[Jan-2022] Verified 1Z0-1085-20 dumps Q&As - 1Z0-1085-20 dumps with Correct Answers
The Best Oracle Cloud Solutions Infrastructure Study Guide for the 1Z0-1085-20 Exam
NEW QUESTION 31
You want to migrate mission-critical Oracle E- Business Suite application to Oracle Cloud Infrastructure (OCI) with full control and access to the underlying infrastructure.
Which option meets this requirement?
- A. OCI Exadata DB Systems and OCI compute instances
- B. Replace E-Business Suite with an Oracle SaaS application
- C. OCI Exadata DB Systems and Oracle Functions
- D. Oracle Exadata Cloud at customer, Storage Gateway and API Gateway
Answer: A
NEW QUESTION 32
Which resource do you manage in an Infrastructure-as-a-services (IAAS) offering?
- A. Storage
- B. Servers
- C. Network
- D. Operating system
Answer: D
Explanation:
Explanation
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.
NEW QUESTION 33
What does compute instance vertical scaling mean?
- A. Changing to a large or smaller shape
- B. Providing Fault tolerance
- C. Adding additional compute instances
- D. Enabling Disaster recovery
Answer: A
Explanation:
Explanation
Changing the Shape of an Instance (Horizontal Scaling)
You can change the shape of a virtual machine (VM) instance without having to rebuild your instances or redeploy your applications. This lets you scale up your Compute resources for increased performance, or scale down to reduce cost.
Autoscaling (vertical scaling)
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.
As load increases, instances are automatically provisioned: the instance pool scales out. As load decreases, instances are automatically removed: the instance pool scales in.
https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Tasks/resizinginstances.htm
NEW QUESTION 34
A new customer has logged into Oracle Cloud Infrastructure (OCI) as an administrator for the first time. The admin would like to deploy infrastructure into a region other than their home region.
What is the first step they must take in order to accomplish this task?
- A. Subscribe to the desired region.
- B. Use API endpoints to create resources in the desired region.
- C. Navigate to the desired region and begin creating resources.
- D. File a service request for access to each additional region.
Answer: C
Explanation:
Explanation/Reference: https://docs.oracle.com/en/cloud/paas/content-cloud/administer/create-instance-oracle-cloud- console.html#GUID-4855750C-F400-4FB4-85AA-96CC98FC5A06
NEW QUESTION 35
Which resource do you manage in an Infrastructure-as-a-services (IAAS) offering?
- A. Storage
- B. Servers
- C. Network
- D. Operating system
Answer: D
Explanation:
Explanation
https://www.oracle.com/cloud/what-is-iaas/
NEW QUESTION 36
Which two should be considered when designing a fault-tolerant solution in Oracle Cloud lntrostiurture (OCI)?
- A. ensuring your solution components are distributed across OCI Fault Domains
- B. using multiple OCI Availability Domains (AD), where available, to deploy your solution
- C. creating a manual cluster of compute instances
- D. performing data integrity check when using OCI File Storage Service
- E. writing custom scripts that will monitor your solution
Answer: A,B
NEW QUESTION 37
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 always get a private IP address
- D. Compute instance cannot leverage auto scaling feature
Answer: C
Explanation:
Explanation
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.
NEW QUESTION 38
Which feature is NOT a component of Oracle Cloud Infrastructure (OCI) Identity and Access management service?
- A. Policies
- B. User Credentials
- C. Federation
- D. Network Security Group
Answer: C
NEW QUESTION 39
Which Oracle Cloud Infrastructure service allows you to run code without provisioning any underlying infrastructure resources?
- A. Oracle Functions
- B. Storage Gateway
- C. Oracle Container Engine for Kubernetes
- D. Compute service
Answer: A
Explanation:
Explanation
Oracle Functions is a fully managed, multi-tenant, highly scalable, on-demand, Functions-as-a-Service platform. It is built on enterprise-grade Oracle Cloud Infrastructure and powered by the Fn Project open source engine. Use Oracle Functions (sometimes abbreviated to just Functions) when you want to focus on writing code to meet business needs.
