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Given a user creation request on a 10-AMP system:
CREATE USER hr_user AS PERM = 100e9 SKEW = 10 PERCENT,
SPOOL = 100e9 SKEW = 20 PERCENT;
How does the SKEW factor affect the user's Perm space, assuming the total space consumed is under the specified perm space limit?
In the given CREATE USER statement, the SKEW = 10 PERCENT parameter applies to Perm space and allows some AMPs (Access Module Processors) to use up to 10% more space than the average allocation across the AMPs.
The user is allocated 100 GB of Perm space across a 10-AMP system, meaning the average space per AMP is 10 GB.
With a 10% skew allowed, this means that an AMP can use up to 10% more than the average allocation, which is 10 GB + 1 GB = 11 GB.
The Administrator is receiving complaints that a business application is taking a very long time to refresh the screen. After analyzing the WD-Report workload, the Administrator notices that several short select statements, with estimated processing time of less than 0.5 seconds, are waiting in the delay queue. The workload WD-Report is placed in Time Share Medium and managed by TIWM.
How should the Administrator solve this performance issue?
The select statements in the WD-Report workload are being delayed even though their processing times are short (less than 0.5 seconds), which is leading to slow screen refreshes.
By creating a new workload specifically for these short-running SELECT statements, the administrator can ensure that they are processed more quickly, without being delayed by other workloads.
Placing this new workload in Time Share TOP will give it a higher priority, ensuring these short queries are executed promptly, improving the responsiveness of the business application.
Other options are less effective because they either don't directly target the issue of short query delays (B), or may not appropriately prioritize these queries (A, C).
An Administrator has been given a task to generate a list of users who have not changed their password in the last 90 days.
Which DBC view should be used to generate this list?
DBC.USERSV contains information about users, including the passwordlastmodified column, which records the date and time the user last changed their password. By querying this view, the Administrator can identify users who have not updated their password within the specified time frame (in this case, 90 days).
Option A (DBC.LOGONOFFV) logs user logon and logoff events, but it does not track password changes.
Option C (DBC.SECURITYDEFAULTSV) contains system-wide security defaults, but it does not track individual user password activity.
Option D (DBC.ACCESSLOGV) logs access control events, like who accessed which database objects, but it doesn't track password changes either.
Therefore, DBC.USERSV is the appropriate view to use for this task.
A group of batch queries that rely on QueryGrid to source data from a cloud Vantage system has failed and requires urgent investigation.
Which Viewpoint portlet should be used to initially investigate the reason for this problem?
A group of batch queries that rely on QueryGrid to source data from a cloud Vantage system has failed and requires urgent investigation.
Which Viewpoint portlet should be used to initially investigate the reason for this problem?
The Alert Viewer portlet in Viewpoint is designed to show system alerts and failures. Since the issue is urgent and involves failed queries using QueryGrid, the Alert Viewer is the appropriate place to start the investigation. It will display any alerts or failures related to QueryGrid, system connectivity, or resource constraints, providing insight into what might have caused the batch queries to fail.
Option A (Query Spotlight) is more focused on analyzing the performance of individual queries but may not directly highlight system or connection issues related to QueryGrid failures.
Option C (Productivity) gives insights into system usage and workload management, but it's not the primary tool for troubleshooting failed queries.
Option D (Completed Queries) shows details about successfully completed queries but is not the best place to start for investigating failed queries that require urgent attention.
Which description accurately characterizes the use of external authentication for Vantage?
This is because external authentication systems like LDAP or Active Directory can supply both authentication (verifying the user's identity) and authorization (defining what the user is allowed to do) roles for users.
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