[2021-New] Amazon AWS-SysOps Dumps With Update Exam Questions (151-160)

AWS-SysOps Dumps

AWS-SysOps Exam Questions - Online Test

AWS-SysOps Premium VCE File

Learn More 100% Pass Guarantee - Dumps Verified - Instant Download
150 Lectures, 20 Hours

Q1. - (Topic 3)

A user has enabled detailed CloudWatch monitoring with the AWS Simple Notification Service. Which of the below mentioned statements helps the user understand detailed monitoring better?

A. SNS will send data every minute after configuration

B. There is no need to enable since SNS provides data every minute

C. AWS CloudWatch does not support monitoring for SNS

D. SNS cannot provide data every minute

Answer: D

Explanation:

CloudWatch is used to monitor AWS as well as the custom services. It provides either basic or detailed monitoring for the supported AWS products. In basic monitoring, a service sends data points to CloudWatch every five minutes, while in detailed monitoring a service sends data points to CloudWatch every minute. The AWS SNS service sends data every 5 minutes. Thus, it supports only the basic monitoring. The user cannot enable detailed monitoring with SNS.

Q2. - (Topic 3)

A user has hosted an application on EC2 instances. The EC2 instances are configured with ELB and Auto Scaling. The application server session time out is 2 hours. The user wants to configure connection draining to ensure that all in-flight requests are supported by ELB even though the instance is being deregistered. What time out period should the user specify for connection draining?

A. 5 minutes

B. 1 hour

C. 30 minutes

D. 2 hours

Answer: B

Q3. - (Topic 2)

A user has setup a billing alarm using CloudWatch for $200. The usage of AWS exceeded $200 after some days. The user wants to increase the limit from $200 to $400? What should the user do?

A. Create a new alarm of $400 and link it with the first alarm

B. It is not possible to modify the alarm once it has crossed the usage limit

C. Update the alarm to set the limit at $400 instead of $200

D. Create a new alarm for the additional $200 amount

Answer: C

Explanation:

AWS CloudWatch supports enabling the billing alarm on the total AWS charges. The estimated charges are calculated and sent several times daily to CloudWatch in the form of metric data. This data will be stored for 14 days. This data also includes the estimated charges for every service in AWS used by the user, as well as the estimated overall AWS charges. If the user wants to increase the limit, the user can modify the alarm and specify a new threshold.

Q4. - (Topic 2)

A user has created a web application with Auto Scaling. The user is regularly monitoring the application and he observed that the traffic is highest on Thursday and Friday between 8 AM to 6 PM. What is the best solution to handle scaling in this case?

A. Add a new instance manually by 8 AM Thursday and terminate the same by 6 PM Friday

B. Schedule Auto Scaling to scale up by 8 AM Thursday and scale down after 6 PM on Friday

C. Schedule a policy which may scale up every day at 8 AM and scales down by 6 PM

D. Configure a batch process to add a instance by 8 AM and remove it by Friday 6 PM

Answer: B

Explanation:

Auto Scaling based on a schedule allows the user to scale the application in response to predictable load changes. In this case the load increases by Thursday and decreases by Friday. Thus, the user can setup the scaling activity based on the predictable traffic patterns of the web application using Auto Scaling scale by Schedule.

Q5. - (Topic 3)

An organization is planning to create a user with IAM. They are trying to understand the limitations of IAM so that they can plan accordingly. Which of the below mentioned statements is not true with respect to the

limitations of IAM?

A. One IAM user can be a part of a maximum of 5 groups

B. The organization can create 100 groups per AWS account

C. One AWS account can have a maximum of 5000 IAM users

D. One AWS account can have 250 roles

Answer: A

Explanation:

AWS Identity and Access Management is a web service which allows organizations to manage users and user permissions for various AWS services. The default maximums for each of the IAM entities is given below: Groups per AWS account: 100 Users per AWS account: 5000 Roles per AWS account: 250 Number of groups per user: 10 (that is, one user can be part of these many groups.

Q6. - (Topic 3)

A user is trying to connect to a running EC2 instance using SSH. However, the user gets an Unprotected

Private Key File error. Which of the below mentioned options can be a possible reason for rejection?

