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NEW QUESTION 25
Can a user associate and use his own DNS with ELB instead of the DNS provided by AWS ELB?
- A. Yes, by creating a CNAME with the existing domain name provider
- B. No
- C. Yes, only through Route 53 by mapping ELB and DNS
- D. Yes, by configuring DNS in the AWS Console
Answer: A
Explanation:
The AWS ELB allows mapping a custom domain name with ELB. The user can map ELB with DNS in two ways: 1) By creating CNAME with the existing domain name service provider or 2) By creating a record with Route 53.
NEW QUESTION 26
You are inserting 1000 new items every second in a DynamoDB table. Once an hour these items are analyzed and then are no longer needed. You need to minimize provisioned throughput, storage, and API calls.
Given these requirements, what is the most efficient way to manage these Items after the analysis?
- A. Create a new table per hour
- B. Retain the items in a single table
- C. Delete the table and create a new table per hour
- D. Delete items individually over a 24 hour period
Answer: C
NEW QUESTION 27
A user is running a MySQL RDS instance. The user will not use the DB for the next 3 months.
How can the user save costs?
- A. Stop the RDS instance
- B. Create a snapshot of RDS to launch in the future and terminate the instance now
- C. Pause the RDS activities from CLI until it is required in the future
- D. Change the instance size to micro
Answer: B
Explanation:
The RDS instances unlike the AWS EBS backed instances cannot be stopped or paused.
The user needs to take the final snapshot, terminate the instance and launch a new instance in the future from that snapshot.
NEW QUESTION 28
A team of Developers must migrate an application running inside an AWS Elastic Beanstalk environment from a Classic Load Balancer to an Application Load Balancer.
Which steps should be taken to accomplish the task using the AWS Management Console?
- A. 1. Clone the existing environment, changing the associated load balancer type.
2. Deploy the same application version as used in the original environment.
3. Run the swap-environment-cnames action. - B. 1. Create a new environment with the same configurations except for the load balancer type.
2. Deploy the same application version as used in the original environment.
3. Run the swap-environment-cnames action. - C. 1. Update the application code in the existing deployment.
2. Select a new load balancer type before running the deployment.
3. Deploy the new version of the application code to the environment. - D. 1. Edit the environment definitions in the existing deployment.
2. Change the associated load balancer type according to the requirements.
3. Rebuild the environment with the new load balancer type.
Answer: B
Explanation:
Explanation
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.managing.elb.html By default, Elastic Beanstalk creates an Application Load Balancer for your environment when you enable load balancing with the Elastic Beanstalk console or the EB CLI. It configures the load balancer to listen for HTTP traffic on port 80 and forward this traffic to instances on the same port. You can choose the type of load balancer that your environment uses only during environment creation. Later, you can change settings to manage the behavior of your running environment's load balancer, but you can't change its type.
NEW QUESTION 29
In regard to DynamoDB, what is the Global secondary index?
- A. An index with a hash and range key that can be different from those on the table
- B. An index that has the same hash key as the table, but a different range key
- C. An index that has the same range key as the table, but a different hash key
- D. An index that has the same hash key and range key as the table
Answer: A
NEW QUESTION 30
A security engineer noticed an anomaly within a company EC2 instance as shown in the image. The engineer must now investigate what is causing the anomaly.
What are the MOST effective steps to take to ensure that the instance is not further manipulated, while allowing the engineer to understand what happened?
- A. Remove the instance from the Auto Scaling group and the Elastic Load Balancer. Place the instance within an isolation security group, launch an EC2 instance with a forensic toolkit, and allow the forensic toolkit image to connect to the suspicious instance to perform the investigation.
- B. Remove the instance from the Auto Scaling group and the Elastic Load Balancer. Place the instance within an isolation security group, make a copy of the EBS volume from a new snapshot, launch an EC2 instance with a forensic toolkit, and attach the copy of the EBS volume to investigate.
- C. Remove the instance from the Auto Scaling group. Place the instance within an isolation security group, detach the EBS volume, launch an EC2 instance with a forensic toolkit, and attach the EBS volume to investigate.
- D. Remove the instance from the Auto Scaling group. Place the instance within an isolation security group, launch an EC2 instance with a forensic toolkit, and use the forensic toolkit image to deploy an ENI as a network span port to inspect all traffic coming from the suspicious instance.
Answer: B
NEW QUESTION 31
Which DynamoDB limits can be raised by contacting AWS support? Choose 2 answers
- A. The number of tables per account
- B. The maximum storage used per account
- C. The number of local secondary indexes per account
- D. The number of hash keys per account
- E. The number of provisioned throughput units per account
Answer: A,E
Explanation:
Explanation
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Limits.html
NEW QUESTION 32
An application is running on a cluster of Amazon EC2 instance. While trying to read objects stored within a single Amazon S3 bucket that are encrypted with server-side encryption with AWS KMS managed keys (SSE-KMS), the application receives the following error:
Service : AWSKMS: Status Code: 400: Code : ThrottlingException
Which combination of steps should be taken to prevent this failure? (Select TWO.)
