Get Cisco 500-430 Exam Dumps

Answer : D, E

According to the Cisco AppDynamics Professional Implementer (CAPI) documents, the two symptoms that occur if an AppDynamics Controller is not scaled correctly are:

The Controller's metric reporting is 7 to 10 minutes behind the current time. (D) This is a valid symptom because the AppDynamics Controller collects, processes, and stores metrics from the agents that monitor the applications, tiers, nodes, and other entities. If the Controller is not scaled correctly, it may not have enough resources, such as CPU, memory, disk space, or network bandwidth, to handle the incoming metrics data. This may result in a backlog of metrics data that causes the Controller to lag behind the current time.The Controller's metric reporting delay can affect the accuracy and timeliness of the performance analysis and troubleshooting12.

The Controller UI performs slowly. (E) This is a valid symptom because the AppDynamics Controller UI is a web-based application that allows users to access, visualize, and interact with the performance data and configuration settings of the AppDynamics platform. If the Controller is not scaled correctly, it may not have enough resources, such as CPU, memory, disk space, or network bandwidth, to serve the UI requests.This may result in a slow or unresponsive UI that affects the user experience and productivity12.

The incorrect options are:

Snapshots are not available after 2 weeks. (A) This is not a valid symptom because the AppDynamics Controller does not store snapshots for more than 2 weeks by default. Snapshots are detailed records of the execution context and call graphs of the business transactions that are monitored by the AppDynamics platform. Snapshots are useful for diagnosing performance issues and errors, but they also consume a lot of disk space. The AppDynamics Controller automatically purges the snapshots that are older than 2 weeks, unless the retention policy is changed by the user.The availability of snapshots is not affected by the Controller scaling, unless the disk space is exhausted34.

Health rule violations occur more frequently. (B) This is not a valid symptom because the AppDynamics Controller does not cause health rule violations to occur more frequently. Health rule violations are triggered when the performance or availability metrics of the monitored entities exceed the thresholds that are defined by the user. Health rule violations indicate the presence of performance issues or errors in the monitored applications, tiers, nodes, or other entities, not in the Controller itself.The frequency of health rule violations is not affected by the Controller scaling, unless the Controller fails to collect or process the metrics data5.

The average response times of tiers are higher than normal. This is not a valid symptom because the AppDynamics Controller does not affect the average response times of tiers. The average response time of a tier is the average time that the tier takes to process the incoming requests from the business transactions that are monitored by the AppDynamics platform. The average response time of a tier is influenced by the performance and behavior of the application code, the infrastructure, the dependencies, and the workload of the tier, not by the Controller itself. The average response time of a tier is not affected by the Controller scaling, unless the Controller fails to collect or process the metrics data .

1: Controller System Requirements - AppDynamics

2: Controller Sizing Guidelines - AppDynamics

3: Transaction Snapshots - AppDynamics

4: Configure Data Retention - AppDynamics

5: Health Rules - AppDynamics

Answer : C

As an AppDynamics Controller grows beyond supporting 500 agents, network throughput becomes more important. This is because the Controller needs to handle a large volume of data from the agents, as well as serve requests from the UI and API clients. Network throughput is the measure of how much data can be transferred over a network in a given time. A low network throughput can cause delays, errors, or timeouts in the communication between the Controller and the agents or clients.Therefore, it is recommended to monitor the network throughput of the Controller and ensure that it meets the minimum requirements for the expected load123.Reference:Controller System Requirements,Performance and Controller Sizing Guidelines,How to Run AppDynamics in Microsoft Azure

Answer : A, B

According to the Cisco AppDynamics Professional Implementer (CAPI) documents, the two methods that are available to define JVM options for an AppDynamics Controller so that the JVM options are retained across upgrades of the Controller are:

Use the modifyJvmOptions utility provided by AppDynamics. (A) This is a valid method because the modifyJvmOptions utility is a script that allows you to add, remove, or list the JVM options for the Controller without manually editing any files. The utility also validates the syntax and format of the JVM options and creates a backup of the original configuration. The utility is located in the <controller_home>/bin directory and can be run on Linux or Windows platforms.The utility updates the <controller_home>/appserver/glassfish/domains/domain1/config/domain.xml file with the specified JVM options, which are preserved during the Controller upgrade12.

