[Feb 02, 2022] 1Z0-997-20 PDF Recently Updated Questions Dumps to Improve Exam Score [Q29-Q48]

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[Feb 02, 2022] 1Z0-997-20 PDF Recently Updated Questions Dumps to Improve Exam Score

1Z0-997-20 Dumps Full Questions with Free PDF Questions to Pass


Oracle 1Z0-997-20 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Create architecture patterns including N-tier applications, microservices, and serverless architectures
Topic 2
  • Design, implement and operate solutions for security and governance
  • Operate and troubleshoot solutions on OCI
Topic 3
  • Design and implement hybrid network architectures to meet high availability, bandwidth and latency requirements
Topic 4
  • Implement and troubleshoot database migrations
  • Operate and troubleshoot databases
Topic 5
  • Implement solutions to meet business and technical requirements
  • Design for hybrid cloud architecture
Topic 6
  • Conduct Monitoring, observability and alerting in OCI
  • Migrate on-premises workloads to OCI
  • Evaluate and implement databases
Topic 7
  • Plan and design solutions to meet business and technical requirements
  • Design for Security and Compliance
Topic 8
  • Design scalable and elastic solutions for high availability and disaster recovery
  • Manage infrastructure using OCI CLI, APIs and SDKs

 

NEW QUESTION 29
You are working for a Travel company and your travel portal application is a collection of microservices that run on Oracle Cloud Infrastructure Container Engine for Kubernetes. As per the recent security overview, you have noticed that Oracle has published a newer image of the Operating System used by the worker nodes. You want to make sure that your application doesn't face any downtime but at the same time the worker nodes gets upgraded to the latest version of the Operating System.
What should you do to get this upgrade done without application downtime? (Choose the best answer.)

  • A. 1. Shutdown the worker nodes 2. Create a new node pool 3. Manually schedule the pods on the newly built node pool
  • B. 1. Run kubectl cordon <node name> against all the worker nodes in the old pool to stop any new application pods to get scheduled 2. Run kubectl drain <node name> """"delete""local""data """"force """"ignore""daemonsets to evict any Pods that are running 3. Download the patches for the new Operating System image 4. Patch the worker nodes to the latest Operating System image
  • C. 1. Create a new node pool using the latest available Operating System image. 2. Run kubectl cordon <node name> against all the worker nodes in the old pool to stop any new application pods to get scheduled 3. Run kubectl drain <node name> """"delete""local""data """"force """"ignore""daemonsets to evict any Pods that are running 4. Delete the old node pool
  • D. 1. Create a new node pool using the latest available Operating System image 2. Run kubectl taint nodes """"all node""role.kubernetes.io/master"" 3. Delete the old node pool

Answer: C

Explanation:
https://docs.cloud.oracle.com/en-us/iaas/Content/ContEng/Tasks/contengupgradingk8sworkernode.htm

 

NEW QUESTION 30
Your company has recently deployed a new web application that uses Oracle functions Your manager Instructed you to Implement major manage your systems more effectively. You know that Oracle functions automatically monitors functions on your behalf reports metrics through Service Metrics.
Which two metrics are collected and made available by this feature?

  • A. amount of CPU used by a function
  • B. number of times a function is invoked
  • C. number of concurrent connections
  • D. number of times a function is removed
  • E. length of time a function runs

Answer: B,E

Explanation:
https://docs.cloud.oracle.com/en-us/iaas/Content/Functions/Reference/functionsmetrics.htm you can monitor the health, capacity, and performance of functions you've deployed to Oracle Functions by using metrics Oracle Functions monitors function execution, and collects and reports metrics such as:
The number of times a function is invoked.
The length of time a function runs for.
The number of times a function failed.
The number of requests to invoke a function that returned a '429 Too Many Requests' error in the response (known as 'throttled function invocations').