The serverless and elastic architecture of Oracle Functions means there's no infrastructure administration or software administration for you to perform. You don't provision or maintain compute instances, and operating system software patches and upgrades are applied automatically. Oracle Functions simply ensures your app is highly-available, scalable, secure, and monitored. With Oracle Functions, you can write code in Java, Python, Node, Go, and Ruby (and for advanced use cases, bring your own Dockerfile, and Graal VM). You can then deploy your code, call it directly or trigger it in response to events, and get billed only for the resources consumed during the execution.
NEW QUESTION 40
Which is NOT covered by Oracle Cloud Infrastructure Service Level Agreement (SLA)?
- A. Reliability
- B. Availability
- C. Performance
- D. Manageability
Answer: A
Explanation:
Explanation
https://www.oracle.com/assets/paas-iaas-pub-cld-srvs-pillar-4021422.pdf
NEW QUESTION 41
Which describes a key benefit of using Oracle Cloud Infrastructure (OCI)?
- A. Only bare metal workloads are supported on OCI.
- B. OCI offers consistent performance with a predictable pricing model.
- C. With OCI, you can run only cloud-native workloads.
- D. With OCI, you can only run Java based workloads on bare metal.
Answer: B
Explanation:
Explanation
https://www.oracle.com/in/cloud/pricing.html
- OCI offers consistent performance with a predictable pricing model - is the best suited answer.
- Only bare metal workloads are supported in OCI - False, since you can work with VMs etc too
- With OCI, you can run cloud native workloads - False, since you can work with on-premise by connecting it to OCI too.
- With OCI, you can only run Java based workloads on bare metal - False since Java is not the only programming language supported by OCI.
NEW QUESTION 42
Which statement accurately describes an Oracle Cloud Infrastructure Region?
- A. Each Availability Domain has a single Fault Domain.
- B. Each Fault Domain has multiple Availability Domains.
- C. Each Availability Domain has three Fault Domains.
- D. Each region has a single Fault Domain.
Answer: C
Explanation:
Explanation
Oracle Cloud Infrastructure is hosted in regions and availability domains. A region is a localized geographic area, and an availability domain is one or more data centers located within a region. A region is composed of one or more availability domains. Most Oracle Cloud Infrastructure resources are either region-specific, such as a virtual cloud network, or availability domain-specific, such as a compute instance. Traffic between availability domains and between regions is encrypted.
Availability domains are isolated from each other, fault tolerant, and very unlikely to fail simultaneously.
Because availability domains do not share infrastructure such as power or cooling, or the internal availability domain network, a failure at one availability domain within a region is unlikely to impact the availability of the others within the same region.
The availability domains within the same region are connected to each other by a low latency, high bandwidth network, which makes it possible for you to provide high-availability connectivity to the internet and on-premises, and to build replicated systems in multiple availability domains for both high-availability and disaster recovery.
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.
NEW QUESTION 43
What two statements regarding the Virtual Cloud Network (VCN) are true?
- A. You can only create one VCN per region.
- B. A single VCN can contain both private and public Subnets.
- C. The VCN is the IPSec-based connection with a remote on premises location.
- D. VCN is a regional resource that span across all the Availability Domains in a Region.
- E. VCN is a global resource that span across all the Regions
Answer: B,D
Explanation:
Explanation
When you work with Oracle Cloud Infrastructure, one of the first steps is to set up a virtual cloud network (VCN) for your cloud resources.
VIRTUAL CLOUD NETWORK (VCN) :
A virtual, private network that you set up in Oracle data centers. It closely resembles a traditional network, with firewall rules and specific types of communication gateways that you can choose to use. A VCN resides in a single Oracle Cloud Infrastructure region and covers a single, contiguous IPv4 CIDR block of your choice. See Allowed VCN Size and Address Ranges. The terms virtual cloud network, VCN, and cloud network are used interchangeably in this documentation. For more information, see VCNs and Subnets.
