DVA-C01 Free Practice Test

An orgAMzation is having an application which can start and stop an EC2 instance as per schedule. The orgAMzation needs the MAC address of the instance to be registered with its software. The instance is launched in EC2-CLASSIC. How can the orgAMzation update the MAC registration every time an instance is booted?

1. A. The instance MAC address never change
2. B. Thus, it is not required to register the MAC address every time.
3. C. The orgAMzation should write a boot strapping script which will get the MAC address from the instance metadata and use that script to register with the application.
4. D. AWS never provides a MAC address to an instance; instead the instance ID is used for identifying the instance for any software registration.
5. E. The orgAMzation should provide a MAC address as a part of the user dat
6. F. Thus, whenever the instance is booted the script assigns the fixed MAC address to that instance.

Correct Answer: B
AWS provides an on demand, scalable infrastructure. AWS EC2 allows the user to launch On-Demand instances. AWS does not provide a fixed MAC address to the instances launched in EC2-CLASSIC. If the instance is launched as a part of EC2-VPC, it can have an ENI which can have a fixed MAC. However, with EC2-CLASSIC, every time the instance is started or stopped it will have a new MAC address.
To get this MAC, the orgAMzation can run a script on boot which can fetch the instance metadata and get the MAC address from that instance metadata. Once the MAC is received, the orgAMzation can register that MAC with the software.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/AESDG-chapter-instancedata.html

A startup s photo-sharing site is deployed in a VPC. An ELB distributes web traffic across two subnets. ELB session stickiness is configured to use the AWS-generated session cookie, with a session TTL of 5 minutes. The webserver Auto Scaling Group is configured as: min-size=4, max-size=4.
The startups preparing for a public launch, by running load-testing software installed on a single EC2 instance running in us-west-2a. After 60 minutes of load-testing, the webserver logs show:
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1. A. Launch and run the load-tester EC2 instance from us-east-1 instead.
2. B. Re-configure the load-testing software to re-resolve DNS for each web request.
3. C. Use a 3rd-party load-testing service which offers globally-distributed test clients.
4. D. Configure ELB and Auto Scaling to distribute across us-west-2a and us-west-2c.
5. E. Configure ELB session stickiness to use the app-specific session cooki

Correct Answer: BE

ExamKiIIer (with AWS account ID H1122223333) has created 50 IAM users for its orgAMzation’s employees. ExamKiI|er wants to make the AWS console login URL for all IAM users like: https://examki||er.signin.aws.amazon.com/consoIe/. How can this be configured?

1. A. The user needs to use Route 53 to map the examkiller domain and IAM URL
2. B. Create an IAM AWS account alias with the name examkiller
3. C. It is not possible to have a personalized IAM login URL
4. D. Create an IAM hosted zone Identity for the domain examkiller

Correct Answer: B
If a user wants the URL of the AWS IAM sign-in page to have a company name instead of the AWS account ID, he can create an alias for his AWS account ID.
Reference: http://docs.aws.amazon.com/IAM/latest/UserGuide/AccountAIias.html

A user is trying to find the state of an S3 bucket with respect to versioning. Which of the below mentioned states AWS will not return when queried?

1. A. versioning-enabled
2. B. versioning-suspended
3. C. unversioned
4. D. versioned

Correct Answer: D
S3 buckets can be in one of the three states: unversioned (the default), versioning-enabled or versioning-suspended. The bucket owner can configure the versioning state of a bucket. The versioning state applies to all (never some) of the objects in that bucket. The first time owner enables a bucket for versioning, objects in it are thereafter always versioned and given a unique version ID.
Reference: http://docs.aws.amazon.com/AmazonS3/Iatest/dev/Versioning.htmI

Which of the following services are included at no additional cost with the use of the AWS platform? Choose 2 answers

1. A. Simple Storage Service
2. B. Elastic Compute Cloud
3. C. Auto Scaling
4. D. Elastic Load Balancing
5. E. CIoudFormation
6. F. Simple Workflow Service

Correct Answer: CE