 

NEW QUESTION 31
A global media organization is working on a project which lets users upload their videos to the site. After upload is complete, the video should be automatically processed by an Al algorithm. The algorithm will try to recognize certain actions in the videos so that it can be used to show related advertisements in future. The development team wants to focus on writing Al code and not worry about underlying infrastructure for high availability, scalability, security and monitoring.
Which Oracle Cloud Infrastructure (OCI) services would meet these requirements?

  • A. OCI Events, Oracle Container Engine for Kubernetes and OCI Digital Assistant.
  • B. Oracle Container Engine for Kubernetes, OCI Notifications and OCI Object Storage.
  • C. OCI Object Storage, OCI Events service and OCI Functions.
  • D. OCI Resource Manager, OCI Functions and OCI Events service.

Answer: C

 

NEW QUESTION 32
You are part of a project team working in the development environment created in OCI. You have realized that the CIDR block specified for one of the subnet in a VCN is not correct and want to delete the subnet. While deleting you are getting an error indicating that there are still resources that you must delete first. The error includes the OCID of the VNIC that is in the subnet.
Which of the following action you will take to troubleshoot this issue?

  • A. Use OCI CLI to delete the VNIC first and then delete the subnet
  • B. Use OCI CLI to call "GetVnic" operation to find out the parent resource of the VNIC
  • C. Use OCI CLI to delete the subnet using --force option
  • D. Copy and Paste OCID of the VNIC in the search box of the OCI Console to find out the parent resource of the VNIC

Answer: B

Explanation:
VCN, it must first be empty and have no related resources or attached gateways To delete a VCN's subnets, they must first be empty.
Note: When you create one of the preceding resources, you specify a VCN and subnet for it. The relevant service creates at least one VNIC in the subnet and attaches the VNIC to the resource. The service manages the VNICs on your behalf, so they are not readily apparent to you in the Console. The VNIC enables the resource to communicate with other resources over the network. Although this documentation commonly talks about the resource itself being in the subnet, it's actually the resource's attached VNIC.
If the subnet is not empty, you instead get an error indicating that there are still resources that you must delete first. The error includes the OCID of a VNIC that is in the subnet (there could be more, but the error returns only a single VNIC's OCID).
You can use the Oracle Cloud Infrastructure command line interface (CLI) or another SDK or client to call the GetVnic operation with the VNIC OCID. The response includes the VNIC's display name. Depending on the type of parent resource, the display name can indicate which parent resource the VNIC belongs to. You can then delete that parent resource, or you can contact your administrator to determine who owns the resource. When the VNIC's parent resource is deleted, the attached VNIC is also deleted from the subnet. If there are remaining VNICs in the subnet, repeat the process of determining and deleting each parent resource until the subnet is empty. Then you can delete the subnet.
For example, if you're using the CLI, use this command to get information about the VNIC.
oci network vnic get --vnic-id <VNIC_OCID

 

NEW QUESTION 33
To serve web traffic for a popular product, your cloud engineer has provisioned four BM.Standard2.52 instances, event spread across two availability domains in the us-asburn-1 region: LoadBalancer is used to deliver the traffic across instances.
After several months, the product grows even more popular and you need additional compute capacity. As a result, an engineer provisioned two additional VM.Standard2.8 instances.
You register the two VM. Standard2. 8 Instances with your load Balancer Backend sot and quickly find that the VM Standard2.8 Instances running at 100% of CPU utilization but the BM.Standard2 .52 instances have significant CPU capacity that's unused.
Which option is the most cost effective and uses instances capacity most effectively?

  • A. Configure your Load Balance, with weighted round robin policy to distribute traffic to the compute instances, with more weight assigned to bare metal instances.
  • B. Route traffic to BM.Standard2.52 and VM Standard2.8 instances directly using DNS and Health Checks. Shut off the load Balances.
  • C. Configure Autoscaling instance pool with LoadBalancer to add up to 3 more BM.Standard2.52 Instances when triggered. Shut off VM.Standard2.8 instances.
  • D. Configure LoadBalancer with two VM Standard2.8 instances and use Autoscalling Instant pool to add up to two additional VM instances. Shut off BM.Standard2.52 instances.

