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NEW QUESTION # 58
Which file protocol does Oracle Cloud Infrastructure File Storage Service use to enable file sharing across instances?
- A. Network File System (NFS)
- B. File Transfer Protocol (FTP)
- C. Server Message Block (SMB)
- D. Internet Small Computer Systems Interface (iSCSI)
Answer: A
Explanation:
Network File System (NFS) is the file protocol that Oracle Cloud Infrastructure File Storage Service uses to enable file sharing across instances. NFS is a distributed file system protocol that allows a user on a client computer to access files over a network in a manner similar to how local storage is accessed. The File Storage service supports the NFS version 3.0 protocol with Network Lock Manager (NLM) for file locking functionality2.
NEW QUESTION # 59
What characteristics are defined by an Oracle Cloud Infrastructure Compute shape?
- A. Public or private visibility of the Compute instance
- B. Number of vCPU, amount of RAM, bandwidth
- C. Number of OCPU, amount of RAM, bandwidth
- D. Availability Domain and Fault Domain locations
Answer: C
Explanation:
Oracle Compute Shape is coming with predefined or customize the number of OCPUs that are allocated to an instance. The amount of memory, network bandwidth, and number of VNICs scale proportionately with the number of OCPUs.
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/References/computeshapes.htm
NEW QUESTION # 60
Which TWO correctly describe the attributes of Oracle Cloud Infrastructure (OCI) compartments?
(Choose all correct answers)
- A. Compartments cannot have sub compartments.
- B. Compartments can be used to physically separate OCI resources.
- C. By default, your tenancy comes with a root compartment.
- D. Resources within one compartment cannot interact with resources in other compartments.
- E. Compartments can be used to logically separate OCI resources.
Answer: C,E
Explanation:
A compartment is a logical container that can hold OCI resources such as compute instances, block volumes, virtual cloud networks, etc. Compartments help you organize and control access to your resources based on business needs or security requirements3 By default, your tenancy comes with a root compartment that is the parent of all other compartments in your tenancy. You cannot delete the root compartment, but you can create subcompartments within it to further organize your resources3 Compartments can be used to logically separate OCI resources, not physically separate them. Resources within one compartment can interact with resources in other compartments, as long as the appropriate policies and network configurations are in place. For example, you can attach a compute instance in one compartment to a virtual cloud network in another compartment, or grant access to a user group in one compartment to manage resources in another compartment34
NEW QUESTION # 61
How is total network throughput allocated to a Virtual Machine (VM) Instance?
- A. Network bandwidth is variable
- B. When launching a compute instance, customers may select the desired maximum network bandwidth
- C. Each VM is allocated 10 Gbps of network bandwidth regardless of the selected shape
- D. Network bandwidth is proportional to the number of OCPUs in the Instance shape
Answer: D
Explanation:
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!
NEW QUESTION # 62
What two statements regarding the Virtual Cloud Network (VCN) are true?
- A. VCN is a global resource that span across all the Regions
- B. You can only create one VCN per region.
- 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. A single VCN can contain both private and public Subnets.
Answer: D,E
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 # 63
Which component of the Oracle Cloud Infrastructure (OCI) Identity and Access Management (IAM) service can be used for controlling access to resources for authenticated principals?
- A. Policy
- B. Compartment
- C. Network Source
- D. Group
Answer: A
Explanation:
Policies are the component of the OCI IAM service that can be used for controlling access to resources for authenticated principals. A policy is a document that specifies who can access which resources, and how2.
NEW QUESTION # 64
Which gateway can be used to provide internet access to an Oracle Cloud Infrastructure compute instance in a private subnet?
- A. Service Gateway
- B. Dynamic Routing Gateway
- C. Internet Gateway
- D. NAT Gateway
Answer: D
Explanation:
A NAT gateway gives cloud resources without public IP addresses access to the internet without exposing those resources to incoming internet connections.
NEW QUESTION # 65
Which feature does the Oracle Cloud Infrastructure Compute service leverage for ensuring high availability of applications?
- A. Golden Gate
- B. Real Application Clusters (RAC)
- C. Data Guard
- D. Fault Domains
Answer: D
Explanation:
Fault domains are the feature that the Oracle Cloud Infrastructure Compute service leverages for ensuring high availability of applications. A fault domain is a grouping of hardware and infrastructure within an availability domain that is isolated from other fault domains. Fault domains provide protection from unexpected hardware failures or power interruptions within an availability domain.
NEW QUESTION # 66
Which factor does NOT impact the cost of running a virtual machine instance In Oracle Cloud infrastructure.
- A. The region used by the VM instance
- B. The operating system used by the instance
- C. The number of virtual machine running
- D. The size of the VM instance
Answer: C
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 # 67
Which Oracle Cloud Infrastructure service continuously your cloud resources and configuration to detect, assess, and remediate security risks?
