Oracle 1Z0-997-20 Online Practice Questions and Exam Preparation

Oracle 1Z0-997-20 Online Questions & Answers

• Question 1:

  You are part of a project team working in the development environment created in Oracle Cloud Infrastructure (OCI). You realize that the CIDR block specified for one of the subnets in a Virtual Cloud Network (VCN) is not correct and want to delete the subnet. While deleting you get 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 call "network vnic" and "compute vnic-attachment" operations to find out the parent resource of the VNIC.
  B. Use OCI CLI to delete the VNIC first and then delete the subnet.
  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.
  A. Use OCI CLI to call "network vnic" and "compute vnic-attachment" operations to find out the parent resource of the VNIC.

• Question 2:

  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?

  A. The health check on some of the backend servers has failed and the load balancer has taken those servers temporarily out of rotation
  B. 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
  C. The health check on some of the backend servers has failed and the load balancer was rebooting these servers.
  D. The autoscaling has already scaled to the maximum number of instances specified in the configuration and there is no room of scaling
  A. The health check on some of the backend servers has failed and the load balancer has taken those servers temporarily out of rotation
  D. The autoscaling has already scaled to the maximum number of instances specified in the configuration and there is no room of scaling

• Question 3:

  Which three scenarios are suitable for the Oracle Infrastructure (OCI) Autonomous transaction Processing Server less (ATP-S) deployment?

  A. well established, online auction marketplace is running an application where there is database usage 24? but also has peaks of activity that the hard to predict when the peaks happen, the total activities may reach 3 times the normal activity level
  B. A small startup is deploying a new application fen eCommerce and it requires database to store customers' transactions the team b of what the load will look like since it is a new application.
  C. A midsize company is considering migrating its legacy on premises MongoDB database to Oracle Cloud Infrastructure (OCI). The database has significantly higher workloads on weekends than weekdays
  D. A developer working on an Internal project needs to use a database during work hours but doesn't need It during nights or weekends. the project budget requires her to keep costs low.
  E. A manufacturing company is running Oracle E-Business Suite application on premises. They are looking to move this application to OCI and they want to use a managed database offering for their database tier.
  A. well established, online auction marketplace is running an application where there is database usage 24? but also has peaks of activity that the hard to predict when the peaks happen, the total activities may reach 3 times the normal activity level
  B. A small startup is deploying a new application fen eCommerce and it requires database to store customers' transactions the team b of what the load will look like since it is a new application.
  D. A developer working on an Internal project needs to use a database during work hours but doesn't need It during nights or weekends. the project budget requires her to keep costs low.

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  Explanation/Reference:

  MongoDB is a cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with schema, so the best to be migrated to Oracle NoSQL Database. https://blogs.oracle.com/nosql/migrate-mongodb-data-to-oracle-nosql-database Autonomous transaction Processing Serverless (ATP-S) isn't supported yet for EBS database

• Question 4:

  Your security team has informed you that there are a number of malicious requests for your web application coming from a set of IP addresses originating from a country in Europe.

  Which of the following methods can be used to mitigate these type of unauthorized requests?

  A. Web Application Firewall policy using access control rules
  B. Deny rules in Virtual Cloud Network Security Group for the specific set of IP addresses.
  C. Delete Internet Gateway from Virtual Cloud Network.
  D. Deny rules in Virtual Cloud Network Security Lists for the specific set of IP addresses.
  A. Web Application Firewall policy using access control rules

• Question 5:

  You are working as a cloud engineer for an IoT startup company which is developing a health monitoring pet collar for dogs and cats. The company collects biometric Information of the pet every second and then sends it to Oracle Cloud Infrastructure (OCI) Your task is to come up with an architecture which will accept and process the monitoring data as well as provide complete trends and health reports to the pet owners. The portal should be highly available, durable, and scalable with an additional feature for showing real time biometric data analytics.

  Which architecture will help you meet this requirement?

  A. Use OCI Streaming Service to collect the incoming biometric data. Use Oracle Functions to process the date and show the results on a real-time dashboard and store the results lo OCI Object Storage Store the data In OCI Autonomous Data warehouse (ADW) to handle analytics.
  B. Launch an open source Hadoop cluster to collect the Incoming biometrics data Use an Open source Fluentd cluster to analyze the- data me results to OCI Autonomous Transaction Processing (ADW)to handle complex analytics
  C. Create an OCI Object Storage bucket to collect the incoming biometric data from the smart pet collar Fetch the data horn OC\ Object storage to OCI Autonomous Data Warehouse (ADW) every day and run analytics Jobs with it
  D. Use OCI Streaming Service to collect the incoming biometric data. Use an open source Hadoop cluster to analyze the data horn streaming service. Store the results to OCI Autonomous Data warehouse (ADW) to handle complex analytics.
  A. Use OCI Streaming Service to collect the incoming biometric data. Use Oracle Functions to process the date and show the results on a real-time dashboard and store the results lo OCI Object Storage Store the data In OCI Autonomous Data warehouse (ADW) to handle analytics.

