==== Pregunta 1 ==== What method of checking is initiated by the monitoring system to collect data? * Metric * Passive check * Alert * **Active check** ==== Pregunta 2 ==== What are two benefits of proactive monitoring? * Set thresholds for metrics * **Avoid outages, optimize systems** * Integrations provide metrics * Easy to write custom plugins ==== Pregunta 3 ==== Splunk specializes in what type of monitoring? * **Specialized log aggregation** * Infrastructure monitoring * General purpose SaaS * Business monitoring ==== Pregunta 4 ==== How can custom metrics be viewed in Datadog after publishing? * Trace Explorer * Log Explorer * Cassandra Explorer * **Metrics Explorer** ==== Pregunta 5 ==== What does Business monitoring provide early feedback on? * **Progress towards business goals** * Application functionality * Infrastructure health * Security threats ==== Pregunta 6 ==== What does security monitoring check for? * Infrastructure problems * **Vulnerabilities and threats** * Application issues * Business metrics ==== Pregunta 7 ==== What are some examples of metrics that monitoring tools collect? * **Disk space, memory, SSL expiration** * Severity levels * Events * Up/down status ==== Pregunta 8 ==== What kind of monitoring tool is Nagios? * **Popular first generation, open source** * Specialized application performance * Specialized log aggregation * General purpose SaaS ==== Pregunta 9 ==== What does Catchpoint monitor? * Business KPIs * Infrastructure * App code * **External application accessibility** ==== Pregunta 10 ==== What is the difference between an alert and a notification? * Notification contains more details * No difference * Alert is manual, notification automated * **Notification is part of alert, alert triggers actions** ==== Pregunta 11 ==== What command checks if the SNMP daemon is running on Ubuntu? * sudo snmpd status * sudo /etc/init.d/snmpd status * sudo service snmpd status * **sudo systemctl status snmpd** ==== Pregunta 12 ==== What process is used to collect metric values periodically for time-series data? * Integration * Monitor * Threshold * **Check** ==== Pregunta 13 ==== What command tests SNMP connectivity on localhost? * datadog-agent jmx list localhost * **snmpwalk -v2c -cpublic localhost** * jmxtool localhost * snmpget -v2c -cpublic localhost ==== Pregunta 14 ==== Which support level would product support be? * **L1** * None * L3 * L2 ==== Pregunta 15 ==== What does Application monitoring help to check? * Monitoring infrastructure * Business goals are met * **Application is functioning correctly** * Health of infrastructure ==== Pregunta 16 ==== What are the three levels of on-call support? * Warning, critical, informational * Active, passive, hybrid * External, internal, security * **L1 product support, L2 SREs, L3 engineers** ==== Pregunta 17 ==== What provides steps for on-call staff to respond to alerts? * Severity Level * Downtime * **Runbook** * Threshold ==== Pregunta 18 ==== What type of monitoring focuses on servers, storage, load balancers, etc? * **Infrastructure monitoring** * Application monitoring * Business monitoring * Platform monitoring ==== Pregunta 19 ==== What is the main SNMP configuration file edited on Ubuntu? * /etc/jmxtool.conf * **/etc/snmp/snmp.conf** * /etc/datadog.conf * /etc/snmpd.conf ==== Pregunta 20 ==== What command-line tool is commonly used to scan SNMP-enabled devices? * **snmpwalk** * curl * jmxtool * snmpget ==== Pregunta 21 ==== What does Catchpoint/Apica provide? * Log aggregation * Infrastructure monitoring * APM * **"Last mile" monitoring from locations** ==== Pregunta 22 ==== What port does DogStatsD listen on by default? * **8125** * 8080 * 7199 * 2003 ==== Pregunta 23 ==== In what way is a notification from an alert? * The warning when a threshold is crossed * A time window when alerting is disabled * Published details about system changes * **It's a message sent as part of an alert** ==== Pregunta 24 ==== What technology allows Java applications to expose metrics? * HTTP * **JMX** * SNMP * StatsD ==== Pregunta 25 ==== What file stores metrics collected by the SNMP agent? * conf.yaml * **Management Information Base (MIB)** * metrics.csv * snmp.log ==== Pregunta 26 ==== Which monitoring topology has the infrastructure in data centers but the monitoring backend in the cloud? * Multiple Data Centers * **Data Center with Cloud Monitoring** * Single Data Center * All in Cloud with In-House Monitoring ==== Pregunta 27 ==== What aspect of monitoring focuses on checking software system health to determine availability and detect deterioration early? * Overview of monitoring tools * Primary focus * Key aspects * **Types of monitoring** ==== Pregunta 28 ==== What technology allows publishing custom metrics to Datadog? * JMX * **DogStatsD** * Apache Cassandra * SNMP ==== Pregunta 29 ==== What does the "TICK" stack include? * **Telegraf, InfluxDB, Chronograf, Kapacitor** * Datadog, AppDynamics, Catchpoint, Apica * Tick, Tock, Click, Clack * Nagios, Zabbix, Splunk, Elasticsearch ==== Pregunta 30 ==== What protocol is used to monitor network devices like routers and switches? * SMTP * **SNMP** * HTTP * JMX ==== Pregunta 31 ==== An up/down status refers to what kind of measurement? * Time-bound measurement providing insight * Details about changes to a system * **Binary status like process/website up/down** * Warnings when metrics breach thresholds ==== Pregunta 32 ==== What does Infrastructure monitoring focus on? * Business KPIs * Application code and services * Security threats * **Health of infrastructure components** ==== Pregunta 33 ==== What would you do during a downtime window? * Resolve the underlying issue * Disable alerting temporarily * Create a runbook * **Enable additional alerting**