ExamGecko
Search Search Login
Home Home / Amazon / DBS-C01
Question list
Search
Search

List of questions

Search
Open VPLUS File
Convert VPLUS to PDF

Related questions

An ecommerce company uses Amazon DynamoDB as the backend for its payments system. A new regulation requires the company to log all data access requests for financial audits. For this purpose, the company plans to use AWS logging and save logs to Amazon S3 How can a database specialist activate logging on the database?
A retail company uses Amazon Redshift Spectrum to run complex analytical queries on objects that are stored in an Amazon S3 bucket. The objects are joined with multiple dimension tables that are stored in an Amazon Redshift database. The company uses the database to create monthly and quarterly aggregated reports. Users who attempt to run queries are reporting the following error message: error: Spectrum Scan Error: Access throttled Which solution will resolve this error?
A company is about to launch a new product, and test databases must be re-created from production dat a. The company runs its production databases on an Amazon Aurora MySQL DB cluster. A Database Specialist needs to deploy a solution to create these test databases as quickly as possible with the least amount of administrative effort. What should the Database Specialist do to meet these requirements?
A company is due for renewing its database license. The company wants to migrate its 80 TB transactional database system from on-premises to the AWS Cloud. The migration should incur the least possible downtime on the downstream database applications. The company’s network infrastructure has limited network bandwidth that is shared with other applications. Which solution should a database specialist use for a timely migration?
A marketing company is developing an application to track responses to email message campaigns. The company needs a database storage solution that is optimized to work with highly connected dat a. The database needs to limit connections and programmatic access to the data by using IAM policies. Which solution will meet these requirements?
An online bookstore uses Amazon Aurora MySQL as its backend database. After the online bookstore added a popular book to the online catalog, customers began reporting intermittent timeouts on the checkout page. A database specialist determined that increased load was causing locking contention on the database. The database specialist wants to automatically detect and diagnose database performance issues and to resolve bottlenecks faster. Which solution will meet these requirements?
A global digital advertising company captures browsing metadata to contextually display relevant images, pages, and links to targeted users. A single page load can generate multiple events that need to be stored individually. The maximum size of an event is 200 KB and the average size is 10 KB. Each page load must query the user’s browsing history to provide targeting recommendations. The advertising company expects over 1 billion page visits per day from users in the United States, Europe, Hong Kong, and Indi a. The structure of the metadata varies depending on the event. Additionally, the browsing metadata must be written and read with very low latency to ensure a good viewing experience for the users. Which database solution meets these requirements?
A company wants to migrate its existing on-premises Oracle database to Amazon Aurora PostgreSQL. The migration must be completed with minimal downtime using AWS DMS. A Database Specialist must validate that the data was migrated accurately from the source to the target before the cutover. The migration must have minimal impact on the performance of the source database. Which approach will MOST effectively meet these requirements?
A Database Specialist is setting up a new Amazon Aurora DB cluster with one primary instance and three Aurora Replicas for a highly intensive, business-critical application. The Aurora DB cluster has one medium- sized primary instance, one large-sized replica, and two medium sized replicas. The Database Specialist did not assign a promotion tier to the replicas. In the event of a primary failure, what will occur?
A company maintains several databases using Amazon RDS for MySQL and PostgreSQL. Each RDS database generates log files with retention periods set to their default values. The company has now mandated that database logs be maintained for up to 90 days in a centralized repository to facilitate real-time and after- the-fact analyses. What should a Database Specialist do to meet these requirements with minimal effort?

Question 283 - DBS-C01 discussion

Report
Export

A company runs online transaction processing (OLTP) workloads on an Amazon RDS for PostgreSQL Multi-AZ DB instance. The company recently conducted tests on the database after business hours, and the tests generated additional database logs. As a result, free storage of the DB instance is low and is expected to be exhausted in 2 days.

The company wants to recover the free storage that the additional logs consumed. The solution must not result in downtime for the database.

Which solution will meet these requirements?

A.
Modify the rds.log_retention_period parameter to 0. Reboot the DB instance to save the changes.
Answers
A.
Modify the rds.log_retention_period parameter to 0. Reboot the DB instance to save the changes.
B.
Modify the rds.log_retention_period parameter to 1440. Wait up to 24 hours for database logs to be deleted.
Answers
B.
Modify the rds.log_retention_period parameter to 1440. Wait up to 24 hours for database logs to be deleted.
C.
Modify the temp file_limit parameter to a smaller value to reclaim space on the DB instance.
Answers
C.
Modify the temp file_limit parameter to a smaller value to reclaim space on the DB instance.
D.
Modify the rds.log_retention_period parameter to 1440. Reboot the DB instance to save the changes.
Answers
D.
Modify the rds.log_retention_period parameter to 1440. Reboot the DB instance to save the changes.
Suggested answer: B

Explanation:

Explanation from Amazon documents:The rds.log_retention_period parameter specifies how long your RDS for PostgreSQL DB instance keeps its log files. The default setting is 3 days (4,320 minutes), but you can set this value to anywhere from 1 day (1,440 minutes) to 7 days (10,080 minutes)123. By reducing the log retention period, you can free up storage space on your DB instance without affecting its availability or performance.To modify the rds.log_retention_period parameter, you need to use a custom DB parameter group for your RDS for PostgreSQL instance. You can modify the parameter value using the AWS Management Console, the AWS CLI, or the RDS API1. The parameter change is applied immediately, but it may take up to 24 hours for the database logs to be deleted2. Therefore, you do not need to reboot the DB instance to save the changes or to reclaim the storage space.Therefore, option B is the correct solution to meet the requirements. Option A is incorrect because setting the rds.log_retention_period parameter to 0 disables log retention and prevents you from viewing or downloading any database logs1. Rebooting the DB instance is also unnecessary and may cause downtime. Option C is incorrect because the temp file_limit parameter controls the maximum size of temporary files that a session can generate, not the size of database logs. Modifying this parameter will not reclaim any storage space on the DB instance. Option D is incorrect because rebooting the DB instance is not required to save the changes or to reclaim the storage space.

Show Answer
asked 16/09/2024
Christopher Scott
41 questions
PreviousPreviousNextNext
User
Your answer:
0 comments
Sorted by

Leave a comment first

ExamGecko

Copyright @2023 ExamGecko | All right reserved

Mail us: [email protected]
About us
Contact us
Twitter X
Facebook
Medium
Convert VPLUS to PDF
Open VPLUS files Easily and Quickly
Privacy Policy
Disclaimer
Terms