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Oracle 1z0-1085-23 Exam Syllabus Topics:
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NEW QUESTION # 32
Which option provides the best performance for running OLTP workloads in Oracle Cloud Infrastructure?
- A. OCI Autonomous Data Warehouse
- B. OCI Virtual Machine Instance
- C. OCI Dedicated Virtual Host
- D. OCI Exadata DB Systems
Answer: D
Explanation:
Explanation
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.
NEW QUESTION # 33
Which two situations incur costs in Oracle Cloud Infrastructure (OCI)?
- A. Data egress to the internet
- B. Transferring data across regions
- C. Transferring data from one instance to another across different Availibility Domains in a Region
- D. Data ingress from the internet
- E. Transferring data from one instance to another in the same Availibility Domain
Answer: A,B
NEW QUESTION # 34
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
Answer: B
Explanation:
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.
NEW QUESTION # 35
Which Oracle Cloud Infrastructure (OCI) monitoring service feature uses metrics for monitoring and consists of a trigger action and notification method?
- A. Alarms
- B. Rippers
- C. Queries
- D. Namespaces
Answer: A
Explanation:
Alarms are the Oracle Cloud Infrastructure (OCI) monitoring service feature that uses metrics for monitoring and consists of a trigger action and notification method. Alarms allow you to set rules for metric data and receive notifications when the rules are met or breached. For example, you can create an alarm that triggers when the CPU utilization of a compute instance exceeds 80% for more than 5 minutes, and sends an email notification to a specified topic in Notifications service6
NEW QUESTION # 36
Which two security capabilities are offered by Oracle Cloud Infrastructure?
- A. Managed Active Directory service
- B. Certificate Management service
- C. Key Management service
- D. Always on data encryption for data-at-rest.
- E. Captcha
Answer: C,D
Explanation:
Oracle Cloud Infrastructure's security approach is based on seven core pillars. Each pillar has multiple solutions designed to maximize the security and compliance of the platform and to help customers to improve their security posture.
High Availability: Offer fault-independent data centers that enable high-availability scale-out architectures and are resilient against network attacks, ensuring constant uptime in the face of disaster and security attack.
Customer Isolation: Allow customers to deploy their application and data assets in an environment that commits full isolation from other tenants and Oracle's staff.
Data Encryption: Protect customer data at-rest and in-transit in a way that allows customers to meet their security and compliance requirements with respect to cryptographic algorithms and key management.
Security Controls: Offer customers effective and easy-to-use application, platform, and network security solutions that allow them to protect their workloads, have a secure application delivery using a global edge network, constrain access to their services, and segregate operational responsibilities to reduce the risk associated with malicious and accidental user actions.
Visibility: Offer customers comprehensive log data and security analytics that they can use to audit and monitor actions on their resources, allowing them to meet their audit requirements and reduce security and operational risk.
Secure Hybrid Cloud: Enable customers to use their existing security assets, such as user accounts and policies, as well as third-party security solutions, when accessing their cloud resources and securing their data and application assets in the cloud.
Verifiably Secure Infrastructure: Follow rigorous processes and use effective security controls in all phases of cloud service development and operation. Demonstrate adherence to Oracle's strict security standards through third-party audits, certifications, and attestations. Help customers demonstrate compliance readiness to internal security and compliance teams, their customers, auditors, and regulators.
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Security/Concepts/security_overview.htm
NEW QUESTION # 37
What is the primary goal for distributing resources across multiple Availability Domains in Oracle Cloud Infrastructure?
- A. To reduce latency for uses in different geographic locations
- B. To improve fault tolerance and high availability
- C. To increase storage capability for a region
- D. To segregate resources based on project or department
Answer: B
Explanation:
The primary goal for distributing resources across multiple availability domains in Oracle Cloud Infrastructure is to improve fault tolerance and high availability. An availability domain is one or more data centers located within a region that have fault-tolerant power and network connectivity. Availability domains are isolated from each other within a region, which provides protection from failures that affect multiple data centers at once. By distributing resources across multiple availability domains, users can ensure that their applications can continue to run even if one availability domain becomes unavailable.
NEW QUESTION # 38
Which is NOT a valid target for the Oracle Cloud Infrastructure (OCI) Cloud Guard service?
- A. Compartment and its sub-compartments
- B. Region
- C. Root Compartment
- D. Tenancy
Answer: D
NEW QUESTION # 39
Which Oracle Cloud Infrastructure compute shapes does not incur instance billing in a STOPPED state?
- A. GPU
- B. Standard
- C. Dense I/O
- D. HPC
Answer: B
Explanation:
Explanation
A shape is a template that determines the number of CPUs, amount of memory, and other resources that are allocated to an instance.
Standard shapes don't incur costs in a STOPPED state.
NEW QUESTION # 40
Which OCI Identity and access management capability helps you to organize multiple users into teams?
- A. Users
- B. Groups
- C. Policies
- D. Dynamic Groups
Answer: B
Explanation:
IAM Group is A collection of users who all need the same type of access to a particular set of resources or compartment.
