Exam (elaborations)
2024 AWS SOLUTIONS ARCHITECT (DATABASES) EXAM WITH CORRECT ANSWERS
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2024 AWS SOLUTIONS ARCHITECT (DATABASES) EXAM WITH CORRECT ANSWERS
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2024 AWS SOLUTIONS ARCHITECT(DATABASES) EXAM WITH
CORRECT ANSWERS
Simple querying, selecting or retrieving data, simple data manipulations.
Amazon RDS could be used for this purpose - CORRECT-ANSWERSOnline
Transaction Processing (OLTP)
Manipulation of information to create business intelligence in support of
strategic decision making; it could used for data warehousing; it pulls lots of
records, queries, used to determine data trends and make predictions.
Amazon Redshift and Elasticache could be used for this. - CORRECT-
ANSWERSOnline Analytical Processing (OLAP)
What are serverless AWS DB solutions? - CORRECT-ANSWERSSolution:
Aurora
What are relational database Amazon DB solutions? - CORRECT-
ANSWERSSolution: RDS, Redshift
What are NOSQL Amazon DB solutions? - CORRECT-ANSWERSSolution:
DynamoDB
Fully managed, highly available, in-memory cache for DynamoDB that
delivers up to 1-x performance improvement. Use case would be to improve
write performance and to prepare for shutouts as it provides fail-over to
another AZ. - CORRECT-ANSWERSDynamoDB Accelerator (DAX)
The grouping of multiple actions together. - CORRECT-ANSWERSTransaction
Used for new product launches; offers pay-per-request pricing to balance
cost and performance. There is no charge for read/write but you pay more
per request than with provisioned capacity. - CORRECT-ANSWERSOn-
Demand Capacity
Protects against accidental writes or deletes, restores to any moment in the
last 35 days, incremental backups, must be enabled, latest restorable
timestamp is 5 minutes in the past. - CORRECT-ANSWERSPoint-in-Time
Recovery (PITR)
, A time-ordered sequence of item-level changes in a table which contain of
stream records and shards. - CORRECT-ANSWERSStreams
Used to manage multi-master, multi-region replication based on DynamoDB
streams. - CORRECT-ANSWERSGlobal Tables
A cloud web service that helps in the migration of data from one data source
to another. It is used to migrate your data into the AWS Cloud, between on-
prem, instances (through an AWS Cloud setup), or between combinations of
cloud and on-prem setups. - CORRECT-ANSWERSDatabase Migration Service
(DMS)
Name (6) security measures for AWS Databases. (Solution:) - CORRECT-
ANSWERSSolution: Encryption at rest using KMS, Site-to-site VPN, Direct
Connect (DX), IAM policies and roles, Cloudwatch and CloudTrail, VPC
Endpoints.
What are (4) services that have caching capabilities? (Solution:) - CORRECT-
ANSWERSSolution: CloudFront, API Gateway, ElastiCache, Dynamo DB
Accelerator
The industry-leading cloud big data platform for processing vast amounts of
data using open-source tools such as Apache Spark, Apache Hive, Apache
HBase, Apache Flink, Apache Hudi, and Presto. - CORRECT-ANSWERSAmazon
Elastic MapReduce (EMR)
Collection of EC2 Instances - CORRECT-ANSWERSCluster
A node that manages the cluster by tracking the status of tasks and monitors
the health of the cluster. - CORRECT-ANSWERSMaster node
A node with software components that runs tasks and stores data in the
Hadoop Distributed File (HDFS) on your cluster. - CORRECT-ANSWERSCore
node
A node with software components that only runs tasks and does not store
data in HDFS. - CORRECT-ANSWERSTask node
What happens if there is an outage and you need the log data in the master
node to persist, what do you do? (Solution:) - CORRECT-ANSWERSSolution:
Configure a cluster to periodically archive log files stored on the master node
to Amazon S3
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