Oracle 1z0-1072-22テストエンジン練習テスト問題、試験問題集
100%無料1z0-1072-22日常練習試験には256問があります
質問 # 99
Which statement is true about the Oracle Cloud Infrastructure File Storage Service Mount Target?
- A. Mount target lives in a single subnet of your choice, but is not highly available
- B. Mount target has a public IP address and DNS name
- C. Each mount target requires six internal IP addresses in the subnet to function
- D. You can access multiple file systems through a single mount target
正解：D
解説：
A mount target is an NFS endpoint that lives in a VCN subnet of your choice and provides network access for file systems. The mount target provides the IP address or DNS name that is used together with a unique export path to mount the file system. A single mount target can export many file systems. Typically, you create your first mount target and export when you create your first file system. The mount target maintains an export set which contains all of the exports for its associated file systems.
Limitations and Considerations
Each availability domain is limited to two mount targets by default. However, you can export up to 100 file systems through each mount target.
See Service Limits for a list of applicable limits and instructions for requesting a limit increase.
Each mount target requires three internal IP addresses in the subnet to function. Two of the IP addresses are used during mount target creation. The third IP address must remain available for the mount target to use for high availability failover.
The File Storage service doesn't "reserve" the third IP address required for high availability failover. Use care when designing your subnets and file systems to ensure that sufficient IP addresses remain available for your mount targets.
質問 # 100
Which three must be configured for a load balancer to accept incoming traffic? (Choose two.)
- A. a back-end server
- B. a listener
- C. a certificate
- D. a back end set
- E. a security list that is open on a listener port
正解：A、B、D
解説：
Explanation
https://docs.cloud.oracle.com/iaas/Content/Balance/Tasks/managingloadbalancer.htm?tocpath=Services%7CLoa The essential components for load balancing include:* A load balancer with pre-provisioned bandwidth.* Abackend set with a health check policy. See Managing Backend Sets.* Backend servers for your backend set.
See Managing Backend Servers.* One or more listeners . See Managing Load Balancer Listeners.* Load balancer subnet security rules to allow the intended traffic. To learn more about these rules, see Security Rules.* Optionally, you can associate your listeners with SSL server certificate bundles to manage how your system handles SSL traffic. See Managing SSL Certificates.
質問 # 101
Which statement is true regarding Autonomous Transaction Processing (ATP)?
- A. A maximum of 8 cores can be enabled for an ATP database
- B. A maximum of 2 TB of storage can be enabled for an ATP database
- C. A database name cannot be used concurrently for both an Autonomous Data Warehouse (ADW) and an ATP database
- D. After terminating a database, the database name is available for immediate reuse
正解：C
解説：
The database name must be unique among all Autonomous Data Warehouses and Autonomous Databases in your tenancy in the same region.
Terminating an Autonomous Transaction Processing database permanently deletes the instance and removes all automatic backups. You cannot recover a terminated database.
the maximum number of CPUs and maximum storage capacity that can be provisioned in Oracle Autonomous Database In the current release up to 128 CPUs and 128TB can be provisioned from the cloud console. Customers requiring more resources need to call their Oracle account team
質問 # 102
You are implementing Oracle Cloud Infrastructure (OCI) FastConnect to access OCI public access points (e.g. - object storage). You want other Internet traffic from your on-premises environment to use your existing connection with your ISP.
What is the correct way to establish OCI FastConnect to access these OCI public endpoints?
- A. Configure public peering on your FastConnect link. Redistribute BGP routes learned into your existing routing table and advertise a specific route for your network infrastructure to OCI.
- B. Configure public peering on your FastConnect link with a static route that points to OCI object storage service.
- C. Configure private peering on your FastConnect link. Redistribute BGP routes learned into your existing routing table and advertise a default from your network infrastructure to OCI.
- D. Configure private peering on your FastConnect link with a static route that points to OCI object storage service.
正解：A
解説：
https://www.oracle.com/a/ocom/docs/connectivity-fast-connect-200.pdf
質問 # 103
What does Terraform use to create, manage, and manipulate infrastructure resources?
- A. resources
- B. provider
- C. instances
- D. provisioner
正解：B
解説：
The Oracle Cloud Infrastructure provider is used to interact with the many resources supported by the Oracle Cloud Infrastructure. The provider needs to be configured with credentials for the Oracle Cloud Infrastructure account.
質問 # 104
You are an administrator with an application running on OCI. The company has a fleet of OCI compute virtual instances behind an OCI Load Balancer. The OCI Load Balancer Backend Sethealth check API is providing a
'Critical' level warning. You have confirmed that your application is running healthy on the backend servers.
What is the possible reason for this 'Critical' warning?
- A. The Backend Server VCN's Security List does not include the IP range for the source of the healthcheck requests.
- B. The Backend Server VCN's Route Table does not include the route for OCI LB.
- C. OCI Load Balancer Listener is not configured correctly.
- D. A user does not have correct IAM credentials on theBackend Servers.
正解：A
解説：
Explanation
References:
"In this case, your security rules might not include the IP range for the source of the health check requests.
