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NEW QUESTION # 58
You install Tableau Server on a server that has four processor cores. How many instances of each Tableau Server process are installed?
Answer: A
Explanation:
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.
NEW QUESTION # 59
What two events must occur for Tableau Server to recompute queries for a workbook cache after a scheduled refresh? (Choose two.)
Answer: B,C
Explanation:
Tableau Server uses caching to speed up workbook loading by storing query results. After a scheduled extract refresh updates the data, the cache may need recomputing-let's dive into the mechanics:
* Caching Basics:
* VizQL Cache: Stores rendered views and query results for faster access.
* Refresh Trigger: A scheduled refresh updates the underlying extract (.hyper), but the cache isn't automatically invalidated-it's demand-driven.
* Recompute Conditions: Tableau recomputes the cache when the workbook is accessed (viewed) and its data has changed (e.g., via refresh).
* Evaluation:
* Option B (The workbook has upcoming scheduled refresh tasks): Correct.
* Why: An upcoming refresh task indicates the workbook relies on an extract with a schedule. After the refresh runs, the data changes, priming the cache for recomputation on next view. Without a schedule, no refresh occurs, so this is a prerequisite.
* Detail: Schedules are set in Schedules > Tasks-e.g., "Daily at 2 AM."
* Option D (The workbook has been viewed recently): Correct.
* Why: Viewing triggers cache recomputation if the data has changed (e.g., post-refresh).
Tableau uses a "lazy caching" model-cache updates only when a user loads the workbook, ensuring fresh results.
* Detail: "Recently" isn't strictly defined but implies post-refresh access.
* Option A (Published in the last month): Incorrect.
* Why: Publish date is irrelevant-cache recomputation ties to data changes and access, not publication timing.
* Option C (All Users group has permission rule allowing access): Incorrect.
* Why: Permissions enable viewing, but recomputation requires actual access (viewing) and a refresh event, not just potential access.
Why This Matters: Caching balances performance and freshness-understanding triggers prevents stale data surprises.
Reference: Tableau Server Documentation - "Caching and Performance" (https://help.tableau.com/current
/server/en-us/perf_cache.htm).
NEW QUESTION # 60
Which three types of authentications can be used with user-based licensing? (Choose three.)
Answer: A,C,D
Explanation:
Tableau Server's user-based licensing (Creator, Explorer, Viewer) ties licenses to individual users-let's determine compatible authentication methods:
* User-Based Licensing:
* Licenses are assigned per user, tracked by username.
* Authentication determines how users log in-must integrate with licensing.
* Option A (Local authentication): Correct.
* Details: Users are managed in Tableau Server's internal database-username/password set manually or via import.
* Why: Directly ties to user accounts, fully compatible with licensing.
* Option C (Trusted authentication): Correct.
* Details: Allows external apps to authenticate users via tickets (e.g., /trusted/<ticket>).
* Why: Maps to Tableau usernames, integrating with licensing-common for embedded analytics.
* Config: Trusted IPs or credentials set in TSM.
* Option D (Active Directory): Correct.
* Details: Uses AD for authentication (LDAP or Kerberos)-users sync to Tableau Server.
* Why: AD usernames align with licensing-supports SSO and user management.
* Config: Enable via tsm authentication active-directory configure.
* Option B (Reliance authentication): Incorrect.
* Why: Not a recognized Tableau authentication method-likely a typo (e.g., for "Resilience" or misheard term). No such feature exists.
Why This Matters: Authentication flexibility ensures user-based licensing fits diverse IT environments- critical for adoption.
Reference: Tableau Server Documentation - "Authentication" (https://help.tableau.com/current/server/en-us
/auth_overview.htm), "Licensing Overview" (https://help.tableau.com/current/server/en-us/license_usage.
htm).
NEW QUESTION # 61
Which three methods should an administrator use to create a Tableau Server group or project?
(Choose three.)
Answer: A,C,D
Explanation:
Tableau Server provides multiple methods to create groups (collections of users) and projects (content containers), catering to UI, CLI, and programmatic needs. Let's dissect each option with depth:
Option B (Tableau Server browser interface): Correct.
Groups: Go to Users > Groups > Add Group, name it, and optionally sync with Active Directory.
Projects: Go to Content > Projects > New Project, set name, description, and permissions.
Details: The web UI is intuitive, requiring server/site administrator rights. It's ideal for manual, ad- hoc creation with immediate visibility.
Permissions: For projects, you can set default permissions or lock them here.
Option C (tabcmd): Correct.
Groups: tabcmd creategroup "GroupName" creates a local group. Add users with tabcmd addusers "GroupName" --users "user1,user2".
Projects: tabcmd createproject -n "ProjectName" -d "Description" creates a project. Details:
tabcmd is a command-line tool for batch operations or scripting (e.g., automating group/project setup). It requires a server admin login (tabcmd login). Limitation: No AD sync via tabcmd--that's UI or REST API territory.
Option D (REST API): Correct.
Groups: Use the POST /api/api-version/sites/site-id/groups endpoint with a payload (e.g.,
{"group":
{"name": "GroupName"}}). Supports AD import too.
Projects: Use POST /api/api-version/sites/site-id/projects (e.g., {"project": {"name":
"ProjectName", "description": "Desc"}}).
Details: The REST API is programmatic, ideal for integration with external systems or bulk automation. Requires authentication via a token and server/site admin rights. Power: Offers full control, including nested projects and custom permissions.
NEW QUESTION # 62
What is the minimum hardware recommendation for a single-node production installation of Tableau Server?
Answer: A
Explanation:
Tableau Server's minimum hardware recommendations for a production single-node deployment ensure reliable performance for small to medium workloads. As of the latest documentation:
* CPU: 8 cores (2.0 GHz or higher) to handle concurrent users, rendering, and background tasks.
* RAM: 32 GB to support in-memory processing (e.g., VizQL, Data Engine) and caching.
* Disk Space: 50 GB free for installation, logs, extracts, and temporary files.
Let's break it down:
* Option C (8-Core CPU, 32 GB RAM, 50 GB free disk space): Correct. This matches Tableau's official minimum for production:
* 8 cores ensure sufficient parallelism for processes like Backgrounder and VizQL.
* 32 GB RAM supports multiple users and extract refreshes.
* 50 GB disk space accommodates growth (initial install is ~1-2 GB, but logs and extracts expand).
* Option A (4-Core, 16 GB RAM, 50 GB): Incorrect. Too low for production-4 cores and 16 GB RAM are below the threshold for reliable performance under load.
* Option B (2-Core, 8 GB RAM, 15 GB): Incorrect. This is for non-production (e.g., trial) setups, insufficient for production stability.
* Option D (4-Core, 64 GB RAM, 50 GB): Incorrect. 4 cores are inadequate, though 64 GB RAM exceeds the minimum (32 GB).
Why This Matters: Under-spec hardware can lead to slow performance, failed refreshes, or crashes in production-adhering to the minimum ensures stability.
Reference: Tableau Server Documentation - "Minimum Hardware Recommendations" (https://help.tableau.
com/current/server/en-us/requirements.htm).
NEW QUESTION # 63
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