AWS-SysOps Exam Questions - Real & Updated Questions PDF
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NEW QUESTION # 524
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
Answer: B
Explanation:
Explanation
The Auto Scaling group determines the health state of each instance periodically by checking the results of the Amazon EC2 instance status checks. If the instance status description shows any other state other than
"running" or the system status description shows impaired, Auto Scaling considers the instance to be unhealthy. Thus, it terminates the instance and launches a replacement.
NEW QUESTION # 525
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
Answer: C
Explanation:
Explanation
Amazon RDS when enabled with Multi AZ will handle failovers automatically. Thus, the user can resume database operations as quickly as possible without administrative intervention. The primary DB instance switches over automatically to the standby replica if any of the following conditions occur:
An Availability Zone outage
The primary DB instance fails
The DB instance's server type is changed
The DB instance is undergoing software patching
A manual failover of the DB instance was initiated using Reboot with failover
NEW QUESTION # 526
A company received its latest bill with a large increase in the number of requests against Amazon SQS as compared to the month prior. The company is not aware of any changes in its SQS usage. The company is concerned about the cost increase and who or what was making these calls.
What should the SysOps Administrator use to validate the calls made to SQS?
- A. Amazon CloudWatch
- B. AWS Cost Explorer
- C. Amazon S3 server access logs
- D. AWS CloudTrail
Answer: A
NEW QUESTION # 527
A user has created a subnet with VPC and launched an EC2 instance in that subnet with only default settings.
Which of the below mentioned options is ready to use on the EC2 instance as soon as it is launched?
- A. Public IP
- B. Elastic IP
- C. Internet gateway
- D. Private IP
Answer: D
Explanation:
A Virtual Private Cloud (VPC is a virtual network dedicated to a user's AWS account. A subnet is a range of IP
addresses in the VPC. The user can launch the AWS resources into a subnet. There are two supported
platforms into which a user can launch instances: EC2-Classic and EC2-VPC. When the user launches an
instance which is not a part of the non-default subnet, it will only have a private IP assigned to it. The instances
part of a subnet can communicate with each other but cannot communicate over the internet or to the AWS
services, such as RDS / S3.
NEW QUESTION # 528
A SysOps Administrator has configured health checks on a load balancer. An Amazon EC2 instance attached to this load balancer fails the health check.
What will happen next? (Choose two.)
- A. A new EC2 instance will be deployed to replace the unhealthy instance.
- B. The EC2 instance will be terminated based on the health check failure.
- C. The load balancer will continue to perform the health check on the EC2 instance.
- D. The load balancer will stop sending traffic to the EC2 instance.
- E. The EC2 instance will be rebooted.
Answer: C,D
NEW QUESTION # 529
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. The Auto Scaling group will be terminated automatically
- B. Auto Scaling will keep trying to launch the instance for 72 hours
- C. Auto Scaling will suspend the scaling process
- D. Auto Scaling will start an instance in a separate region
Answer: C
Explanation:
If Auto Scaling is trying to launch an instance and if the launching of the instance fails continuously, it will
suspend the processes for the Auto Scaling groups since it repeatedly failed to launch an instance. This is
known as an administrative suspension. It commonly applies to the Auto Scaling group that has no
running instances which is trying to launch instances for more than 24 hours, and has not succeeded in
that to do so.
Reference: http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/US_SuspendResume.html
NEW QUESTION # 530
A user runs the command "dd if=/dev/zero of=/dev/xvdfbs=1M" on a fresh blank EBS volume attached to a Linux instance. Which of the below mentioned activities is the user performing with the command given above?
- A. Formatting the EBS volume
- B. Creating a file system on the EBS volume
- C. Mounting the device to the instance
- D. Pre warming the EBS volume
Answer: D
Explanation:
Explanation
Explanation:
When the user creates a new EBS volume and is trying to access it for the first time it will encounter reduced IOPS due to wiping or initiating of the block storage. To avoid this as well as achieve the best performance it is required to pre warm the EBS volume. For a blank volume attached with a Linux OS, the "dd" command is used to write to all the blocks on the device. In the command "dd if=/dev/zero of=/dev/xvdfbs=1M" the parameter "if =import file" should be set to one of the Linux virtual devices, such as /dev/zero. The "of=output file" parameter should be set to the drive that the user wishes to warm. The "bs" parameter sets the block size of the write operation; for optimal performance, this should be set to 1 MB.
NEW QUESTION # 531
A user is configuring a CloudWatch alarm on RDS to receive a notification when the CPU utilization of
RDS is higher than 50%. The user has setup an alarm when there is some inactivity on RDS, such as
RDS unavailability. How can the user configure this?
- A. Setup the notification when the CPU is more than 75% on RDS
- B. It is not possible to setup the alarm on RDS
- C. Setup the notification when the CPU utilization is less than 10%
- D. Setup the notification when the state is Insufficient Data
Answer: D
NEW QUESTION # 532
In which screen does a user select the Availability Zones while configuring Auto Scaling?
- A. Auto Scaling Instance Creation
- B. Auto Scaling Policy Creation
- C. Auto Scaling Launch config Creation
- D. Auto Scaling Group Creation
Answer: D
Explanation:
Explanation
You can take advantage of the safety and reliability of geographic redundancy by spanning your Auto Scaling group across multiple Availability Zones within a region and then attaching a load balancer to distribute incoming traffic across those Availability Zones. Incoming traffic is distributed equally across all Availability Zones enabled for your load balancer.
NEW QUESTION # 533
A user has launched an EC2 instance from an instance store backed AMI. If the user restarts the instance, what will happen to the ephemeral storage data?
