Oracle Oracle Certifications 1Z0-1085-24 Questions & Answers

• Question 11:

  Which of the following is an example of an edge service in OCI?

  A. DNS Zone Management

  B. Virtual Machines

  C. OCI compute instances

  D. Oracle Data Guard

  Correct Answer: A

  The Oracle Cloud Infrastructure Domain Name System (DNS) service lets you create and manage your DNS zones. You can create zones, add records to zones, and allow Oracle Cloud Infrastructure's edge network to handle your domain's DNS queries.

  

  Reference: https://www.oracle.com/a/ocom/docs/cloud/edge-services-100.pdf

• Question 12:

  You are analyzing your Oracle Cloud Infrastructure (OCI) usage with Cost Analysis tool in the OCI console. Which of the following is NOT a default feature of the tool?

  A. Filter costs by applications

  B. Filter costs by tags

  C. Filter costs by compartments

  D. Filter costs by date

  Correct Answer: A

  Cost Analysis is an easy-to-use visualization tool to help you track and optimize your Oracle Cloud Infrastructure spending, allows you to generate charts, and download accurate, reliable tabular reports of aggregated cost data on your Oracle Cloud Infrastructure consumption. Use the tool for spot checks of spending trends and for generating reports

  

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

• Question 13:

  Which security service is offered by Oracle Cloud Infrastructure?

  A. Certificate Management System

  B. Key Management

  C. Managed Active Directory

  D. Managed Intrusion Detection

  Correct Answer: B

  Oracle Cloud Infrastructure Key Management is a managed service that enables you to encrypt your data using keys that you control.

  

  Reference: https://www.oracle.com/in/cloud/security/cloud-services/key-management.html

• Question 14:

  ___________________ is a fully-managed, scalable, and highly available service that you can use to deploy your containerized applications to the cloud.

  A. Oracle Cloud Infrastructure Container Engine for Kubernetes

  B. Oracle Cloud Infrastructure Container Engine for Containerization

  C. Oracle Cloud Infrastructure Container Engine for Deployment

  D. Oracle Cloud Infrastructure Container Engine for Docker

  Correct Answer: A

  Oracle Cloud Infrastructure Container Engine for Kubernetes is a fully-managed, scalable, and highly available service that you can use to deploy your containerized applications to the cloud. Use Container Engine for Kubernetes (sometimes abbreviated to just OKE) when your development team wants to reliably build, deploy, and manage cloud-native applications. You specify the compute resources that your applications require, and Container Engine for Kubernetes provisions them on Oracle Cloud Infrastructure in an existing OCI tenancy. You can access Container Engine for Kubernetes to define and create Kubernetes clusters using the Console and the REST API. You can access the clusters you create using the Kubernetes command line (kubectl), the Kubernetes Dashboard, and the Kubernetes API. Container Engine for Kubernetes is integrated with Oracle Cloud Infrastructure Identity and Access Management (IAM), which provides easy authentication with native Oracle Cloud Infrastructure identity functionality. Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/ContEng/Concepts/contengoverview.htm

• Question 15:

  Your company has deployed a business critical application in Oracle Cloud Infrastructure. What should you do to ensure that your application has the highest level of resilience and availability?

