あなたを合格させる1z0-1072-23試験問題集で使おう（更新された57問があります)
1z0-1072-23試験問題集でOracle練習テスト問題
Oracle 1z0-1072-23 認定試験の出題範囲：
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質問 # 32
Which is NOT a valid action within the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. Restoring from a volume backup to a larger volume.
- B. Expanding an existing volume in place with offline resizing.
- C. Attaching a block volume to an instance in a different availability domain.
- D. Cloning an existing volume to a new, larger volume.
正解：C
解説：
Attaching a block volume to an instance in a different availability domain is not a valid action within the OCI Block Volume service. A block volume can only be attached to an instance in the same availability domain. The other options are valid actions that can be performed with the Block Volume service. Reference: [Block Volume Actions]
質問 # 33
What should be created before provisioning an Oracle Cloud Infrastructure (OCI) DB System?
- A. Virtual Cloud Network
- B. Bucket in Object Storage
- C. Compute Instance
- D. Compartment
正解：A
解説：
Explanation
The explanation is that a Virtual Cloud Network (VCN) is a software-defined network that you set up in OCI to connect your cloud resources, such as compute instances and databases. A VCN provides you with complete control over your network environment, including selecting your own IP address range, creating subnets, route tables, gateways, security lists, etc. You need to create a VCN before provisioning an OCI DB System, as you need to specify which subnet in your VCN you want to launch your DB System in.
質問 # 34
You are backing up your on-premises data to the Oracle Cloud Infrastructure (OCI) Object Storage Service.
Your requirements are:
1. Backups need to be retained for at least full 31 days.
2. Data should be accessible immediately if and when needed after the backup.
Which OCI Object Storage tier is suitable for storing the backup to minimize cost?
- A. Standard tier
- B. Archive tier
- C. Auto-Tiering tier
- D. Infrequent Access tier
正解：D
解説：
Explanation
The explanation is that the Infrequent Access tier is suitable for storing data that is accessed less frequently but requires immediate access when needed. The Infrequent Access tier has lower storage costs than the Standard tier, but higher retrieval costs. The Infrequent Access tier also has a minimum storage duration of 30 days, which means that you will be charged for at least 30 days of storage even if you delete or move the data before that period.
質問 # 35
As a network architect you have been tasked with creating a fully redundant connection from your on-premisesdata center to your Virtual Cloud Network (VCN) in the us-ashburn-1 region.Which TWO options will accomplish this requirement?
- A. Configure two FastConnect virtual circuits to the us-ashburn-1 region and terminate them in diverse hardware on-premises.
- B. Configure a Site-to-Site VPN from a single on-premises CPE.
- C. Configure one FastConnect virtual circuit to the us-ashburn-1 region and a Site-to-Site VPN to the usashburn-1 region.
- D. Configure one FastConnect virtual circuit to the us-ashburn-1 region andthe second FastConnect virtual circuit to the us-phoenix-1 region.
正解：A、C
解説：
Explanation
Configure two FastConnect virtual circuits to the us-ashburn-1 region and terminate them in diverse hardware on-premises. Configure one FastConnect virtual circuit to the us-ashburn-1 region and a Site-to-Site VPN to the us-ashburn-1 region. The explanation is that FastConnect is a service that provides a private and dedicated connection between your on-premises network and your VCN in OCI. FastConnect offers higher bandwidth, lower latency, and more consistent network performance than public internet connections. To create a fully redundant connection from your on-premises data center to your VCN in the us-ashburn-1 region, you can either configure two FastConnect virtual circuits to the same region and terminate them in diversehardware on-premises, or configure one FastConnect virtual circuit to the region and a Site-to-Site VPN to the same region as a backup option.
質問 # 36
When creating an Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN) with the VCN wizard, which THREE gateways are created automatically?
- A. Service Gateway
- B. Bastion Host
- C. Storage Gateway
- D. Internet Gateway
- E. Dynamic Routing Gateway
- F. NAT Gateway
- G. Local Peering Gateway
正解：A、D、F
解説：
Internet Gateway, NAT Gateway, and Service Gateway are three gateways that are created automatically when creating a VCN with the VCN wizard. An Internet Gateway allows public traffic between the VCN and the internet. A NAT Gateway allows private traffic from the VCN to access the internet without exposing the VCN resources to incoming internet connections. A Service Gateway allows private traffic from the VCN to access OCI services such as Object Storage, Email Delivery, and Notifications. The other options are not created automatically by the VCN wizard, but can be added manually later if needed. Reference: [VCN Wizard], [Gateways]
質問 # 37
When defining a query for metric data in Monitoring, which field provides the time window for aggregating metric data points plotted on the metric chart?
