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試験問題集リアルOracle Cloud Solutions Infrastructure問題集256解答を試そう！
質問 # 35
Which two statements are true about Oracle Cloud Infrastructure (OCI) DB Systems Data Guard service?
- A. Both DB systems must use the same VCN, and port 1521 must be open
- B. Data guard configuration on the OCI is limited to a virtual machine only
- C. Data guard implementation for Bare Metal shapes requires two DB Systems, one containing the primary database and one containing the standby database.
- D. Data guard implementation requires two DB Systems, one running the primary database on a virtual machine and the standby database running on bare metal.
正解：A、C
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 # 36
Which three must be configured for a load balancer to accept incoming traffic? (Choose two.)
- A. a listener
- B. a certificate
- C. a back-end server
- D. a back end set
- E. a security list that is open on a listener port
正解：A、C、D
解説：
https://docs.cloud.oracle.com/iaas/Content/Balance/Tasks/managingloadbalancer.htm?tocpath=Services%7CLoad%20Balancing%7C_____5 The essential components for load balancing include: * A load balancer with pre-provisioned bandwidth. * A backend 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 # 37
Your company has decided to move a few applications to Oracle Cloud and you have been asked to design it for both High Availability (HA) and Disaster Recovery (DR).
Which two should youconsider while designing your Oracle Cloud Infrastructure architecture? (Choose two.)
- A. Compartments
- B. Region
- C. Instance Shape
- D. Availability Domain
正解：B、D
解説：
Explanation
References:https://blogs.oracle.com/cloud-infrastructure/migration-and-disaster-recovery-in-the-oracle-cloud-wi
質問 # 38
Which two features are offered natively on Oracle Cloud Infrastructure Database Cloud Service (DBCS)?(Choose two.)
- A. backup to Object Storage
- B. GoldenGate replication between two regions
- C. Data Guard in Async mode within a region
- D. Data Guard in Maximum Protection mode
正解：A、C
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 # 39
A company currently uses Microsoft Active Directory as its identity provider. The company recently purchased Oracle Cloud Infrastructure (OCI) to leverage the cloud platform for its test and development operations. As the administrator, you are now tasked with giving access only to developers so that they can start creating resources in their OCI accounts.
Which step will you perform to achieve this requirement?
- A. Create a group for developers on OCI and map the group to a similar group in Microsoft Active Directory during the federation process.
- B. Create a group for developers on OCI, export all the developers from Microsoft Active Directory, and then import them into the Identity and Access Management (IAM) group.
- C. Create a new user account for each user, and then create policies to provide access to developers.
- D. Federate all Microsoft Active Directory groups with OCI to allow users to use their existing credentials.
正解：A
質問 # 40
Which two statements are true about the Oracle Cloud Infrastructure Object Storage Service? (Choose two.)
- A. It provides higher IOPS than Block Storage.
- B. Data is stored redundantly across multiple availability domains (ADs) in a multi-AD region.
- C. It can be directly attached or detached from a compute instance.
- D. It provides strong consistency.
- E. Data is stored redundantly only in a single AD.
正解：B、D
解説：
STRONG CONSISTENCY When a read request is made, Object Storage always serves the most recent copy of the data that was written to the system. DURABILITY Object Storage is a regional service. Data is stored redundantly across multiple storage servers. Object Storage actively monitors data integrity using checksums and automatically detects and repairs corrupt data. Object Storage actively monitors and ensures data redundancy. If a redundancy loss is detected, Object Storage automatically creates more data copies. For more details about Object Storage durability, see the Oracle Cloud Infrastructure Object Storage FAQ. CUSTOM METADATA You can define your own extensive metadata as key-value pairs for any purpose. For example, you can create descriptive tags for objects, retrieve those tags, and sort through the data. You can assign custom metadata to objects and buckets using the Oracle Cloud Infrastructure CLI or SDK. See Software Development Kits and Command Line Interface for details. ENCRYPTION Object Storage employs 256-bit Advanced Encryption Standard (AES-256) to encrypt object data on the server. Each object is encrypted with its own key. Data encryption keys are encrypted with a master encryption key that is frequently rotated. Encryption is enabled by default and cannot be turned off.
