Documentation/Splunk/8.0.2/Knowledge/SetupaGETworkflowactio n
Define a GET workflow action
Steps
Navigate to Settings > Fields > Workflow Actions.
Click New to open up a new workflow action form.
Define a Label for the action.
The Label field enables you to define the text that is displayed in either the field or event workflow menu. Labels can be static or include the value of relevant fields.
Determine whether the workflow action applies to specific fields or event types in your data.
Use Apply only to the following fields to identify one or more fields. When you identify fields, the workflow action only appears for events that have those fields, either in their event menu or field menus. If you leave it blank or enter an asterisk the action appears in menus for all fields.
Use Apply only to the following event types to identify one or more event types. If you identify an event type, the workflow action only appears in the event menus for events that belong to the event type.
For Show action in determine whether you want the action to appear in the Event menu, the Fields menus, or Both.
Set Action type to link.
In URI provide a URI for the location of the external resource that you want to send your field values to.
Similar to the Label setting, when you declare the value of a field, you use the name of the field enclosed by dollar signs.
Variables passed in GET actions via URIs are automatically URL encoded during transmission. This means you can include values that have spaces between words or punctuation characters.
Under Open link in, determine whether the workflow action displays in the current window or if it opens the link in a new window.
Set the Link method to get.
Click Save to save your workflow action definition.

Explanation: An event type in Splunk is defined by a search string that returns a specific set of events. The search string index=games sourcetype=score player=* score>9999 is valid because it filters events based on specific criteria directly within the main search command. This search will find all events in the games index with a sourcetype of score, where the player field exists, and the score is greater than 9999. This specificity and direct filtering make it suitable for defining an event type.

Explanation: The correct answer is C. _time.
The timechart command creates a time series chart with corresponding table of statistics, with time used as the X-axis1.You can specify a split-by field, where each distinct value of the split-by field becomes a series in the chart1.In this case, the split-by field is action, which means that the chart will have different lines for different actions, such as accept, reject, or fail2.The count function will calculate the number of events for each action in each time bin1.