DT Cert Questions and Answers Already Passed

DT Cert Questions and Answers Already Passed Out of the box Smartscape -Cross-tier and same-tier process, service, and application dependencies -Performance of dependencies and their impact on application performance -Third-party dependencies and their impact on performance -Host communication -Quick access to detail drill-downs Problem evolution player Can investigate each issue from the point where it started, through root cause analysis, and all the way to its ultimate resolution. Dynatrace Managed first step To obtain a Dynatrace Managed license Dynatrace SaaS first step Install ActiveGate ActiveGate Proxy between Dynatrace OneAgent and Dynatrace Server. ActiveGate is highly recommended for both SaaS and Managed deployments. OneAgent -Collecting all monitoring data within your monitored environment. -Injects all tags required for UX monitoring into the HTML of your application pages. -Monitors: servers, applications, services, databases, processes, cloud instances, hosts, network health, processes, and services. ActiveGate use cases -Access sealed networks -Store memory dumps -Control load distribution of AWS monitoring -Collect external logs -Monitor using an ActiveGate plugin -Monitor virtualized infrastructure -Execute local HTTP monitors 8443 -Must be open for HTTPS communication with a Managed node (Cluster/Environment ActiveGate) rties file To configure an ActiveGate setting (for example, proxy, port, or memory dumps) (and then restart ActiveGate) Check which Environment ActiveGate version you've installed Nav menu Deployment status Dynatrace ActiveGates tab Check which Cluster ActiveGate version you've installed Management Console home page Click a Cluster ActiveGate component Main functions of ActiveGate -Message routing -Buffering and compression -Authentication -Entry point for sealed networks Solid lines active relationships Dotted lines no activity for 2+ hours No lines After 72 hours of inactivity Data Center (base level) -A group of virtual machines running a cloud instance (OR a set of vCenter-based virtual hosts) that transmit data to Dynatrace via a single security gateway -Each virtual host must have Dynatrace OneAgent installed -Needs a security gateway Host Physical or virtualized operating centers that provide memory and storage resources (denoted with OS logo or generic logo) Process Visualizations of each node that corresponds to a process (not all displayed maybe) Services -Sets of code that accept requests and return results. -Each node = different service. Opaque Services -Services detected on the calling side for which code-level visibility isn't available. -Can determine how they're processed but can't monitor directly. -Generic symbol. Applications No dependencies b/c of perspective of user Application score -Based on application Apdex ratings -Average of application Apdex value and the percentage of user actions that are not affected by problems. Services score The percentage of service calls that were successful and unaffected by problems Infrastructure score Percentage of host time during which no problems were encountered Metadata Key/value pairs that are inherent to any monitored entity (shown in the Properties section of any entity) Tag -Labels or markers. -Not information about an entity and don't belong to one specific entity -Used to identify certain sets of entities. Key Request Longevity 0-14 days (1-min) 14-28 days (5-min) 28-400 (1-hour) 400+ (1-day) Reduced priority alerting for low-volume requests Requests that contribute less than 1% to the overall load of a service won't raise alerts unless their impact is significant enough that the service's overall response time or failure rate is affected. Inactive monitoring candidate No activity with host for 2+ hours then not visualized OneAgent SDK Allows you to instrument your application manually to extend end-to-end visibility for unrecognized or unsupported technologies. When does monitoring begin? Automatically as soon as Dynatrace OneAgent starts operation and you restart all your application's server processes. Service Quality Report -avg(Application + Services + Infrastructure) -Sundays @ midnight Define services name Web server name, Context root, and Web application ID Who can you share a dashboard with Team members who have their own Dynatrace accounts within the same Dynatrace environment. How can you share a dashboard 1_ Via link. Anybody who has the link can view the dashboard, but they can't modify the dashboard. 2_ With specific users. Only selected users can view the dashboard. You can also assign permission for modifying shared dashboards. 72 hours Maximum time range of Smartscape data display Define Database service name The name of the database or schema, the database vendor and the IP address/port of the database Which we can see on Show Top findings User action, Geolocation, Browser, and OS Three problem thresholds Automated baselines, built in static thresholds, and user-defined static thresholds Service Flow Illustrates the sequence of service calls that are triggered by each service request in your environment Browser clickpath A simulated user visit that monitors your application's business critical workflows. Use the Dynatrace recorder to record an exact sequence of clicks and user input that you're interested in monitoring for availability and performance. Once you've captured the mouse clicks and additional user actions that you want your browser clickpath to include, your synthetic monitor runs automatically at regular intervals to test your site's availability and functionality. Root Cause Analysis Correlation of events across time, processes, hosts, services, applications, and both horizontal and vertical topological monitoring perspectives Mission Control -The proactive support for Dynatrace Managed that automatically solves many common maintenance and support challenges for you. -Handles upgrades and troubleshooting -24x7 support team Monitoring candidate Host that communicates with monitored hosts but doesn't have OneAgent installed on it (Dashed circle, generic host icon) Setup Mobile Alerting Go into global settings and downloading the mobile app HTTP Monitors -Executed by an Environment ActiveGate -Availability of your resource (websites or API endpoints) Minimum frequency for HTTP scripts 1 minute Browser monitor minimum frequency 5 minutes What is Cluster Management Console (CMC)? Web-based user interface that manages ONE DT Managed cluster What does CMC do? -View deployment status & confiugre DT Managed cluster -Manage cluster nodes and ActiveGates -Manage monitoring environments -Create user accounts and groups -View licensing info & usage -View audit logs & cluster events Crash Analysis -Determining root cause of a process crash. -Provides process crash entry for each affected process and monitored host -Detail may include: native core dump, Java core dump, abnormal program exit Cluster -Dynatrace monitoring infrastructure. -Contains 1+ cluster nodes that are set up using DT Managed installer What does each Dynatrace Managed cluster node run? -Dynatrace server -ActiveGate -1x Cassandra -1x Elasticsearch -1x NGINX Duration The amount of time a synthetic monitor or synthetic action waits before the web application is ready to initiate another user action. Environment topology 1) Hosts 2) Processes 3) Services 4) Applications 5) Data centers Event Any manual action performed on a server in your environment (even scheduled). Reported by DT and, where applicable, correlated with detected problems. Examples: -Machine reboots -System shutdowns -Process restarts -New code deployments Host units Cloud- up to 16GB RAM: 0.3 Units Full-stack- up to 16GB RAM: 1 Unit Network monitoring 1) traffic 2) retransmissions 3) connectivity 4) packets 5) interfaces Performance Analysis 1) actions 2) apdex 3) javascript errors 4) 3rd party providers 5) called services What can be used as a conversion? 1) URL cleanup rule (first) 2) naming rule 3) extract rule (last) Which processes are important? -Java app servers (Tomcat,Wedbsphere,Weblogic) -All Java apps -All .Net apps -Databases (like MS SQL, Oracle, MySQL, Cassandra, etc) -Web servers -Processes with open TCP ports -Processes that match specific conditions -CPU/Memory usage or network traffic that exceeds 5% with 3 samples taken in 5 mins Problem Notification -AI driven analysis -environmental context -root cause analysis -other details provided by 1+ incidents in your environment Examples of events -machine reboots -system shutdowns -process restarts -new code deployments How are .Net applications instrumented? Placing trace statements at strategic location in code for code tracing, performance metrics, error detection, dependency tracking, etc -not every .NET app is instrumented by default .Net monitoring capabilties -end-to-end transaction tracing for requests/services/queues,DBs -garbage collection, process metrics, etc -24x7 producyion grade CPU profiling -OneAgent SDK for custom tracing Main measures of technologies -CPU -Retransmissions -Connections -Suspension -GC time