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  Explanation/Reference:

• Question 6:

  You have deployed a multi-tier application with multiple compute instances in Oracle Cloud Infrastructure. You want to back up these volumes and have decided to use Volume Group's feature. The Block volume and Compute instances exist in different compartments within your tenancy.

  Periodically. a few child compartments are moved under different parent compartments, and you notice that sometimes volume group backup fails.

  What could be the cause?

  A. You are exceeding your volume group backup quota configured.
  B. You have the same block volume attached to multiple compute instances; if these compute instances are in different compartments then all concerned compartments must be moved at the same time.
  C. Compute instance with multiple block volumes attached cannot move when a compartment is moved.
  D. The Identity and Access Management policy allowing backup failed to move when the compartment was moved.
  D. The Identity and Access Management policy allowing backup failed to move when the compartment was moved.

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  Explanation/Reference:

  You can move a compartment to a different parent compartment within the same tenancy. When you move a compartment, all its contents (subcompartments and resources) are moved with it. Moving a compartment has implications for the

  contents. After you move a compartment to a new parent compartment, the access policies of the new parent take effect and the policies of the previous parent no longer apply. Before you move a compartment, ensure that:

  You are aware of the policies that govern access to the compartment in its current position. You are aware of the polices in the new parent compartment that will take effect when you move the compartment.

  In some cases, when moving nested compartments with policies that specify the hierarchy, the polices are automatically updated to ensure consistency.

• Question 7:

  As a solution architect, you are designing a web application to be deployed across multiple Oracle Cloud Infrastructures (OCI) regions for a global audience. Your goal is that users from each region should access the application web servers

  deployed in their own geographical OCI location.

  Which OCI feature can be used to achieve this?

  A. OCI Traffic Management IP Prefix steering policy
  B. OCI Global Load balancers
  C. OCI Public Load Balancers
  D. OCI Traffic Management GeoLocation steering policy
  D. OCI Traffic Management GeoLocation steering policy

• Question 8:

  You are responsible for a web application deployed on a set of compute VM instances in Oracle Cloud Infrastructure (OCI). Your application stores data on block volumes.

  In production, the business requirement is a Recovery Point Objective (RPO) of two hours and that data should be recoverable in case of a regional failure.

  How would you meet the RPO requirement in the event of a failure?

  A. Create a user-defined storage backup policy and attach a schedule of type "Hourly" and automatically copy to another region. Apply this policy to a volume group containing the block volumes.
  B. Store hourly block volume backups to an NVMe device attached to a compute instance in a different Availability Domain (AD).
  C. Configure your application to use synchronous primary-secondary data replication between ADs.
  D. Set up cross-region volume replication to replicate the block volumes to a different OCI region.
  C. Configure your application to use synchronous primary-secondary data replication between ADs.

• Question 9:

  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. Missing or invalid IAM policy to give Oracle Functions read access to images stored for functions in repositories in OCI Registry.
  B. The function does not exist in the specified location 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. OCI Events service rule is not configured with the correct location of the function in OCI Registry.
  D. OCI Events service rule is not configured with the correct location of the function in OCI Registry.

• Question 10:

  You are designing the network infrastructure for an application consisting of a web server (server-1) and a Domain Name Server (server-2) running in two different subnets inside the same Virtual Cloud Network (VCN) in Oracle Cloud Infrastructure (OCI). You have a requirement where your end users will access server-1 from the internet and server-2 from your customer's 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 with two set of rules: one that has route to internet via an Internet Gateway and another that propagates specific routes for the on-premises network via a Dynamic Routing Gateway. Don't associate this routing table with any of the subnets in the VCN.
  B. Configure a single routing table with two set of rules: one that has route to internet via an Internet Gateway and another that propagate specific routes to the on-premises network via a Dynamic Routing Gateway. Associate the routing table with all the VCN subnets.
  C. Configure two routing tables: first one with a route to internet via an Internet gateway; associate this route table to the subnet containing server-1 .Configure the second route table to propagate specific routes to the on-premises network via a Dynamic Routing Gateway; associate this route table to subnet containing server-2.
  D. Configure two routing tables that have rules to route all traffic via a Dynamic Routing Gateway. Associate the two routing tables with all the VCN subnets.
  C. Configure two routing tables: first one with a route to internet via an Internet gateway; associate this route table to the subnet containing server-1 .Configure the second route table to propagate specific routes to the on-premises network via a Dynamic Routing Gateway; associate this route table to subnet containing server-2.