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Dynatrace Professional > RUM > Flashcards

RUM Flashcards

1
Q

3 injection types for web apps

A
  1. automatically by OneAgent
  2. manually if using agentless monitoring
  3. using Dynatrace browser extensions
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2
Q

Monitoring approach and injection type for mobile apps

A
  1. OneAgent for iOS or Android

2. no injection required

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3
Q

What is a user action?

A

An interaction with the web browser that involves a request to the web server

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4
Q

What are the types of user actions?

A
  1. load action
  2. XHR action
  3. custom action
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5
Q

The 2 differences between the types of user actions are?

A
  1. how the action duration is calculated

2. what metrics are available

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6
Q

How is a load action defined?

A

The actual loading of a page

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7
Q

What is the action duration for a load action?

A

The duration of the load of the page

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8
Q

When does the duration of a load action begin?

A

The duration start is set to the attribute navigationStart.

If not available, the start is set to the moment the Javascript RUM code was initialized.

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9
Q

When does the duration of a load action end?

A

The action ends when the onLoad handler finishes its task or after the completion of a XHR triggered by the handler itself.

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10
Q

How is a XHR action defined?

A

If the user actions lead to a XHR or a fetch() call, Dynatrace creates a XHR action

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11
Q

What is the action duration for a XHR action?

A

The duration between the XHR or fetch() call till the loading of all resources is completed

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12
Q

When does the duration of a XHR action begin?

A

The XHR action duration begins when the user actions lead to a XHR or a fetch() call

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13
Q

When does the duration of a XHR action end?

A

When the loading of all resources has been completed

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14
Q

How can you select which user interaction types should be detected automatically by RUM?

A

Application -> Edit -> Advanced Settings -> Advanced Setup

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15
Q

How can you define custom user actions?

A

Using the Javascript RUM API

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16
Q

What are the three parts of user action duration?

A
  1. Frontend time
  2. Network time
  3. Server time
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17
Q

Formula User action duration

A

(loadEventEnd or lastXHREnd) - actionStart

18
Q

Formula Frontend time

A

User action duration - Network time - Server TIme

19
Q

Formula Network time

A

(requestStart - actionStart) + (responseEnd - responseStart)

20
Q

Formula Server time

A

responseStart - requestStart

21
Q

What can you do to have a more meaningful name set for user actions?

A

Insert the data-dtname attribute into HTML

22
Q

How does Dynatrace assign even anonymous user sessions to known users?

A

By storing a persistent cookie on the browser of the user

23
Q

When does a user session start?

A

When the first user action was initiated

24
Q

When does a user session end?

A
  1. After 30 minutes of browser inactivity
  2. When the user closes his browser
  3. After a limit of 200 user actions were executed
  4. by calling the dtrum.endSession() method of the Javascript API
25
Q

How long does it take for a user session to be visible in the user session search?

A

Usually 4 minutes. However, this could sometimes exceed to 10.5 minutes.

26
Q

How are user actions grouped into user sessions?

A

Dynatrace stores info in cookies and local storage in order to correlate user actions

27
Q

How to edit Apdex for application

A

Apps -> select app -> edit app -> general

28
Q

How to edit Apdex for key user actions

A

Apps -> select app -> top3 user actions -> view full details -> scroll down to key user actions -> select key user action -> edit

29
Q

What are the 8 key performance metrics?

A
  1. User action duration
  2. Visual complete
  3. DOM interactive
  4. Speed index
  5. Time to first byte
  6. Load event start
  7. Load event end
  8. HTML downloaded
30
Q

What are the 3 performance levels of ApDex?

A
  1. Satisfactory
  2. Tolerable
  3. Frustrating
31
Q

How are User actions with JavaScript errors rated?

A

Frustrating

32
Q

What is the user experience score?

A

ApDex for user sessions

33
Q

What are the 5 masking types in session replay and which ones are enabled by default?

A
  1. All form fields (enabled)
  2. Password fields (enabled)
  3. Content
  4. Attribute
  5. Interaction (enabled for select forms e.g. gender)
34
Q

How can you map private IPs to a geolocation?

A

Settings > Web and mobile monitoring > Map IP addresses to locations

35
Q

When to use browser extension for RUM?

A

When you want to monitor 3rd party applications

36
Q

When to use agentless monitoring?

A

When you cant install OneAgent on your server

37
Q

What are the 3 insertion methods for RUM?

A
  1. Javascript tag
  2. Code snippet
  3. Inline code
38
Q

What data is displayed in the Waterfall analysis view?

A
  1. Document requests
  2. XHR requests
  3. Resources
39
Q

What are the 6 Top findings in the Waterfall analysis view?

A
  1. Uncompressed text resources
  2. Resources larger than 100kb
  3. Resources that have a browser cache rate lower than 50%
  4. Slow first party, third party, or CDN resources (> 200 ms)
  5. Contacted third party and CDN domains
  6. First party, third party, and CDN resources
40
Q

What metrics can you select in the Waterfall analysis view?

A

key performance metrics

41
Q

What are the 4 types of conversion goals?

A
  1. User action
  2. Session duration
  3. Number of user actions
  4. Destination

Dynatrace Professional (24 decks)

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