Free Oracle Cloud Infrastructure 2020 Architect Professional Exam 1Z0-997-20 Exam Practice Test

A retail company has recently adopted a hybrid architecture. They have the following requirements for their end-to-end Connectivity model between their on-premises data center and Oracle Cloud Infrastructure (OC1) region* Highly available connection with service level redundancy* Dedicated network bandwidth with low latencyWhich connectivity setup is the most cost effective solution for this scenario?

• Setup IPsec VPN as your primary connection, and a FastConnect virtual circuit as a backup connection. Use separate edge devices in your on-premises data canter for each connection from your edge devices, advertise more specific routes IPSec VPN, and specific routes through the backup FastConnect virtual circuit.
  
• Setup FastConnect virtual circuit as your primary connection, and a second FastConnect virtual circuit as a backup connection. Use separate edge devices in your FastConnect physical connectivity is redundant Use a single edge device in your on premises data center for each connection From yc device, advertise more specific routes via primary FastConnect virtual circuit, and less specific routes through t backup FastConnect circuit.
  
• Setup FastConnect virtual circuit as your primary connection, and an IPSec VPN as a backup connection. Use separate edge devices in your on-premises data center for each connection. From your edge devices, advertise more specific routes through FastConnect virtual circuit, and more specific routes through the backup IPSec VPN path.
  
• Setup IPSec VPN as your primary connection, and a second IPSec VPN as a backup connection. Use separate edge devices in your on p data center for each connection. From your edge devices, advertise more specific routes via primary IPSec VPN. and less specific rod the backup IPSec VPN.
  

A customer has a Virtual Machine instance running in their Oracle Cloud Infrastructure tenancy. They realized that they wrongly picked a smaller shape for their compute instance. They are reaching out to you to help them fix the issue.Which of the below options is best recommended to suggest to the customer?

• Delete the running instance and spin up a new instance with the desired shape.
  
• Change the shape of instance without reboot, but stop all the applications running on instance beforehand to prevent data corruption.
  
• Change the shape of the virtual machine instance using the Change Shape feature available in the console.
  
• OCI doesn't allow such an operation.
  

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' data. 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?

• 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.
  
• 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
  
• 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.
  
• 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.
  

An upcoming e-commerce company has deployed their online shopping application on OCI. The application was deployed on compute instances with autoscaling configuration for application servers fronted by a load balancer and OCI Autonomous Transaction Processing (ATP) in the backend.In order to promote their e-commerce platform 50% discount was announced on all the products for a limited period. During the day 1 of promotional period it was observed that the application is running slow and company's hotline is flooded with complaints.What could be two possible reasons for this situation?

• The health check on some of the backend servers has failed and the load balancer has taken those servers temporarily out of rotation
  
• As part of autoscaling, the load balancer shape has dynamically changed to a larger shape to handle more incoming traffic and the system was slow for a short time during this change
  
• The health check on some of the backend servers has failed and the load balancer was rebooting these servers.
  
• The autoscaling has already scaled to the maximum number of instances specified in the configuration and there is no room of scaling
  

You notice that a majority of your Oracle Cloud Infrastructure (OCI) resources like compute instances, block volumes, and load balancers are not tagged. You have received a mandate from your CIO to add a predefined set of tags to identify owners for respective OCI resources. E.g. if Chris and Larry each create compute instances in a compartment, the instances that Chris creates include tags that contain his name as the value, while the instances that Larry creates have his name.Which option is the simplest way to implement this new tagging requirement?

• Create a default tag for each compartment, which ensure that appropriate tags are applied at the time of resource creation.
  
• Create an OCI Identity and Access Management policy requiring users to tag resources with their user name.
  
• Create an OCI Identity and Access Management policy to automatically tag a resource with the user name.
  
• Create tag variables to automatically tag a resource with the user name.
  

