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| Section | Objectives |
|---|---|
| Server Architecture and Administration | - Server processes and services management - Installation and configuration concepts - Tableau Server architecture components |
| Security and Permissions | - Authentication methods (SAML, Active Directory, etc.) - Row-level security - Permission models and roles |
| Troubleshooting and Optimization | - Performance tuning strategies - Common server issues and resolution |
| User and Content Management | - User provisioning and authentication - Permissions and content governance - Projects, workbooks, and data sources management |
| Data Sources and Extract Management | - Extract refresh scheduling - Data connections and published data sources - Live vs extract data strategies |
| Server Monitoring and Maintenance | - Upgrades and patch management - Backup and restore procedures - Performance monitoring and logs |
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50. Frage
You install Tableau Server on a server that has four processor cores. How many instances of each Tableau Server process are installed?
Antwort: D
Begründung:
Tableau Server's installer configures process instances based on hardware and deployment type (single-node vs. multi-node). For a single-node installation with 4 cores, we need to consider the default process topology
. Let's break this down exhaustively:
* Key Processes:
* Gateway: Handles incoming requests (1 instance).
* Application Server (VizPortal): Manages UI and sessions (1 instance).
* VizQL Server: Renders visualizations (2 instances).
* Backgrounder: Runs extract refreshes, subscriptions (1 instance).
* Data Server: Manages data connections (1 instance).
* File Store: Stores extracts (1 instance).
* Repository: Metadata database (1 instance, active).
* Cluster Controller, Cache Server, etc.: Supporting processes (typically 1 each).
* Default Configuration:
* On a single-node install, Tableau sets 1 instance per process unless specified otherwise, except for VizQL, which defaults to 2.
* The installer doesn't scale instances linearly with cores (e.g., 4 cores # 4 instances). Post-install, TSM can adjust this (e.g., tsm topology set-process), but the question asks for the installed default.
* Minimum hardware (8 cores, 32 GB RAM) suggests higher defaults, but 4 cores still triggers a minimal setup.
* Option B (1): Correct with Caveat.
* Most processes (e.g., Backgrounder, Gateway, Data Server) default to 1 instance on install, regardless of 4 cores.
* VizQL defaults to 2, but the question's phrasing ("each process") implies a general rule.
Historically (and per docs), 1 is the baseline for most, with VizQL as the exception.
* Interpretation: Assuming "each" means the typical case, 1 fits most processes on a 4-core single- node setup.
* Option A (2): Incorrect. Only VizQL defaults to 2; others don't.
* Option C (8): Incorrect. Far exceeds defaults-8 cores might justify more, but not 4.
* Option D (4): Incorrect. Not tied to core count by default; manual config would be needed.
Why This Matters: Understanding defaults aids capacity planning-4 cores is below production minimum (8), so performance tuning may be needed post-install.
Reference: Tableau Server Documentation - "Server Process Settings" (https://help.tableau.com/current/server
/en-us/processes.htm).
51. Frage
What is the maximum number of tasks that a single Backgrounder process can execute simultaneously?
Antwort: A
Begründung:
The Backgrounder process in Tableau Server handles tasks like extract refreshes and subscriptions -- let's explore its concurrency:
Backgrounder Behavior:
Each instance is single-threaded for task execution--one task at a time per Backgrounder.
Multiple Backgrounders (e.g., in multi-node setups) increase parallelism, but a single Backgrounder is limited to 1 concurrent task.
Queue: Additional tasks wait in the queue, prioritized by their priority (1-100).
Option A (One): Correct.
Details: A single Backgrounder executes one task (e.g., an extract refresh) until completion before starting the next.
Config: Add more Backgrounders via TSM (tsm topology set-process -n node1 -pr backgrounder - c 2) for more concurrency.
52. Frage
What should you use to set a preferred active repository?
Antwort: A
Begründung:
Tableau Server uses a PostgreSQL database as its repository to store metadata, user information, and permissions. In a high-availability (HA) setup with multiple nodes, there are typically two repository instances: one active and one passive. The "preferred active repository" refers to designating which repository instance should take priority as the active one. This is managed through Tableau Services Manager (TSM).
The correct method to set the preferred active repository is by using the tsm configuration set command.
Specifically, you would use a command like:
tsm configuration set -k pgsql.preferred_host -v <hostname>
This command allows an administrator to specify the preferred host for the active repository, ensuring control over which node takes precedence in an HA environment.
