2023年最新の実際に出ると確認された 無料Oracle 1z0-1072-22試験問題 [Q40-Q65]

2023年最新の実際に出ると確認された 無料Oracle 1z0-1072-22試験問題

1z0-1072-22リアル試験問題解答は無料

質問 # 40
Your organization has deployed a large, complex application across multiple compute instances in Oracle Cloud Infrastructure (OCI). These compute instances also have block volume storage attached to them. You want tocreate a time consistent backup of these block volume storage.
Which implementation strategy should be used?

• A. Create a manual backup of each volume
• B. Group volumes in a volume group firstand then use available scripts in OCI
• C. Use scripts available in OCI to backup block volume storage
• D. Group volumes in a volume group and create a manual backup of the volume group

正解：D

解説：
Explanation
The Oracle Cloud Infrastructure Block Volume service provides you with the capability to group together multiple volumes ina volume group. A volume group can include both types of volumes, boot volumes, which are the system disks for your Compute instances, and block volumes for your data storage. You can use volume groups to create volume group backups and clones that are point-in-time and crash-consistent.
This simplifies the process to create time-consistent backups of running enterprise applications that span multiple storage volumes across multiple instances. You can then restore an entire group of volumes from a volume group backup.
To create a backup of the volume group
Open the navigation menu. Under Core Infrastructure, go to Block Storage and click Volumes Groups.
In the Volume Groups list, click Create Volume Group Backup in the Actions menu for the volume group you want to create a backup for.

質問 # 41
You have an AI/ML application running on Oracle Cloud Infrastructure. You identified that the application needs GPU and at least 20Gbps Network throughput.
The application is currently using a VM.Standard2.1 compute without any block storage attached to it.
Which two options allow you to get your required performance for your application? (Choose two.)

• A. Terminate the compute instance preserving the boot volume. Create a new computeinstance using the BM.GPU2.2 shape using the boot volume preserved, but no block volume attached.
• B. Terminate the compute instance preserving the boot volume. Create a new compute instance using the VM.GPU3.4 shape using the boot volume preserved and use the NVMe devices to host your application.
• C. Terminate the compute instance preserving the boot volume. Create a new compute instance using the BM.HPC2.36 shape using the boot volume preserved and use the NVMe devices to host your application.
• D. Terminate the compute instance preserving the boot volume. Create a new compute instance using the BM.GPU2.2 shape using the boot volume preserved and attach a new block volume to host your application.
• E. Terminate the compute instance preserving the boot volume. Create a new compute instance using the VM.Standard2.2 shape using the boot volume preserved, but no block volume attached.

正解：C、D

質問 # 42
Which statement is true about cloning a volume?

• A. You need to detach a volume before cloning from it.
• B. A cloned volume is the same as a snapshot that has a dependency on the source volume.
• C. You can create a clone for a volume across regions.
• D. You can change the block volume size when cloning a volume.

正解：D

質問 # 43
You have an Oracle Cloud Infrastructure (OCI) load balancer distributing traffic via an evenly-weighted round robin policy toyour backend web servers. You notice that one of your web servers is receiving more traffic than other web servers.
How can you resolve this imbalance?

• A. Create separate listeners for each backend web server
• B. Disable session persistence on your backend set
• C. Delete and re-create your OCI load balancer
• D. Check security lists and route tables of your virtual cloud network (VCN) and fix any issues associated with the rules

正解：B

解説：
Explanation
Session persistence is a method to direct all requests originating from a single logical client to a single backend web server. Backend servers that use caching to improve performance, or to enable log-in sessions or shopping carts, can benefit from session persistence

質問 # 44
You deployed an Oracle Cloud Infrastructure (OCI) compute instance (VM.Standard2.16) to run a SQL database. After a few weeks, you need to increase disk performance by using NVMe disks but keeping the same number of CPUs. As a first step, you terminate the instance and preserve the boot volume.
What is the next step?