An E-commerce company which sells computers, tablets, and other electronics items has recently decided to move all of their on-premises infrastructure to Oracle Cloud Infrastructure (OCI). One of their on-premises application is running on an NGINX server and the Oracle Database is running in a 2 node Oracle Real Application Clusters (RAC) configuration.They cannot afford to have any application down time when they do the migration.What is an effective mechanism to migrate the customer application to OCI and set up regular automated backups?

• Launch a compute instance and run an NGINX server to host the application. Deploy a 2 node VM DB Systems with Oracle RAC enabled. Import the on-premises database to OCI VM DB Systems using Oracle Data Pump and then enable automatic backups.
  
• Launch a compute instance for both the NGINX application server and the database server. Attach block volumes on the database server compute instance and enable backup policy to backup the block volumes.
  
• Launch a compute instance and run an NGINX server to host the application. Deploy Exadata Quarter Rack, enable automatic backups and import the database using Oracle Data Pump.
  
• Launch a compute instance and run an NGINX server to host the application. Deploy a 2 node VM DB Systems with Oracle RAC enabled. Setup Oracle GoldenGate to synchronize data from their on-premises database to OCIVM Database. Export and Import the on-premises database to OCIVM DB Systems using Oracle Data Pump, apply the GoldenGate trail files to sync up the OCI database with the on-premises database. Enable automatic backups for the OCIVM database and then cutoverthe application from on-premises to OCI.
  

Which of the following features is NOT supported by Oracle Cloud Infrastructure Multi-factor authentication (MFA)?

• Only the user can enable MFA for their own account.
  
• Members of the Administrators group can disable MFA for other users.
  
• Users can disable MFA for their own accounts.
  
• Members of the Administrators group can enable MFA for other users.
  

A hospital in Austin has hosted its web based medical records portal entirely In Oracle cloud Infrastructure (OCI) using Compute Instances for its web-tier and DB system database for its data tier. To validate compliance with Health Insurance Portability and Accountability (HIPAA), the security professional to check their systems it was found that there are a lot of unauthorized coming requests coming from a set of IP addresses originating from a country in Southeast Asia.Which option can mitigate this type of attack?

• Block the attacking IP address by creating by Network Security Group rule to deny access to the compute Instance where the web server Is running
  
• Block the attacking IP address by implementing a OCI Web Application Firewall policy using Access Control Rules
  
• Mitigate the attack by changing the Route fable to redirect the unauthorized traffic to a dummy Compute instance
  
• Block the attacking IP address by creating a Security List rule to deny access to the subnet where the web server Is running
  

Your organization is planning on using Oracle Cloud Infrastructure (OCI) File Storage Service (FSS). You will be deploying multiple compute instance in Oracle Cloud Infrastructure(OCI) and mounting the file system to these compute instances.The file system will hold payment data processed by a Database instance and utilized by compute instances to create a overall inventory report. You need to restrict access to this data for specific compute instances and must be allowed/blocked per compute instance's CIDR block.Which option can you use to secure access?

• Create a new VCN security list, choose SOURCE TYPE as Service and SOURCE SERVICE as FSS. Add stateless ingress and egress rules for specific IP address and CIDR blocks.
  
• Use 'Export option' feature of FSS to restrict access to the mounted file systems.
  
• Create and configure OCI Web Application Firewall service with built in DNS based intelligent routing.
  
• Use stateless Security List rule to restrict access from known IP addresses only.
  

An OCI Architect is working on a solution consisting of analysis of data from clinical trials of a pharmaceutical company. The data is being stored in OCI Autonomous Data Warehouse (ADW) having 8 CPU Cores and 70 TB of storage. The architect is planning to setup autoscaling to respond to dynamic changes in the workload.Which of the following needs to be considered while configuring auto scaling? Choose two

• Enabling auto scaling does not change the concurrency and parallelism settings
  
• Auto scaling also scales IO throughput linearly along with CPU
  
• The database memory SGA and PGA will not get affected by the changes in the number of CPUs during auto scaling
  
• The maximum CPU cores that will be automatically allocated for this database is 16 CPUs