Option B (tabcmd set command) is incorrect because tabcmd is a command-line utility primarily used for administrative tasks like managing users, groups, and content (e.g., publishing workbooks), not for configuring server topology or repository settings.
Option C (TSM browser client's Maintenance page) is incorrect because the Maintenance page in the TSM web interface is used for tasks like backups, restores, and cleanup, but it does not provide an option to set the preferred active repository.
Option D (TSM browser client's Configuration Topology page) is partially relevant since the Topology page displays the current configuration of services across nodes, including the repository. However, it does not allow direct modification of the preferred active repository; this must be done via the tsm command line.
Reference: Tableau Server Documentation - "Configure Tableau Server Repository" (https://help.tableau.com
/current/server/en-us/repository.htm) and "TSM Command Line Reference" (https://help.tableau.com/current
/server/en-us/cli_configuration_set.htm).
53. Frage
Which three types of data should you backup to ensure that you can restore a Tableau Server? (Choose three.)
Antwort: A,B,D
Begründung:
Backing up Tableau Server ensures recovery from failures or migrations. A full backup includes multiple data types-let's dissect this comprehensively:
* Backup Components:
* Repository Data: PostgreSQL database with metadata (users, permissions, workbooks). Backed up via tsm maintenance backup -f <filename>.tsbak.
* Configuration Data: Server settings (e.g., ports, authentication) also in the .tsbak file.
* Server Secrets: Encryption keys, internal tokens, Repository passwords-critical for restoring functionality.
* Extracts: .hyper files in File Store (optional, separate backup).
* Option A (Server secrets and Repository passwords): Correct.
* Details: Includes encryption keys (for extracts), internal tokens (process communication), and Repository credentials. Backed up separately or stored securely (e.g., tsm security export-keys).
* Why Critical: Without these, restored data may be inaccessible or services may fail.
* Option C (Configuration data): Correct.
* Details: Ports, authentication settings, process topology-part of the .tsbak file.
* Why Critical: Restores server behavior and connectivity post-recovery.
* Option D (Repository data): Correct.
* Details: Core metadata database-also in .tsbak.
* Why Critical: Without it, all content and user data is lost.
* Option B (Topology data): Incorrect.
* Details: Topology (process distribution) is part of configuration data in the .tsbak, not a separate entity. It's not distinctly backed up as "topology data." Why This Matters: A complete backup (secrets, config, repository) ensures full restoration-missing any piece risks an unusable server.
Reference: Tableau Server Documentation - "Back Up Tableau Server Data" (https://help.tableau.com/current
/server/en-us/backup_restore.htm).
54. Frage
You use Tableau Desktop 10.5 and plan to publish a visualization to a Tableau Server that runs version 2020.1. You are assigned the Creator site role, and Publisher permissions for a project.
What statement correctly describes what happens when you attempt to publish the visualization?
Antwort: B
Begründung:
Tableau Desktop and Tableau Server have versioning considerations when publishing content, particularly regarding compatibility between older Desktop versions (e.g., 10.5) and newer Server versions (e.g., 2020.1). Let's break this down step-by-step:
Version Context: Tableau Desktop 10.5 was released in 2017 and used the .tde (Tableau Data Extract) format for extracts. Tableau Server 2020.1, released in 2020, introduced the .hyper extract format (starting with version 10.5, but fully standardized later). When publishing from an older Desktop version to a newer Server version, Tableau ensures backward compatibility but may upgrade certain components.
Publishing Process: With a Creator site role and Publisher permissions, you have the rights to publish workbooks to the specified project. Tableau Server accepts workbooks from older Desktop versions (e.g., 10.5) and upgrades them to the current Server version (2020.1) during publishing. This process is seamless for the workbook itself, but extracts require special handling.
Extract Handling: If the workbook contains embedded .tde extracts (stored within the .twb or .twbx file), Tableau Server 2020.1 converts these to .hyper format upon publishing. This conversion is necessary because .hyper replaced .tde as the default extract engine starting in Tableau 10.5 and beyond, offering better performance and scalability. During this process, Tableau Desktop or Server displays a warning to inform the user of the upgrade, as it's a one-way conversion (you can't revert to .tde on the Server).
Option C (Warning: embedded .tde extracts will be upgraded to .hyper): Correct. This is the precise warning displayed when a workbook with .tde extracts is published to a Server version that uses .hyper. It ensures the user is aware of the format change, which might affect extract refresh schedules or performance expectations.
55. Frage
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