You can find the health check source IP on the Details page for each backend server. You can also use theAPI to find the IP in the sourceIpAddress field of the HealthCheckResult object."
https://docs.cloud.oracle.com/iaas/Content/Balance/Tasks/editinghealthcheck.htm#health-status
質問 # 105
You are an administrator with an application running in Oracle Cloud Infrastructure (OCI). The company has a fleet of OCI compute virtual instances behind an load balancer. The load balancer backend set health check API is providing a 'Critical' level warning. You haveconfirmed that your application Is running healthy on the backend servers. What Is the possible reason for this 'Critical' warning?
- A. The load balancer listener is not configured correctly.
- B. The security list associated with the subnet In which the backend server is provisioned does not include the IP range for the source of the health check requests.
- C. The route table associated with the subnet in which the backend server is provisioned does not include the route for the OCI load balancer.
- D. A user does not have correct Identity and Access Management (IAM) credentials on the backend servers.
正解：B
質問 # 106
You are deploying a highly available web application In Oracle Cloud Infrastructure and have decided to use a public load balancer. The back-end web servers will be distributed across all three availability domains (ADs).
How many subnets should you create to deliver a secure, highly available application?
- A. three subnets in total; one regional public subnet to host your back-end web servers and two AD specific private subnets to host your private load load balancer.
- B. two subnets in total; one regional private subnet to host your back-end web servers and one regional public subnet to host your public load load balancer.
- C. one subnet in total; one regional private subnet to host your back-end web servers and your public load balancer.
- D. two subnets in total; one regional public subnet to host your back-end web servers and one regional private subnet to host your public load load balancer.
正解：B
解説：
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.
You cannot specify a private subnet for your public load balancer.
The backend servers (Compute instances) associated with a backend set can exist anywhere, as long as the associated network security groups (NSGs), security lists, and route tables allow the intended traffic flow.
Oracle recommends that you create your load balancer in a regional subnet.
Oracle recommends that you distribute your backend servers across all availability domains within the region.
質問 # 107
You are the Cloud Architect of a company, and are designing a solution on Oracle Cloud Infrastructure where you want to have all your compute instances resistant to hardware failure.
Which two are recommended best practices to achieve the requirement on Oracle Cloud Infrastructure? (Choose two.)
- A. Attach block volumes from different Availability Domains to compute instances in different Availability Domains for high availability.
- B. Create a custom image of your system drive each time you change the image.
- C. Create backups of your block volumes that are associated with compute instances in different regions.
- D. Design your system with redundant compute modes in different Availability Domains to support the failover capability.
正解：B、D
解説：
Reference:
System Resilience Oracle Cloud Infrastructure runs on Oracle's high-quality Sun servers. However, any hardware can experience a failure. Follow industry-wide hardware failure best practices to ensure the resilience of your solution. Some best practices include:
Design your system with redundant compute nodes in different availability domains to support fail-over capability. Create a custom image of your system drive each time you change the image. Back up your data drives, or sync to spare drives, regularly. If you experience a hardware failure and have followed these practices, you can terminate the failed instance, launch your custom image to create a new instance, and then apply the backup data.
質問 # 108
Where do you find the tnsnames.ora for your Autonomous Data Warehouse (ADW) database?
- A. The ADW database will place the tnsnames.ora file in an object storage bucket
- B. The tnsnames.ora file is included in credentials.zip file that you download from service console of ADW
- C. You can download tnsnames.ora from Oracle Cloud Infrastructure web console under ADW details page
- D. You are automatically prompted to download the tnsnames.ora file upon creation of the ADW database
正解：B
解説：
https://docs.oracle.com/en/cloud/paas/autonomous-data-warehouse-cloud/user/connect-intorduction.html#GUID-CD4C10A6-1C1E-4969-8F67-1433B6CE626A To download client credentials from the Autonomous Transaction Processing Service Console:
- From the Service Console click the Administration link.
- Click Download Client Credentials (Wallet).
- On the Download Client Credentials (Wallet) page, enter a wallet password in the Password field and confirm the password in the Confirm Password field. The password must be at least 8 characters long and must include at least 1 letter and either 1 numeric character or 1 special character. This password protects the downloaded Client Credentials wallet.
- Click Download to save the client security credentials zip file. By default the filename is: Wallet_databasename.zip. You can save this file as any filename you want. You must protect this file to prevent unauthorized database access.
The zip file includes the following:
tnsnames.ora and sqlnet.ora: Network configuration files storing connect descriptors and SQL*Net client side configuration.
cwallet.sso and ewallet.p12: Auto-open SSO wallet and PKCS12 file. PKCS12 file is protected by the wallet password provided in the UI.
keystore.jks and truststore.jks: Java keystore and truststore files. They are protected by the wallet password provided while downloading the wallet.
ojdbc.properties: Contains the wallet related connection property required for JDBC connection. This should be in the same path as tnsnames.ora.
質問 # 109
Which two statements are true about Oracle Cloud Infrastructure (OCI) DB Systems Data Guard service?
- A. Data guard configuration on the OCI is limited to a virtual machine only
- B. Data guard implementation for Bare Metal shapes requires two DB Systems, one containing the primary database and one containing the standby database.
