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TeraData TDVAN5 Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

Integration: This section tests the skills of database administrators in utilizing integration tools like QueryGrid and NOS. It covers the benefits, features, and functionality of QueryGrid, the database objects supporting its implementation, and the performance implications of accessing NOS and foreign servers.

Topic 3

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 4

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.

Topic 5

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.

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TeraData HCIA-Datacom V1.0 Sample Questions (Q57-Q62):

NEW QUESTION # 57
Which compression format is supported by NOS?

A. BZIP
B. ZLIB
C. Snappy
D. ORC

Answer: C

Explanation:
NOS (Native Object Store) supports data compression formats such as Snappy for efficient storage and retrieval of data.
ORC (Optimized Row Columnar) is a file format, not a compression format.
ZLIB is a compression library but is not the primary format used in NOS.
BZIP is a compression format, but it is not widely supported by NOS compared to Snappy.

NEW QUESTION # 58
An Administrator has been tasked with analyzing previous growth and usage patterns by utilities such as Multiload and FastLoad. The aim is to project the likely resource requirements of the existing loads in the next three to six months.
In the last month, the Administrator team have started using AccountString expansion on all user accounts and have started maintenance jobs to housekeep system data older than seven years. Two years ago, the following command was issued on the system:
BEGIN QUERY LOGGING WITH ALL ON ALL;
No other logging commands have been issued.
Which view contains the utility usage data for the prior months?

A. AMPUsageV
B. LogOnOffV
C. QryLogUtilityV
D. QryLogV

Answer: C

Explanation:
QryLogUtilityV is a specific DBQL (Database Query Logging) view that provides information about utility usage (such as Multiload and FastLoad) on the system. Since the BEGIN QUERY LOGGING WITH ALL ON ALL command was issued two years ago, the DBQL (Database Query Logging) has been tracking various events, including utility usage, which is stored in QryLogUtilityV.
Option A (AMPUsageV) contains AMP (Access Module Processor) level statistics and usage data but not detailed information about utility jobs.
Option B (LogOnOffV) tracks user logon and logoff activities but does not provide information about utility usage.
Option D (QryLogV) logs general query execution data but is not specifically focused on utility usage.

NEW QUESTION # 59
An application is consuming very high I/O on Teradata Vantage. The Administrator has been asked to identify the queries that are consuming more than 100 million IOs and are suspected of completing Full Table Scans or Large Redistribution.
Which metrics should be examined for high values to identify the queries?

A. TOTALIOCOUNT and PJI
B. I/O SKEW % and UII
C. MAXAMPIO and PJI
D. REQPHYSIO and UII

Answer: A

Explanation:
TOTALIOCOUNT represents the total number of I/O operations a query performs, which is crucial when trying to identify queries consuming excessive I/O (in this case, more than 100 million IOs). This directly indicates the amount of I/O a query is generating.
PJI (Product Join Index) measures whether a product join is being performed in the query, which is often associated with inefficient joins that result in large redistributions of data. A high PJI value indicates that the query might be performing a product join, leading to a significant performance hit due to large redistributions.
Option A (MAXAMPIO and PJI): MAXAMPIO refers to the maximum I/O performed by a single AMP, but TOTALIOCOUNT is a more direct indicator of the total I/O performed by a query across all AMPs.
Option C (I/O SKEW % and UII): I/O SKEW % indicates uneven distribution of I/O, which can cause performance issues, but it does not directly measure the total I/O consumption like TOTALIOCOUNT does. UII (Utility Impact Index) is relevant but not as important for identifying large I/O queries.
Option D (REQPHYSIO and UII): REQPHYSIO refers to the number of physical I/Os, but it is not as comprehensive as TOTALIOCOUNT, which includes both logical and physical I/O.
Thus, TOTALIOCOUNT (for total I/O) and PJI (to detect potential large redistributions due to product joins) are the key metrics to identify queries with high I/O and large redistributions.

NEW QUESTION # 60
Which spool threshold can an Administrator set to define workload management exception criteria?

A. Maximum Spool Rows
B. Max Spool Space By AMP
C. Hot AMP Spool
D. Spool Skew

Answer: D

Explanation:
Spool Skew is a threshold that an Administrator can set in workload management to detect and manage uneven distribution of spool space usage across AMPs (Access Module Processors). When spool skew exceeds a certain threshold, it can trigger exception handling or corrective actions, helping to prevent performance degradation caused by unbalanced resource utilization.
The other options are less commonly used for defining workload management exception criteria:
Maximum Spool Rows: This is not a standard threshold for workload management.
Hot AMP Spool: While this refers to uneven spool space usage on a specific AMP, spool skew is the more appropriate term and metric used for setting thresholds.
Max Spool Space By AMP: This isn't a standard workload management threshold. Spool space limits are generally applied system-wide or per user, not by AMP.

NEW QUESTION # 61
An Administrator needs to perform a cleanup task on the LOAD_ISOLATED table Employee_Address, which has grown in size.
Which lock is placed on the table when the Administrator performs clean up of the logically deleted rows?

A. IREAD
B. WRITE
C. ROW ACCESS
D. EXCLUSIVE

Answer: B

Explanation:
When performing cleanup tasks such as deleting logically deleted rows, the WRITE lock is typically applied. This lock ensures that the Administrator can modify the data in the table (such as removing logically deleted rows) while preventing other users from accessing the table for write operations. However, it allows other users to read from the table.
Other lock types:
ROW ACCESS allows reading specific rows without blocking other access, which is not suitable for cleanup tasks.
EXCLUSIVE locks the entire table for both reading and writing, which is generally too restrictive for this kind of operation.
READ only allows read access and does not permit any modifications, which would prevent the cleanup task from being performed.

NEW QUESTION # 62
......

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