Oracle Oracle Cloud Solutions Infrastructure 1Z0-1085-22 Questions & Answers

• Question 21:

  Which resource do you manage in an Infrastructure-as-a-services (IAAS) offering?

  A. Operating system

  B. Network

  C. Storage

  D. Servers

  Correct Answer: A

  Infrastructure as a service (IaaS) is a type of cloud service model in which computing resources are hosted

  in the cloud. Businesses can use the IaaS model to shift some or all of their use of on- premises or

  colocated data center infrastructure to the cloud, where it is owned and managed by a cloud provider.

  These infrastructure elements can include compute, network, and storage hardware as well as other

  components and software.

  How Does IaaS Work?

  In a typical IaaS model, a business--which can be of any size--consumes services like compute, storage,

  and databases from a cloud provider. The cloud provider offers those services by hosting hardware and

  software in the cloud. The business will no longer need to purchase and manage its own equipment, or

  space to host the equipment, and the cost will shift to a pay-as-you-go model.

  When the business needs less, it pays for less. And when it grows, it can provision additional computing

  resources and other technologies in minutes.

  

  Reference: https://www.oracle.com/in/cloud/what-is-iaas/

• Question 22:

  Which statement is correct regarding the oracle cloud infrastructure Compute services?

  A. When you stop a compute instance, all data on the boot volume is lost

  B. You can attach a maximum of one public to each compute instance

  C. You can launch either virtual machines or bare metal instances

  D. You cannot attach a block volume to a compute instance

  Correct Answer: C

  Oracle Cloud Infrastructure Compute lets you provision and manage compute hosts, known as instances You can launch instances as needed to meet your compute and application requirements. After you launch an instance, you can access it securely from your computer, restart it, attach and detach volumes, and terminate it when you're done with it. Any changes made to the instance's local drives are lost when you terminate it. Any saved changes to volumes attached to the instance are retained. Oracle Cloud Infrastructure offers both bare metal and virtual machine instances: 1) Bare Metal: A bare metal compute instance gives you dedicated physical server access for highest performance and strong isolation. 2) Virtual Machine: A virtual machine (VM) is an independent computing environment that runs on top of physical bare metal hardware. The virtualization makes it possible to run multiple VMs that are isolated from each other. VMs are ideal for running applications that do not require the performance and resources (CPU, memory, network bandwidth, storage) of an entire physical machine. An Oracle Cloud Infrastructure VM compute instance runs on the same hardware as a bare metal instance, leveraging the same cloud-optimized hardware, firmware, software stack, and networking infrastructure. Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Concepts/computeoverview.htm

• Question 23:

  You want to leverage a managed Real Application Cluster (RAC) offering in Oracle Cloud Infrastructure. which OCI Managed database service would you choose?

  A. Autonomous Transaction Processing (shared)

  B. VM DB System

  C. Autonomous Data Warehousing (shared)

  D. Bare Metal DB Systems

  Correct Answer: B

  There are 2 types of DB systems on virtual machines:

  A 1-node VM DB system consists of one VM.

  A 2-node VM DB system consists of two VMs clustered with RAC enabled.

  Reference:

  https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Concepts/overview.htm

  Oracle Cloud Infrastructure offers single-node DB systems on either bare metal or virtual machines, and 2node RAC DB systems on virtual machines. If you need to provision a DB system for development or

  testing purposes, then a special fast provisioning single-node virtual machine system is available.

  You can manage these systems by using the Console, the API, the Oracle Cloud Infrastructure CLI, the

  Database CLI (DBCLI), Enterprise Manager, Enterprise Manager Express, or SQL Developer.

  Reference:

  https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Concepts/overview.htm

• Question 24:

  Which Oracle cloud infrastructure capability can be used to protect against power failures within an availability Domain?

  A. Data Plane

  B. Fault Domains

  C. Services Cells

  D. Top of Rack Switch

  Correct Answer: B

  A fault domain is a grouping of hardware and infrastructure within an availability domain. Each availability domain contains three fault domains. Fault domains provide anti-affinity: they let you distribute your instances so that the instances are not on the same physical hardware within a single availability domain. A hardware failure or Compute hardware maintenance event that affects one fault domain does not affect instances in other fault domains. In addition, the physical hardware in a fault domain has independent and redundant power supplies, which prevents a failure in the power supply hardware within one fault domain from affecting other fault domains. To control the placement of your compute instances, bare metal DB system instances, or virtual machine DB system instances, you can optionally specify the fault domain for a new instance or instance pool at launch time. If you don't specify the fault domain, the system selects one for you. Oracle Cloud Infrastructure makes a best-effort anti-affinity placement across different fault domains, while optimizing for available capacity in the availability domain. To change the fault domain for an instance, terminate it and launch a new instance in the preferred fault domain. Use fault domains to do the following things: Protect against unexpected hardware failures or power supply failures. Protect against planned outages because of Compute hardware maintenance.

  Reference: https://blogs.oracle.com/cloud-infrastructure/using-availibility-domains-and-fault-domains-to- improveapplication-resiliency

• Question 25:

  Which statement is true for an oracle cloud Infrastructure (OCI) compute instance?

  A. Compute instance always get a public IP address

  B. Compute instance does not use a boot volume

  C. Compute instance cannot leverage auto scaling feature

  D. Compute instance always get a private IP address

  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

• Question 26:

  Oracle Cloud Infrastructure is complement with which three industry standard?

  A. USA E-WALLED

  B. PRACE UK

  C. HIPPA

  D. PCI-DSS

  E. IG Toolkit-UK

  Correct Answer: CDE

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

• Question 27:

  What purpose does an Oracle Cloud Infrastructure (OCI) Dynamic Routing Gateway Serve?