- A. Contact AWS Support to request an AWS KMS rate limit increase.
- B. Use more than one customer master key (CMK) to encrypt S3 data
- C. Contact AWS Support to request a S3 rate limit increase.
- D. Import a customer master key (CMK) with a larger key size.
- E. Perform error retries with exponential backoff in the application code.
Answer: A,D
NEW QUESTION 33
You attempt to store an object in the US-STANDARD region in Amazon S3, and receive a confirmation that it has been successfully stored. You then immediately make another API call and attempt to read this object. S3 tells you that the object does not exist
What could explain this behavior?
- A. You exceeded the bucket object limit, and once this limit is raised the object will be visible.
- B. Objects in Amazon S3 do not become visible until they are replicated to a second region.
- C. US-STANDARD imposes a 1 second delay before new objects are readable.
- D. US-STANDARD uses eventual consistency and it can take time for an object to be readable in a bucket
Answer: D
NEW QUESTION 34
An online gaming company is planning to launch a new game with Amazon DynamoDB as its data store. The database should be designated to support the following use cases:
* Update scores in real time whenever a player is playing the game.
* Retrieve a player's score details for a specific game session.
A Database Specialist decides to implement a DynamoDB table. Each player has a unique user_id and each game has a unique game_id.
Which choice of keys is recommended for the DynamoDB table?
- A. Create a global secondary index with user_id as the partition key
- B. Create a composite primary key with user_id as the partition key and game_id as the sort key
- C. Create a composite primary key with game_id as the partition key and user_id as the sort key
- D. Create a global secondary index with game_id as the partition key
Answer: A
Explanation:
Explanation/Reference: https://aws.amazon.com/blogs/database/amazon-dynamodb-gaming-use-cases-and-design- patterns/
NEW QUESTION 35
What type of block cipher does Amazon S3 offer for server side encryption?
- A. Triple DES
- B. RC5
- C. Blowfish
- D. Advanced Encryption Standard
Answer: D
NEW QUESTION 36
A user is planning to use the AWS RDS with MySQL. Which of the below mentioned services the user is not going to pay?
- A. RDS Cloudwatch metrics
- B. Data transfer
- C. Data storage
- D. I/O requests per month
Answer: A
Explanation:
RDS charges the user on a pay as you go basis. It charges the user based on the instance type, number of hours that the instance is running, data transfer, storage cost as well for the I/O requests. The monitoring is free of cost.
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html
NEW QUESTION 37
A company has a website that is developed in PHP and WordPress and is launched using AWS Elastic Beanstalk. There is a new version of the website that needs to be deployed in the Elastic Beanstalk environment. The company cannot tolerate having the website offline if an update fails. Deployments must have minimal impact and rollback as soon as possible.
What deployment method should be used?
- A. Snapshots
- B. Immutable
- C. All at once
- D. Rolling
Answer: B
Explanation:
Explanation
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/environmentmgmt-updates-immutable.html
NEW QUESTION 38
An application is using a single-node Amazon ElastiCache for Redis instance to improve read performance. Over time, demand for the application has increased exponentially, which has increased the load on the ElastiCache instance. It is critical that this cache layer handles the load and is resilient in case of node failures.
What can the Developer do to address the load and resiliency requirements?
- A. Migrate to an Amazon Elasticsearch Service cluster.
- B. Add a read replica instance.
- C. Migrate to a Memcached cluster.
- D. Vertically scale the ElastiCache instance.
Answer: B
Explanation:
https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Replication.Redis.Groups.html
NEW QUESTION 39
A user is creating a new EBS volume from an existing snapshot. The snapshot size shows 10 GB. Can the user create a volume of 30 GB from that snapshot?
- A. No
- B. Provided the original volume has set the change size attribute to true
- C. Yes
- D. Provided the snapshot has the modify size attribute set as true
Answer: C
Explanation:
A user can always create a new EBS volume of a higher size than the original snapshot size.
The user cannot create a volume of a lower size. When the new volume is created the size in the instance will be shown as the original size. The user needs to change the size of the device with resize2fs or other OS specific commands.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-expand-volume.html
NEW QUESTION 40
A user is launching an AWS RDS with MySQL. Which of the below mentioned options allows the user to configure the INNODB engine parameters?
- A. Parameter groups
- B. DB parameters
- C. Engine parameters
- D. Options group
Answer: A
Explanation:
With regard to RDS, the user can manage the configuration of a DB engine by using a DB parameter group. A DB parameter group contains engine configuration values that can be applied to one or more DB instances of the same instance type.
Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Welcome.html
NEW QUESTION 41
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