Latest TDVAN5 Test Preparation - Valid TDVAN5 Exam Syllabus

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TeraData TDVAN5 Exam Syllabus Topics:

Topic	Details
Topic 1	User Administration: This section evaluates the skills of system administrators in meeting user security requirements through roles and proxy access configurations. Candidates will also learn about the functionality and benefits of profiles, as well as the key attributes that should be set for a new user.
Topic 2	Monitoring Vantage: This section of the exam measures the skills of IT professionals such as system administrators. It covers how to effectively use Viewpoint to investigate system conditions, monitor external queries, and administer both Viewpoint and monitored systems.
Topic 3	Security Management & Auditing: This section of the exam measures the skills of such database managers. It covers the features, functionality, and benefits of access logging and advanced security configurations.
Topic 4	Database Management: This section tests the skills of database administrators in managing access rights and advanced analytic functions. It covers logging benefits, privilege types, and the impact of changing global parameters on user sessions.
Topic 5	Performance Management: This section of the exam evaluates the skills of TeraData database administrators. It focuses on strategies for managing statistics, implementing DBQL logging, and using performance data to troubleshoot and resolve system issues.

TeraData HCIA-Datacom V1.0 Sample Questions (Q36-Q41):

NEW QUESTION # 36
An Administrator is configuring an alert service on a Vantage system and must define threshold levels and triggers for the alerts.
Match the Administrator's portlet to the correct use definition.
(Each answer is used once.)

Answer:

Explanation:

NEW QUESTION # 37
An Administrator manages a Vantage system that is continually updated. The system is critical to the business and must be available as much as possible. The Administrator decides to use a backup strategy that will allow changes to tables while a backup is in progress.
Which backup strategy should be used?

A. Online
B. Offline
C. Skip statistics
D. Dictionary Only

Answer: A

Explanation:
An Online backup strategy allows the database to remain accessible and operational while the backup is taking place. This means that users can continue to modify data, and the system can remain available without requiring downtime. It is a common approach for mission-critical systems that need to maximize uptime.
Offline would require the system or certain tables to be unavailable during the backup process, which is not suitable for a system that needs to remain available.
Skip statistics refers to skipping the backup of statistics on database objects and does not relate to whether the system can be updated during the backup.
Dictionary Only involves backing up only the system catalog or dictionary data, not the actual table data, and would not fulfill the requirement of a comprehensive backup while allowing updates.

NEW QUESTION # 38
The Administrator has received a request to add SELECT rights on the BusinessViews database to end users, developers, and batch accounts in the accounting unit. The following roles are set up for each group:

The Administrator created the AcctShared role and will use it in a role nesting strategy to provide the required access.
Which actions can the Administrator take to fulfill this request?

A. Grant SELECT on AcctShared to BusinessViews, then grant AcctUsers, AcctDev, and AcctBatch to AcctShared.
B. Grant SELECT on BusinessViews to AcctShared, then grant AcctShared to AcctUsers. AcctDev, and AcctBatch.
C. Grant SELECT on AcctShared to BusinessViews, then grant AcctShared to AcctUsers. AcctDev, and AcctBatch.
D. Grant SELECT on BusinessViews to AcctShared, then grant AcctUsers, AcctDev, and AcctBatch to AcctShared.

Answer: B

Explanation:
The AcctShared role should be granted SELECT access on the BusinessViews database. This ensures that the role itself has the necessary privileges.
Then, you can nest this role by granting AcctShared to the individual roles of AcctUsers, AcctDev, and AcctBatch. This role nesting strategy allows the users in these groups to inherit the permissions from AcctShared without having to directly grant the privileges to each individual role.
This approach maintains a clean and efficient permission structure using role nesting.

NEW QUESTION # 39
A customer is complaining that the creation of a large table in the lab environment is getting stuck in the merge step. The customer is using the following command to create the table:
CREATE TABLE ... AS (SELECT * ...) WITH DATA
Which recommendation will help the merge step?

A. The table should be created with "CREATE TABLE ... AS (SELECT *...) WITH NO DATA", and afterwards, "INSERT ... SELECT *" should be used to fill the table.
B. Users of the lab may have lower priority than other workloads, so the creation of the table should be moved to off-peak hours.
C. The MERGEBLOCKRATIO should be specified for the table to improve the data block merge operation.
D. A column that provides good distribution should be specified as PRIMARY INDEX.

Answer: A

Explanation:
Merge step issues often occur when a large amount of data is being processed during the table creation, especially if the system is trying to simultaneously create the table and insert data.
By using "WITH NO DATA", the table structure is created first, without the actual data being inserted during the table creation process. The *"INSERT ... SELECT " command can then be used afterwards to populate the table in a more controlled way, reducing the load on the system during the creation phase and potentially improving the efficiency of the merge step.
Specifying a good distribution for the primary index can help overall performance, but it doesn't directly address the issue with the merge step in this scenario.
Specifying the MERGEBLOCKRATIO isn't typically a solution for this specific problem; the merge block ratio is more about the optimization of data block merges rather than the creation of tables.
Moving the creation to off-peak hours may help if the environment is busy, but it doesn't directly address the core issue of the merge step getting stuck.

NEW QUESTION # 40
After a recent migration, a request has started to take significant time to complete. Upon a detailed investigation of the EXPLAIN plan, it is found that an accidental unconstrained product join on a very uniformly-distributed large table was the prime reason for the issue. The Administrator needs to use workload management to detect when this request is running.
Which criteria should the Administrator select for this issue?

A. CPU Utilization
B. CPU Skew
C. AWT Wait Time
D. CPU Disk Ratio

Answer: B

Explanation:
CPU Skew is a metric that measures the uneven distribution of CPU usage across AMPs (Access Module Processors). In the case of an accidental unconstrained product join on a large, uniformly distributed table, certain AMPs may handle significantly more work than others, leading to high CPU Skew. This skew occurs because the product join results in an inefficient execution plan, where data from the large table is unnecessarily compared row-by-row with another table.
Option A (AWT Wait Time) refers to the time queries spend waiting for available AMP Worker Tasks, but it is not directly related to detecting the inefficiencies caused by product joins.
Option C (CPU Disk Ratio) measures the relationship between CPU usage and disk I/O. While it could indicate inefficiency, it doesn't directly pinpoint product join issues like CPU Skew does.
Option D (CPU Utilization) reflects overall CPU usage but doesn't indicate imbalance across AMPs, which is critical for detecting issues like product joins.

NEW QUESTION # 41
......

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Latest TDVAN5 Test Preparation - Valid TDVAN5 Exam Syllabus

TDVAN5 valid exam cram & TDVAN5 training pdf torrent & TDVAN5 actual test dumps

TeraData TDVAN5 Exam Syllabus Topics:

TeraData HCIA-Datacom V1.0 Sample Questions (Q36-Q41):

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