Architechture

Question 1

What is the architecture stack consist of

Answer 1

the data layer
data connectors
server components
gateway / load balancer
web browsers and mobile apps
tableau desktop

Question 2

Why is the Data Engine not limited the amount of memory on a system?

Answer 2

Because it can access disk storage as well as RAM and cache memory

Question 3

The work of Tableau Server is done mainly by what four processes?

Answer 3

Application server
VizQL Server
Backgrounder
Data Server

Question 4

Describe the process of opening a viz, auth to view

Answer 4

1. User points browser to server and the gateway directs him to the application server, web browser interface
2. User is authenticated via the application server
3. User opens a view, which sends a request to the VizQL process
4. VizQL process sends queries directly to the data source, returning a result set rendered as images presented to the user

Question 5

When you publish a data source to the server, what process is responsible for that object?

Answer 5

Data Server

Question 6

What is the purpose of the gateway?

Answer 6

To route requests to the appropriate process

Question 7

What browsers does Tableau Server supports

Answer 7

IE
Firefox
Chrome
Safari

Question 8

When does it make sense to use a Live Connection over an Extract?

Answer 8

If you have a highly optimized database that you want to utilize

Question 9

In a self-serve environment, what is the role for Data Governance?

Answer 9

To ensure data security while letting users get the answers they need.

That means making sure that the right data is available to the right people when they need it.

Question 10

What is the Tableau Data Server?

Answer 10

It is the component through which Tableau Server provides sharing and centralized management of published Data Extracts and shared proxy database connections.

Question 11

Tableau’s metadata system is a __#__ _____ system with __#__ ______ of ________ and __#__ runtime model called _______

Answer 11

3-tier
2-layers of abstraction
1
VizQL Model

Question 12

What is the job of the first abstraction layer in the metadata system? Whats the name of the layer?

Answer 12

The Connection which store information about how to access the data and what data to make available to Tableau.

Question 13

What is the second data layer in the metadata system and what does it do?

Answer 13

The Data Model, which automatically classifies fields as either measures or dimensions.

It also keeps track of user-generated fields, such as data sets and calculations.

Question 14

Data Model is ______ and ______ to changes in the Connection.

Answer 14

independent and insensitive

Question 15

What is the VizQL Model’s function?

Answer 15

The VizQL Model lets the user adjust the role and aggregation of the fields at runtime.

For example, a user can change a measure to a dimension.

Question 16

Data Models can have dependency on other Data Models. T or F?

Answer 16

True

Question 17

Recommended minimum hardware requirements?

Answer 17

8 cpu cores and 32gb of memory

Question 18

In a multi-cluster environment, how do you make it Highly Available?

Answer 18

Add a backup machine to serve as backup to the Primary Node

Question 19

What is the first level of security and what is the purpose?

Answer 19

Authentication

Purpose:

1. prevent unauthorized access
2. personalize each user’s experience

Question 20

When users log on to Tableau Server, they are logging on to the database. T or F?

What does that mean?

Answer 20

False

It means that users will also need to have credentials to log in to the database in order to see views/data sources

Question 21

In all cases, whether authentication takes place locally or is external, each user identity must be represented in the Tableau Server _______ ________ , which is managed by the ___________.

Answer 21

identity store

repository

Question 22

By default, the gateway process listens on port __#__ (for ____ requests) and __#__ (for ____ requests)

Answer 22

80 for HTTP

443 for SSL

Question 23

What do Site Roles define?

Answer 23

Which users are administrators and which ones are content consumers or publishers

Question 24

In the context of authentication, it’s important to understand that users are not authorized to access external data sources through Tableau Server by virtue of having an account on the server.

What does that mean?

Answer 24

In other words, in the default configuration, Tableau Server does not act as a proxy to external data sources.

Such access require either:

1. additional configuration of the data source on Tableau Server, or
2. authentication at the data source when the user connects from Tableau Desktop.

Question 25

When you install Tableau Server, you must select the process that the server will use to manage user authentication: 1) ________ or 2) __________.

Answer 25

Local authentication or Active Directory.

Question 26

When a user logs onto Tableau Server from a Desktop or a web client, their _________ are passed through using __________, which then verifies them and sends an ______ ________ to Tableau Server.

Answer 26

credentials

windows integrated security to active directory

authentication token