RELIABLE TDVAN5 TEST SIMS, TDVAN5 NEW BRAINDUMPS FILES

Reliable TDVAN5 Test Sims, TDVAN5 New Braindumps Files

Reliable TDVAN5 Test Sims, TDVAN5 New Braindumps Files

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TeraData HCIA-Datacom V1.0 Sample Questions (Q48-Q53):

NEW QUESTION # 48
The data science team reports that they do not have enough memory to run in-database Python scripts when the scripts operate simultaneously.
Which workload management feature should the Administrator use to resolve this issue?

  • A. Exceptions to place Python scripts consuming too much memory into a penalty box
  • B. Planned environments to specify periods when data scientists can run Python scripts
  • C. Virtual partitions to assign separate memory space to each Python script
  • D. Throttles to limit the concurrency of Python scripts

Answer: D

Explanation:
Using throttles in workload management allows the Administrator to limit the concurrency of Python scripts running in the system. By controlling the number of Python scripts that can run simultaneously, you can prevent memory exhaustion and ensure that enough resources are available for each script to execute without causing failures due to memory constraints.


NEW QUESTION # 49
A web application executes millions of tactical queries on different tables of a large Vantage system, as shown below:

The most frequent query of the application is using the following SQL with this variable parameter:

The application owner requested to check for optimizations to improve the runtime of the query.
What should the Administrator suggest in this situation?

  • A. Create a NUSI on Receiptline on each of the columns: ProductTypeId, OrderTypeId, VendorId.
  • B. Create a sparse join index on Receiptline, with CustomerNumber as an input parameter.
  • C. ALTER the tables ProductType and OrderType to use a sparse map that includes only a subset of the AMPs.
  • D. Instead of directly accessing table Receiptline. a global temporary table should be used, that needs to contain prefiltered rows with CustomerNumber = <parameter>.

Answer: B

Explanation:
A sparse join index can be used to store a subset of rows from a table based on the condition of the most frequently queried parameter, in this case, CustomerNumber. By creating a sparse join index on the Receiptline table with CustomerNumber as an input parameter, the query can access a smaller subset of the data more efficiently, which can significantly improve performance, especially when millions of tactical queries are involved.
The other options are less optimal for this situation:
Create a NUSI on Receiptline: While NUSIs can improve query performance, creating NUSIs on multiple columns (e.g., ProductTypeId, OrderTypeId, VendorId) may not be as effective for improving this specific query focused on CustomerNumber.
ALTER tables ProductType and OrderType: Using a sparse map for these small tables (55 and 175 rows) wouldn't provide much benefit in terms of performance improvement, as the issue is not with these tables but with the larger Receiptline table.
Use a global temporary table: While prefiltering data in a temporary table could help in certain situations, this adds complexity and maintenance overhead. Additionally, it wouldn't necessarily offer a significant performance boost compared to a sparse join index.


NEW QUESTION # 50
An Administrator has created a new view, ViewDB.SystemMetrics, that combines and aggregates several key system metrics. The data is non-secure in nature, and the intent is for all Vantage users to have SELECT access to it.
Which statement can the Administrator execute to meet this goal?

  • A. GRANT SELECT ON ViewDB.SystemMetrics TO DEFAULT;
  • B. GRANT SELECT ON ViewDB.SystemMetrics TO DBC;
  • C. GRANT SELECT ON ViewDB.SystemMetrics TO PUBLIC;
  • D. GRANT SELECT ON ViewDB.SystemMetrics TO ALL;

Answer: C

Explanation:
PUBLIC is a special keyword in Teradata that refers to all users on the system. Granting privileges to PUBLIC will automatically apply those privileges to every user, including future users, without the need to grant permissions individually.
Option A (GRANT SELECT ON ViewDB.SystemMetrics TO ALL) is not valid because ALL is not a recognized keyword for granting privileges to all users in Teradata.
Option C (GRANT SELECT ON ViewDB.SystemMetrics TO DBC) would grant the privilege to the DBC user (the system database user), but this would not provide access to all users.
Option D (GRANT SELECT ON ViewDB.SystemMetrics TO DEFAULT) is not a valid syntax in Teradata for granting privileges.
GRANT SELECT ON ViewDB.SystemMetrics TO PUBLIC; will allow all users to have SELECT access to the view.


NEW QUESTION # 51
The Administrator has just created a new database object on a Vantage system.
Which privilege is NOT automatically granted to that database on itself?

  • A. CREATE PROCEDURE
  • B. CREATE AUTHORIZATION
  • C. CREATE MACRO
  • D. CREATE TRIGGER

Answer: B

Explanation:
When a new database object is created in Teradata Vantage, certain object creation privileges (such as CREATE MACRO, CREATE PROCEDURE, and CREATE TRIGGER) are typically granted automatically to the database or user who created the object.
However, the CREATE AUTHORIZATION privilege, which allows a user to create an authorization object (used for external authentication to external systems, such as a cloud storage service), is not automatically granted. This privilege requires an explicit grant.


NEW QUESTION # 52
An Administrator wants to see the list of foreign servers and their parameters in a Teradata QueryGrid configuration for a Vantage system.
Which database shows this information?

  • A. TD_SYSFNLIB
  • B. TD_FOREIGN_DB
  • C. SECADMIN
  • D. TD_SERVER_DB

Answer: D

Explanation:
TD_SERVER_DB contains the metadata for foreign servers and their configurations in a Teradata QueryGrid environment. This includes information about the foreign servers and their associated parameters, which is useful for managing and monitoring QueryGrid connections.
The other options are not directly relevant for this purpose:
TD_SYSFNLIB contains system functions and is unrelated to QueryGrid server configurations.
TD_FOREIGN_DB is not a valid database in the context of QueryGrid configuration.
SECADMIN is related to security and user management but does not contain information about foreign servers in QueryGrid.


NEW QUESTION # 53
......

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