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What is automatic service detection in Dynatrace? correct answers The process where Dynatrace
automatically detects deployed applications and microservices based on specific properties like
application identifier, URL, or server name. These detected attributes are marked with an asterisk
(✱) on the service overview page under Properties and tags.
In what circumstances would you need to create service detection rules? correct answers When
the quality of data available to Dynatrace is insufficient for high-precision service detection,
requiring tailored detection rules to better match your environment's needs.
How are detection rules evaluated in Dynatrace? correct answers Detection rules are evaluated
from top to bottom, and the first matching rule applies, so rule positioning in the list is critical.
What are the prerequisites for configuring rule-based service detection via the Settings API?
correct answers An access token with Read settings (settings.read) and Write settings
(settings.write) scopes.
What happens to original services when you define a new detection rule? correct answers
Depending on the configuration, original services might get less traffic or no traffic at all, with
new monitoring data redirected according to the rule configuration.
What are the minimum parameters required to identify a service when creating a detection rule?
correct answers At least one of the following must be turned on: Application identifier, URL
context root, or Server name.
What happens to historical data when you modify a service detection rule? correct answers
Historical data remains available only for the previous service, while all newly captured data is
associated with the new standalone service.
What happens if you delete a service detection rule? correct answers All individual services are
split and once again treated as standalone services.
How can you separate fully monitored web request services when context root is not supported?
correct answers By imposing a context root on a fully monitored web request, for example,
detecting a service based on specific URL path segments.
How can you merge application data into a single service when the incoming data is volatile?
correct answers By using service detection rules to merge services based on common attributes,
such as application IDs that start with the same prefix.
How can you separate services for "public network services" based on URL? correct answers By
creating rules that transform service IDs based on URL segments when the top-level domain
ends with specific wording.
,How can you create different services from the same domain? correct answers By instructing
Dynatrace to detect multiple services based on the detected hostname instead of just the domain
name (e.g., separating support.dynatrace.com and blog.dynatrace.com).
How can Dynatrace track performance of different IPs as separate service instances? correct
answers By setting up detection rules that retain information about multiple IPs in the detected
service, allowing tracking of different IPs as separate service instances.
How can you remedy web server naming issues where servers default to "localhost"? correct
answers By using the environment variable DT_LOCALTOVIRTUALHOSTNAME to define
virtual host names, ensuring multiple physical hosts report the same virtual host.
How can you define unique application names for technologies that don't provide them? correct
answers By defining an environment variable called DT_APPLICATIONID to provide a unique
name, or for Java applications, using the system property dynatrace.application.id.
How do you handle rotating or random ports in detection rules? correct answers By setting the
environment variable DT_IGNOREDYNAMICPORT=true, which removes the port from
detection and replaces it with *.
What are the four types of request rules you can configure in service detection? correct answers
Full web request rules, Full web service rules, External web request rules, and External web
service rules.
What is the difference between a "full" and an "external" (opaque) request in Dynatrace? correct
answers A full request provides complete monitoring data from the client through all services to
the database, while an external (opaque) request refers to calls to unmonitored third-party
services or hosts.
What are process groups in Dynatrace? correct answers Groups of related processes that
Dynatrace identifies as belonging together based on a default set of detection rules. Process
groups are key elements in Dynatrace architecture.
Where can you modify the default process-group detection logic in Dynatrace? correct answers
In Settings > Processes and containers > Process group detection section, which includes Built-in
detection rules, Simple detection rules, Advanced detection rules, and Declarative process
grouping pages.
What happens when you implement process group detection settings or rules? correct answers
Process group detection settings and rules require a restart of your processes to affect how
processes are identified and grouped.
What is the difference between process group detection rules and process group naming rules?
correct answers Process group detection rules affect the composition of process groups (which
processes are grouped together), while process group naming rules only change how a process
group is named.
, What is the primary purpose of simple process group detection rules? correct answers To adapt
the default process-group detection logic for deep monitored processes via Java system
properties or environment variables.
What is a limitation of simple process-group detection rules? correct answers Simple detection
rules can only split a process group into multiple parts. They're useful when you have different
deployments into the same process group.
What are the two property source options for simple detection rules? correct answers Java system
property and Environment variable.
What must be true about the Java system property for it to be detected by OneAgent? correct
answers The Java system property needs to be part of the Java command line to be detected by
OneAgent.
Which processes can be affected by environment variable detection rules? correct answers Both
Java and non-Java processes like NGINX, Apache HTTPserver, FPM/PHP, Node.js, IIS,
and .NET.
How do advanced process group detection rules differ from simple rules? correct answers
Advanced rules allow you to create a process group by merging processes from different groups,
while simple rules can only split process groups.
What properties does OneAgent use for advanced detection rules? correct answers Properties that
are automatically detected by OneAgent during the startup of a process.
In what scenarios should you use standalone rules? correct answers When you have a process
group with multiple processes that each perform the same function for different customers with
unique customer-specific configurations.
When should you disable the standalone rules option? correct answers When you want to
differentiate between separate entities (e.g., production vs. testing) within the same environment,
but still want to use the default detection by Dynatrace, enhanced with your own knowledge of
the deployment setup.
What does the DT_CLUSTER_ID environment variable do? correct answers It groups all
processes that have the same value for this variable into the same process group, regardless of
other properties.
What is the purpose of the DT_NODE_ID environment variable? correct answers It identifies
nodes within a process cluster that run on the same host, telling Dynatrace which processes
should be taken as separate process group instances.
What happens if you set DT_CLUSTER_ID system-wide? correct answers All processes may be
grouped into a single process group for monitoring, which is undesirable and unsupported.