- A. Vault
- B. Cloud Guard
- C. Security Advisor
- D. Security Zones
Answer: B
Explanation:
Cloud Guard is the Oracle Cloud Infrastructure service that continuously monitors your cloud resources and configuration to detect, assess, and remediate security risks. Cloud Guard acts as a log and events aggregator from multiple sources, including Audit, OS Management, Networking, and IAM. It applies built-in security rules to identify misconfigurations, anomalous activities, and insecure behaviors. It also provides recommendations and actions to address the issues4.
NEW QUESTION # 68
Who is responsible for upgrading and patching the Oracle Cloud VMware Solution environment after it has been provisioned?
- A. Oracle
- B. VMware and Oracle
- C. VMware
- D. Customer
Answer: A
NEW QUESTION # 69
Which database technology underlines Oracle Cloud Infrastructure Autonomous Database?
- A. Microsoft SQL Server
- B. PostgreSQL
- C. MySQL
- D. Oracle Database
Answer: D
Explanation:
Oracle Cloud Infrastructure Autonomous Database is based on Oracle Database, the world's leading relational database management system. It leverages the features and capabilities of Oracle Database to provide a fully managed, self-driving, self-securing, and self-repairing database service6
NEW QUESTION # 70
Which kind of scaling is supported by virtual machines in Oracle Cloud Infrastructure Compute service?
- A. Only scaling up or down
- B. Only scaling out
- C. Scaling up or down, and scaling in or out
- D. Only scaling in
Answer: C
Explanation:
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 # 71
Which Is NOT a supported target environment for deploying artifacts using the Oracle Cloud Infrastructure (OCI) DevOps service?
- A. Oracle Cloud VMware Solution
- B. OCI Compute Instances
- C. Oracle Container Engine for Kubemetes (OKE) Cluster
- D. OCI Functions
Answer: B
NEW QUESTION # 72
Which statement is NOT true about compartments in Oracle Cloud infrastructure?
- A. Compartments can be nested to create a hierarchy.
- B. Compartments are global resource.
- C. Components provide a way to store and manage encryption keys and secrets.
- D. Identity and Access Management (IAM) policies can be written to grant access to resources in specific compartments.
Answer: C
Explanation:
Compartments do not provide a way to store and manage encryption keys and secrets in Oracle Cloud Infrastructure. Compartments are logical containers that help users organize and isolate their cloud resources. Compartments can be nested to create a hierarchy that reflects the structure of an organization or project. To store and manage encryption keys and secrets, users can use the Oracle Cloud Infrastructure Vault service, which is a fully managed service that provides centralized management of encryption keys, secrets, and certificates.
NEW QUESTION # 73
Which should you use to distribute Incoming traffic between a set of web servers?
- A. Autoscallng
- B. Load Balances
- C. Dynamic Routing Gateway
- D. Internet Gateway
Answer: B
Explanation:
The Oracle Cloud Infrastructure Load Balancing service provides automated traffic distribution from one entry point to multiple servers reachable from your virtual cloud network (VCN). The service offers a load balancer with your choice of a public or private IP address, and provisioned bandwidth.
A load balancer improves resource utilization, facilitates scaling, and helps ensure high availability. You can configure multiple load balancing policies and application-specific health checks to ensure that the load balancer directs traffic only to healthy instances. The load balancer can reduce your maintenance window by draining traffic from an unhealthy application server before you remove it from service for maintenance.
HOW LOAD BALANCING WORKS:
The Load Balancing service enables you to create a public or private load balancer within your VCN. A public load balancer has a public IP address that is accessible from the internet. A private load balancer has an IP address from the hosting subnet, which is visible only within your VCN. You can configure multiple listeners for an IP address to load balance transport Layer 4 and Layer 7 (TCP and HTTP) traffic. Both public and private load balancers can route data traffic to any backend server that is reachable from the VCN.
1) Public Load Balancer
To accept traffic from the internet, you create a public load balancer. The service assigns it a public IP address that serves as the entry point for incoming traffic. You can associate the public IP address with a friendly DNS name through any DNS vendor.
A public load balancer is regional in scope. If your region includes multiple availability domains, a public load balancer requires either a regional subnet (recommended) or two availability domain-specific (AD-specific) subnets, each in a separate availability domain. With a regional subnet, the Load Balancing service creates a primary load balancer and a standby load balancer, each in a different availability domain, to ensure accessibility even during an availability domain outage. If you create a load balancer in two AD-specific subnets, one subnet hosts the primary load balancer and the other hosts a standby load balancer. If the primary load balancer fails, the public IP address switches to the secondary load balancer. The service treats the two load balancers as equivalent and you cannot specify which one is "primary".
Whether you use regional or AD-specific subnets, each load balancer requires one private IP address from its host subnet. The Load Balancing service supplies a floating public IP address to the primary load balancer. The floating public IP address does not come from your backend subnets.
If your region includes only one availability domain, the service requires just one subnet, either regional or AD-specific, to host both the primary and standby load balancers. The primary and standby load balancers each require a private IP address from the host subnet, in addition to the assigned floating public IP address. If there is an availability domain outage, the load balancer has no failover.
