Monitoring and Analytics Flashcards

1
Q

What does monitoring consist of?

A
  • observing systems
  • collecting metrics
  • evaluating metrics over time
  • using metrics to make decisions or take actions
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2
Q

What is Amazon CloudWatch?

A

A tool for monitoring infrastructure and applications in real time.

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3
Q

What is CloudWatch alarm?

A

Alert is generated and action is triggered when a variable reaches certain threshold.
Alarms are integrated with SNS, which allows for e.g. sending SMS to someone.

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4
Q

What is CloudWatch Dashboard?

A

integrates metrics on a screen in near real time with auto refresh

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5
Q

Benefits of CloudWatch

A
  • access all metrics from a central location
  • gain visibility across applications, infrastructure, services
  • gain instights across distributed stack
  • reduce MTTR (mean time to resolution)
  • drive insights to optimize applications and perational resources (e.g. aggregate usage across instances)
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6
Q

What is AWS CloudTrail?

A

Comprehensive API auditing tool. Every request made to AWS gets logged in the CloudTrail engine: who, what, when, what was the IP, what was the response, what is the new state, was the request denied, etc.

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7
Q

After what time events are visible in CloudTrail?

A

15 mintues

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8
Q

What is CloudTrail Insights?

A

A paid optional feature which detects unusual API activities in an account.

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9
Q

What is AWS Trusted Advisor?

A

A web service which inspects an AWS environment and provides real-time recommendations in accordance with AWS best practices.

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10
Q

Five pillars of AWS Trusted Advisor

A
  1. cost optimization (e.g. underused instances)
  2. performance
  3. security (e.g. no MFA)
  4. fault-tolerance (e.g. volumes not backed up)
  5. service limits
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11
Q

What does AWS Trusted Advisor do?

A

Runs a series of checks related to each pillar. Displays compiled and categorized items to look into in the AWS Console. It can send emails.

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12
Q

Is AWS Trusted Advisor paid?

A

Some checks are free, other depend on the support plan bought.

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