What is automatic service detection in Dynatrace? correct answers The process where Dynatrace
automatically detects deployed applications and microservices based on specific properties like
application identifier, URL, or server name. These detected attributes are marked with an asterisk
(✱) on the service overview page under Properties and tags.
In what circumstances would you need to create service detection rules? correct answers When
the quality of data available to Dynatrace is insufficient for high-precision service detection,
requiring tailored detection rules to better match your environment's needs.
How are detection rules evaluated in Dynatrace? correct answers Detection rules are evaluated
from top to bottom, and the first matching rule applies, so rule positioning in the list is critical.
What are the prerequisites for configuring rule-based service detection via the Settings API?
correct answers An access token with Read settings (settings.read) and Write settings
(settings.write) scopes.
What happens to original services when you define a new detection rule? correct answers
Depending on the configuration, original services might get less traffic or no traffic at all, with
new monitoring data redirected according to the rule configuration.
What are the minimum parameters required to identify a service when creating a detection rule?
correct answers At least one of the following must be turned on: Application identifier, URL
context root, or Server name.
What happens to historical data when you modify a service detection rule? correct answers
Historical data remains available only for the previous service, while all newly captured data is
associated with the new standalone service.
What happens if you delete a service detection rule? correct answers All individual services are
split and once again treated as standalone services.
How can you separate fully monitored web request services when context root is not supported?
correct answers By imposing a context root on a fully monitored web request, for example,
detecting a service based on specific URL path segments.
How can you merge application data into a single service when the incoming data is volatile?
correct answers By using service detection rules to merge services based on common attributes,
such as application IDs that start with the same prefix.
How can you separate services for "public network services" based on URL? correct answers By
creating rules that transform service IDs based on URL segments when the top-level domain
ends with specific wording.
,How can you create different services from the same domain? correct answers By instructing
Dynatrace to detect multiple services based on the detected hostname instead of just the domain
name (e.g., separating support.dynatrace.com and blog.dynatrace.com).
How can Dynatrace track performance of different IPs as separate service instances? correct
answers By setting up detection rules that retain information about multiple IPs in the detected
service, allowing tracking of different IPs as separate service instances.
How can you remedy web server naming issues where servers default to "localhost"? correct
answers By using the environment variable DT_LOCALTOVIRTUALHOSTNAME to define
virtual host names, ensuring multiple physical hosts report the same virtual host.
How can you define unique application names for technologies that don't provide them? correct
answers By defining an environment variable called DT_APPLICATIONID to provide a unique
name, or for Java applications, using the system property dynatrace.application.id.
How do you handle rotating or random ports in detection rules? correct answers By setting the
environment variable DT_IGNOREDYNAMICPORT=true, which removes the port from
detection and replaces it with *.
What are the four types of request rules you can configure in service detection? correct answers
Full web request rules, Full web service rules, External web request rules, and External web
service rules.
What is the difference between a "full" and an "external" (opaque) request in Dynatrace? correct
answers A full request provides complete monitoring data from the client through all services to
the database, while an external (opaque) request refers to calls to unmonitored third-party
services or hosts.
What are process groups in Dynatrace? correct answers Groups of related processes that
Dynatrace identifies as belonging together based on a default set of detection rules. Process
groups are key elements in Dynatrace architecture.
Where can you modify the default process-group detection logic in Dynatrace? correct answers
In Settings > Processes and containers > Process group detection section, which includes Built-in
detection rules, Simple detection rules, Advanced detection rules, and Declarative process
grouping pages.
What happens when you implement process group detection settings or rules? correct answers
Process group detection settings and rules require a restart of your processes to affect how
processes are identified and grouped.
What is the difference between process group detection rules and process group naming rules?
correct answers Process group detection rules affect the composition of process groups (which
processes are grouped together), while process group naming rules only change how a process
group is named.
, What is the primary purpose of simple process group detection rules? correct answers To adapt
the default process-group detection logic for deep monitored processes via Java system
properties or environment variables.
What is a limitation of simple process-group detection rules? correct answers Simple detection
rules can only split a process group into multiple parts. They're useful when you have different
deployments into the same process group.
What are the two property source options for simple detection rules? correct answers Java system
property and Environment variable.
What must be true about the Java system property for it to be detected by OneAgent? correct
answers The Java system property needs to be part of the Java command line to be detected by
OneAgent.
Which processes can be affected by environment variable detection rules? correct answers Both
Java and non-Java processes like NGINX, Apache HTTPserver, FPM/PHP, Node.js, IIS,
and .NET.
How do advanced process group detection rules differ from simple rules? correct answers
Advanced rules allow you to create a process group by merging processes from different groups,
while simple rules can only split process groups.
What properties does OneAgent use for advanced detection rules? correct answers Properties that
are automatically detected by OneAgent during the startup of a process.
In what scenarios should you use standalone rules? correct answers When you have a process
group with multiple processes that each perform the same function for different customers with
unique customer-specific configurations.
When should you disable the standalone rules option? correct answers When you want to
differentiate between separate entities (e.g., production vs. testing) within the same environment,
but still want to use the default detection by Dynatrace, enhanced with your own knowledge of
the deployment setup.
What does the DT_CLUSTER_ID environment variable do? correct answers It groups all
processes that have the same value for this variable into the same process group, regardless of
other properties.
What is the purpose of the DT_NODE_ID environment variable? correct answers It identifies
nodes within a process cluster that run on the same host, telling Dynatrace which processes
should be taken as separate process group instances.
What happens if you set DT_CLUSTER_ID system-wide? correct answers All processes may be
grouped into a single process group for monitoring, which is undesirable and unsupported.