• A. Create a new instance using a VM.DenseIO2.8 shape using the preserved boot volume and move the SQL Database data to NVMe disks
• B. Create a new instance using a VM.DenseIO2.16 shape using the preserved boot volume move the SQL Database data to NVMe disks
• C. Create a new instance using a VM.Standard1.16 shape using the preserved boot volume and move the SQL Database data to NVMe disks
• D. Create a new instance using a VM.DenseIO2.16 shape using the preserved boot volume and move the SQL Database data to block volume

正解：B

解説：
to Increase disk performance by using NVMe disks you can use Dense IO Shape also as the number of CPUs will not change so we should VM.DenseIO2.16

質問 # 45
Which two features are offered natively on Oracle Cloud Infrastructure Database Cloud Service (DBCS)?(Choose two.)

• A. GoldenGate replication between two regions
• B. Data Guard in Maximum Protection mode
• C. backup to Object Storage
• D. Data Guard in Async mode within a region

正解：C、D

解説：
Explanation
Data Guard in Maximum Performance protection mode is supported notsimply Maximum Protection mode, however, you can configure additional protection modes and transport types by logging on to the DB system and accessing Data Guard command-line interface( DGMGRL).

質問 # 46
You have an Oracle Cloud Infrastructure (OCI) load balancer distributing traffic via an evenly-weighted round robin policy to your backend web servers. You notice that one of your web servers is receiving more traffic than other web servers.
How can you resolve this imbalance?

• A. Create separate listeners for each backend web server
• B. Disable session persistence on your backend set
• C. Delete and re-create your OCI load balancer
• D. Check security lists and route tables of your virtual cloud network (VCN) and fix any issues associated with the rules

正解：B

解説：
Session persistence is a method to direct all requests originating from a single logical client to a single backend web server. Backend servers that use caching to improve performance, or to enable log-in sessions or shopping carts, can benefit from session persistence

質問 # 47
Which three methods can you use to manage Oracle Cloud Infrastructure services? (Choose three.)

• A. Oracle Cloud Infrastructure Console
• B. Command-line Interface
• C. Oracle Cloud Infrastructure Desktop Client
• D. REST API
• E. SSH or RDP

正解：A、B、D

解説：
Explanation
https://docs.cloud.oracle.com/iaas/Content/GSG/Concepts/baremetalintro.htm

質問 # 48
Your on-premises hosted application uses Oracle database server. Your database administrator must have access to the database server for managing the application. Your database server is sized for seasonal peak workloads, which results in high licensing costs. You want to move your application to Oracle Cloud Infrastructure (OCI) to take advantage of CPU scaling options.
Which database offering on OCI would you select?

• A. Autonomous Data Warehouse (ADW)
• B. VM DB systems
• C. bare metal DB systems
• D. Autonomous Transactions Processing (ATP)

正解：C

解説：
- In, Oracle Autonomous Database, Customers are not given OS logons or SYSDBA privileges to prevent phishing attacking.
- If a bare metal DB system requires more compute node processing power, you can scale up (increase) the number of enabled CPU cores in the system without impacting the availability of that system.
You cannot change the number of CPU cores for a virtual machine DB system in the same way as metal DB system. Instead, you must change the shape to one with a different number of OCPUs Changing the shape does not impact the amount of storage available to the DB system. However, the new shape can have different memory and network bandwidth characteristics, and you might need to reapply any customizations to these aspects after the change.

質問 # 49
Which two statements about Oracle Cloud Infrastructure File Storage Service are accurate? (Choose two.)

• A. File systems use Oracle-managed keys by default.
• B. Communication with file systems in a mount target is encrypted via HTTPS.
• C. Mount targets use Oracle-managed keys by default.
• D. Customer can encrypt data in their file system using their own Vault encryption key.
• E. Customer can encrypt the communication to a mount target via export options.

正解：C、D

質問 # 50
Which two parameters are required in a back end set's HTTP health check? (Choose two.)

