Free Cisco 500-430 Exam Actual Questions

The questions for 500-430 were last updated On Jan 18, 2025

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Question No. 1

Which framework would require the implementation of custom correlation?

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Correct 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.


Question No. 2

Which data is unavailable in a hybrid deployment of AppDynamics where the AppDynamics Controller and Events Service are installed on-premises and the EUM Server is hosted in AppDynamics' SaaS cloud?

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Correct Answer: A

In a hybrid deployment of AppDynamics, where the AppDynamics Controller and Events Service are installed on-premises and the EUM Server is hosted in AppDynamics' SaaS cloud, the data that is unavailable is the analytics metrics for End-User Monitoring data sets. This is because the analytics metrics require the Events Service to store and process the unstructured data generated by the EUM agents. However, in a hybrid deployment, the EUM Server and the Events Service are not connected, and the EUM Server does not send the EUM data to the Events Service.Therefore, the analytics metrics for EUM data sets, such as browser records, mobile snapshots, network requests, and custom events, are not available in the Controller UI or the Analytics UI1.The other data, such as resource loading times, session information, and browser snapshots, are available in the EUM Server UI, as they are stored and displayed by the EUM Server itself2.Reference:Hybrid DeploymentandEUM Data Setsin the AppDynamics documentation.


Question No. 3

Which implementation mode should be used when deploying an EUM Server with reverse proxy from a security and performance standpoint in a production environment?

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Correct Answer: D

The EUM Server is the on-premises version of the EUM Cloud that receives, processes, and stores data from EUM agents. For production installation, AppDynamics recommends that the EUM Server and the Controller sit on different hosts, and the EUM Server hosts its own MySQL instance. This improves the scalability and performance of both components. Moreover, AppDynamics strongly recommends that SSL traffic from agents to the EUM Server is terminated at a reverse proxy that sits in front of the EUM Server in the network path, and forwards connections to the EUM Server using HTTP. This relieves the SSL processing load from the EUM Server, simplifies the certificate management, and enhances the security by isolating the EUM Server from the external Internet. Therefore, the best implementation mode for deploying an EUM Server with reverse proxy in a production environment is option D.Reference:EUM Server Deployment,Install a Production EUM Server,Reverse Proxy configuration for EUM, andBrowser EUM installationin the AppDynamics documentation and community.


Question No. 4

Which two statements are true regarding the AppDynamics REST API for retrieving metrics? (Choose two.)

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Correct 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


Question No. 5

What are three recommended steps to prepare a Linux environment for the installation of an AppDynamics Controller with a Large performance profile? (Choose three.)

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Correct Answer: A, D, F

To prepare a Linux environment for the installation of an AppDynamics Controller with a Large performance profile, which is suitable for monitoring up to 1000 agents, you need to perform the following steps:

Install libaio on the host machine if it does not already have it installed. This library facilitates asynchronous I/O operations on the system, which are required by the Controller. You can use the package manager of your Linux distribution to install libaio, such as yum or apt-get.For example, on CentOS, you can runyum install libaio1.

Verify the open file descriptor limit on the system. The file descriptor limit determines how many files a process can open at a time. The Controller requires a high file descriptor limit to handle the large number of connections and transactions. AppDynamics recommends setting the file descriptor limit to at least 65535 for the user account that runs the Controller.You can check the current file descriptor limit by runningulimit -nand modify it by editing the/etc/security/limits.conffile2.

Verify the process limit on the system. The process limit determines how many processes a user can run at a time. The Controller requires a high process limit to handle the large number of threads and subprocesses. AppDynamics recommends setting the process limit to at least 65535 for the user account that runs the Controller.You can check the current process limit by runningulimit -uand modify it by editing the/etc/security/limits.conffile2.

Other steps that are not required but recommended for the Controller installation are verifying the user account permissions, configuring the virus scanners, installing the netstat network utility, and setting the NUMA configuration2.You do not need to install MySQL or Java separately, as they are included in the Controller installation package3.Reference:Prepare Linux for the Controller,Install the Controller on Linux, andController System Requirementsin the AppDynamics documentation.


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