Free PDF 2025 TDVAN5: HCIA-Datacom V1.0–The Best Free Exam Questions
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TeraData HCIA-Datacom V1.0 Sample Questions (Q63-Q68):
NEW QUESTION # 63
An Administrator manages a Vantage system that experiences large loads and updates during the night, on weekdays. On Saturday night, significant analytical processing occurs using the data from the prior weeks. The results of this processing are saved to support rapid reporting in the following week.
The business requires this Vantage system to be available as soon as possible in case of a catastrophic system failure.
Which backup strategy meets this need?
Answer: D
Explanation:
This strategy strikes a balance between minimizing recovery time and reducing the overall storage and performance impact during backups.
Weekly full backup ensures that a complete copy of the data is available at the start of the week, which is critical for quick recovery in the event of a catastrophic system failure.
Cumulative backups on Tuesday and Friday ensure that any changes made since the last full backup are captured without needing to apply multiple delta backups, reducing the time required for restoration.
Delta backups on other days provide incremental backups of the system with minimal performance impact, ensuring the system is consistently backed up without using excessive resources.
NEW QUESTION # 64
Which benefit is achieved by creating profiles?
Answer: B
Explanation:
Profiles in Teradata are used to manage and enforce resource limits for groups of users. This includes defining spool space, temporary space, and permanent space for users who share similar needs. Spool space is important for query processing, and managing it by profile helps prevent individual users from consuming excessive resources and ensures better overall system performance.
Reducing the growth of the DBC.AccessRights table is not directly related to profiles. Profiles do not reduce access rights or the growth of this table, which tracks individual user privileges.
Managing user privileges on database objects is handled through roles and grants, not profiles. Profiles focus on resource management, not privileges.
Assigning permanent space for groups of users is partially true since profiles can manage some space attributes, but the main focus of profiles is on managing spool space rather than permanent space.
NEW QUESTION # 65
A Vantage customer is using the Hive Connector in QueryGrid to access a foreign server and push the processing onto the Hadoop Cluster. The Vantage Administrator is concerned about the performance implication of the temporary space that is consumed by these queries during execution.
What must the Vantage Administrator investigate?
Answer: A
Explanation:
When using the Hive Connector in QueryGrid to push processing onto a Hadoop cluster, queries generate temporary data that consumes spool space on the Vantage system. The temporary database name defined on the link is where this temporary data is stored during execution.
The administrator should focus on investigating the spool space allocations and configurations related to the QueryGrid link because this directly impacts performance, especially when managing large datasets or complex queries.
The other options are less relevant:
Perm space assigned to the user is not directly related to the temporary space used during query execution.
The default temporary NOS location pertains to object storage and is unrelated to Hadoop or QueryGrid processing.
Temp space assigned to the Teradata user is also less relevant, as the spool space and the QueryGrid link are the primary concerns for temporary space usage in this scenario.
NEW QUESTION # 66
An Administrator notices that a system appears to be near capacity and needs to access a dictionary to assess that AMPs are entering into flow control.
Which dictionary should be accessed for this purpose?
Answer: B
Explanation:
The DBC.ResUsageSawt view provides detailed information about the resource usage of AMP Worker Tasks (AWTs), including whether AMPs are experiencing flow control. Flow control occurs when AMPs are overwhelmed and need to throttle the workload, and this view tracks metrics related to AWT usage and system resource contention, which would indicate when AMPs are under strain.
Option A (DBC.SessionInfoV) provides information about current user sessions but does not provide insights into AMP-level flow control or resource usage.
Option C (DBC.AMPUsage) provides general statistics about AMP usage but doesn't give detailed information about flow control or AWT usage.
Option D (DBC.ResUsageSldv) tracks statistics related to logical disk usage but isn't focused on AMP flow control.
NEW QUESTION # 67
A client is having many problems with a poorly written SQL. They have product joins running against large tables, and this is causing severe performance issues. The Administrator needs to help the client avoid the harm to the system that is being caused by running these queries.
Which action should be taken by the Administrator to assist this client?
Answer: C
Explanation:
Teradata Active System Management (TASM) allows the system administrator to control and manage query workload in real-time. A TASM system filter can be used to prevent or deprioritize certain types of queries, such as product joins or poorly written queries, that are consuming excessive resources. This approach ensures that problematic queries do not harm the overall system performance.
Query Spotlight Viewpoint portlet focuses on identifying and managing individual queries but does not provide the same level of proactive filtering and control as TASM system filters.
Flex Throttle is useful for controlling the concurrency of queries, but it doesn't specifically address preventing or managing product joins in a way that would directly resolve the issue with poorly written SQL.
Query Log Viewpoint portlet would help in identifying and aborting harmful queries, but it's a reactive approach rather than a proactive solution like using TASM system filters.
NEW QUESTION # 68
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