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Dynatrace Study Guide Questions and
Answers 100% Pass
service quality reports (what can I learn from them?) ✔✔Each (term) summarizes the monitoring insights that dynatrace has compiled over the past week.
Each (term) offers an overview of your applications, services, infrastructure utilization, performance problems, and the impact of performance problems on your customers.
While Dynatrace itself is an ideal tool for day-to-day monitoring purposes, (term) gives you insights into hot spots in your environment and make it easy to share insights with others.
Where to view Service Quality Reports ✔✔Select Reports from the navigation menu and then click service quality from the left-hand menu.
(term) are chronologically arranged, with the most recent report appearing first. Select any report you're interested in to view further details.
What do Service Quality Reports address? ✔✔quality across the entire environment. Therefore, you need to have access to the entire environment to view. Analyzing and persisting the required aggregated data per Management zone isn't possible.
What does Service Quality Reports include? ✔✔Overall Dynatrace Score
Application Score
Services Score
Infrastructure Score
Overall Dynatrace Score ✔✔an average of the application, services, and infrastructure scores for your environment.
Application Score ✔✔based on application Apdex ratings. In brief, the Application score is the average of your application Apdex value and the percentage of user actions that are not affected by problems.
Services Score ✔✔represents the percentage of service calls that were successful and unaffected by problems.
Infrastructure Score ✔✔the percentage of host time during which no problems were encountered.
How often are Service Quality Reports generated? ✔✔each week on Sundays at midnight, so that when you start your work week each Monday morning, you'll find a new report ready for your review.
User-defined static thresholds ✔✔With customizable anomaly detection settings, you can overwrite the default static thresholds for infrastructure events.
Where to setup user defined static thresholds ✔✔Settings > Anomaly detection
Can you switch from automated baselining for application and service anomaly detection to static thresholds? ✔✔Yes. With static thresholds, the detected baseline thresholds are overwritten by your custom static thresholds for individual dimensions.
Automated baselining learns the typical refrence values for what? ✔✔Application and service response times, error rates, and load.
With regard to response times, Dynatrace collects references for? ✔✔The median (above which are the slowest 50% of all callers) and the 90th percentile (the slowest 10% of all callers)
When is a slowdown event raised? ✔✔When the typical response times for either the median or the 90th percentiles degrade.
What 4 dimensions does application baselining calculate references for? ✔✔User Action Geolocation Browser OS
What does service baselining calculate a reference for? ✔✔The Service Method dimension (a service's individual service methods - which represents the different SQL statements that are queried)
Within what time intervals are baselines evaluated? ✔✔within 5 minute and 15 minute sliding time intervals
When is the baseline cube detected/calculated? ✔✔two hours after your application is initially detected by Dynatrace OneAgent, so that it can analyze two hours of actual traffic to calculate preliminary reference values and identify where your traffic comes from.
At least 20% of the week. ✔✔How long do applications and services have to run before slowdown and error rate alerts are raised?
At least a full week. ✔✔How long do applications have to run before traffic spike drops and drops alerts are raised?
For the median and 90th percentile. ✔✔What are slowdown events detected for?
CPU Saturation (predefined static threshold) ✔✔Alert if CPU usage is higher than 95% in 3 of 5 one-minute intervals
A full week ✔✔How long does baselining require to learn daily and weekly patterns for traffic spikes and drops?
Data Retention ✔✔Dynatrace stores and retains different types of monitored data from your environments.
Services - distributed trace and code insights (data retention rates)*includes PurePath data ✔✔ 10 days for SaaS
Configurable for Managed
Storage is proprietary - shared with non-aggregated RUM data
Services - requests and request attributes (data retention rates) ✔✔35 days for SaaS
Configurable for Managed
Storage is Proprietary
RUM: Non-aggregated user action data (waterfall analysis, JavaScript errors, and crashes) ✔✔ 10 days for SaaS
Configurable for Managed
Storage is Shared with distributed trace and code service insights
RUM: Aggregated user action data (data retention rates) ✔✔35 days for SaaS
Configurable for Managed
35 days for both SaaS and Managed (data retention rates) ✔✔RUM: User sessions (data retention rates)
RUM: Session Replay (data retention rates) ✔✔35 days, depends on disk size, quota configurable per environment for BOTH SaaS and managed
35 days for SaaS
Configurable for Managed ✔✔Synthetic
Log Analytics ✔✔Configurable from 5-90 days. Specific files can be included/excluded (for BOTH SaaS and Managed)
Storage is file-based NFS storage;Storage requirements and costs vary by configuration
In SaaS deployments, a dedicated disk is used for Session Replay Data.
In Managed deployments, the Session Replay data storage directory is a dedicated file store that's used exclusively for Session Replay data.
Log Analytics ✔✔enables you to store all logs centrally within external storage. This makes log data available independent of log files themselves.
