AWS Certified Solutions Architect – Associate Questions and Answers (Dumps and Practice Questions)
Question : Which of the following requires a custom CloudWatch metric to monitor?
1. Data transfer of an EC2 instance
2. Disk usage activity of an EC2 instance
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4. CPU Utilization of an EC2 instance
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Explanation: However, there's one big missing feature in CloudWatch: it doesn't monitor your instance memory utilization. I suppose Amazon has all sorts of
technical reasons not to provide this very important metric out of the box (probably related to the fact that their monitoring is done from outside the
instance VM), but really if you need to monitor servers, in addition to CPU load and IO, memory utilization is one of the most important metrics to be aware
of.
So, with a little bit of research I've found some scripts that utilize the CloudWatch API to send memory utilization info as a custom metric to AWS. However,
most of these scripts require that you provide some kind of credentials (API keys) and I feel really uncomfortable storing and managing API keys on all sorts
of different machines, even with automation tools like Chef. The less I have to do it, the better. Amazon has a pretty nice answer for that - IAM Roles which
allow to authorize access to specific AWS services (including S3 and CloudWatch) on an EC2 instance basis. Since we want all instances to be able to do
certain things (like send their own metrics to CloudWatch or access our EC2 hosted private DEB repo), all our EC2 servers get some permissions via IAM roles.
But I couldn't find any solution that supports IAM roles and does the job right.
Question : A company has a workflow that sends video files from their on-premise system to AWS for transcoding.
They use EC2 worker instances that pull transcoding jobs from SQS. Why is SQS an appropriate service for this scenario?
1. SQS guarantees the order of the messages.
2. SQS synchronously provides transcoding output.
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4. SQS helps to facilitate horizontal scaling of encoding tasks.
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SQS Never guaranteed the order of message , hence A is out
Explanation: Amazon Simple Queue Service (Amazon SQS) is a scalable message queuing system that stores messages as they travel between various components of your
application architecture. Amazon SQS enables web service applications to quickly and reliably queue messages that are generated by one component and consumed
by another component. A queue is a temporary repository for messages that are awaiting processing. For more information about Amazon SQS, see the Amazon
Simple Queue Service Developer Guide.
For example, suppose that you have a web app that receives orders from customers. The app runs on EC instances in an Auto Scaling group that is configured to
handle a typical amount of orders. The app places the orders in an Amazon SQS queue until they are picked up for processing, processes the orders, and then
sends the processed orders back to the customer
Question : How can the domain's zone apex, for example, "myzoneapexdomain.com", be pointed
towards an Elastic Load Balancer?
1. By using an Amazon Route 53 Alias record
2. By using an AAAA record
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4. By using an A record
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Explanation: A Format
An A record Value element must take the format of an IPv4 address in dotted decimal notation.
Example
AAAA Format
An AAAA record Value element must take the format of an IPv6 address, in colon-separated hexadecimal format.
Example
CNAME Format
A CNAME Value element is the same format as a domain name.
Important
The DNS protocol does not allow you to create a CNAME record for the top node of a DNS namespace, also known as the zone apex. For example, if you register
the DNS name example.com, the zone apex is example.com. You cannot create a CNAME record for example.com, but you can create CNAME records for
www.example.com, newproduct.example.com, and so on.
In addition, if you create a CNAME record for a subdomain, you cannot create any other resource record sets for that subdomain. For example, if you create a
CNAME for www.example.com, you cannot create any other resource record sets for which the value of the Name field is www.example.com.
Amazon Route 53 also supports alias resource record sets, which allow you to route queries to a CloudFront distribution, an ELB load balancer, an Amazon S3
bucket that is configured as a static website, or another Amazon Route 53 resource record set. Aliases are similar in some ways to the CNAME resource record
type; however, you can create an alias for the zone apex. For more information, see Choosing Between Alias and Non-Alias Resource Record Sets.
Example
Related Questions
Question :
In regard to DynamoDB actions, which of the following statement is the meaning of HTTP Status Code: 403?
1. The request was denied due to request throttling.
2. The AWS access key ID needs a subscription for the service.
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4. The query string contains a syntax error.
Question :
How many Elastic Network Interfaces and IP addresses can be attached to a singe EC2 instance running in VPC?
1. It depends on the instance type. However, the maximum number of network interfaces that can be attached to the largest instance is 8.
2. The maximum number of network interfaces that can be attached to any instance is 8.
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4. It depends on the instance type. However, the maximum number of network interfaces that can be attached to the largest instance is 6.
Question :
If you're using the command line tools or API to set up your VPC, ______ .
1. the wizard will prompt you to close it and reopen when you try this for the first time
2. the wizard automatically updates the route tables to use the gateway
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4. None of the above
Question :
In regards to VPC, select the correct statement:
1. A customer gateway can be a physical or software appliance.
2. A customer gateway should be a software appliance not a physical one
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4. None of these
Question :
What could be the minimum duration between two data points when filtering the CloudWatch metrics based on the statistics?
1. 1 minute
2. 5 minutes
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4. 1 day
Question :
Can SWF tasks be long running?
1. Yes
2. Amazon SWF doesn't support "long running" tasks.
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4. No