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NEW QUESTION # 45
Which description accurately characterizes the use of external authentication for Vantage?
Answer: D
Explanation:
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.
NEW QUESTION # 46
An Administrator has set up security constraints on columns holding sensitive data through the use of profiles. A user, with an appropriate profile, then issues a select against this sensitive data.
Which type of privilege is being used?
Answer: C
Explanation:
Inherited privileges are those that a user acquires based on their membership in a profile or role. In this case, the user has been assigned a profile that grants access to sensitive data, meaning the privilege to access that data is inherited through the profile.
Option B (Ownership) refers to the privileges that the creator (owner) of a database object has over that object, but in this case, the user is accessing data through a profile, not ownership.
Option C (Automatic) would suggest that the privilege is granted automatically without the need for an explicit assignment or inheritance, which doesn't apply here because the privileges are coming from a profile.
Option D (Assigned) refers to direct privileges granted to a user individually, but in this scenario, the user is accessing data through a profile, which means the privileges are inherited rather than directly assigned.
NEW QUESTION # 47
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 # 48
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: C
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 # 49
There is a call center application that repetitively sends tactical queries to Vantage These queries use a few small tables that are joined on the primary index column.
The following maps are defined in the system:
* TD_GlobalMap
* TD_Map1
* TD_DataDictionaryMap
* TD_1AmpSparseMap_1Node
What can be done to optimize these queries?
Answer: A
Explanation:
Example:
TD_1AmpSparseMap_1Node is a sparse map that assigns the data to a single AMP (or a few AMPs), and using the same colocation name ensures that the tables are collocated on the same AMP. This helps in efficient joining because no data redistribution is required between AMPs when tables are joined on the primary index.
Using different colocation names for each table (options A and D) would place the tables on different AMPs, leading to less efficient joins since data would need to be shuffled between AMPs.
TD_Map1 is a predefined map in the system but does not specifically optimize small, frequently accessed tables in the same way that TD_1AmpSparseMap_1Node does, which is more suitable for these scenarios.
Thus, using the same colocation name within the TD_1AmpSparseMap_1Node ensures that the joins are AMP-local, optimizing the repetitive tactical queries.
NEW QUESTION # 50
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