質問 # 41
You have five different company locations spread across the US. For a proof-of-concept (POC) you need to setup secure and encrypted connectivity to your workloads running in a single virtual cloud network (VCN) in the Oracle Cloud Infrastructure Ashburn region from all company locations.
What would meet this requirement?
- A. Create five virtual circuits using FastConnect for each company location and terminate those connections on a single dynamic routing gateway (DRG). Attach that DRG to your VCN.
- B. Create five IPsec connections with each company location and terminate those connections on a singleDRG. Attach that DRG to your VCN.
- C. Create five IPsec VPN connections with each company location and terminate those connections on five separate DRGs. Attach those DRGs to your VCN.
- D. Create five internet gateways in your VCN and have separate route table for each internet gateway.
正解：B
解説：
Explanation
Access to Your On-Premises Network
There are two ways toconnect your on-premises network to Oracle Cloud Infrastructure:
VPN Connect: Offers multiple IPSec tunnels between your existing network's edge and your VCN,by way of a DRG that you create and attach to your VCN.
Oracle Cloud Infrastructure FastConnect: Offers a private connection between your existing network's edge and Oracle Cloud Infrastructure. Traffic does not traverse the internet. Both private peering and public peering are supported. That means your on-premises hosts can access private IPv4 addresses in your VCN as well as regional public IPv4 addresses in Oracle Cloud Infrastructure (for example, Object Storage or public load balancers in your VCN).
You can use one or both types of the preceding connections. If you use both, you can use them simultaneously, or in a redundant configuration. These connections come to your VCN by way of a single DRG that you create and attach to your VCN. Without that DRG attachment and a route rule for the DRG, traffic does not flow between your VCN and on-premises network. At any time, you can detach the DRG from your VCN but maintain all the remaining components that form the rest of the connection. You could then reattach the DRG again, or attach it to another VCN.
質問 # 42
Your company uses the Oracle Cloud Infrastructure (OCI) Object Storage service to share large data sets with its data science team. The data science team consists of 20 peoplewho work from offices in Washington, D.C., and Tokyo. While working in these offices, employees are assigned an IP address from the public IP range
129.146.31.0/27
Which two steps should you take to ensure that the Object Storage bucket used in this scenario was only accessible from these office locations? (Choose two.)
- A. Write an IAM policy that includes the conditional statementwhere request.networkSource.name
=CorpNet - B. Set the bucket visibility to public and only share the URL with the data scienceteam via email
- C. Write an IAM policy that includes the conditional statementwhere request.region =
129.146.31.0/27 - D. Create a Network Source named CorpNetwork witha CIDR block of129.146.0.0/16
- E. Create a pre-authenticated request for each data set and only share with the data science team via email
- F. Create a Network Source named CorpNetwork with a CIDR block of129.146.31.0/27
正解：D、E
質問 # 43
Which two options are available when configuring DNSresolution for your virtual cloud network? (Choose two.)
- A. Internet and virtual cloud network (VCN) resolver
- B. Internet and custom resolver
- C. custom resolver
- D. Google DNS servers
正解：A、C
解説：
Explanation
References:https://docs.cloud.oracle.com/iaas/Content/Database/Tasks/launchingDB.htm
質問 # 44
Why are two subnets required to create a public load balancer when additional subnets are often used for back-end servers? (Choose two.)
- A. Performance is higher when more subnets are used.
- B. Routing is simpler when the load balancer is not in the same subnet as the back-end server.
- C. Additional subnets for back-end servers allow for separate route tables for these servers.
- D. Additional subnets for back-end servers allow for separate security lists for these servers.
正解：A、D
解説：
Reference:
http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/ocis/load-balancer/load-balancer.html
質問 # 45
In what two ways does Oracle Cloud Infrastructure (OCI) file storage service differ from OCI object storage and block volume services?
- A. File Storage uses the network file system (NFS) protocol, whereas block volume uses iSCSI.
- B. Block volume service Is NVMe based, while file storage service is not.
- C. You can move object storage buckets, block volumes and file storage mount targets between compartments.
- D. File storage mount target does not provide a private IP address, while the object storage bucket provides one.
正解：A、C
解説：
Explanation
The mount target provides the IP address or DNS name that is used together with a unique export path to mount the file system.