  A. Deploy the application across multiple Availability Domains and Subnets

  B. Deploy the application across multiple Virtual Cloud Networks

  C. Deploy the application across multiple Regions and Availability Domains

  D. Deploy the application across multiple Availability Domains and Fault Domains

  Correct Answer: C

  To design a high availability architecture, three key elements should be considered-- redundancy, monitoring, and failover: 1) Redundancy means that multiple components can perform the same task. The problem of a single point of failure is eliminated because redundant components can take over a task performed by a component that has failed. 2) Monitoring means checking whether or not a component is working properly. 3) Failover is the process by which a secondary component becomes primary when the primary component fails. The best practices introduced here focus on these three key elements. Although high availability can be achieved at many different levels, including the application level and the cloud infrastructure level, here we will focus on the cloud infrastructure level. An Oracle Cloud Infrastructure region is a localized geographic area composed of one or more availability domains, each composed of three fault domains. High availability is ensured by a redundancy of fault domains within the availability domains. An availability domain is one or more data centers located within a region. Availability domains are isolated from each other, fault tolerant, and unlikely to fail simultaneously. Because availability domains do not share physical infrastructure, such as power or cooling, or the internal availability domain network, a failure that impacts one availability domain is unlikely to impact the availability of others. A fault domain is a grouping of hardware and infrastructure within an availability domain. Each availability domain contains three fault domains. Fault domains let you distribute your instances so that they are not on the same physical hardware within a single availability domain. As a result, an unexpected hardware failure or a Compute hardware maintenance that affects one fault domain does not affect instances in other fault domains. You can optionally specify the fault domain for a new instance at launch time, or you can let the system select one for you. All the availability domains in a region are connected to each other by a low-latency, high bandwidth network. This predictable, encrypted interconnection between availability domains provides the building blocks for both high availability and disaster recovery. Reference: https://docs.oracle.com/en/solutions/design-ha/index.html#GUID-76ECDDB4-4CB1-4D93-9A6D- A8B620F72369

• Question 16:

  Which statement below is not true for Oracle Cloud infrastructure Compartments?

  A. Resources can be moved from one compartment to another

  B. Compartments cannot be nested

  C. Each OCI resource belongs to a single compartment

  D. Resources and compartments can be added and deleted anytime

  Correct Answer: B

  When creating a compartment, you must provide a name for it (maximum 100 characters, including letters, numbers, periods, hyphens, and underscores) that is unique within its parent compartment. You must also provide a description,

  which is a non-unique, changeable description for the compartment, from 1 through 400 characters. Oracle will also assign the compartment a unique ID called an Oracle Cloud ID.

  You can create subcompartments in compartments to create hierarchies that are six levels deep.

  Reference:

  https://docs.cloud.oracle.com/en-us/iaas/Content/Identity/Tasks/managingcompartments.htm When you first start working with Oracle Cloud Infrastructure, you need to think carefully about how you want to use compartments to organize and

  isolate your cloud resources. Compartments are fundamental to that process. Most resources can be moved between compartments. However, it's important to think through your compartment design for your organization up front, before

  implementing anything. For more information, see Setting Up Your Tenancy. The Console is designed to display your resources by compartment within the current region. When you work with your resources in the Console, you must choose

  which compartment to work in from a list on the page. That list is filtered to show only the compartments in the tenancy that you have permission to access. If you're an administrator, you'll have permission to view all compartments and work

  with any compartment's resources, but if you're a user with limited access, you probably won't. Compartments are tenancy-wide, across regions. When you create a compartment, it is available in every region that your tenancy is subscribed

  to. You can get a cross-region view of your resources in a specific compartment with the compartment explorer. See Viewing All Resources in a Compartment. You can create subcompartments in compartments to create hierarchies that are

  six levels deep.

  

  Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Identity/Tasks/managingcompartments.htm

• Question 17:

  Which option provides the best performance for running OTLP workloads in Oracle Cloud Infrastructure (OCI)?

  A. OCI Autonomous Data Warehouse

  B. OCI Virtual Machine Instance

  C. OCI Dedicated Virtual Host

  D. OCI Autonomous Transaction Processing

  Correct Answer: D

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

• Question 18:

  How is total network throughput allocated to a Virtual Machine (VM) Instance?

  A. Network bandwidth is variable

  B. Network bandwidth is proportional to the number of OCPUs in the Instance shape

  C. When launching a compute instance, customers may select the desired maximum network bandwidth

  D. Each VM is allocated 10 Gbps of network bandwidth regardless of the selected shape

  Correct Answer: B

  A shape is a template that determines the number of CPUs, amount of memory, and other resources that are allocated to an instance. The network bandwidth is directly proportional to the number of OCPUs in the instance shape!

  

  

  Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/References/computeshapes.htm

• Question 19:

  What does compute instance vertical scaling mean?

  A. Providing Fault tolerance

  B. Adding additional compute instances

  C. Enabling Disaster recovery

  D. Changing to a large or smaller shape

  Correct Answer: D

  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

• Question 20:

  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/