Answer: A

Explanation:
Customer have 4 BM.Standard2.52 and After several months he need additional compute capacity customer find The VM Standard2.8 Instances running at 100% of CPU utilization but the BM.Standard2 .52 instances have significant CPU capacity that unused.
so the customer need to check the Load balance policy to make sure the 4 BM and VM is utilize correctly

 

NEW QUESTION 34
You have been asked to implement a bespoke financial application in Oracle Cloud Infrastructure using virtual machine instances controlled by Autoscaling across multiple Availability Domains. The application stores transaction logs, intermediate transaction data, and audit data and needs to store this on a persistent, durable data store accessible from all of the application servers. The application requires the file system to be mounted in the /audit folder on the Linux file system. The system needs to tolerate the failure of two or more Fault Domains and still maintain data integrity. The solution should be as low maintenance as possible.
What storage architecture should you suggest?

  • A. Store the data on Oracle Object Storage mounted at the /audit mount point on all the Linux instances using the default mount options.
  • B. Use locally attached NVMe instances and configure RAID 0 replication between servers.
  • C. Use File Storage Service(FSS). Configure FSS to operate from all Availability Domains the application servers operate in and mount the file system in the /audit folder.
  • D. Implement a single instance and install an NFS server, configure and create an NFS share, and mount this as /audit on the application instances.

Answer: C

 

NEW QUESTION 35
You are working as a solution architect with a global automotive provider who is looking to create a multi-cloud solution They want to run their application tier in Microsoft Azure while utilizing the Oracle DB Systems In the Oracle Cloud Infrastructure (OCI).
What is the most fault tolerant and secure solution for this customer?

  • A. Create an Oracle database in OCI Virtual Cloud Network (VCN) and connect to the application tier running In Microsoft Azure over the Internet.
  • B. Create a FastConnect virtual circuit and choose Microsoft Azure from the list of providers available to setup Network connectivity between application tier running in Microsoft Azure Virtual Network and Oracle Databases running In OCI Virtual Cloud (VCN)
  • C. Create a VPN connection between the application tie, running in Azure Virtual Network and Oracle Databases running In OCI Virtual Cloud Network (VCN).
  • D. Use OCI Virtual Cloud Network remote peering connection to create connectivity among application tier running in Microsoft Azure Virtual Network and Oracle Databases running in OCI Virtual Cloud Network(VCN).

Answer: D

Explanation:
Explanation
Oracle and Microsoft have created a cross-cloud connection between Oracle Cloud Infrastructure and Microsoft Azure in certain regions. This connection lets you set up cross-cloud workloads without the traffic between the clouds going over the internet.
you can connect your VNet and VCN so that traffic that uses private IP addresses goes over the crosscloud connection.
For example, the following diagram shows a VNet that is connected to a VCN. Resources in the VNet are running a .NET application that access an Oracle database that runs on Database service resources in the VCN.
The traffic between the application and database uses a logical circuit that runs on the cross-cloud connection between Azure and Oracle Cloud Infrastructure.
The two virtual networks must belong to the same company and not have overlapping CIDRs.
The connection requires you to create an Azure ExpressRoute circuit and an Oracle Cloud Infrastructure FastConnect virtual circuit.

 

NEW QUESTION 36
An online registration system Is currently hosted on one large Oracle Cloud Infrastructure (OCT) Bare metal compute Instance with attached block volume to store of the users' dat a. The registration system accepts the Information from the user, Including documents and photos then performs automated verification and processing to check it the user is eligible for registration.
The registration system becomes unavailable at tunes when there is a surge of users using the system the existing architecture needs improvement as it takes a long time for the system to complete the processing and the attached block volumes are not large enough to use data being uploaded by the users.
Which Is the most effective option to achieve a highly scalable solution?