- A. Interval
- B. Namespace
- C. Statistic
- D. Dimension
正解：A
解説：
Interval is the field that provides the time window for aggregating metric data points plotted on the metric chart. Interval is a parameter that specifies how often metric data points are collected and aggregated by the Monitoring service. For example, an interval of 5 minutes means that metric data points are aggregated every 5 minutes and displayed on the chart. The other options are not fields that provide the time window for aggregating metric data points, but rather other parameters that define the metric query. Reference: [Interval]
質問 # 38
You plan to launch a VM instance with the VM.Standard2.24 shape and Oracle Linux 8 platform image. You want to protect your VM instance from low-level threats, such as rootkits and bootkits that can infect the firmware and operating system and are difficult to detect.
What should you do?
- A. Create a burstable instance.
- B. Use in-transit encryption.
- C. Use Vulnerability Scanning Service.
- D. Create a shielded instance.
正解：D
解説：
The explanation is that shielded instances are VM instances that have additional security features to protect them from low-level threats, such as rootkits and bootkits that can infect the firmware and operating system and are difficult to detect. Shielded instances use verified boot, which ensures that only trusted software components are executed during the boot process. Shielded instances also use virtual trusted platform module (vTPM), which provides a secure storage for encryption keys and certificates. Shielded instances are available for Oracle Linux 8 platform images with VM.Standard2.* shapes.
質問 # 39
Which is NOT a valid action within the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. Restoring from a volume backup to a larger volume.
- B. Expanding an existing volume in place with offline resizing.
- C. Attaching a block volume to an instance in a different availability domain.
- D. Cloning an existing volume to a new, larger volume.
正解：C
解説：
Explanation
Attaching a block volume to an instance in a different availability domain is not a valid action within the OCI Block Volume service. A block volume can only be attached to an instance in the same availability domain.
The other options are valid actions that can be performed with the Block Volume service. References: [Block Volume Actions]
質問 # 40
What should be created before provisioning an Oracle Cloud Infrastructure (OCI) DB System?
- A. Virtual Cloud Network
- B. Bucket in Object Storage
- C. Compute Instance
- D. Compartment
正解：A
解説：
The explanation is that a Virtual Cloud Network (VCN) is a software-defined network that you set up in OCI to connect your cloud resources, such as compute instances and databases. A VCN provides you with complete control over your network environment, including selecting your own IP address range, creating subnets, route tables, gateways, security lists, etc. You need to create a VCN before provisioning an OCI DB System, as you need to specify which subnet in your VCN you want to launch your DB System in.
質問 # 41
You have objects stored in an OCI Object Storage bucket that you want to share with a partner company. You decide to use pre-authenticated requests to grant access to the objects. Which statement is true about preauthenticated requests?
- A. You cannot edit a pre-authenticated request.
- B. Pre-authenticated requests can be used to delete buckets or objects.
- C. Deleting a pre-authenticated request does not revoke user access to the associated bucket or object.
- D. You need to provide your OCI credentials to the partner company.
正解：A
解説：
You cannot edit a pre-authenticated request is a true statement about pre-authenticated requests. Pre-authenticated requests are URLs that allow users to access objects or buckets in OCI Object Storage without requiring additional authentication or authorization. Pre-authenticated requests can be created with an expiration date and time, and can be used for read or write operations. However, once created, pre-authenticated requests cannot be edited, but can only be deleted or extended. The other statements are false about pre-authenticated requests. Reference: [Pre-Authenticated Requests]
質問 # 42
Which statement is true about File System Replication in Oracle Cloud Infrastructure (OCI)?
- A. You can replicate the data in one file system to another file system only in the same region.
- B. Only a file system that has been exported can be used as a target file system.
- C. You can replicate the data in one file system to another file system in the same region or a different region.
- D. You cannot specify a replication interval when you create the replication resource.
正解：C
解説：
Explanation
You can replicate the data in one file system to another file system in the same region or a different region is a true statement about File System Replication in OCI. File System Replication is a feature that allows users to create a copy of a file system in another file system, either within the same region or across regions. This can be useful for disaster recovery, data migration, or data distribution purposes. The other statements are false about File System Replication in OCI. References: [File System Replication]
質問 # 43
You have a high-demand web application running on Oracle Cloud Infrastructure (OCI). Your tenancy administrator has set up a schedule-based autoscaling policy on instance pool withan initial size of 5 instancesfor the application.
Policy 1:
Target pool size:10 instances
Execution time:8:30 a.m. on every Monday through Friday, in every month, in every year Cron expression:0 30 8 ? * MON-FRI * Which statement accurately explains the goal of this policy?
- A. Goal: A recurring weekly schedule. On all days of the week at 8.30 a.m., scale out the pool to 10 instancesfrom the initial size of 5
- B. Goal: A recurring daily schedule. On weekday mornings at 8.30 a.m., scale out to 10 instances.
- C. Goal: A recurring monthly schedule. On all days of the month, set the initial pool size to 5 instances. At
8.30 a.m., on every day of the month, scale out to 10 instances. - D. Goal: A one-time schedule with only one scaling out event. At 8:30 a.m., on December 31, 2021, scale theinstance pool to 10 instances from 5.
