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Q241. The common use cases for DynamoDB Fine-Grained Access Control (FGAC) are cases in which the end user wants .
A. to change the hash keys of the table directly
B. to check if an IAM policy requires the hash keys of the tables directly
C. to read or modify any codecommit key of the table directly, without a middle-tier service
D. to read or modify the table directly, without a middle-tier service
Answer: D
Explanation:
FGAC can benefit any application that tracks information in a DynamoDB table, where the end user (or application client acting on behalf of an end user) wants to read or modify the table directly, without a middle-tier service. For instance, a developer of a mobile app named Acme can use FGAC to track the
top score of every Acme user in a DynamoDB table. FGAC allows the application client to modify only the top score for the user that is currently running the application.
Reference: http://aws.amazon.com/dynamodb/faqs/#security_anchor
Q242. Select a true statement about Amazon EC2 Security Groups (EC2-Classic).
A. After you launch an instance in EC2-Classic, you can't change its security groups.
B. After you launch an instance in EC2-Classic, you can change its security groups only once.
C. After you launch an instance in EC2-Classic, you can only add rules to a security group.
D. After you launch an instance in EC2-Classic, you cannot add or remove rules from a security group.
Answer: A
Explanation:
After you launch an instance in EC2-Classic, you can't change its security groups. However, you can add rules to or remove rules from a security group, and those changes are automatically applied to all instances that are associated with the security group.
Reference: http://docs.amazonwebservices.com/AWSEC2/latest/UserGuide/using-network-security.html
Q243. Which of the following statements is NOT true about using Elastic IP Address (EIP) in EC2-Classic and EC2-VPC platforms?
A. In the EC2-VPC platform, the Elastic IP Address (EIP) does not remain associated with the instance when you stop it.
B. In the EC2-Classic platform, stopping the instance disassociates the Elastic IP Address (EIP) from it.
C. In the EC2-VPC platform, if you have attached a second network interface to an instance, when you disassociate the Elastic IP Address (EIP) from that instance, a new public IP address is not assigned to the instance automatically; you'II have to associate an EIP with it manually.
D. In the EC2-Classic platform, if you disassociate an Elastic IP Address (EIP) from the instance, the instance is automatically assigned a new public IP address within a few minutes.
Answer: A
Explanation:
In the EC2-Classic platform, when you associate an Elastic IP Address (EIP) with an instance, the instance's current public IP address is released to the EC2-Classic public IP address pool. If you disassociate an EIP from the instance, the instance is automatically assigned a new public IP address within a few minutes. In addition, stopping the instance also disassociates the EIP from it.
But in the EC2-VPC platform, when you associate an EIP with an instance in a default Virtual Private Cloud (VPC), or an instance in which you assigned a public IP to the eth0 network interface during launch, its current public IP address is released to the EC2-VPC public IP address pool. If you disassociate an
EIP from the instance, the instance is automatically assigned a new public IP address within a few minutes. However, if you have attached a second network interface to the instance, the instance is not automatically assigned a new public IP address; you'II have to associate an EIP with it manually. The EIP remains associated with the instance when you stop it.
Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.htmI
Q244. To serve Web traffic for a popular product your chief financial officer and IT director have purchased 10 ml large heavy utilization Reserved Instances (Rls) evenly spread across two availability zones:
Route 53 is used to deliver the traffic to an Elastic Load Balancer (ELB). After several months, the product grows even more popular and you need additional capacity As a result, your company purchases two C3.2x|arge medium utilization Rls You register the two c3 2xIarge instances with your ELB and quickly find that the ml large instances are at 100% of capacity and the c3 2xIarge instances have significant capacity that's unused Which option is the most cost effective and uses EC2 capacity most effectively?
A. Use a separate ELB for each instance type and distribute load to ELBs with Route 53 weighted round robin
B. Configure Autoscaning group and Launch Configuration with ELB to add up to 10 more on-demand ml large instances when triggered by Cloudwatch shut off c3 2xIarge instances
C. Route traffic to EC2 ml large and c3 2xIarge instances directly using Route 53 latency based routing and health checks shut off ELB
D. Configure ELB with two c3 2xiarge Instances and use on-demand Autoscaling group for up to two additional c3.2x|arge instances Shut on mi .|arge instances.