  • A. Change your architecture to use an OCI Object Storage standard tier bucket, replace the single bare metal instance with a Oracle Streaming Service (OSS) to ingest the Incoming requests and distribute the tasks to a group of compute Instances with Auto Scaling
  • B. Attach more Block volumes as the data volume increase, use Oracle Notification Service (ONS) to distribute tasks to a pool of compute instances working In parallel, and Auto Scaling to dynamically size the pool of Instances depending on the number of notifications received from the Notification Service. Use Resource Manager stacks to replicate your architecture to another region.
  • C. Upgrade your architecture to use a pool of Bare metal servers and configure them to use their local SSDs for faster data access Set up Oracle Streaming Service (OSS) to distribute the tasks to the pool of Bare metal Instances with Auto Scaling to dynamically increase or decrease the pool of compute instances depending on the length of the Streaming queue.
  • D. Upgrade your architecture to use more Block volumes as the data volume Increases. Replace the single bare metal instance with a group of compute instances with Auto Scaling to dynamically increase or decrease the compute instance pools depending on the traffic.

Answer: D

 

NEW QUESTION 37
A company has an urgent requirement to migrate 300 TB of data to Oracle Cloud Infrastructure (OCI) In two weeks. Their data center has been recently struck by a massive hurricane and the building has been badly damaged, although still operational. They have a 100 Mbps Internet line but the connection is Intermittent due to the damages caused to the electrical grid in this scenario, what is the most effective service to use to migrate the data to OCI given the time constraints?

  • A. Upload the data to OCI using OCI Object Storage multipart upload tool.
  • B. Setup a OCI Storage Gateway to connect your data center and your VCN. Once the connection has been established, upload all data to OCI using OCI Storage Gateway Cloud Sync tool.
  • C. Setup a hybrid network by launching aIGbpsFastConnect virtual circuit between your data center and OCI. Use OCI Object storage multipart upload tool to automate the migration of your data to OCI.
  • D. Use multiple OCI Data Transfer Appliances to transfer data to OCI.
  • E. Storage Gateway to connect your data center and your VCN. Once the connection has been established, upload all data to OCI.

Answer: D

Explanation:
Explanation
Due to the network speed is not good enough and the connection is Intermittent due to the damages caused to the electrical grid Oracle offers offline data transfer solutions that let you migrate data to Oracle Cloud Infrastructure.
You have 2 Options of Data Transfer
DISK-BASED DATA TRANSFER
You send your data as files on encrypted commodity disk to an Oracle transfer site. Operators at the Oracle transfer site upload the files into your designated Object Storage bucket in your tenancy.
APPLIANCE-BASED DATA TRANSFER
you send your data as files on secure, high-capacity, Oracle-supplied storage appliances to an Oracle transfer site. Operators at the Oracle transfer site upload the data into your designated Object Storage bucket in your tenancy.

 

NEW QUESTION 38
Your customer has gone through a recent reorganization. As part of this change, they are organizing their Oracle Cloud Infrastructure (OCI) compartment structure to align with the company's new organizational structure. (Refer to the exhibit)

They have made the following change:
Compartment A is moved, and its new parent compartment is compartment Dev.
Policy defined in compartment A: Allow group G1 to manage instance-family in compartment A Policy defined in root compartment: Allow group admins to manage instance-family in compartment Ops: Test: A After the compartment move, which action will provide users of group G1 and admins with similar privileges as before the move?