- A. All the data will be erased but the ephemeral storage will stay connected
- B. It is not possible to restart an instance launched from an instance store backed AMI
- C. The data is preserved
- D. All data will be erased and the ephemeral storage is released
Answer: C
Explanation:
Explanation
A user can reboot an EC2 instance using the AWS console, the Amazon EC2 CLI or the Amazon EC2 API.
Rebooting an instance is equivalent to rebooting an operating system. However, it is recommended that the user use Amazon EC2 to reboot the instance instead of running the operating system reboot command from the instance. When an instance launched from an instance store backed AMI is rebooted all the ephemeral storage data is still preserved.
NEW QUESTION # 534
A user has created an ELB with the availability zone US-East-1A. The user wants to add more zones to
ELB to achieve High Availability. How can the user add more zones to the existing ELB?
- A. It is not possible to add more zones to the existing ELB
- B. The user can add zones on the fly from the AWS console
- C. The user should stop the ELB and add zones and instances as required
- D. The only option is to launch instances in different zones and add to ELB
Answer: B
Explanation:
The user has created an Elastic Load Balancer with the availability zone and wants to add more zones to
the existing ELB. The user can do so in two ways:
From the console or CLI, add new zones to ELB;
Launch instances in a separate AZ and add instances to the existing ELB.
Reference:
http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/enable-disable-az.html
NEW QUESTION # 535
A user has launched an EBS backed EC2 instance. The user has rebooted the instance. Which of the below mentioned statements is not true with respect to the reboot action?
- A. The instance runs on a new host computer
- B. The volume is preserved
- C. The Elastic IP remains associated with the instance
- D. The private and public address remains the same
Answer: A
Explanation:
Explanation
A user can reboot an EC2 instance using the AWS console, the Amazon EC2 CLI or the Amazon EC2 API.
Rebooting an instance is equivalent to rebooting an operating system. However, it is recommended that the user use the Amazon EC2 to reboot the instance instead of running the operating system reboot command from the instance. The instance remains on the same host computer and maintains its public DNS name, private IP address, and any data on its instance store volumes. It typically takes a few minutes for the reboot to complete, but the time it takes to reboot depends on the instance configuration.
NEW QUESTION # 536
In order to optimize performance for a compute cluster that requires low inter-node latency, which feature in the
following list should you use?
- A. Placement Groups
- B. EC2 Dedicated Instances
- C. AWS Direct Connect
- D. Multiple Availability Zones
- E. VPC private subnets
Answer: A
Explanation:
Explanation/Reference:
A placement group is a logical grouping of instances within a single Availability Zone. Using placement groups
enables applications to participate in a low-latency, 10 Gigabits per second (Gbps) network. Placement groups
are recommended for applications that benefit from low network latency, high network throughput, or both. To
provide the lowest latency, and the highest packet-per-second network performance for your placement group,
choose an instance type that supports enhanced networking.
NEW QUESTION # 537
A SysOps Administrator is maintaining an application running on Amazon EBS-backed Amazon EC2 instances in an Amazon EC2 Auto Scaling group. The application is set to automatically terminate unhealthy instances. The Administrator wants to preserve application logs from these instances for future analysis.
Which action will accomplish this?
- A. Configure VPC Flow Logs for the subnet hosting the EC2 instance.
- B. Configure an Amazon CloudWatch Events rule to transfer the logs to Amazon S3 upon an EC2 state change to terminated.
- C. Change the storage type from EBS to instance store.
- D. Configure the unified CloudWatch agent to stream the logs to Amazon CloudWatch Logs.
Answer: A
Explanation:
https://docs.aws.amazon.com/vpc/latest/userguide/flow-logs.html
NEW QUESTION # 538
An organization has created 50 IAM users. The organization has introduced a new policy which will
change the access of an IAM user. How can the organization implement this effectively so that there is no
need to apply the policy at the individual user level?
- A. Use the IAM groups and add users as per their role to different groups and apply policy to group
- B. Add each user to the IAM role as per their organization role to achieve effective policy setup
- C. The user can create a policy and apply it to multiple users in a single go with the AWS CLI
- D. Use the IAM role and implement access at the role level
Answer: A
Explanation:
With AWS IAM, a group is a collection of IAM users. A group allows the user to specify permissions for a
collection of users, which can make it easier to manage the permissions for those users. A group helps an
organization manage access in a better way; instead of applying at the individual level, the organization
can apply at the group level which is applicable to all the users who are a part of that group.
Reference:
http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_WorkingWithGroupsAndUsers.html
NEW QUESTION # 539
A SysOps Administrator must take a team's single existing AWS CloudFormation template and split it into smaller, service-specific templates. All of the services in the template a single, shared Amazon S3 bucket.
What should the Administrator do to ensure that this S3 bucket can be referenced by all the service templates?
- A. Add the S3 bucket as a resource in each template.
- B. Include the S3 bucket as a mapping in each template.
- C. Generate the S3 bucket using StackSets.
- D. Create the S3 bucket in its own template and export it.
Answer: A
NEW QUESTION # 540
You receive a frantic call from a new DBA who accidentally dropped a table containing all your customers.
Which Amazon RDS feature will allow you to reliably restore your database to within 5 minutes of when the mistake was made?
- A. RDS automated backup
- B. Multi-AZ RDS
- C. RDS read replicas
- D. RDS snapshots
Answer: A
Explanation:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAm azonRDSInstances.html
NEW QUESTION # 541
What would happen to an RDS (Relational Database Service) multi-Availability Zone deployment if the primary DB instance fails?
- A. The IP of the primary DB Instance is switched to the standby DB Instance.
- B. The RDS (Relational Database Service) DB instance reboots.
- C. The canonical name record (CNAME) is changed from primary to standby.
- D. A new DB instance is created in the standby availability zone.
Answer: B
Explanation:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_RebootInstance.html
NEW QUESTION # 542
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