IAM DYNAMIC GROUP is 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.
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Identity/Concepts/overview.htm GROUP:
A collection of users who all need the same type of access to a particular set of resources or compartment.
NEW QUESTION # 41
Which statement is NOT valid regarding the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. You can clone an existing block volume to a new, larger volume.
- B. You can expand an existing block volume in place with online resizing.
- C. You can decrease the size of a blockvolume.
- D. You can increase the size of a block volume.
Answer: C
Explanation:
This statement is not valid regarding the OCI Block Volume service. You cannot decrease the size of a block volume once it is created. You can only increase the size of a block volume, either by creating a new, larger volume from a backup or a clone of the original volume, or by expanding an existing block volume in place with online resizing12 The other statements are valid regarding the OCI Block Volume service. You can expand an existing block volume in place with online resizing, which allows you to increase the size and performance of a block volume without detaching it from an instance or interrupting I/O operations. You can also clone an existing block volume to a new, larger volume, which creates an exact point-in-time copy of the source volume and preserves all the data and properties of the source volume, except for the size and performance. You can also increase the size of a block volume by creating a new, larger volume from a backup of the original volume, which restores all the data from the backup to a new volume with a different size and performance12
NEW QUESTION # 42
You are required to host several files in a location that can be publicly accessible from anywhere in the world. Which Oracle Cloud Infrastructure (OCI) service should you use?
- A. Oracle Functions
- B. OCI Storage Gateway
- C. OCI File Storage
- D. OCI Block Volume
- E. OCI Object Storage
Answer: E
NEW QUESTION # 43
You have backup data that needs to be stored for at least six months. This data is not supposed to be accessed frequently, but needs to be available immediately when needed. You also want to reduce your storage costs.
Which Oracle Cloud Infrastructure (OCI) Object Storage tier can be used to meet these requirements?
- A. Auto-Tiering
- B. Standard tier
- C. Infrequent access tier
- D. Archive tier
Answer: D
NEW QUESTION # 44
A customer wants a dedicated connection with minimal network latency from their on-premises data center to Oracle Cloud Infrastructure (OCI).
Which service should they choose?
- A. Public internet
- B. OCI FastConnact
- C. Virtual Cloud Network Remote Peering
- D. IPSec Virtual Private Network (VPN)
Answer: B
Explanation:
Oracle Cloud Infrastructure FastConnect provides an easy way to create a dedicated, private connection between your data center and Oracle Cloud Infrastructure. FastConnect provides higher-bandwidth options, and a more reliable and consistent networking experience compared to internet-based connections.
NEW QUESTION # 45
Oracle Cloud Infrastructure is complement with which three industry standard?
- A. PRACE UK
- B. IG Toolkit-UK
- C. USA E-WALLED
- D. HIPPA
- E. PCI-DSS
Answer: B,D,E
Explanation:
https://www.oracle.com/cloud/cloud-infrastructure-compliance/
NEW QUESTION # 46
Which Oracle Cloud Infrastructure (OC!) service can be configured to send you an alert for high CPU usage?
- A. Analytics
- B. Eve
- C. Monitoring
- D. Logging
- E. Logging Analytics
Answer: C
Explanation:
Monitoring is the Oracle Cloud Infrastructure (OCI) service that can be configured to send you an alert for high CPU usage. Monitoring service collects metrics from various OCI resources and allows you to create alarms based on performance thresholds or anomalies. You can use Monitoring service to monitor the CPU utilization of your compute instances, databases, functions, load balancers, and other resources that emit metrics to Monitoring service6
NEW QUESTION # 47
You have an extremely high performance database workload that requires atleast 105 IOPS/GB and 100,000 IOPS per volume.
Which Oracle Cloud Infrastructure (OCI) Block Volume performance level can be used to meet this requirement?
- A. Ultra High Performance
- B. Higher Performance
- C. Lower cost
- D. Balanced
Answer: A
Explanation:
The Ultra High Performance level is the only OCI Block Volume performance level that can meet the requirement of at least 105 IOPS/GB and 100,000 IOPS per volume. The Ultra High Performance level is recommended for workloads with the highest I/O requirements, requiring the best possible performance. With this option, you can purchase between 30 - 120 VPUs (volume performance units) per GB/month. The VPUs determine the baseline performance of the volume, as well as the maximum burst performance. The Ultra High Performance level offers the following performance characteristics: 1 Baseline IOPS/GB: 75 Maximum IOPS/GB: 300 Maximum IOPS per volume: 480,000 Baseline throughput/GB: 0.6 MB/s Maximum throughput/GB: 2.4 MB/s Maximum throughput per volume: 3,680 MB/s To achieve the requirement of at least 105 IOPS/GB, you need to purchase at least 45 VPUs/GB. To achieve the requirement of 100,000 IOPS per volume, you need to have a volume size of at least 334 GB. Therefore, the Ultra High Performance level can satisfy both requirements with a minimum volume size of 334 GB and a minimum VPUs/GB of 45.
