AWS Module 9 Review
What is the minimum monthly availability for DynamoDB in a single region? A. 99.99 percent B. 99.95 percent C. 99.9 percent D. 99.0 percent
A
What's the maximum amount of data you can store in a Redshift cluster when using dense storage nodes? A. 2 PB B. 326 TB C. 2 TB D. 326 PB E. 236 TB
A
Which Redshift feature can analyze structured data stored in S3? A. Redshift Spectrum B. Redshift S3 C. Amazon Athena D. Amazon RDS
A
Which of the following Relational Database Service (RDS) features can help you achieve a monthly availability of 99.95 percent? A. Multi-AZ B. Read replicas C. Point-in-time recovery D. Horizontal scaling
A
What two databases is Amazon Aurora compatible with? (Select TWO.) A. MySQL B. PostgreSQL C. MariaDB D. Oracle E. Microsoft SQL Server
A and B
What do new Relational Database Service (RDS) instances use for database storage? A. Instance volumes B. Elastic Block Store (EBS) volumes C. Snapshots D. Magnetic storage
B
What is the term for a relational database that stores large amounts of structured data from a variety of sources for reporting and analysis? A. Data storehouse B. Data warehouse C. Report cluster D. Dense storage node
B
Which RDS database engine offers automatically expanding database storage up to 64 TB? A. Microsoft SQL Server B. Amazon Aurora C. Oracle D. Amazon Athena
B
Which of the following Structured Query Language (SQL) statements can you use to write data to a relational database table? A. CREATE B. INSERT C. QUERY D. WRITE
B
Which type of Redshift node uses magnetic storage? A. Cost-optimized B. Dense compute C. Dense storage D. Dense memory
B
Which type of database stores data in columns and rows? A. Nonrelational B. Relational C. Key-value store D. Document
B
Which of the following features of Relational Database Service (RDS) can prevent data loss in the event of an Availability Zone failure? (Select TWO.) A. Read replicas B. Multi-AZ C. Snapshots D. IOPS E. Vertical scaling
B and C
What is true regarding a DynamoDB partition? (Select TWO.) A. It's stored within a table. B. It's backed by solid-state drives. C. It's a way to uniquely identify an item in a table. D. It's replicated across multiple Availability Zones.
B and D
Which of the following are database engine options for Amazon Relational Database Service (RDS)? (Select TWO.) A. IBM dBase B. PostgreSQL C. DynamoDB D. Amazon Aurora E. Redis
B and D
What is a no-SQL database? A. A nonrelational database without primary keys B. A schemaless relational database C. A schemaless nonrelational database D. A relational database with primary keys
C
Which DynamoDB operation is the most read-intensive? A. Write B. Query C. Scan D. Update
C
Which configuration parameters can you adjust to improve write performance against a DynamoDB table? (Select TWO.) A. Decrease read capacity units (RCU) B. Increase read capacity units C. Increase write capacity units (WCU) D. Decrease write capacity units E. Enable DynamoDB Auto Scaling
C and E
Which of the following statements is true regarding a DynamoDB table? A. It can store only one data type. B. When you create a table, you must define the maximum number of items that it can store. C. Items in a table can have duplicate values for the primary key. D. Items in a table don't have to have all the same attributes.
D
Which of the following statements is true regarding nonrelational databases? A. You can create only one table. B. No primary key is required. C. You can't store data with a fixed structure. D. You don't have to define all the types of data that a table can store before adding data to it.
D
Which of the following would be appropriate to use for a primary key in a DynamoDB table that stores a customer list? A. The customer's full name B. The customer's phone number C. The customer's city D. A randomly generated customer ID number
D
What two types of database compatibility options exist in RDS?
MySQL and PostgreSQL
Name the three pricing models for EC2.
On-demand, reserved, and spot
Name the three main components of the Global Infrastructure.
Regions, AZ's, and Edge Locations
What component can you use to connect your VPC to the public Internet? a. IGW b. IDS c. IPS d. NACLs
a
What is the archiving/warehousing solution within S3? a. Glacier b. Snowball c. EFS d. Aurora
a
Which of the following is a data warehouse solution in AWS? a. Redshift b. Aurora c. RDS d. ElastiCache
a
What two protocols are commonly permitted in security groups in order to permit remote administration of systems? (Choose two.) a. RDP b. ICMP c. SFTP d. SSH
a and d
A region in AWS is broken up into what construct? a. Primary and secondary data centers b. Availability Zones c. Vaults d. Pods
b
What EC2 pricing model allows you to bid on availability capacity? a. Temporary instances b. Spot instances c. Reserved instances d. On-demand instances
b
What Global Infrastructure component of AWS serves CloudFront content? a. Availability Zones b. Edge Locations c. Vaults d. Cache Centers
b
Security groups in AWS protect what resources? a. AZs b. Subnets c. EC2 instances (through ENIs) d. Vaults
c
What is a PaaS service of AWS? a. CloudFormation b. CloudFront c. Elastic Beanstalk d. RDS
c
What is a common use of EBS in AWS? a. To receive and process streaming data for IoT b. To provide serverless compute resources c. To act as the boot volume for an EC2 server instance d. To makes files available to massive numbers of users and groups
c
What service category does CloudFront fall under? a. Compute Services b. Storage c. Networking and Content Delivery d. Security, Identity, and Compliance
c
How does S3 ensure the durability of your data? a. Multiple high-speed Internet connections are made to every major directory you create. b. Data is storage-tiered by default. c. Data is automatically replicated to an alternate region. d. Multiple copies of your data are stored in separate Availability Zones.
d
What is a serverless compute service of AWS? a. Aurora b. Snowball c. Glacier d. Lambda
d
Where can you place your resources in a VPC to help ensure high availability? a. Different regions b. Different root accounts c. Different storage tiers d. Different AZs
d
Which AWS database is a NoSQL database solution often being used with the IoT? a. Aurora b. Glacier c. Snowball d. DynamoDB
d