Most frequently Asked Relic Interview Questions

1. What is New Relic?
2. What does New Relic do?
3. What are the benefits of New Relic?
4. Is New Relic a SIEM?
5. What language does New Relic use?
6. What is Runbook in New Relic?
7. What is Splunk Observability?
8. How can we ignore persistent SignalR connections in New Relic?
9. How do we apply plugin to Flavor in Gradle?
10. How can we set up New Relic for Django development server?
11. How can we read Router Logs?

What is New Relic?

New Relic helps in offering Software as a service that focuses on availability and performance monitoring, it helps in building better software. New Relic uses Standardized Apdex for setting and rating application performance through the environment in a unified manner. We can bring data from any Digital Store so we can fully understand our system.

What does New Relic do?

New Relic helps in:

• Bringing our Data together - New Relic can import data from our technology stck by using APIs, Integrations, Agents, can access from a Single UI.
• Analyzing our Data - New Relic can find the root and optimizes our systems.Building charts and dashboards for using Query Language.
• Responding Incidents Quickly - New Relic is used for detecting and warning us before the problem.

What are the benefits of New Relic?

• Software as a Service(SaaS) - New Relic helps in accessing data from anywhere and any tine.
• Availability Monitoring - New Relic will help in accessing a nice report and visualizing the downtime that has occurred.
• Customer Error Recording - New Relic can record customer error and helps in giving us a nice graph.
• Transaction Tracking - New Relic is used for seeing our application is spending the time.
• External Service Call Recording - New Relic helps in monitoring external calls and can degrade the performance of our app.

Is New Relic a SIEM?

New Relic is a platform for becoming our own Security Information and Event Management(SIEM). We can also check out all the catalogs which are available Apps and Accompanying Blog post series.

What language does New Relic use?

NRQL is used by New Relic for retrieving detailed data and getting the insight in our Hosts, Applications, and Business important activity.

What is Runbook in New Relic?

Runbook in New Relic is a service that helps in monitoring our services and automating tasks when the monitors fail. It also allows us to recover from application crashes and failures without disrupting our service.

What is Splunk Observability?

Skunk Observability helps in measuring the internal states of the system by examining the outputs. It also helps in improving the performance of distributing IT Systems, it uses 3 types of Telemetry Data:
Metrics, Logs & Traces used for providing visibility in distributed systems by allowing teams to improve the performance of the system.

How can we ignore persistent SignalR connections in New Relic?

We can ignore persistent SignalR connections by using the following command:

<?xml version="1.0" encoding="utf-8"?>
<extension xmlns="urn:newrelic-extension">
    <instrumentation>

        <!-- Optional for basic traces. -->
        <tracerFactory name="NewRelic.Agent.Core.Tracer.Factories.IgnoreTransactionTracerFactory">
            <match assemblyName="Microsoft.AspNet.SignalR.Core" className="Microsoft.AspNet.SignalR.PersistentConnection">
                <exactMethodMatcher methodName="ProcessRequest"/>
            </match>
        </tracerFactory>
    </instrumentation>
</extension>

How do we apply plugin to Flavor in Gradle?

We can apply plugin by using the following command:

if (!getGradle().getStartParameter().getTaskRequests()
        .toString().contains("Develop")){
    apply plugin: 'com.google.gms.google-services'
}

How can we set up New Relic for Django development server?

We can set up New Relic for Django development server by using the following command:

import newrelic.agent
newrelic.agent.initialize('/home/username/path/to/myproject/newrelic-1.9.0.21/newrelic.ini')

import os
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()
application = newrelic.agent.wsgi_application()(application)

How can we read Router Logs?

We can read Router Logs by using:
Queue - Number of requests that are waiting to be processed.
Wait - Length of the time request in the queue before being processed.
Service - Processes time of request.