  • A. Define the following policies in compartment Dev:
    Allow group G1 to manage instance-family in compartment A
    Allow group admins to manage instance-family in compartment Ops: Dev: A
  • B. Define the following policy in compartment: Dev:
    Allow group admins to manage instance-family in compartment Ops: Dev: A
  • C. Mo change in any policy statement is required as all the policies associated with a compartment being moved is automatically updated
  • D. Define the following policy in compartment Dev:
    Allow group G1 to manage instance-family in compartment A

Answer: D

 

NEW QUESTION 39
You are designing the network infrastructure for two application servers: appserver-1 and appserver-2 running in two different subnets inside the same Virtual Cloud Network (VCN) Oracle Cloud Infrastructure (OCI). You have a requirement where your end users will access appserver-1 from the internet and appserver-2 from the on-premises network. The on-premises network is connected to your VCN over a FastConnect virtual circuit.
How should you design your routing configuration to meet these requirements?

  • A. Configure a single routing table (Routing Table-1) that has two set of rules: one that has route to internet via the Internet Gateway and another that propagates specific routes for the on-premises network via Dynamic Routing Gateway (DRG). Associate the routing table with the VCN.
  • B. Configure a single routing table (Route Table-1) that has two set of rules. One that has route to internet via the internet Gateway and another that propagate specific routes for the on-premise network via the Dynamic Routing Gateway. Associate the routing table with all the VCN subnets.
  • C. Configure two routing tables: Route Table-1 that has a route to internet via the Internet gateway. Associate this route table to the subnet containing appserver-1. Route Table-2 that propagate specific routes for the on-premises network via the Dynamic Routing Gateway (DRG) Associate this route table to subnet containing appserver-2.
  • D. Configure two routing table (Route table-1 Route Table-2) that have rule to route all traffic via the Dynamic Routing Gateway (DRG) Associate the two routing tables with all the VCN subnets.

Answer: C

Explanation:
An internet gateway is an optional virtual router you can add to your VCN to enable direct connectivity to the internet. Resources that need to use the gateway for internet access must be in a public subnet and have public IP addresses. Each public subnet that needs to use the internet gateway must have a route table rule that specifies the gateway as the target. For traffic to flow between a subnet and an internet gateway, you must create a route rule accordingly in the subnet's route table (for example, destination CIDR = 0.0.0.0/0 and target = internet gateway).
Dynamic Routing Gateway (DRG) is A virtual edge router attached to your VCN. Necessary for private peering. The DRG is a single point of entry for private traffic coming in to your VCN,After creating the DRG, you must attach it to your VCN and add a route for the DRG in the VCN's route table to enable traffic flow.

 

NEW QUESTION 40
The Finance department of your company has reached out to you. They have customer sensitive data on compute Instances In Oracle Cloud Infrastructure (OCI) which they want to store in OCI Storage for long term retention and archival.
To meet security requirements they want to ensure this data is NOT transferred over public internet, even if encrypted.
which they want to store In OCI Object Storage fin long term retention and archival To meet security requirements they want to ensure this data is NOT transferred over public Internet, even it encrypted.
Which option meets this requirements?

  • A. Use NAT gateway with appropriate route table when transferring data. Then use NAT gateways' toggle (on/off) once data transfer is complete.
  • B. Use Storage gateway with appropriate firewall rule.
  • C. Use Service gateway with appropriate route table.
  • D. Configure a NAT instance and all traffic between compute In Private subnet should use this NAT instance with Private IP as the route target.

Answer: C

Explanation:
Explanation
Service Gateway is virtual router that you can add to your VCN. It provides a path for private network traffic between your VCN and supported services in the Oracle Services Network like Object Storage) so compute Instances in a private subnet in your VCN can back up data to Object Storage without needing public IP addresses or access to the intern

 

NEW QUESTION 41
A developer is using Oracle Functions to deploy her code as part of an event-driven solution in Oracle Cloud Infrastructure (OCI). When she invokes her function, Oracle Functions returns a FunctionlnvokelmageNotAvailable message and a 502 error:

Which of the following options is NOT a plausible reason for this error?

  • A. OCI Events service rule is not configured with the correct location of the function in OCI Registry.
  • B. Missing or invalid IAM policy to give Oracle Functions read access to images stored for functions in repositories in OCI Registry.
  • C. The VCN being used does not have an internet gateway or a service gateway configured for Oracle Functions to be able to access OCI Registry.
  • D. The function does not exist in the specified location in OCI Registry.

