Question 1

A user has setup an Auto Scaling group. The group has failed to launch a single instance for more than 24 hours. What will happen to Auto Scaling in this condition?
A) Auto Scaling will keep trying to launch the instance for 72 hours
B) Auto Scaling will suspend the scaling process
C) Auto Scaling will start an instance in a separate region
D) The Auto Scaling group will be terminated automatically

Accepted Answer

Auto Scaling will suspend the scaling process if it fails to launch an instance for an extended period, such as 24 hours, to prevent unnecessary resource usage and costs.

Question 2

A user is trying to launch an EBS backed EC2 instance under free usage. The user wants to achieve encryption of the EBS volume. How can the user encrypt the data at rest?
A) Use AWS EBS encryption to encrypt the data at rest
B) The user cannot use EBS encryption and has to encrypt the data manually or using a third party tool
C) The user has to select the encryption enabled flag while launching the EC2 instance
D) Encryption of volume is not available as a part of the free usage tier

Accepted Answer

The answer of A user is trying to launch an...

Question 3

A user has created a VPC with CIDR 20.0.0.0/24. The user has created a public subnet with CIDR 20.0.0.0/25 and a private subnet with CIDR 20.0.0.128/25. The user has launched one instance each in the private and public subnets. Which of the below mentioned options cannot be the correct IP address (private IP. assigned to an instance in the public or private subnet?
A) 20.0.0.255
B) 20.0.0.132
C) 20.0.0.122
D) 20.0.0.55

Accepted Answer

The answer of A user has created a VPC with...

Question 4

A user has created a subnet in VPC and launched an EC2 instance within it. The user has not selected the option to assign the IP address while launching the instance. The user has 3 elastic IPs and is trying to assign one of the Elastic IPs to the VPC instance from the console. The console does not show any instance in the IP assignment screen. What is a possible reason that the instance is unavailable in the assigned IP console?
A) The IP address may be attached to one of the instances
B) The IP address belongs to a different zone than the subnet zone
C) The user has not created an internet gateway
D) The IP addresses belong to EC2 Classic; so they cannot be assigned to VPC

Accepted Answer

Elastic IP addresses allocated for EC2-Classic cannot be assigned to instances in a VPC.

Question 5

A user has setup an EBS backed instance and attached 2 EBS volumes to it. The user has setup a CloudWatch alarm on each volume for the disk data. The user has stopped the EC2 instance and detached the EBS volumes. What will be the status of the alarms on the EBS volume?
A) OK
B) Insufficient Data
C) Alarm
D) The EBS cannot be detached until all the alarms are removed

Accepted Answer

When an EC2 instance is stopped and EBS volumes are detached, CloudWatch alarms will show "Insufficient Data" because they cannot receive metrics from the detached volumes.

Question 6

An organization has configured Auto Scaling with ELB. One of the instance health check returns the status as Impaired to Auto Scaling. What will Auto Scaling do in this scenario?
A) Perform a health check until cool down before declaring that the instance has failed
B) Terminate the instance and launch a new instance
C) Notify the user using SNS for the failed state
D) Notify ELB to stop sending traffic to the impaired instance

Accepted Answer

Auto Scaling will terminate the impaired instance and launch a new one to maintain the desired capacity and ensure application availability.

Question 7

A user is displaying the CPU utilization, and Network in and Network out CloudWatch metrics data of a single instance on the same graph. The graph uses one Y-axis for CPU utilization and Network in and another Y-axis for Network out. Since Network in is too high, the CPU utilization data is not visible clearly on graph to the user. How can the data be viewed better on the same graph?
A) It is not possible to show multiple metrics with the different units on the same graph
B) Add a third Y-axis with the console to show all the data in proportion
C) Change the axis of Network by using the Switch command from the graph
D) Change the units of CPU utilization so it can be shown in proportion with Network

Accepted Answer

You can use the "Switch" command to change the axis of the Network metrics, allowing you to adjust the scale and make the CPU utilization data more visible.

