1Z0-1085-24 Online Practice Questions and Answers

Correct Answer: B

Network Security Groups (NSGs) act as virtual firewalls in OCI, controlling inbound and outbound traffic for specific resources within a VCN. You can define rules based on IPs, ports, and protocols.

Correct Answer: C

OCI Container Instances are designed for simpler workloads, whereas running containerized apps at scale on Kubernetes requires a container orchestration platform, which is a different use case.

Correct Answer: B

Dynamic Routing Gateway (DRG) is the component of Oracle Cloud Infrastructure Networking service that provides a private connection between a VCN and an on-premises network using VPN or FastConnect. It allows secure communication between the cloud and on-premises resources.

Correct Answer: A

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. Regions are independent of other regions and can be separated by vast distances--across countries or even continents.

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. 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.

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

Correct Answer: ADE

https://docs.oracle.com/en/solutions/deploy-ebusiness-suite-oci/index.html#GUID-0CA881FD- D96F-4885-BC77-62E3A66EFF95

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: CDE

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

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

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