Answer: A

 

NEW QUESTION 42
An Oracle Cloud Infrastructure (OCI) Public Load Balancer's SSL certificate is expiring soon. You noticed the Load Balancer is configured with SSL Termination only. When the certificate expires, data traffic can be interrupted and security compromised.
What steps do you need to take to prevent this situation?

  • A. Add the new SSL certificate to the Load Balancer, update backend servers to work with a new certificate and edit listeners so they can use the new certificate bundle.
  • B. Add the new SSL certificate to the Load Balancer and implement end to end SSL so it can encrypt the traffic from clients all the way to the backend servers.
  • C. Add the new SSL certificate to the Load Balancer, update listeners and backend sets so they can use the new certificate bundle.
  • D. Add the new SSL certificate to the Load Balancer and update listeners to use the new certificate bundle.
  • E. Add the new SSL certificate to the Load Balancer and update backend servers to use the new certificate bundle.

Answer: A

 

NEW QUESTION 43
You are running a legacy application In a compute Instance on Oracle Cloud Infrastructure (OCI). To provide enough space for it to store internal data, a block volume is attached to the instance in paravirtualized mode. Your application is not resilient to crash-consistent backup.
What should you do to securely backup the block volume?

  • A. Create a backup, detach the block volume and save your application data.
  • B. Use the block volume clone feature to save cost and speed up the backup process.
  • C. Before creating a backup, save your application data and detach the block volume.
  • D. Create a volume group, add the block volume and boot volume and then run the volume group backup.

Answer: B

 

NEW QUESTION 44
Your customer recently ordered for a 1-Gbps Fast Connect connection In ap-tokyo-1 region of Oracle Cloud Infrastructure (OCI). They will us this to one Virtual cloud Network (VCN) in their production (OC1) tenancy and VCN In their development OC1 tenancy As a Solution Architect, how should yon configure and architect the connectivity between on premises and VCNs In OCI?

  • A. Create two private virtual circuits on the FastConnect link. Create two Dynamic Routing Gateways, one for each VCNs. Attach the virtual circuits to the dynamic routing gateways.
  • B. You cannot achieve connectivity using single FastConnect link as the production and the development VCNs-are in separate tenancies. Request one more FastConnect connection.
  • C. Create a hub-VCN that uses Dynamic Routing Gateway (DRG) to communicate with on-premises network over FastConnect. Connect the hub-VCN to the production VCN spoke and with development VCN spoke, each peered via their respective local Peering Gateway (LPG)
  • D. Create a single private virtual circuit over FastConnect and attach fastConnect to either of the VCN's Dynamic Routing Gateway. Use Remote Peering to peer production and development VCNs.

Answer: C

Explanation:
There's an advanced routing scenario called transit routing that enables communication between an onpremises network and multiple VCNs over a single Oracle Cloud Infrastructure FastConnect or IPSec VPN.
The VCNs must be in the same region and locally peered in a hub-and-spoke layout. As part of the scenario, the VCN that is acting as the hub has a route table associated with each LPG (typically route tables are associated with a VCN's subnets).

 

NEW QUESTION 45
You are tasked with backing up your data using Oracle Cloud Infrastructure Block Volume service.
When you are finalizing your block volume backup schedule, which of the following two are valid considerations for your backup plan? (Choose Two)

  • A. Number of stored backups: How many backups you need to keep available and the deletion schedule for those you no longer need.
  • B. Location: Determine the Object Store Bucket where the backups will be stored.
  • C. Encryption: Whether to use your own key to encrypt your volume backups.
  • D. Governance: Tagging of backups so you can capture backup related API calls through the Audit service.
  • E. Frequency: How often you want to back up your data.