The other performance levels (Balanced, Higher Performance, and Lower Cost) cannot meet the requirement of at least 105 IOPS/GB and 100,000 IOPS per volume. The Balanced level offers 10 VPUs/GB, with a baseline of 60 IOPS/GB and a maximum of 75 IOPS/GB. The Higher Performance level offers 20 VPUs/GB, with a baseline of 75 IOPS/GB and a maximum of 150 IOPS/GB. The Lower Cost level offers 2 VPUs/GB, with a baseline of 2 IOPS/GB and a maximum of 10 IOPS/GB. None of these levels can provide the required performance for the workload1
NEW QUESTION # 48
Which offers the lowest pricing for storage (per GB)?
- A. Oracle Cloud Infrastructure Object Storage (standard tier)
- B. Oracle Cloud Infrastructure Block Volume
- C. Oracle Cloud Infrastructure File Storage
- D. Oracle Cloud Infrastructure Archive Storage
Answer: D
Explanation:
Oracle Cloud Infrastructure Archive Storage is the lowest pricing for storage (per GB) Reference:
https://www.oracle.com/cloud/storage/pricing.html
Archive storage as seen above is the cheapest!
NEW QUESTION # 49
Which factor does NOT impact the cost of running a virtual machine instance In Oracle Cloud infrastructure.
- A. The number of virtual machine running
- B. The operating system used by the instance
- C. The region used by the VM instance
- D. The size of the VM instance
Answer: A
Explanation:
The cost of running a virtual machine instance in Oracle Cloud Infrastructure depends on several factors, such as the size, shape, region, and operating system of the instance. The number of virtual machines running does not impact the cost of each individual instance1
NEW QUESTION # 50
Which is NOT a benefit associated with Oracle Autonomous Database?
- A. Self-loading
- B. Self-driving
- C. Self-repairing
- D. Self-securing
Answer: B
NEW QUESTION # 51
OCI budgets can be set on which two options?
- A. Cost-tracking tags
- B. Compartments
- C. Virtual Cloud Network
- D. Free-form tags
- E. Tenancy
Answer: A,B
Explanation:
In OCI 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.
Budgets are set on
* Cost-tracking tags
* Compartments (including the root compartment)
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Billing/Concepts/budgetsoverview.htm
NEW QUESTION # 52
What does compute instance horizonal scaling mean?
- A. changing compute instance size
- B. adding additional compute instances
- C. stopping/starting the instance
- D. backing up data to object storage
Answer: B
Explanation:
Cloud Horizontal Scaling refers to provisioning additional servers to meet your needs, often splitting workloads between servers to limit the number of requests any individual server is getting. In a cloud-based environment, this would mean adding additional instances instead of moving to a larger instance size.
Cloud Vertical Scaling refers to adding more CPU or memory to an existing server, or replacing one server with a more powerful server.
Reference:
https://cloudcheckr.com/cloud-cost-management/cloud-vs-data-center-what-is-scalability-in-cloud-computing/ Horizontal scaling means 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 # 53
Which of the following is INVALID regarding the Oracle Cloud Infrastructure (OCI) Identity Domains?
- A. An identity domain represents users and groups in OCI.
- B. Each OCI account includes a default identity domain.
- C. Customers cannot create additional identity domains.
- D. Identity domains are created inside of a compartment.
Answer: A
NEW QUESTION # 54
Which is NOT covered by Oracle Cloud Infrastructure (OCI) Service Level Agreement (SLA)?
- A. Availability
- B. Performance
- C. Manageability
- D. Reliability
Answer: D
Explanation:
https://www.oracle.com/assets/paas-iaas-pub-cld-srvs-pillar-4021422.pdf Enterprises demand more than just availability from their cloud infrastructure. Mission-critical workloads also require consistent performance, and the ability to manage, monitor, and modify resources running in the cloud at any time. Only Oracle offers end-to-end SLAs covering performance, availability, manageability of services.
NEW QUESTION # 55
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 then their home region.
What is the first Stop they must take in order to accomplish this task?
- A. File a service request for access to each additional region.
- B. Subscribe to the desired region.
- C. Navigate to the desired region and begin creating resources.
- D. Use API endpoints to create resources in the desired region.
Answer: B
Explanation:
When you sign up for Oracle Cloud Infrastructure, Oracle creates a tenancy for you in one region. This is your home region. Your home region is where your IAM resources are defined. When you subscribe to another region, your IAM resources are available in the new region, however, the master definitions reside in your home region and can only be changed there.
When you subscribe your tenancy to a new region, all the policies from your home region are enforced in the new region. If you want to limit access for groups of users to specific regions, you can write policies to grant access to specific regions only.
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Identity/Tasks/managingregions.htm To create an instance in another region, perform these preliminary steps:
1. Extend your subscription to another region.
2. Federate Oracle Identity Cloud Service (IDCS) from the new region with Oracle Cloud Infrastructure (OCI).
Also, when you purchase these services or sign up for a free promotion, you typically choose the data region closest to your location to access them. This becomes your primary data region. However, if required, you can extend your subscription to other geographical regions (within the same cloud account) and use the services there.
NEW QUESTION # 56
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