TSYS|Total System Services PMC Engineer Interview Questions and Answers

Splunk has a hierarchy of knowledge objects that includes apps, add-ons, and configurations.

• The highest level is the app, which contains all other knowledge objects.

• Add-ons are installed within apps and provide additional functionality.

• Configurations are specific to an app or add-on and include saved searches, alerts, and dashboards.

Configuring a cluster involves setting up multiple servers to work together as a single system.

• Choose a cluster management software such as Kubernetes or Apache Mesos

• Select the appropriate hardware and network infrastructure

• Install and configure the cluster management software on each server

• Define the roles and responsibilities of each server in the cluster

• Test the cluster to ensure it is functioning properly

Rsyslog is configured by editing its configuration file, usually located at /etc/rsyslog.conf

• Edit the configuration file using a text editor

• Specify the log files to be monitored and the actions to be taken for each log message

• Configure filters to select specific log messages based on criteria such as severity or facility

• Specify the destination for the log messages, such as a file, remote server, or database

• Restart the

Java 8 introduced several new features including lambda expressions, streams, and default methods.

• Lambda expressions allow for functional programming and concise code.

• Streams provide a way to process collections of data in a parallel and functional manner.

• Default methods allow for adding new functionality to interfaces without breaking existing implementations.

• Method references provide a way to refer to methods without...read more

Customised immutable java class can be written by declaring all fields as final and not providing any setters.

• Declare all fields as final

• Do not provide any setters

• Provide a constructor to initialize all fields

• Override equals() and hashCode() methods

• Make the class final

Splunk has a hierarchy of knowledge objects to organize and manage data.

• The hierarchy includes apps, add-ons, and configurations.

• Apps contain dashboards, reports, and alerts.

• Add-ons provide additional functionality to apps.

• Configurations include indexes, sourcetypes, and fields.

• Knowledge objects can be shared across the hierarchy.

• Higher level objects inherit settings from lower level objects.

Configuring a cluster involves setting up multiple servers to work together as a single system.

• Choose a cluster management tool such as Kubernetes or Apache Mesos

• Determine the number of nodes and their roles in the cluster

• Configure network settings and communication protocols

• Set up load balancing and failover mechanisms

• Ensure data consistency and replication across nodes

Rsyslog is configured by editing its configuration file, usually located at /etc/rsyslog.conf

• Identify the log sources and their corresponding log files

• Specify the log destination and format

• Configure filters and rules to process and route logs

• Restart the rsyslog service to apply changes

• Use tools like logger and tail to test the configuration