• A. URL path
• B. response body
• C. port
• D. status code
• E. timeout

正解：A、C

解説：
https://docs.cloud.oracle.com/iaas/Content/GSG/Tasks/loadbalancing.htm#Create Enter the Health Check details.
Load Balancing automatically checks the health of the instances for your load balancer. If it detects an unhealthy instance, it stops sending traffic to the instance and reroutes traffic to healthy instances. In this step, you provide the information required to check the health of servers in the backend set and ensure that they can receive data traffic.
Protocol: Select HTTP. Port: Enter 80 URL Path (URI): Enter / The rest of the fields are optional and can be left blank for this tutorial.
Click Create.

質問 # 51
You are responsible for creating and maintaining an enterprise application that consists of multiple storage volumes across multiple compute instances in Oracle Cloud Infrastructure (OCI).
The storage volumes include boot volumes and block volumes for your data storage. You need to create backups of these storage volumes in the most time-efficient manner.
How can you meet this requirement?

• A. Create clones of all boot volumes and block volumes one at a time.
• B. Group together multiple storage volumes in a volume group and create volume groupbackups.
• C. Create on-demand full backups of bootvolumes, and copy data in block volumes to Object Storage using OCI CLI.
• D. Create on-demand full backups of block volumes, and create custom images from the boot volumes.

正解：B

解説：
Reference:https://docs.cloud.oracle.com/en-us/iaas/Content/Block/Concepts/volumegroups.htm

質問 # 52
Which two statements are true about Oracle Cloud Infrastructure IPSec VPN Connect?

• A. OCI IPSec VPN can be configured in trans port mode only
• B. OCI IPSec VPN can be configured in tunnel mode only
• C. OCI IPSec VPN tunnel supports only static routes to route traffic
• D. Each OCI IPSec VPN consists of multiple redundant IPSec tunnels

正解：B、D

解説：
VPN Connect provides a site-to-site IPSec VPN between your on-premises network and your virtual cloud network (VCN). The IPSec protocol suite encrypts IP traffic before the packets are transferred from the source to the destination and decrypts the traffic when it arrives.
On general, IPSec can be configured in the following modes:
Transport mode: IPSec encrypts and authenticates only the actual payload of the packet, and the header information stays intact.
Tunnel mode (supported by Oracle): IPSec encrypts and authenticates the entire packet. After encryption, the packet is then encapsulated to form a new IP packet that has different header information.
Oracle Cloud Infrastructure supports only the tunnel mode for IPSec VPNs.
Each Oracle IPSec VPN consists of multiple redundant IPSec tunnels. For a given tunnel, you can use either Border Gateway Protocol (BGP) dynamic routing or static routing to route that tunnel's traffic. More details about routing follow.
IPSec VPN site-to-site tunnels offer the following advantages:
Public internet lines are used to transmit data, so dedicated, expensive lease lines from one site to another aren't necessary.
The internal IP addresses of the participating networks and nodes are hidden from external users.
The entire communication between the source and destination sites is encrypted, significantly lowering the chances of information theft.

質問 # 53
The Oracle Cloud Infrastructure Block Volume service lets you expand the size of block and boot volumes.
Which three options below can you use to increase the size of your block volumes?

• A. You can only expand block volumes and not boot volumes
• B. Take a backup of your existing volume and restore from the volume backup to a larger volume
• C. Clone an existing volume to a new, larger volume
• D. Expand an existing volume in place with offline resizing
• E. Expand anexisting volume in place with online resizing

正解：B、C、D

解説：
Explanation
The Oracle Cloud Infrastructure Block Volume service lets you expand the size of block volumes and boot volumes. You have three options to increase the size of your volumes:
Expand an existing volume in place with offline resizing. See Resizing a Volume Using the Console for the steps to do this.
Restore from a volume backup to a larger volume.See Restoring a Backup to a New Volume and Restoring a Boot Volume.
Clone an existing volume to a new, larger volume. See Cloning a Volume and Cloning a Boot Volume.

質問 # 54
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. Design your system with redundant compute modes in different Availability Domains to support the failover capability.
• 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. Attach block volumes from different Availability Domains to compute instances in different Availability Domains for high availability.

