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The 1Z0-1085-21 exam is held by Oracle Corporation. According to their official website, the test is designed to assess the candidate's knowledge of database technology.

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NEW QUESTION 20
In what two ways does Oracle Cloud Infrastructure (OCI) offer industry leading price-performance?
(Choose two.)

• A. OCI leverages advanced encryption that results in fast performance.
• B. OCI hypervisor provides industry leading performance.
• C. With OCI, pricing is low and predictable across all regions and services.
• D. OCI backs performance claims with Service Level Agreements.
• E. OCI does not over subscribe CPU, but only memory.

Answer: C,D

Explanation:
Reference: https://www.oracle.com/cloud/pricing.html
https://www.brightworkresearch.com/oracle/2019/02/21/does-oracles-bare-metal-outperform-awss- bare-metal/

 

NEW QUESTION 21
Which kind of scaling is supported by virtual machines in Oracle Cloud Infrastructure Compute service?

• A. Scaling up or down, and scaling in or out
• B. Only scaling up or down
• C. Only scaling in
• D. Only scaling out

Answer: A

Explanation:
Explanation
Horizontal scalingmeans that you scale by adding more machines into your pool of resources whereas Vertical scaling means that you scale by adding more power (CPU, RAM) to an existing machine.
An easy way to remember this is to think of a machine on a server rack, we add more machines across the horizontal direction and add more resources to a machine in the vertical direction.

With horizontal-scaling it is often easier to scale dynamically by adding more machines into the existing pool
- Vertical-scaling is often limited to the capacity of a single machine, scaling beyond that capacity often involves downtime and comes with an upper limit.

 

NEW QUESTION 22
Which three components are part of Oracle Cloud Infrastructure Identity and Access Management service?

• A. Roles
• B. Dynamic Groups
• C. Regional Subnets
• D. Policies
• E. Virtual Cloud Networks
• F. Users
• G. Compute Instances

Answer: B,D,F

Explanation:
Explanation
IAM components are
RESOURCE
Thecloud 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).
POLICY
A document that specifies who can access which resources, and how. Access is granted atthe 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 typeof 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.
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 addressesfrom 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 resourcesfor 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.
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 homeregion. 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'sIAM service. Oracle Cloud Infrastructure tenancies are federated with Oracle Identity Cloud Service by default.

 

NEW QUESTION 23
You have a mission-critical application which requires to be globally available atall times.
Which deployment strategy should you adopt?

• A. Use multiple Fault Domains In one Region.
• B. Use multiple Availability Domains In one Region.
• C. Use multiple Fault Domains In each Availability Domain in each Region.
• D. Use multiple Fault Domainsin any Availability Domain in multiple Regions.

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. Aregion 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 thatthe 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 24
Which is an example of Edge Services in Oracle Cloud Infrastructure (OCI)?

• A. Web Application Firewall
• B. Object Storage
• C. Virtual Firewall
• D. Virtual Cloud Network (VCN)

Answer: A

Explanation:
Explanation
Oracle Cloud Infrastructure Web Application Firewall (WAF) is a cloud-based, Payment Card Industry (PCI) compliant, global security service that protects applications from malicious and unwanted internet traffic.
WAF can protect any internet facing endpoint, providing consistent rule enforcement across a customer's applications.
WAF provides you with the ability to create and manage rules for internet threats including Cross-Site Scripting (XSS), SQL Injection and other OWASP-defined vulnerabilities. Unwanted bots can be mitigated while tactically allowed desirable bots to enter. Access rules can limit based on geography or the signature of the request.

 

NEW QUESTION 25
Which are fault tolerant,isolated data centers located but connected to each other by a low latency, high bandwidth network?

• A. Region
• B. Fault Domain
• C. Multi Region
• D. Availability Domain

Answer: D

Explanation:
Availability domains are isolated from each other, fault tolerant, and very unlikely to fail simultaneously or be impacted by the failure of another availability domain. When you configure your cloud services, use multiple availability domains to ensure high availability and to protect against resource failure.
Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/GSG/Concepts/concepts.htm

 

NEW QUESTION 26
Which Oracle Cloud Infrastructure (OCI) service can send you an alert when you might exceed your spendingthreshold?

• A. Streaming
• B. Monitoring
• C. Events
• D. Budgets

Answer: D

Explanation:
Explanation
Budgets can be used to set thresholds for 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 viewall of your budgets and spending from one single place in the Oracle Cloud Infrastructure console.

 

NEW QUESTION 27
Which feature is not component of Oracle cloud Infrastructure identity and Access management service?

• A. User Credential
• B. federation
• C. Network SecurityGroup
• D. Policies

Answer: C

Explanation:
Explanation
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. Endusers 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
Acollection 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 groupa 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" isused 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 ofpolicies 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 identityprovider. You manage authorization in Oracle Cloud Infrastructure's IAM service. Oracle Cloud Infrastructure tenancies are federated with Oracle Identity Cloud Service by default.

 

NEW QUESTION 28
Which Oracle Cloud Infrastructure (OCI) database solution will be most economical for a customer looking to have the elasticity of the cloud with minimal administration and maintenance effort for their DBA team?