Answer: D
Q245. A user has set up the CIoudWatch alarm on the CPU utilization metric at 50%, with a time interval of 5 minutes and 10 periods to monitor. What will be the state of the alarm at the end of 90 minutes, if the CPU utilization is constant at 80%?
A. ALERT
B. ALARM
C. OK
D. INSUFFICIENT_DATA
Answer: B
Explanation:
In this case the alarm watches a metric every 5 minutes for 10 intervals. Thus, it needs at least 50 minutes to come to the "OK" state.
Till then it will be in the |NSUFFUCIENT_DATA state.
Since 90 minutes have passed and CPU utilization is at 80% constant, the state of alarm will be "ALARNI". Reference: http://docs.aws.amazon.com/AmazonCIoudWatch/latest/DeveloperGuide/AlarmThatSendsEmaiI.html
Q246. Can you create IAM security credentials for existing users?
A. Yes, existing users can have security credentials associated with their account.
B. No, IAM requires that all users who have credentials set up are not existing users
C. No, security credentials are created within GROUPS, and then users are associated to GROUPS at a later time.
D. Yes, but only IAM credentials, not ordinary security credentials.
Answer: A
Q247. You have been asked to tighten up the password policies in your organization after a serious security breach, so you need to consider every possible security measure. Which of the following is not an account password policy for IAM Users that can be set?
A. Force IAM users to contact an account administrator when the user has allowed his or her password to expue.
B. A minimum password length.
C. Force IAM users to contact an account administrator when the user has entered his password incorrectly.
D. Prevent IAM users from reusing previous passwords.
Answer: C
Explanation:
IAM users need passwords in order to access the AWS Management Console. (They do not need passwords if they will access AWS resources programmatically by using the CLI, AWS SDKs, or the APIs.)
You can use a password policy to do these things: Set a minimum password length.
Require specific character types, including uppercase letters, lowercase letters, numbers, and non-alphanumeric characters. Be sure to remind your users that passwords are case sensitive. Allow all IAM users to change their own passwords.
Require IAM users to change their password after a specified period of time (enable password expiration). Prevent IAM users from reusing previous passwords.
Force IAM users to contact an account administrator when the user has allowed his or her password to expue.
Reference: http://docs.aws.amazon.com/|AM/Iatest/UserGuide/Using_ManagingPasswordPoIicies.htm|
Q248. A user has created an ELB with Auto Scaling. Which of the below mentioned offerings from ELB helps the
user to stop sending new requests traffic from the load balancer to the EC2 instance when the instance is being deregistered while continuing in-flight requests?
A. ELB sticky session
B. ELB deregistration check
C. ELB auto registration Off
D. ELB connection draining
Answer: D
Explanation:
The Elastic Load Balancer connection draining feature causes the load balancer to stop sending new requests to the back-end instances when the instances are deregistering or become unhealthy, while ensuring that in-flight requests continue to be served.
Reference:
http://docs.aws.amazon.com/EIasticLoadBaIancing/latest/DeveIoperGuide/config-conn-drain.htmI
Q249. Every user you create in the IAM system starts with _ _
A. Partial permissions
B. Full permissions
C. No permissions
Answer: C
Q250. Your customer is willing to consolidate their log streams (access logs application logs security logs etc.) in one single system. Once consolidated, the customer wants to analyze these logs in real time based on heuristics. From time to time, the customer needs to validate heuristics, which requires going back to data samples extracted from the last 12 hours?
What is the best approach to meet your customer's requirements?
A. Send all the log events to Amazon SQS. Setup an Auto Scaling group of EC2 sewers to consume the logs and apply the heuristics.
B. Send all the log events to Amazon Kinesis develop a client process to apply heuristics on the logs
C. Configure Amazon Cloud Trail to receive custom logs, use EMR to apply heuristics the logs
D. Setup an Auto Scaling group of EC2 syslogd servers, store the logs on 53 use EMR to apply heuristics on the logs
Answer: B
Explanation:
The throughput of an Amazon Kinesis stream is designed to scale without limits via increasing the number of shards within a stream. However, there are certain limits you should keep in mind while using Amazon Kinesis Streams:
By default, Records of a stream are accessible for up to 24 hours from the time they are added to the stream. You can raise this limit to up to 7 days by enabling extended data retention.
The maximum size of a data blob (the data payload before Base64-encoding) within one record is 1 megabyte (MB).
Each shard can support up to 1000 PUT records per second.
For more information about other API level limits, see Amazon Kinesis Streams Limits.