2) Private Load Balancer
To isolate your load balancer from the internet and simplify your security posture, you can create a private load balancer. The Load Balancing service assigns it a private IP address that serves as the entry point for incoming traffic.
When you create a private load balancer, the service requires only one subnet to host both the primary and standby load balancers. The load balancer can be regional or AD-specific, depending on the scope of the host subnet. The load balancer is accessible only from within the VCN that contains the host subnet, or as further restricted by your security rules.
The assigned floating private IP address is local to the host subnet. The primary and standby load balancers each require an extra private IP address from the host subnet.
If there is an availability domain outage, a private load balancer created in a regional subnet within a multi-AD region provides failover capability. A private load balancer created in an AD-specific subnet, or in a regional subnet within a single availability domain region, has no failover capability in response to an availability domain outage.
NEW QUESTION # 74
In Oracle Cloud Infrastructure, what can you set up to receive notifications when budget thresholds are reached?
- A. SMS notifications
- B. Email alerts
- C. Pager alerts
- D. Push Notifications
Answer: B
Explanation:
In Oracle Cloud Infrastructure, you can set up email alerts to receive notifications when budget thresholds are reached. Email alerts are sent to users who are subscribed to a budget alert rule, which specifies the percentage or amount of budget consumption that triggers the alert. Email alerts help users monitor and control their cloud spending.
NEW QUESTION # 75
What type of storage is primary used for storing the boot volume of an in the Oracle Cloud Infrastructure Compute service?
- A. File Storage
- B. Block Storage
- C. Architect Storage
- D. Object Storage
Answer: B
Explanation:
Block storage is the primary type of storage used for storing the boot volume of an instance in the Oracle Cloud Infrastructure Compute service. A boot volume is a detachable block storage device that contains the operating system and other software required to boot an instance.
NEW QUESTION # 76
A new customer has logged into Oracle Cloud Infrastructure (OCI) as an administrator for the first time. The admin would like to deploy infrastructure. What is the first step they must take in order to accomplish this task?
- A. Navigate to the desired region and begin creating resources.
- B. Subscribe to the desired region.
- C. Use API endpoints to create resources in the desired region.
- D. File a service request for access to each additional 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
NEW QUESTION # 77
Which TWO are valid targets for setting up Oracle Cloud Infrastructure (OCI) budgets?
(Choose all correct answers)
- A. Budget tag
- B. Tenancy
- C. Identity and Access Management (IAM) group
- D. Compartment
- E. Cost-tracking tag
Answer: D,E
Explanation:
Compartment and Cost-tracking tag are two valid targets for setting up OCI budgets. Budgets are set on cost-tracking tags or compartments (including the root compartment) to track all spending in that cost-tracking tag or for that compartment and its children2. You can create alerts on your budget to receive email notifications based on actual or forecasted spending thresholds2.
NEW QUESTION # 78
Which TWO Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN) firewall features can be used for controlling traffic?
(Choose all correct answers}
- A. Network visualizer
- B. Security Lists
- C. VNIC Metrics
- D. Network Security Groups
- E. VCN Flow Logs
Answer: B,D
Explanation:
Network Security Groups (NSGs) and Security Lists (SLs) are two virtual firewall features that can be used for controlling traffic in an OCI Virtual Cloud Network (VCN). NSGs and SLs allow you to create stateful network filtering rules that allow or deny network traffic based on source and destination IP addresses, ports, and protocols5 NSGs are a subsequent feature designed for application components that have different security postures. NSGs are a set of security rules that you can apply to a set of VNICs in a VCN. NSGs are associated with VNICs, not subnets. You can use NSGs to implement a network security policy at the level of individual VNICs or a group of VNICs. For example, you can use NSGs to control traffic between tiers of an application deployed in a VCN5 SLs are the original virtual firewall feature from the Networking service. SLs are a set of security rules that you apply to a subnet in a VCN. SLs are associated with subnets, not VNICs. You can use SLs to implement a network security policy at the level of the subnet. For example, you can use SLs to control traffic between subnets in a VCN5
NEW QUESTION # 79
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 Regions and Availability Domains
- B. Deploy the application across multiple Availability Domains and Subnets
- C. Deploy the application across multiple Virtual Cloud Networks
- D. Deploy the application across multiple Availability Domains and Fault Domains
Answer: A
Explanation:
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.
NEW QUESTION # 80
You have a mission-critical application which requires to be globally available at all times.
Which deployment strategy should you adopt?
- A. Use multiple Availability Domains In one Region.
- B. Use multiple Fault Domains In each Availability Domain in each Region.
- C. Use multiple Fault Domains in any Availability Domain in multiple Regions.
- D. Use multiple Fault Domains In one Region.
Answer: B
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.
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
NEW QUESTION # 81
Which Oracle Cloud Infrastructure compute shapes does not incur instance billing in a STOPPED state?
- A. HPC
- B. GPU
- C. Dense I/O
- D. Standard
Answer: D
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 # 82
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