Define JVM options on the Controller Settings page of the Enterprise Console. (B) This is a valid method because the Controller Settings page of the Enterprise Console is a graphical user interface that allows you to configure various settings for the Controller, including the JVM options. The Enterprise Console is a web-based application that provides a centralized way to manage the AppDynamics platform components, such as the Controller, the Events Service, and the EUM Server.The Enterprise Console also handles the Controller upgrade process and preserves the JVM options that are defined on the Controller Settings page34.

The incorrect options are:

Pass JVM options to the Controller via java -javaagent:''options jar''. This is not a valid method because the java -javaagent option is used to specify the path to the AppDynamics agent jar file, not the JVM options for the Controller. The agent jar file is used to instrument the Java applications that are monitored by the AppDynamics platform, not the Controller itself. The agent jar file also contains the agent configuration properties, such as the Controller host, port, account name, access key, and application name.Passing JVM options to the Controller via this option will not have any effect on the Controller performance or behavior5.

Use the controller.sh script provided by AppDynamics. (D) This is not a valid method because the controller.sh script is used to start, stop, or restart the Controller, not to define the JVM options for the Controller. The controller.sh script is located in the <controller_home>/bin directory and can be run on Linux platforms. The controller.sh script does not accept any arguments or parameters for the JVM options, and does not update any configuration files with the JVM options.Using this script to define the JVM options for the Controller will not have any effect on the Controller performance or behavior6.

Define JVM options manually in the domain. xmi file. (E) This is not a valid method because the domain. xmi file is not a configuration file for the JVM options for the Controller, but a configuration file for the WebSphere Application Server. The WebSphere Application Server is a Java EE application server that can be used to host the Java applications that are monitored by the AppDynamics platform, not the Controller itself. The domain. xmi file contains the settings for the WebSphere Application Server, such as the server name, port, security, data sources, and class loaders.Defining JVM options manually in this file will not have any effect on the Controller performance or behavior, and may cause errors or conflicts with the WebSphere Application Server configuration7.

1: Modify JVM Options for the Controller - AppDynamics

2: Release Upgrade Checklist for Controllers - AppDynamics

3: Configure the Controller Using the Enterprise Console - AppDynamics

4: Upgrade the Controller Using the Enterprise Console - AppDynamics

5: Install the Java Agent - AppDynamics

6: Start and Stop the Controller - AppDynamics

7: Configuring the WebSphere Application Server - IBM

Answer : A, E

The AppDynamics REST API for retrieving metrics allows you to get values generated for metrics by specifying the path of the metric and the time frame for the data1.The following statements are true regarding this API12:

Metrics can be retrieved for a fixed time range. You can use the time-range-type parameter to specify a fixed time range such as BEFORE_NOW, AFTER_TIME, or BETWEEN_TIMES. You can also use the duration-in-mins parameter to specify the length of the time range in minutes.

Wildcards can be used in the REST API metric path. You can use the asterisk () character as a wildcard to match any metric name or part of a metric name. For example, you can use the metric path Business Transaction Performance|Business Transactions||*|Average Response Time (ms) to retrieve the average response time for all business transactions in all tiers.Reference:Retrieve Metric Data,Retrieve Metric Hierarchy

Answer : A

Custom correlation is needed when the default detection mechanisms of AppDynamics are not capable of auto-correlating transactions across tiers or across parent-child threads in complex multithreaded applications. Custom correlation enables the user to configure AppDynamics to propagate a unique correlation key by using the extension points of the distributed protocol or by decorating the payload. Among the four options, a custom TCP concurrent server is the most likely to require the implementation of custom correlation, as it is an unsupported framework and protocol that may not have easily-defined method calls or payload objects to configure as exit points or entry points. The other options, such as SOAP, JMS, and WCF, are supported by AppDynamics and can be automatically correlated by the agents without the need for custom configuration.Reference:Custom Correlation for Java ApplicationsandConfigure Custom Correlation for .NET Applicationsin the AppDynamics community.