1Z0-1085-20 Online Practice Questions and Answers

Correct Answer: ADE

You can create and manage resources in the following ways: Oracle Cloud Infrastructure Console The Console is an intuitive, graphical interface that lets you create and manage your instances, cloud networks, and storage volumes, as well as your users and permissions. See Using the Console. Oracle Cloud Infrastructure APIs The Oracle Cloud Infrastructure APIs are typical REST APIs that use HTTPS requests and responses. See API Requests. SDKs Several Software Development Kits are available for easy integration with the Oracle Cloud Infrastructure APIs, including SDKs for Java, Ruby, and Python. For more information, see Developer Resources. Command Line Interface (CLI) You can use a command line interface with some services. For more information, see Developer Resources. Terraform Oracle supports Terraform. Terraform is "infrastructure-as-code" software that allows you to define your infrastructure resources in files that you can persist, version, and share. For more information, see Getting Started with the Terraform Provider. Ansible Oracle supports the use of Ansible for cloud infrastructure provisioning, orchestration, and configuration management. Ansible allows you to automate configuring and provisioning your cloud infrastructure, deploying and updating software assets, and orchestrating your complex operational processes. For more information, see Getting Started with Ansible for Oracle Cloud Infrastructure. Resource Manager Resource Manager is an Oracle Cloud Infrastructure service that allows you to automate the process of provisioning your Oracle Cloud Infrastructure resources. It helps you install, configure, and manage resources using the "infrastructure- as-code" model. For more information, see Overview of Resource Manager.

Reference: https://docs.cloud.oracle.com/en-us/iaas/pdf/gsg/OCI_Getting_Started.pdf

Correct Answer: B

Oracle Autonomous Data Warehouse is a cloud data warehouse service that eliminates virtually all the complexities of operating a data warehouse and securing data. It automates provisioning, configuring, securing, tuning, scaling, patching, backing up, and repairing of the data warehouse. Unlike other "fully managed" cloud data warehouse solutions that only patch and update the service, it also features elastic, automated scaling, performance tuning, security, and a broad set of built-in capabilities that enable machine learning analysis, simple data loading, and data visualizations. Data Warehouse uses continuous query optimization, table indexing, data summaries, and auto- tuning to ensure consistent high performance even as data volume and number of users grows. Autonomous scaling can temporarily increase compute and I/O by a factor of three to maintain performance. Unlike other cloud services which require downtime to scale, Autonomous Data Warehouse scales while the service continues to run. Reference: https://www.oracle.com/autonomous-database/autonomous-data-warehouse/

Correct Answer: C

Correct Answer: D

The Payment Card Industry Data Security Standard (PCI DSS) is a global set of security standard designed to encourage and enhance cardholder data security and promote the adoption of consistent data security measures around the technical and operational components related to cardholder data. Oracle has successfully completed a Payment Card Industry Data Security Standard (PCI DSS) audit and received an Attestation of Compliance (AoC) covering several Oracle Cloud Infrastructure services and the Oracle RightNow Service Cloud Service. As a PCI Level 1 Service Provider, customers can now use these services for workloads that store, process or transmit cardholder data.

Reference: https://www.oracle.com/cloud/cloud-infrastructure-compliance/

Correct Answer: C

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. This solution supports data transfer when you are migrating a large volume of data and when using disks is not a practical alternative. You do not need to write any code or purchase any hardware. Oracle supplies the transfer appliance and software required to manage the transfer. https:// docs.cloud.oracle.com/en-us/iaas/Content/DataTransfer/Concepts/overview.htm Oracle Cloud Infrastructure Data Transfer Appliance securely moves terabytes or petabytes data between on- premise data centers and the cloud. The service reduces data migration times from weeks or months to just hours and is available for data import to the cloud and data export from the cloud.

Reference: https://www.oracle.com/in/cloud/storage/data-transfer.html

Correct Answer: D

When you create an instance, the instance is automatically attached to a virtual network interface card (VNIC) in the cloud network's subnet and given a private IP address from the subnet's CIDR. You can let the IP address be automatically assigned, or you can specify a particular address of your choice. The private IP address lets instances within the cloud network communicate with each other.

Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Tasks/launchinginstance.htm Instances use IP addresses for communication. Each instance has at least one private IP address and optionally one or more public IP addresses. A private IP address enables the instance to communicate with other instances inside the VCN, or with hosts in your on-premises network (via an IPSec VPN or Oracle Cloud Infrastructure FastConnect). A public IP address enables the instance to communicate with hosts on the internet. Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Tasks/managingIPaddresses.htm

Correct Answer: D

https://docs.oracle.com/en/cloud/paas/atp-cloud/index.html

Correct Answer: B

You must create a dedicated virtual machine host before you can place any instances on it. When creating the dedicated virtual machine host, you select an availability domain and fault domain to launch it in. All the VM instances that you place on the host will subsequently be created in this availability domain and fault domain. You also select a compartment when you create the dedicated virtual machine host, but you can move the host to a new compartment later without impacting any of the instances placed on it. You can also create the instances in a different compartment than the dedicated virtual machine host, or move them to difference compartments after they have been launched. You are billed for the dedicated virtual machine host as soon as you create it, but you are not billed for any of the individual VM instances you place on it. You will still be billed for image licensing costs if they apply to the image you are using for the VM instances.

Read more: https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Concepts/dedicatedvmhosts.htm

Correct Answer: A

On an Exadata DB system, all databases share dedicated storage servers which include flash storage. By default, the databases are given equal priority with respect to these resources. The Exadata storage management software uses a first come, first served approach for query processing. If a database executes a major query that overloads I/O resources, overall system performance can be slowed down. The I/O Resource Management (IORM) allows you to assign priorities to your databases to ensure critical queries are processed first when workloads exceed their resource allocations. You assign priorities by creating directives that specify the number of shares for each database. The number of shares corresponds to a percentage of resources given to that database when I/O resources are stressed. Directives work together with an overall optimization objective you set for managing the resources. The following objectives are available: 1) Auto - Recommended. IORM determines the optimization objective and continuously and dynamically determines the optimal settings, based on the workloads observed, and resource plans enabled. 2) Balanced - For critical OLTP and DSS workloads. This setting balances low disk latency and high throughput. This setting limits disk utilization of large I/Os to a lesser extent than low latency to achieve a balance between good latency and good throughput. 3) High throughput - For critical DSS workloads that require high throughput. 4) Low latency - For critical OLTP workloads. This setting provides the lowest possible latency by significantly limiting disk utilization. Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Tasks/examanagingiorm.htm

Correct Answer: BD