正解：A、B

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 # 55
You are responsible for creating and maintaining an enterprise application that consists of multiple storage volumes across multiple compute instances in Oracle Cloud Infrastructure (OCI).
The storage volumes include boot volumes and block volumes for your data storage. You need to create backups of these storage volumes in the most time-efficient manner.
How can you meet this requirement?

• A. Group together multiple storage volumes in a volume group and create volume group backups.
• B. Create on-demand full backups of boot volumes, and copy data in block volumes to Object Storage using OCI CLI.
• C. Create clones of all boot volumes and block volumes one at a time.
• D. Create on-demand full backups of block volumes, and create custom images from the boot volumes.

正解：A

質問 # 56
Which two actions will occur when a back-end server that is registered with a backend set is marked to drain connections? (Choose two.)

• A. It keeps the connections to that instance open and attempts to complete any in-flight requests.
• B. It immediately closes all existing connections to that instance.
• C. It forcibly closes all connections to that instance after a timeout period.
• D. It redirects the requests to a user-defined error page.
• E. It disallows new connections to that backend server.

正解：A、E

解説：
Reference:
The Load Balancing service considers a server marked drain available for existing persisted sessions. New requests that are not part of an existing persisted session are not sent to that server.

質問 # 57
What is the maximum number of security lists that can be associated with a subnet?

• A. four
• B. two
• C. five
• D. three

正解：C

解説：
you may optionally specify one or more security lists for the subnet to use (up to five). If you don't specify any, the subnet uses the cloud network's default security list. You can change which security list the subnet uses at any time.
https://docs.cloud.oracle.com/iaas/Content/Network/Tasks/managingVCNs.htm

質問 # 58
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 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.
• C. Configure private peering on your FastConnect link with a static route that points to OCI object storage service.
• D. Configure public 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 # 59
You are designing a high bandwidth, redundant connection between your data center and Oracle Cloud Infrastructure (OCI). While researching for OCI FastConnect locations,you notice that you are co-located with Oracle at one of the Oracle FastConnect locations in the Ashburn region.
What is the recommended design in this scenario?

• A. Setup two IPsec connections between your data center and OCI Ashburn region. Create a OCI load balancer to distribute the traffic across the two connections.
• B. Create a cross-connect group and have at least one cross-connect in that group. Create at least one virtual circuit in the group.
• C. Create a cross-connect group and have two or more cross-connects in that group. Create an IPsec VPN connection on this group.
• D. Create a cross-connect group and have at least two ormore cross-connects in that group. Create at least two or more virtual circuits in the group.

正解：D

解説：
Explanation
You could havemultiple private virtual circuits, for example, to isolate traffic from different parts of your organization (one virtual circuit for 10.0.1.0/24; another for 172.16.0.0/16), or to provide redundancy.

質問 # 60
What is the maximum IP address size range that you can have in a Virtual Cloud Network?

• A. /8
• B. /24
• C. /26
• D. /16

正解：D

解説：
When you create your VCN, you assign a contiguous IPv4 CIDR block of your choice. VCN sizes ranging from /16 (65,533 IP addresses) to /30 (1 IP address) are allowed. Example: 10.0.0.0/16, 192.168.0.0/24.

質問 # 61
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 when needed after the backup.
Which OCI Object Storage tier is suitable for storing the backup to minimize cost?

• A. Infrequent Access tier
• B. Standard tier
• C. Archive tier
• D. Auto-Tiering tier

正解：A

質問 # 62
Which statement is true about interconnecting Virtual CloudNetwork (VCN)?

• A. VCNs must be in the same tenancy to be peered.
• B. Peering VCNs should not have overlapping CIDR blocks.
• C. VCNs support transitive peering.
• D. The only way to interconnect VCNs is through peering.

正解：B

解説：
Reference:https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Tasks/remoteVCNpeering.htm(note)

質問 # 63
You deployed a web server in Oracle Cloud Infrastructure using an ephemeral public IP. After a few changes in your web server configuration, you rebooted the server and a new public IP was associated to your instance.
What should you doto prevent this from happening again?