SUBNETS :
Subdivisions you define in a VCN (for example, 10.0.0.0/24 and 10.0.1.0/24). Subnets contain virtual network interface cards (VNICs), which attach to instances. Each subnet consists of a contiguous range of IP addresses that do not overlap with other subnets in the VCN. You can designate a subnet to exist either in a single availability domainavailability domain or across an entire region (regional subnets are recommended). Subnets act as a unit of configuration within the VCN: All VNICs in a given subnet use the same route table, security lists, and DHCP options (see the definitions that follow). You can designate a subnet as either public or private when you create it. Private means VNICs in the subnet can't have public IP addresses. Public means VNICs in the subnet can have public IP addresses at your discretion. See Access to the Internet.
NEW QUESTION 44
Which service is the most effective for moving large amounts of data from your on-premises to Oracle Cloud Infrastructure (OCI)?
- A. Dynamic Routing Gateway
- B. Internet Gateway
- C. Data Transfer appliance
- D. Data Safe
Answer: C
Explanation:
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
NEW QUESTION 45
Which service is the most effective for moving large amounts of data from your on-premises to Oracle Cloud Infrastructure (OCI)?
- A. Dynamic Routing Gateway
- B. Internet Gateway
- C. Data Transfer appliance
- D. Data Safe
Answer: C
Explanation:
Explanation
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
NEW QUESTION 46
Which statement is correct regarding the oracle cloud infrastructure Compute services?
- A. You cannot attach a block volume to a compute instance
- B. When you stop a compute instance, all data on the boot volume is lost
- C. You can attach a maximum of one public to each compute instance
- D. You can launch either virtual machines or bare metal instances
Answer: D
Explanation:
Explanation
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.
NEW QUESTION 47
Which option provides the best performance for running OLTP workloads in Oracle Cloud Infrastructure?
- A. OCI Dedicated Virtual Host
- B. OCI Virtual Machine Instance
- C. OCI Exadata DB Systems
- D. OCI Autonomous Data Warehouse
Answer: C
Explanation:
ExplanationOn 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.
NEW QUESTION 48
Oracle Cloud Infrastructure is compliant with which three industry standards? (Choose three.)
- A. Health Care Compliance Association (HCCA)
- B. 150 27001:2013 certification
- C. Health Insurance Portability and Accountability Act (HIPAA)
- D. SOC 1 Type 2 and SOC 2 Type 2 attestations
- E. NERC Critical Infrastructure Protection Standards
Answer: B,C,D
Explanation:
Explanation/Reference: https://cloudcomputing-news.net/news/2017/apr/03/oracle-secures-iso-27001-hipaa-and-soc- certification-its-cloud-portfolio/
NEW QUESTION 49
Which statement about the Oracle Cloud Infrastructure (OCI) shared-security model is true?
- A. You are not responsible for any aspect of security in OCI
- B. You are responsible for securing all data that you place in OCI
- C. You are responsible for managing security controls within the physical OCI network
- D. You are responsible for securing the hypervisor within OCI compute service
Answer: B
Explanation:
ExplanationOracle Cloud Infrastructure offers best-in-class security technology and operational processes to secure its enterprise cloud services. However, for you to securely run your workloads in Oracle Cloud Infrastructure, you must be aware of your security and compliance responsibilities. By design, Oracle provides security of cloud infrastructure and operations (cloud operator access controls, infrastructure security patching, and so on), and you are responsible for securely configuring your cloud resources. Security in the cloud is a shared responsibility between you and Oracle.
In a shared, multi-tenant compute environment, Oracle is responsible for the security of the underlying cloud infrastructure (such as data-center facilities, and hardware and software systems) and you are responsible for securing your workloads and configuring your services (such as compute, network, storage, and database) securely.
In a fully isolated, single-tenant, bare metal server with no Oracle software on it, your responsibility increases as you bring the entire software stack (operating systems and above) on which you deploy your applications.
In this environment, you are responsible for securing your workloads, and configuring your services (compute, network, storage, database) securely, and ensuring that the software components that you run on the bare metal servers are configured, deployed, and managed securely.
The responsibilities can be divided as:
NEW QUESTION 50
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1Z0-1085-20 certification guide Q&A from Training Expert ValidExam: https://www.validexam.com/1Z0-1085-20-latest-dumps.html