A. The private key file has the wrong file permission

B. The ppk file used for SSH is read only

C. The public key file has the wrong permission

D. The user has provided the wrong user name for the OS login

Answer: A

Explanation:

While doing SSH to an EC2 instance, if you get an Unprotected Private Key File error it means that the private key file's permissions on your computer are too open. Ideally the private key should have the Unix permission of 0400. To fix that, run the command: chmod 0400 /path/to/private.key

Q7. - (Topic 3)

In AWS, which security aspects are the customer’s responsibility? Choose 4 answers

A. Controlling physical access to compute resources

B. Patch management on the EC2 instance s operating system

C. Encryption of EBS (Elastic Block Storage) volumes

D. Life-cycle management of IAM credentials

E. Decommissioning storage devices

F. Security Group and ACL (Access Control List) settings

Answer: B,C,E,F

Q8. - (Topic 3)

A sys admin is planning to subscribe to the RDS event notifications. For which of the below mentioned source categories the subscription cannot be configured?

A. DB security group

B. DB snapshot

C. DB options group

D. DB parameter group

Answer: C

Explanation:

Amazon RDS uses the Amazon Simple Notification Service (SNS. to provide a notification when an Amazon RDS event occurs. These events can be configured for source categories, such as DB instance, DB security group, DB snapshot and DB parameter group.

Q9. - (Topic 1)

You have an Auto Scaling group associated with an Elastic Load Balancer (ELB). You have noticed that instances launched via the Auto Scaling group are being marked unhealthy due to an ELB health check, but these unhealthy instances are not being terminated

What do you need to do to ensure trial instances marked unhealthy by the ELB will be terminated and replaced?

A. Change the thresholds set on the Auto Scaling group health check

B. Add an Elastic Load Balancing health check to your Auto Scaling group

C. Increase the value for the Health check interval set on the Elastic Load Balancer

D. Change the health check set on the Elastic Load Balancer to use TCP rather than HTTP checks

Answer: B

Explanation: Reference:

http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/as-add-elb-healthcheck.html

Add an Elastic Load Balancing Health Check to your Auto Scaling Group

By default, an Auto Scaling group periodically reviews the results of EC2 instance status to determine the health state of each instance. However, if you have associated your Auto Scaling group with an Elastic Load Balancing load balancer, you can choose to use the Elastic Load Balancing health check. In this case, Auto Scaling determines the health status of your instances by checking the results of both the EC2 instance status check and the Elastic Load Balancing instance health check.

For information about EC2 instance status checks, see.Monitor Instances With Status Checks.in the.Amazon EC2 User Guide for Linux Instances. For information about Elastic Load Balancing health checks, see.Health Check.in the.Elastic Load Balancing Developer Guide.

This topic shows you how to add an Elastic Load Balancing health check to your Auto Scaling group, assuming that you have created a load balancer and have registered the load balancer with your Auto Scaling group. If you have not registered the load balancer with your Auto Scaling group, see.Set Up a Scaled and Load-Balanced Application.

Auto Scaling marks an instance unhealthy if the calls to the Amazon EC2 action.DescribeInstanceStatus.return any state other than.running, the system status shows.impaired, or the calls to Elastic Load Balancing action.DescribeInstanceHealth.returns.OutOfService.in the instance state field.

If there are multiple load balancers associated with your Auto Scaling group, Auto Scaling checks the health state of your EC2 instances by making health check calls to each load balancer. For each call, if the Elastic Load Balancing action returns any state other than.InService, the instance is marked as unhealthy. After Auto Scaling marks an instance as unhealthy, it remains in that state, even if subsequent calls from other load balancers return an.InService.state for the same instance.

Q10. - (Topic 3)

A user is using the AWS EC2. The user wants to make so that when there is an issue in the EC2 server, such as instance status failed, it should start a new instance in the user’s private cloud. Which AWS service helps to achieve this automation?

A. AWS CloudWatch + Cloudformation

B. AWS CloudWatch + AWS AutoScaling + AWS ELB

C. AWS CloudWatch + AWS VPC

D. AWS CloudWatch + AWS SNS

Answer: D

Explanation:

Amazon SNS can deliver notifications by SMS text message or email to the Amazon Simple Queue Service (SQS. queues or to any HTTP endpoint. The user can configure a web service (HTTP End point. in his data centre which receives data and launches an instance in the private cloud. The user should configure the CloudWatch alarm to send a notification to SNS when the “StatusCheckFailed” metric is true for the EC2 instance. The SNS topic can be configured to send a notification to the user’s HTTP end point which launches an instance in the private cloud.