You can move mount targets from one compartment to another.
質問 # 46
Which two statements are true about restoring a block volume from a manual or policy-based block volume backup? (Choose two.)
- A. It can be restored as new volumes with different sizes from the backups
- B. It can be restored as a new volume to any AD across different regions
- C. It can be restored as a new volume to any AD in the same region
- D. It must be restored as a new volume to the same availability domain (AD) on which the original block volume backup resides
正解：A、C
解説：
A - Backups are encrypted and stored in Oracle Cloud Infrastructure Object Storage, and can be restored as new volumes to any availability domain within the same region they are stored.
D- You can restore a block volume backup to a larger volume size. To do this, check Custom Block Volume Size (GB), and then specify the new size. You can only increase the size of the volume, you cannot decrease the size.
質問 # 47
Which three must be configured for a load balancer to accept incoming traffic? (Choose two.)
- A. a listener
- B. a certificate
- C. a back-end server
- D. a back end set
- E. a security list that is open on a listener port
正解：A、C、D
解説：
https://docs.cloud.oracle.com/iaas/Content/Balance/Tasks/managingloadbalancer.htm?tocpath=Services%7CLoad%20Balancing%7C_____5 The essential components for load balancing include: * A load balancer with pre-provisioned bandwidth. * A backend 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 # 48
You currently manage an e-commerce application that utilizes 25 identical compute resources to handle customer traffic. The stakeholders have asked you to create another 25 identical computeresources in order to deploy and test a new version of the software?
What is the most efficient process to create 25 additional compute resources that are identical to the first 25?
- A. Clone the boot volume of 1 of the 25 servers. Use the boot volume clone to provision 25 more servers
- B. Create a custom image from 1 of the 25 servers. Use this custom imageto provision 25 more servers
- C. Provision a new server and configure it to be identical to the first 25. Create a custom image from the new server, then use the custom image to provision 24 more servers
- D. Create a manual backup of each boot volume belonging to the 25 servers. Restore each backup to create
25 new boot volumes, from which you will provision 25 more servers
正解：B
質問 # 49
You are running your warehouse using Autonomous Data Warehouse (ADW) service and you noticed that a newly configured batch job is always running in serial even through nothing else is running in the database.All your jobs are configured to run with parallelism enabled.
What could be the reason for this batch job to run in serial?
- A. The new batch job is connected to LOW consumer group.
- B. The new batch job runs on database tables that are not enable for parallel execution.
- C. The batch job depends on only one table and parallelism cannot be enabled on single-table queries.
- D. Parallelism on the database iscontrolled by the application, not the database.
- E. The parallelism of batchjob depends on the number of ADW databases involved in the query.
正解：A
質問 # 50
Which two are NOT an image source when launching a new compute instance? (Choose two.)
- A. Object Storage
- B. custom image
- C. bare metal instance
- D. boot volume
正解：A、C
質問 # 51
You must implement a backup solution for your Autonomous Data Warehouse (ADW) that will enable you to restore data as old as one year with a recovery point objective (RPO) of 10 days.
Which database backup strategy would you select?
- A. Take quarterly manual backups to supplement the automated backups and preserve them for 12 months.
- B. Take weekly manual backups to supplement the automated backups and preserve them for 12 months.
- C. Take monthly manual backups to supplement the automated backups and preserve them for 12 months.
- D. Use the automated backups.
正解：D
解説：
Oracle Cloud Infrastructure automatically backs up your Autonomous Databases and retains these backups for 60 days. Automatic backups are weekly full backups and daily incremental backups. You can also create manual backups to supplement your automatic backups. Manual backups are stored in an Object Storage bucket that you create, and are retained for 60 days The retention period for manual backups is the same as automatic backups which is 60 days. So we cannot preserve the backup for 12 months
https://docs.oracle.com/en/cloud/paas/autonomous-data-warehouse-cloud/user/backup-manual.html#GUID-D95E5D6A-C470-4A68-9545-CC99D937E7D1
質問 # 52
Which two are Regional resources in Oracle Cloud Infrastructure? (Choose two.)
- A. Compute images
- B. Ephemeral public IPs
- C. Block volume backups
- D. Dynamic groups
- E. Compartments
正解：D、E
質問 # 53
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