For SaaS customers, where are log files stored? ✔✔in Amazon Elastic File System in the zone where your Dynatrace environment resides.
You don't have to worry about storage performance, availability, or free space. Disk storage costs are included in your Log Analytics subscription.
Where are log files stored for Managed customers? ✔✔centrally on your Dynatrace Managed cluster, you must provide a common Network File System (NFS) mount point (path) that is identical and available from all cluster nodes.
With this approach, it's your responsibility to ensure appropriate levels of performance, availability, and free space on the mounted NFS volume.
Timeseries metrics (0-14 days) ✔✔1-minutes interval granularity available for dashboarding and API access
Timeseries metrics (14-28 days) ✔✔5-minute interval granularity available for dashboarding and API access
Timeseries metrics (28-400 days) ✔✔1-hour interval granularity available for dashboarding and API access
Timeseries metrics (400+ days) ✔✔1-day interval granularity available for dashboarding and API access
What is a PurePath? ✔✔a full end-to-end distributed trace.
In contrast to other tracing technologies, these are automaticall caputred by OneAgent.
In addition to serice-level traces and response times, they also provide deep code-level insights, which enable method-hotspot analysis, request attributes, request and database analysis, and detailed error analysis.
Also one of the core ingredients that enables the Dynatrace AI to perform automatic baselining and root cause anaylsis.
Provides the highest level of data granularity and fidelity on the market.
Global Privacy Settings ✔✔Environment-wide settings that Dynatrace offers that serve to ensure your compliance with the data-privacy regulations of your region.
Mask User Actions ✔✔This setting only affects RUM for web applications. With this setting enabled, no input data is captured. Instead, generic values are used as the basis for user action names.
The two global privacy settings ✔✔1. Mask the IP addresses of your end users
- Mask User Actions
Settings > Server-side service monitoring ✔✔Navigate here to find the available settings for detecting and naming web requests, database calls, and custom services. These (global) settings define rules that apply to all services detected in your system.
With global service-monitoring settings you can: ✔✔1. Define entry points for custom services that don't use standard protocols (Custom Service Detection)
- Create merged services in order to logically group separately detected services into the same service (merged service monitoring)
- Customize and enhance the default names of detected services (Service naming rules)
- Create advanced filters based on request attributes
Where do you define individual service settings? ✔✔Navigation Menu > Transactions & Services
Select the Service you want to configure > on the service overview page, click the browse button (...) > select edit
What do service-specific monitoring settings enable you to do? ✔✔1. Edit the default display names of services and add descriptions to improve tracking
- Fine tune HTTP error detection rules.
- Switch off unwanted alerts about response time degradations, failure rate increases, or changes in load behavior.
Why don't I see my applications or monitoring data? ✔✔Confirm that your application's web front- end process is monitored, go to Settings > Monitoring overview > processes and search for the process. All monitored processes are listed on this page.
If you don't see any of your applications or Real User Monitoring data in Dynatrace, the first thing you need to do is confirm that there is traffic in your web front-end processes (web server, Java, Node.js, etc). To do this, interact with one of your applications' pages to generate some traffic.
ruxitagentjs ✔✔DT JS tag for standard OneAgent installations (automatic tag injection)
js-cdn.dynatrace.com ✔✔DT JS tag for agentless monitoring (no OneAgent, no automatic injection)
DT JS tag for Managed ✔✔Your own CDN or domain in Dynatrace Managed; CDN is recommended and ends with the string _bs.js
How to confirm the DT JS tag downloaded successfully. ✔✔The DT JS tag for your application is downloaded along with all other web page resources.
Confirm the tag is downloading using dev tools in your browser.
Look for responses that contain JS code.
Responses must have status 200 or 304. The script file may come from cache.
The existence of the JS object dT_
To do this, go to your browser dev consolt andtype dT_ [enter] and an object should be returned.
Reasons a DT JS tag may not be downloadable for agentless monitoring ✔✔1. The tag isn't correct
- Content Security Policy rules prevent loading of the tag
- The RUM JS host (https://js-cdn.dynatrace.com) isn't reachable for client browsers due to firewall rules or proxy server configuration. Connections to and from https://js-cdn.dynatrace.com must be allowed.
Reasons a DT JS tag may not be downloadable for automatic injection on web servers ✔✔1. Rules on firewalls, load balancers, or proxies aren't configured to allow DT JS download.
Reasons a DT JS tag may not be downloadable for automatic injection on Java application servers ✔✔1. Root application doesn't exist. The JS tag is usually loaded from the web server root path (.../ruxitagentjs_...)
- Your Java application server serves static content in a way that doesn't use the servlet stack. In such cases, the JS tag can't be downloaded.
What can I do if I know RUM user action data is missing? (CORS-related troubleshooting) ✔✔Perform the following checks in Chrome with DevTools open:
- Make sure the user action triggers network traffic
- Make sure the action uses setTimeout(async)