- C. Data guard implementation requires two DB Systems, one running the primary database on a virtual machine and the standby database running on bare metal.
- D. Both DB systems must use the same VCN, and port 1521 must be open
正解：B、D
解説：
Explanation
An Oracle Data Guard implementation requires two DB systems, one containing the primary database and one containing the standby database. When you enable Oracle Data Guard for a virtual machine DB system database, a new DB system with the standby database is created and associated with the primary database. For a bare metal DB system, the DB system with the database that you want to use asthe standby must already exist before you enable Oracle Data Guard.
Requirement details are as follows:
- Both DB systems must be in the same compartment.
- The DB systems must be the same shape type (for example, if the shape of the primary database isa virtual machine, then the shape of the standby database can be any other virtual machine shape).
- If your primary and standby databases are in different regions, then you must peer the virtual cloud networks (VCNs) for each database.
- Configure thesecurity list ingress and egress rules for the subnets of both DB systems in the Oracle Data Guard association to enable TCP traffic to move between the applicable ports. Ensure that the rules you create are stateful (the default).
質問 # 110
Which resource is required when connecting to your on-premise network from your Virtual Cloud Network (VCN) via IPSec VPN or FastConnect?
- A. Internet Gateway (IGW)
- B. NAT
- C. local peering gateway
- D. Dynamic Routing Gateway (DRG)
正解：D
解説：
Explanation
References:https://cloud.oracle.com/networking/vcn/faq
質問 # 111
You have been asked to create anIdentity and Access Management (IAM) user that will authenticate to Oracle Cloud Infrastructure (OCI) API endpoints. This user must not be given credentials that would allow them to log into the OCI console.
Which two authentication options can you use? (Choose two.)
- A. Auth token
- B. API signing key
- C. SSH key pair
- D. PEM Certificate file
- E. SSL certificate
正解：A、B
解説：
Reference:https://docs.cloud.oracle.com/en-us/iaas/Content/Identity/Tasks/managingcredentials.htm
質問 # 112
What show created before provisioning an Oracle Cloud Infrastructure (OCI) DB System?
- A. Compute Instance
- B. Compartment
- C. Bucket in Object Storage
- D. Virtual Cloud Network
正解：D
質問 # 113
You have launched a compute instance running Oracle database in a private subnet in the Oracle Cloud Infrastructure US East region. You have also created a Service Gateway to back up the data files to OCI Object Storage in the same region. You have modified the security list associated with the private subnet to allow traffic to the Service Gateway, but your instance still cannot access OCI Object Storage. How can you resolve this issue?
- A. Add a stateful rule that enables egress HTTPS (TCP port 443) traffic to OCI Object Storage in the security list associated with the private subnet
- B. Add a rule in the Route Table associated with the private subnet with Target type as "Service Gateway" and destination service as all IAD services in the Oracle Service Network.'
- C. Add a stateful rule that enables ingress HTTPS (TOP port 443) traffic to 001 Object Storage in the security list associated with the private subnet
- D. Use the default Security List, which has ports open for OCI Object Storage
正解：B
解説：
A service gateway lets your virtual cloud network (VCN) privately access specific Oracle services without exposing the data to the public internet. No internet gateway or NAT is required to reach those specific services. The resources in the VCN can be in a private subnet and use only private IP addresses. The traffic from the VCN to the Oracle service travels over the Oracle network fabric and never traverses the internet.
The service gateway is regional and enables access only to supported Oracle services in the same region as the VCN.
For traffic to be routed from a subnet in your VCN to a service gateway, you must add a rule accordingly to the subnet's route table. The rule must use the service gateway as the target. For the destination, you must use the service CIDR label that is enabled for the service gateway. This means that you don't have to know the specific public CIDRs, which could change over time.
質問 # 114
You have deployed a compute instance (VM.Standard2.24) to run an Oracle database. With this set up, you run into some performance issues and want to leverage an OCI Dense IO shape (VM.DenseIO2.24), with which you get 25.6 TB local NVMe SSD. You do not want to lose the configuration changes you made to the instance. Which of the following TWO steps ARE NOT required to make this transition?
- A. Terminate the VM.Standard2.24 instance and preserve the boot volume
- B. Terminate the VM.Standard2.24 instance and do not preserve the boot volume
- C. Create a new instance using the VM.Dense102.24 shape using the preserved boot volume and move the Oracle Database data to NVMe disks
- D. Create a new instance using a VM.DenseIO2.24 shape using the preserved boot volume and move the Oracle Database data to block volumes
正解：B、D
解説：
Explanation
You can permanently terminate (delete) instances that you no longerneed. Any attached VNICs and volumes are automatically detached when the instance terminates. Eventually, the instance's public and private IP addresses are released and become available for other instances. By default, the instance's boot volume is deleted when you terminate the instance, however you can preserve the boot volume associated with the instance, so that you can attach it to a different instance as a data volume, or use it to launch a new instance.
Dense I/O Shapes Designed for largedatabases, big data workloads, and applications that require high-performance local storage. DenseIO shapes include locally-attached NVMe-based SSDs.
so once you create the VM.DenseIO you need to moce the Database to locally-attached NVMe-based SSDs
質問 # 115
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