  A. Enables OCI Compute Instance to privately connect to OCI Object Storage

  B. Enables OCI Compute instance to connect to on-promises environments

  C. Enable OCI Compute instances to connect to the internal

  D. Enables OCI Compute instances to be reached from internet

  Correct Answer: B

  You can think of a Dynamic Routing Gateway (DRG) as a virtual router that provides a path for private traffic (that is, traffic that uses private IPv4 addresses) between your VCN and networks outside the VCN's region. For example, if you use an IPSec VPN or Oracle Cloud Infrastructure FastConnect (or both) to connect your on-premises network to your VCN, that private IPv4 address traffic goes through a DRG that you create and attach to your VCN. For scenarios for using a DRG to connect a VCN to your on-premises network, see Networking Scenarios. For important details about routing to your on-premises network, see Routing Details for Connections to Your On-Premises Network. Also, if you decide to peer your VCN with a VCN in another region, your VCN's DRG routes traffic to the other VCN over a private backbone that connects the regions (without traffic traversing the internet). For information about connecting VCNs in different regions, see Remote VCN Peering (Across Regions). Reference: https://docs.cloud.oracle.com/en-us/iaas/tools/oci-cli/2.9.1/oci_cli_docs/cmdref/network/drg.html

• Question 28:

  Which feature is not component of Oracle cloud Infrastructure identity and Access management service?

  A. federation

  B. User Credential

  C. Network Security Group

  D. Policies

  Correct Answer: C

  Components of IAM RESOURCE The cloud objects that your company's employees create and use when interacting with Oracle Cloud Infrastructure. For example: compute instances, block storage volumes, virtual cloud networks (VCNs), subnets, route tables, etc. USER An individual employee or system that needs to manage or use your company's Oracle Cloud Infrastructure resources. Users might need to launch instances, manage remote disks, work with your virtual cloud network, etc. End users of your application are not typically IAM users. Users have one or more IAM credentials (see User Credentials). GROUP A collection of users who all need the same type of access to a particular set of resources or compartment. DYNAMIC GROUP A special type of group that contains resources (such as compute instances) that match rules that you define (thus the membership can change dynamically as matching resources are created or deleted). These instances act as "principal" actors and can make API calls to services according to policies that you write for the dynamic group. NETWORK SOURCE A group of IP addresses that are allowed to access resources in your tenancy. The IP addresses can be public IP addresses or IP addresses from a VCN within your tenancy. After you create the network source, you use policy to restrict access to only requests that originate from the IPs in the network source. COMPARTMENT A collection of related resources. Compartments are a fundamental component of Oracle Cloud Infrastructure for organizing and isolating your cloud resources. You use them to clearly separate resources for the purposes of measuring usage and billing, access (through the use of policies), and isolation (separating the resources for one project or business unit from another). A common approach is to create a compartment for each major part of your organization. For more information, see Setting Up Your Tenancy. TENANCY The root compartment that contains all of your organization's Oracle Cloud Infrastructure resources. Oracle automatically creates your company's tenancy for you. Directly within the tenancy are your IAM entities (users, groups, compartments, and some policies; you can also put policies into compartments inside the tenancy). You place the other types of cloud resources (e.g., instances, virtual networks, block storage volumes, etc.) inside the compartments that you create. POLICY A document that specifies who can access which resources, and how. Access is granted at the group and compartment level, which means you can write a policy that gives a group a specific type of access within a specific compartment, or to the tenancy itself. If you give a group access to the tenancy, the group automatically gets the same type of access to all the compartments inside the tenancy. For more information, see Example Scenario and How Policies Work. The word "policy" is used by people in different ways: to mean an individual statement written in the policy language; to mean a collection of statements in a single, named "policy" document (which has an Oracle Cloud ID (OCID) assigned to it); and to mean the overall body of policies your organization uses to control access to resources. HOME REGION The region where your IAM resources reside. All IAM resources are global and available across all regions, but the master set of definitions reside in a single region, the home region. You must make changes to your IAM resources in your home region. The changes will be automatically propagated to all regions. For more information, see Managing Regions. FEDERATION A relationship that an administrator configures between an identity provider and a service provider. When you federate Oracle Cloud Infrastructure with an identity provider, you manage users and groups in the identity provider. You manage authorization in Oracle Cloud Infrastructure's IAM service. Oracle Cloud Infrastructure tenancies are federated with Oracle Identity Cloud Service by default. Reference:

  https://docs.cloud.oracle.com/en-us/iaas/Content/Identity/Concepts/overview.htm

• Question 29:

  Oracle Cloud Infrastructure Budgets can be set on which two options?

  A. Free-form tags

  B. Compartments

  C. Tenancy

  D. Virtual Cloud Network

  E. Cost-tracking tags

  Correct Answer: BE

  A budget can be used to set soft limits on your Oracle Cloud Infrastructure spending. You can set alerts on your budget to let you know when you might exceed your budget, and you can view all of your budgets and spending from one single place in the Oracle Cloud Infrastructure console. How Budgets Work: Budgets are set on cost-tracking tags or on compartments (including the root compartment) to track all spending in that cost-tracking tag or for that compartment and its children. All budgets alerts are evaluated every 15 minutes. To see the last time a budget was evaluated, open the details for a budget. You will see fields that show the current spend, the forecast and the "Spent in period" field which shows you the time

  period over which the budget was evaluated. When a budget alert fires, the email recipients configured in

  the budget alert receive an email.

  Reference:

  https://docs.cloud.oracle.com/en-us/iaas/Content/Billing/Concepts/budgetsoverview.htm

• Question 30:

  Which service is the most effective for moving large amounts of data from your on-premises to Oracle Cloud Infrastructure (OCI)?

  A. Data Safe

  B. Dynamic Routing Gateway

  C. Data Transfer appliance

  D. Internet Gateway

  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