正解：B
解説：
Explanation
The explanation is that a schedule-based autoscaling policy allows you to adjust the size of your instance pool based on a cron expression that specifies the date and time of the scaling action. The cron expression consists of six fields: seconds, minutes, hours, day of month, month, and day of week. In this case, the cron expression is 0 30 8 ? * MON-FRI *, which means that the scaling action will occur at 8:30 a.m. on every Monday through Friday, regardless of the day of month or month. Therefore, the goal of this policy is to scale out the instance pool to 10 instances on weekday mornings at 8:30 a.m.
質問 # 44
You created a virtual cloud network (VCN) with three private subnets. Two of the subnets contain application servers and the third subnet contains a DB System. The application requires a shared file system, therefore you have provisioned one using the file storage service (FSS).
You have also created the corresponding mount target in one of the application subnets. The VCN security lists are properly configured so that the application servers can access FSS. The security team changed the settings for the DB System to have read-only access to the file system. However when they test it, they are unable to access FSS.
How would you allow access to FSS?
- A. Modify the security list associated with the subnet where the mount target resides.
- B. Create an NFS export option that allows READ_ONLY access where the source is the CIDR range of the DB System subnet.
- C. Change the ingress rules corresponding to the DB System subnet to be stateful.
- D. Create an instance principal for the DB System. Write an Identity and Access Management (IAM) policy that allows the instance principal read-only access to the file storage service.
- E. Modify the security list associated with the subnet where the mount target resides. Change the ingress rules corresponding to the DB System subnet to be stateless.
正解：B
解説：
Creating an NFS export option that allows READ_ONLY access where the source is the CIDR range of the DB System subnet is the correct answer. This is because NFS export options are used to control the level of access that clients have to file systems. By creating an NFS export option with READ_ONLY access for the DB System subnet, you can allow the DB System to read data from the file system, but not write or modify it. The other options are not correct, as they do not address the requirement of read-only access for the DB System. Reference: [NFS Export Options]
質問 # 45
Which of the following statements is true about cloning a volume in the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. You can change the block volume size when cloning a volume.
- B. You can clone a volume to another region.
- C. You need to detach a volume before cloning it.
- D. Creating a clone takes longer than creating a backup of a volume.
正解：A
解説：
You can change the block volume size when cloning a volume. The explanation is that cloning a volume is a way of creating an exact copy of an existing volume without creating a backup first. Cloning a volume is faster and cheaper than creating a backup and restoring it to a new volume. When you clone a volume, you can change the block volume size, performance, encryption settings, and tags of the new volume. You do not need to detach a volume before cloning it, as cloning does not affect the source volume or its attachments. You cannot clone a volume to another region, as cloning only works within the same region and availability domain. Creating a clone usually takes less time than creating a backup of a volume, as cloning does not involve transferring data to Object Storage.
質問 # 46
You just got a last minute request to create a set of instances in Oracle Cloud Infrastructure (OCI). The configuration and installed software are identical for every instance, and you already have a running instance inyour OCI tenancy. Which image option allows you to achieve this task with the least amount of effort?
- A. Select an image from the OCI Marketplace.
- B. Use Oracle-provided images and customize the installation using a third-party tool.
- C. Bring your own image and use it as a template for the new instances.
- D. Create a custom image and use it as a template for the new instances.
正解：D
解説：
Explanation
Creating a custom image and using it as a template for the new instances is the option that allows you to achieve this task with the least amount of effort. A custom image is a copy of an existing instance that you can use to launch other instances with the same configuration and installed software. The other options are not suitable for this scenario, as they would require more time and effort to create and customize the instances.
References: [Custom Images]
質問 # 47
As your company's cloud architect, you have been invited by the CEO to join hisstaff meeting. They want yourinput on interconnecting Oracle Cloud Infrastructure (OCI) to another cloudprovider in London, with some specific requirements:
* They want resources in the other cloud provider to leverage OCI Autonomous Data Warehouse ML capabilities.
* The connection between OCI and the other cloud provider should be provisioned as quickly as possible.
* The connection should offer high bandwidth and predictable performance.
Which other cloud provider should you recommend to interconnect with OCI and meet the above requirements?
- A. Amazon Web Services
- B. IBM Cloud
- C. Alibaba Cloud
- D. Microsoft Azure
- E. Digital Ocean
- F. Google Cloud
- G. OCI
正解：D
解説：
Explanation
The explanation is that Microsoft Azure is one of the cloud providers that has an interconnect location with OCI in London. This means that you can use OCI FastConnect to establish a private and dedicated connection between OCI and Azure in London, with high bandwidth and predictable performance. This connection can also enable you to leverage OCI Autonomous Data Warehouse ML capabilities from Azure resources, as you can access OCI services across regions using private IP addresses. The interconnect location can be provisioned quickly using the OCI and Azure consoles or APIs.
質問 # 48
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