AWS Dev Assoc. 6
When can you add a Global Secondary Index to a table? Choose the correct answer from the options below.
Anytime if it is a global index
How is the coordination between worker processes done in SWF? Choose the correct answer from the options below.
By writing a program called the decider
What are the API's available for DynamoDB? Choose 3 answers from the options below
1) Create Table 2) Update Table 3) Update Item
How many secondary indexes are allowed per DynamoDB table? Choose the correct answer from the options below.
10
What is the maximum number of SWF domains allowed in an AWS account? Choose the correct answer from the options below.
100
What is the smallest amount of reserved capacity that can be purchased for DynamoDB? Choose an answer from the options below
100
Company B has a DynamoDB table where the average item size is 10KB. Company B anticipates the application will read 100 items from the table per second using eventually consistent reads. How much read capacity throughput should they provision? Choose the correct answer from the options below.
150
Company B is writing 10 items to the products table every second. Each item is 15.5Kb in size. What would be the required provisioned write throughput for best performance? Choose the correct answer from the options below.
160
Company B is using strongly consistent reads to request 50 items per second from their customer table. Each item is 20KB in size. What throughout would be required to efficiently handle the read throughput of the table ?
250
When a subscriber subscribes to a topic in SNS, what is the time period available for confirmation? Choose one answer from the options below
3 days
What is the maximum size of an item in DynamoDB? Choose an answer from the options below
400KB
What is the primary difference between a global secondary index and a local secondary index? Choose the correct answer from the options below.
A local secondary index has the same partition key as the primary key and the global secondary index can have different partition and sort key
Company B has many users updating the same table. At times it is not uncommon for multiple users to update the same item and attribute of an item at the same time. If user A calls an item in a table to update an attribute at the same time as user B and user B updates the table first, what can we deploy in DynamoDB to ensure User A is not updating an item that was updated since User A's table read? Choose the correct answer from the options below.
Conditional Writes
In SWF what are the containers called for segregating application resources. Choose the correct answer from the options below.
Domains
You can define up to 5 local secondary indexes and 5 global secondary indexes per table. How can you increase your DynamoDB secondary indexes limit in a region?
DynamoDB does not allow secondary index limit increase
The following code snippet is the resources section of a CloudFormation template that you have written. "InstanceType" : { "Ref" : "InstanceType" }
From the parameters section of your CloudFormation template.
What is the key feature of SWF? Choose the correct answer from the options below.
Guarantees delivery order of messages/tasks
Which of the following is not a benefit of a query over a scan? Choose the correct answer from the options below.
It does not do consistent reads
The following code snippet is the parameters section of a CloudFormation template that you have written. "AWS::EC2::KeyPair::KeyName"
It will ask you to provide the name of an existing EC2 KeyPair to use.
Of the 6 available sections on a CloudFormation template (Template Description Declaration, Template Format Version Declaration, Parameters, Resources, Mappings, Outputs), which is the only one required for a CloudFormation template to be accepted? Choose an answer from the options below
Resources
fn:GetAtt is used on a CloudFormation template to: Choose an answer from the options below
Return the value of an attribute from a resource on the template
What is the default behavior of a CloudFormation stack if creation fails? Choose the correct answers from the options below
Rollback
Can Cloudformation be used with Chef and Puppet? Choose the correct answer from the options below
True
Can software be installed at stack launching process in Cloudformation? Choose the correct answer from the option below
True
Does AWS CloudFormation assume default template version if one is not explicitly mentioned in a CloudFormation template?
True
Does SNS guarantee message delivery to SQS? Choose one answer from the options below
True
SQS guarantees delivery but there can be duplicates. Choose the correct answer from the options below.
True
What is one of the major use cases for using SWF? Choose the correct answer from the options below.
Video Editing