Question 8

A sysadmin has created the below mentioned policy on an S3 bucket named cloudacademy. What does this policy define? 
A) It will make the cloudacademy bucket as well as all its objects as public
B) It will allow everyone to view the ACL of the bucket
C) It will give an error as no object is defined as part of the policy while the action defines the rule about the object
D) It will make the cloudacademy bucket as public

Accepted Answer

The answer of A sysadmin has created the below mentioned...

Question 9

A user has created a VPC with CIDR 20.0.0.0/16 using VPC Wizard. The user has created a public CIDR (20.0.0.0/24) and a VPN only subnet CIDR (20.0.1.0/24) along with the hardware VPN access to connect to the user's data center. Which of the below mentioned components is not present when the VPC is setup with the wizard?
A) Main route table attached with a VPN only subnet
B) A NAT instance configured to allow the VPN subnet instances to connect with the internet
C) Custom route table attached with a public subnet
D) An internet gateway for a public subnet

Accepted Answer

A NAT instance is not automatically created by the VPC Wizard. It must be manually set up if needed.

Question 10

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

Accepted Answer

AWS CloudWatch can monitor the EC2 instance status, and AWS SNS (Simple Notification Service) can send notifications or trigger actions, such as starting a new instance in a private cloud, based on those status changes.

Question 11

A user has created a VPC with public and private subnets using the VPC wizard. The user has not launched any instance manually and is trying to delete the VPC. What will happen in this scenario?
A) It will not allow to delete the VPC as it has subnets with route tables
B) It will not allow to delete the VPC since it has a running route instance
C) It will terminate the VPC along with all the instances launched by the wizard
D) It will not allow to delete the VPC since it has a running NAT instance

Accepted Answer

The answer of A user has created a VPC with...

Question 12

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

Accepted Answer

The answer of A user has hosted an application on...

Question 13

A user has configured an SSL listener at ELB as well as on the back-end instances. Which of the below mentioned statements helps the user understand ELB traffic handling with respect to the SSL listener?
A) It is not possible to have the SSL listener both at ELB and back-end instances
B) ELB will modify headers to add requestor details
C) ELB will intercept the request to add the cookie details if sticky session is enabled
D) ELB will not modify the headers

Accepted Answer

ELB will not modify the headers

Question 14

A user has launched an EBS backed instance with EC2-Classic. The user stops and starts the instance. Which of the below mentioned statements is not true with respect to the stop/start action?
A) The instance gets new private and public IP addresses
B) The volume is preserved
C) The Elastic IP remains associated with the instance
D) The instance may run on a new host computer

Accepted Answer

When an EC2-Classic instance is stopped and started, the Elastic IP address is disassociated from the instance and must be reassociated manually.

Question 15

An organization has configured two single availability zones. The Auto Scaling groups are configured in separate zones. The user wants to merge the groups such that one group spans across multiple zones. How can the user configure this?
A) Run the command as-join-auto-scaling-group to join the two groups
B) Run the command as-update-auto-scaling-group to configure one group to span across zones and delete the other group
C) Run the command as-copy-auto-scaling-group to join the two groups
D) Run the command as-merge-auto-scaling-group to merge the groups

Accepted Answer

The user can update an Auto Scaling group to span across multiple availability zones using the `as-update-auto-scaling-group` command and then delete the other group.

Question 16

A user has launched two EBS backed EC2 instances in the US-East-1a region. The user wants to change the zone of one of the instances. How can the user change it?
A) The zone can only be modified using the AWS CLI
B) Create an AMI of the running instance and launch the instance in a separate AZ
C) Stop one of the instances and change the availability zone
D) From the AWS EC2 console, select the Actions - > Change zones and specify the new zone

Accepted Answer

To change the availability zone of an EC2 instance, the user must create an AMI of the instance and then launch a new instance from that AMI in the desired availability zone.