• A. Create a reservedpublic IP and associate it with the VNIC of your compute instance
• B. Create a reserved public IP and associate it with the security list that your complete instance is using
• C. Create a reserved public IP and associate it with the hosts file of your web server
• D. Create a reserved public IP and associate it with the subnet of your compute instance

正解：A

解説：
Explanation
A public IP address is an IPv4 address that is reachable from the internet. If a resourcein your tenancy needs to be directly reachable from the internet, it must have a public IP address. Depending on the type of resource, there might be other requirements.
There are two types of public IPs:
Ephemeral: Think of it as temporary and existingfor the lifetime of the instance.
Reserved: Think of it as persistent and existing beyond the lifetime of the instance it's assigned to. You can unassign it and then reassign it to another instance whenever you like. Exception: reserved public IPs on public load balancers.
To create a new reservedpublic IP in your pool
Confirm you're viewing the region and compartment where you want to create the reserved public IP.
Open the navigation menu. Under Core Infrastructure, go to Networking and click Public IPs.
Click Create Reserved Public IP.
Enter the following:
Name: An optional friendly name for the reserved public IP. The name doesn't have to be unique, and you can change it later. Avoid entering confidential information.
Compartment: Leave as is.
Tags:Optionally, you can apply tags. If you have permissionsto create a resource, you also have permissions to apply free-form tags to that resource. To apply a defined tag, you must have permissions to use the tag namespace. For more information about tagging, see Resource Tags. If you are not sure if you should apply tags, skip this option (you can apply tags later) or ask your administrator.
Click Create Reserved Public IP.
To assign a reserved public IP to a private IP
Prerequisite: The private IP must not have an ephemeral or reserved public IP already assigned to it. If it does, first delete the ephemeral public IP, or unassign the reserved public IP.
Confirm you're viewing the compartment that contains the instance with the private IP you're interested in.
Open the navigation menu. Under Core Infrastructure, go to Compute and click Instances.
Click the instance to view its details.
Under Resources, click Attached VNICs.
The primary VNIC and any secondary VNICs attached to the instance are displayed.
Click the VNIC you're interested in.
Under Resources, click IP Addresses.
The VNIC's primary private IP and any secondary private IPs are displayed.
For the private IP you're interested in, click the Actions icon (three dots), and then click Edit.
In the Public IP Address section, for Public IP Type, select the radio button for Reserved Public IP.
Enter the following:
Compartment: The compartment that contains the reserved public IP you want to assign.
Reserved Public IP: The reserved public IP you want to assign. You have three choices:
Create a new reserved public IP. You may optionally provide a friendly name for it. The name doesn't have to be unique, and you can change it later. Avoid entering confidential information.
Assign a reserved public IP that is currently unassigned.
Move a reserved publicIP from another private IP.
Click Update.

質問 # 64
You are the Solutions Architect of a large company and are tasked with migrating all your services to Oracle Cloud Infrastructure. As part of this, you first design a Virtual Cloud Network (VCN) with a public subnet and a private subnet. Then in order to provide Internet connectivity to the instances in your private subnet, you create an Oracle Linux instance in your public subnet and configure NAT on it. However, even after adding all related security list rules and routes in the Route Table, your private subnet instances still cannot connect to the Internet.
Which action should you perform to enable Internet connectivity?

• A. There is no way that a private subnet can connect to the Internet.
• B. Restart the NAT instance.
• C. Create a Dynamic Routing Gateway (DRG) and route your private IP traffic to the DRG.
• D. Disable "Source and Destination Check" on the VNIC of your Linux instance.

正解：D

解説：
Explanation
https://docs.cloud.oracle.com/iaas/Content/Network/Tasks/managingVNICs.htm#Source/D By default, every VNIC performs the source/destination check on its network traffic. The VNIC looks at the source and destination listed in the header of each network packet. If the VNIC is not the source or destination, then the packet is dropped.
If the VNIC needs to forward traffic (for example, if it needs to perform Network Address Translation (NAT)), you must disable the source/destination check on the VNIC. For instructions, see To update an existing VNIC.
For information about the general scenario, see Using a Private IP as a Route Target.

質問 # 65
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