Answer: A,E

 

NEW QUESTION 46
A FinTech startup is developing a new blockchain based application to provide Smart Contracts using micro-services architecture. The development team is planning to deploy the application using containers and looking for a reliable way to build, deploy and manage their cloud-native application.
Additionally, they need an easy way to store, share and manage their application artifacts.
Which option should you recommend for this application?

  • A. Use Oracle Container Engine for Kubernetes (OKE) to manage the deployment environment and OCI Functions for application artifacts
  • B. Install and manage a Kubernetes cluster on OCI Compute Instances and use OCI Resource Manager for management of application artifacts
  • C. Use Oracle Container Engine for Kubernetes (OKE) to manage of cloud-native applications and OCI Registry for application artifacts
  • D. Use and OCI Resource Manager to manage cloud-native application and make the application artifacts available using OCI Functions

Answer: C

Explanation:
Oracle Cloud Infrastructure Container Engine for Kubernetes is a fully-managed, scalable, and highly available service that you can use to deploy your containerized applications to the cloud. Use Container Engine for Kubernetes (sometimes abbreviated to just OKE) when your development team wants to reliably build, deploy, and manage cloud-native applications. You specify the compute resources that your applications require, and Container Engine for Kubernetes provisions them on Oracle Cloud Infrastructure in an existing OCI tenancy.
Oracle Cloud Infrastructure Registry is an Oracle-managed registry that enables you to simplify your development to production workflow. Oracle Cloud Infrastructure Registry makes it easy for you as a developer to store, share, and manage development artifacts like Docker images. And the highly available and scalable architecture of Oracle Cloud Infrastructure ensures you can reliably deploy your applications.
So you don't have to worry about operational issues, or scaling the underlying infrastructure.

 

NEW QUESTION 47
You are working as a solutions architect for an online retail store In Frankfurt which uses multiple compute instance VMs spread among three availability domains In the eu-frankfurt-1 region.
You noticed the website Is having very high traffic, so you enabled autoscaling to sun tee me no f your application but, you observed that one of the availability domains is not receiving any traffic.
What could be wrong In this situation?

  • A. Autoscaling is using an Instance Pool configured to create instances in two availability Domains.
  • B. You have to manually acid all three availability domains to your load balancer configuration.
  • C. Autoscaling can be enabled for multiple availability domains only in uk-london t region.
  • D. Autoscaling only works with single availability domains.
  • E. You forgot to attach a load balancer to your instance pool configuration.

Answer: A

Explanation:
Autoscaling lets you automatically adjust the number of Compute instances in an instance pool based on performance metrics such as CPU utilization. This helps you provide consistent performance for your end users during periods of high demand, and helps you reduce your costs during periods of low demand.
you can associate a load balancer with an instance pool. If you do this, when you add an instance to the instance pool, the instance is automatically added to the load balancer's backend set . After the instance reaches a healthy state (the instance is listening on the configured port number), incoming traffic is automatically routed to the new instance.
Instance pools let you provision and create multiple Compute instances based off the same configuration, within the same region.
By default, the instances in a pool are distributed across all fault Domains in a best-effort manner based on capacity. If capacity isn't available in one fault domain, the instances are placed in other fault domains to allow the instance pool to launch successfully.
In a high availability scenario, you can require that the instances in a pool are evenly distributed across each of the fault domains that you specify. When sufficient capacity isn't available in one of the fault domains, the instance pool will not launch or scale successfully, and a work request for the instance pool will return an "out of capacity" error. To fix the capacity error, either wait for capacity to become available, or use the UpdateInstancePool operation to update the placement configuration (the availability domain and fault domain) for the instance pool.
during create the instance pool you can select the location where you want to place the instances" In the Availability Domain list, select the availability domain to launch the instances in.
If you want the instances in the pool to be placed evenly in one or more fault domains, select the Distribute instances evenly across selected fault domains check box. Then, select the fault domains to place the instances in.

 

NEW QUESTION 48
......

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