Question 17

A user has created a Cloudformation stack. The stack creates AWS services, such as EC2 instances, ELB, AutoScaling, and RDS. While creating the stack it created EC2, ELB and AutoScaling but failed to create RDS. What will Cloudformation do in this scenario?
A) Cloudformation can never throw an error after launching a few services since it verifies all the steps before launching
B) It will warn the user about the error and ask the user to manually create RDS
C) Rollback all the changes and terminate all the created services
D) It will wait for the user's input about the error and correct the mistake after the input

Accepted Answer

CloudFormation will automatically roll back and delete all resources that were created if any part of the stack creation fails, unless rollback is disabled.

Question 18

A user is planning to set up the Multi AZ feature of RDS. Which of the below mentioned conditions won't take advantage of the Multi AZ feature?
A) Availability zone outage
B) A manual failover of the DB instance using Reboot with failover option
C) Region outage
D) When the user changes the DB instance's server type

Accepted Answer

Multi-AZ deployments are designed to provide high availability within a single region, so they do not protect against region-wide outages.

Question 19

A user is trying to connect to a running EC2 instance using SSH. However, the user gets a Host key not found error. Which of the below mentioned options is a possible reason for rejection?
A) The user has provided the wrong user name for the OS login
B) The instance CPU is heavily loaded
C) The security group is not configured properly
D) The access key to connect to the instance is wrong

Accepted Answer

The "Host key not found" error typically indicates that the SSH client does not recognize the server's host key. This can happen if the user is trying to connect with the wrong username, as the host key is associated with the specific user account on the server.

Question 20

An AWS root account owner is trying to create a policy to access RDS. Which of the below mentioned statements is true with respect to the above information?
A) Create a policy which allows the users to access RDS and apply it to the RDS instances
B) The user cannot access the RDS database if he is not assigned the correct IAM policy
C) The root account owner should create a policy for the IAM user and give him access to the RDS services
D) The policy should be created for the user and provide access for RDS

Accepted Answer

The root account owner should create an IAM policy that grants the necessary permissions to access RDS and attach it to the IAM user who needs access.

Exam 13: AWS Certified SysOps Administrator (SOA-C01)

A user has setup an Auto Scaling group. The group has failed to launch a single instance for more than 24 hours. What will happen to Auto Scaling in this condition?

A user is trying to launch an EBS backed EC2 instance under free usage. The user wants to achieve encryption of the EBS volume. How can the user encrypt the data at rest?

A user has setup an EBS backed instance and attached 2 EBS volumes to it. The user has setup a CloudWatch alarm on each volume for the disk data. The user has stopped the EC2 instance and detached the EBS volumes. What will be the status of the alarms on the EBS volume?

An organization has configured Auto Scaling with ELB. One of the instance health check returns the status as Impaired to Auto Scaling. What will Auto Scaling do in this scenario?

A sysadmin has created the below mentioned policy on an S3 bucket named cloudacademy. What does this policy define?

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 user has created a VPC with public and private subnets using the VPC wizard. The user has not launched any instance manually and is trying to delete the VPC. What will happen in this scenario?

A user has configured an SSL listener at ELB as well as on the back-end instances. Which of the below mentioned statements helps the user understand ELB traffic handling with respect to the SSL listener?

A user has launched an EBS backed instance with EC2-Classic. The user stops and starts the instance. Which of the below mentioned statements is not true with respect to the stop/start action?

An organization has configured two single availability zones. The Auto Scaling groups are configured in separate zones. The user wants to merge the groups such that one group spans across multiple zones. How can the user configure this?

A user has launched two EBS backed EC2 instances in the US-East-1a region. The user wants to change the zone of one of the instances. How can the user change it?

A user has created a Cloudformation stack. The stack creates AWS services, such as EC2 instances, ELB, AutoScaling, and RDS. While creating the stack it created EC2, ELB and AutoScaling but failed to create RDS. What will Cloudformation do in this scenario?

A user is planning to set up the Multi AZ feature of RDS. Which of the below mentioned conditions won't take advantage of the Multi AZ feature?

A user is trying to connect to a running EC2 instance using SSH. However, the user gets a Host key not found error. Which of the below mentioned options is a possible reason for rejection?

An AWS root account owner is trying to create a policy to access RDS. Which of the below mentioned statements is true with respect to the above information?