• A. OCI Virtual Machine DB Systems
• B. OCI Bare Metal DB Systems
• C. OCI Autonomous Database
• D. OCI Exadata DB Systems

Answer: C

Explanation:
Oracle Cloud Infrastructure's Autonomous Database is a fully managed, preconfigured database environment with two workload types available, Autonomous Transaction Processing and Autonomous Data Warehouse. You do not need to configure or manage any hardware, or install any software. After provisioning, you can scale the number of CPU cores or the storage capacity of the database at any time without impacting availability or performance. Autonomous Database handles creating the database, as well as the following maintenance tasks: Backing up the database Patching the database Upgrading the database Tuning the database. References:
https://www.youtube.com/watch?v=KKDLIjy2yJM&list=PLKCk3OyNwIzuHYigVbdtDOZOfChcotfj2&index
=7 https://severalnines.com/database-blog/autonomous-oracle-database-cheaper-than-free

 

NEW QUESTION 29
Which feature allows you to group and logically isolate your Oracle Cloud Infrastructure (OCI) resources?

• A. Availability Domains
• B. Tenancy
• C. Identity and Access Management Groups
• D. Compartments

Answer: D

 

NEW QUESTION 30
Which capability can be used to protect against unexpected hardware or power supply failures within an Availability Domain?

• A. Fault Domains
• B. Top of Rack Switches
• C. Compartments
• D. Power Distribution Units

Answer: A

Explanation:
Fault domains can protect your application against unexpected hardware failures or outages caused by maintenance on the underlying computer hardware. Additionally, you can launch instances of all shapes within a fault domain. Oracle Cloud Infrastructure is typically designed with three availability domains per region, and each availability domain has three fault domains. When carrying out maintenance on the underlying computer hardware, Oracle Cloud Infrastructure ensures that only a single fault domain is impacted at one time to guarantee availability of your instances in the remaining fault domains.

Getting started is easy. When you create a new compute instance using the API, CLI or Console, you can specify the fault domain in which to place the instance. If you don't specify a fault domain, the instance will be distributed automatically in one of the three fault domains within that availability domain. Oracle Cloud Infrastructure makes a best-effort anti-affinity placement while optimizing for available capacity in the Availability Domain.
Reference:
https://blogs.oracle.com/cloud-infrastructure/introducing-fault-domains-for-virtual-machine-and-bare- metal-instances

 

NEW QUESTION 31
What two types of encryption keys are recognized by the Oracle Cloud Infrastructure (OCI) Vault service? (Choose all correct answers)

• A. Data Encryption keys
• B. Alias keys
• C. Wrapper keys
• D. Auth Tokens
• E. Master Encryption keys

Answer: A,E

 

NEW QUESTION 32
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. Data Transfer appliance
• C. Internet Gateway
• D. Dynamic Routing Gateway

Answer: B

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 anyhardware. 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.

 

NEW QUESTION 33
Which of these are part of Load Balancer core concepts? (Choose two.)

• A. Provides traffic distribution for Internet connections only
• B. Provides traffic distribution to multiple Regions
• C. Provides traffic distribution to Backend Server
• D. Can be configured as Public or Private
• E. Load balancers supports only HTTP connections

Answer: C,D

Explanation:
Reference: https://docs.oracle.com/en-
us/iaas/Content/Balance/Concepts/balanceoverview.htm#ariaid-title2

 

NEW QUESTION 34
You are setting up a proof of concept (POC) and need to quickly establish a secure between an on-premises data center andOracle Cloud Infrastructure (OCI).
Which OCI service should you implement?

• A. FastConnect
• B. VCN Peering
• C. IPSec VPN
• D. Internet Gateway

Answer: C

Explanation:
Explanation
You can set up a single IPSec VPN with a simple layout that you might use for a proof of concept (POC).

 

NEW QUESTION 35
According to Shared security model, which two are a customer's responsibilities in Oracle Cloud Infrastructure (OCI)?

• A. Virtual Machine hypervisor
• B. Customer data
• C. Local NVMe data persistence
• D. Object Storage data durability
• E. Physical security of OCI data center facilities

Answer: B,D

Explanation:
Explanation
Customer and Oracle's responsibilities can be divided into the following areas:
Physical Security: Oracle is responsible for protecting the global infrastructure that runs all of the services offeredin Oracle Cloud Infrastructure. This infrastructure consists of the hardware, software, networking, and facilities that run Oracle Cloud Infrastructure services.
Identity and Access Management (IAM): As with all Oracle cloud services, you should protect your cloud access credentials and set up individual user accounts. You are responsible for managing and reviewing access for your own employee accounts and for all activities that occur under your tenancy. Oracle is responsible for providing effective IAM services such as identity management, authentication, authorization, and auditing.
Workload Security: You are responsible for protecting and securing the operating system and application layers of your compute instances from attacks and compromises. This protection includes patching applications and operating systems, operating system configuration, and protection against malware and network attacks. Oracle is responsible for providing secure images that are hardened and have the latest patches. Also, Oraclemakes it simple for you to bring the same third-party security solutions that you use today.
Data Classification and Compliance: You are responsible for correctly classifying and labeling your data and meeting any compliance obligations. Also, you are responsible for auditing your solutions to ensure that they meet your compliance obligations.
Host Infrastructure Security: You are responsible for securely configuring and managing your compute (virtual hosts, containers), storage (object, local storage, block volumes), and platform (database configuration) services. Oracle has a shared responsibility with you to ensure that the service is optimally configured and secured. This responsibility includes hypervisor security and the configuration of the permissions and network access controls required to ensure that hosts can communicate correctly and that devices are able to attach or mount the correct storage devices.
Network Security: You are responsible for securely configuring network elements such as virtualnetworking, load balancing, DNS, and gateways. Oracle is responsible for providing a secure network infrastructure.
Client and Endpoint Protection: Your enterprise uses various hardware and software systems, such as mobile devices and browsers, to access your cloud resources. You are responsible for securing all clients and endpoints that you allow to access Oracle Cloud Infrastructure services.

 

NEW QUESTION 36
......

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