Pass Oracle 1Z0-1072-20 exam questions - convert Test Engine to PDF
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NEW QUESTION 57
Which statement is true about Data Guard Implementation in DB systems?
- A. You can define the backup window and set custom backup retention period for the automatic database backup schedule.
- B. Both DB systems must be in the same compartment, and they must be the same shape
- C. You cannot manage the database as sys/sysdba.
- D. You cannot manage Oracle database initialization parameters at a global level.
Answer: B
Explanation:
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 as the 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 is a 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. See Remote VCN Peering (Across Regions).
- Configure the security 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).
NEW QUESTION 58
When terminating a compute instance, which statement is true?
- A. Users can preserve the boot volume associated with the instance.
- B. The instance needs to be stopped first, and then terminated.
- C. All block volumes attached to the instance are terminated.
- D. The boot volume is always deleted.
Answer: A
Explanation:
Explanation
You can permanently terminate (delete) instances that you no longer need. 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.
NEW QUESTION 59
Where are DB Systems backups stored by default?
- A. object storage on Oracle Cloud Infrastructure
- B. ASM disk group
- C. locally attached NVMe on virtual machine
- D. block volume
Answer: A
NEW QUESTION 60
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 people who 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. Create a pre-authenticated request for each data set and only share with the data science team via email
- B. Create a Network Source named CorpNetwork with a CIDR block of 129.146.31.0/27
- C. Write an IAM policy that includes the conditional statement where request.networkSource.name = CorpNet
- D. Write an IAM policy that includes the conditional statement where request.region
129.146.31.0/27 - E. Create a Network Source named CorpNetwork with a CIDR block of 129.146.0.0/16
- F. Set the bucket visibility to public and only share the URL with the data science team via email
Answer: A,E
NEW QUESTION 61
Which two are required parameters to create a public load balancer instance? (Choose two.)
- A. back end set
- B. certificate
- C. two public subnets
- D. load balancer name
- E. listener
Answer: A,E
Explanation:
Explanation
References: https://docs.cloud.oracle.com/en-us/iaas/Content/GSG/Tasks/loadbalancing.htm
NEW QUESTION 62
Which two statements are true when Oracle Data Guard is configured (using the Console) between two Virtual Machine DB Systems deployed in Oracle Cloud Infrastructure? (Choose two.)
- A. Primary is a 2-node RAC DB system and Standby is a 1-node RAC DB system.
- B. Primary is a 1-node RAC DB system and Standby is a 1-node RAC DB system.
- C. Primary is a 1-node RAC DB system and Standby is a 2-node RAC DB system.
- D. Primary is a 2-node RAC DB system and Standby is a 2-node RAC DB system.
- E. Primary is a Bare Metal DB system and Standby is a 1-node RAC DB system.
Answer: B,C
Explanation:
Explanation/Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Concepts/overview.htm
NEW QUESTION 63
Which two statements are true about Oracle Cloud Infrastructure storage services? (Choose two.)
- A. You can take incremental snapshots of Block Volumes, File Storage file systems and Object Storage buckets.
- B. You can move Object Storage buckets, Block Volumes and File Storage mount targets between compartments.
- C. File storage mount target does not provide a private IP address, while the Object Storage bucket provides one.
- D. Block Volume service scales to Exabytes per instance, while File Storage service offers unlimited scalability.
- E. File Storage uses the network file system (NFS) protocol, whereas Block Volume uses iSCSI.
Answer: B,E
NEW QUESTION 64
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 compute instance 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 BM.HPC2.36 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 VM.Standard2.2 shape using the boot volume preserved, but no block volume attached.
- D. 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.
- E. 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.
Answer: B,E
NEW QUESTION 65
Your company decided to move a few applications to Oracle Cloud Infrastructure (OCI) in the US West (us- phoenix-1) region.
You need to design a cloud-based disaster recovery (DR) solution with a requirement to deploy the DR resources in the US East (us-ashburn-1) region to minimize network latency.
What is the recommended deployment?
- A. Deploy production and DR applications in two separate VCNs in different availability domains (ADs) within the primary region, and then use a VCN remote peering connection for connectivity.
- B. Deploy production and DR applications in the same VCN. Create production subnets in one AD, and DR subnets in another AD (assume a multi-AD region).
- C. Deploy production and DR applications in two separate VCNs, each in different regions. Connect them using a VCN remote peering connection.
- D. Deploy production and DR applications in two separate virtual cloud networks (VCNs), each in different regions, and then use VCN local peering gateways for connectivity.
Answer: A
NEW QUESTION 66
You hired a new employee to run reports from the Oracle Autonomous Data Warehouse (ADW) and are not confident in their SQL writing ability.
Into which consumer group will you assign this individual to minimize the impact of their code?
- A. Highest
- B. Lowest
- C. Medium
- D. Low
- E. High
Answer: D
Explanation:
Explanation
When setting the consumer group to low, the user gets low CPUs. He/she can execute commands in a serial manner.
NEW QUESTION 67
Which two are a valid image source when launching a new compute instance? (Choose two.)
- A. boot volume
- B. custom image
- C. object storage
- D. bare metal instance
Answer: A,B
Explanation:
https://docs.cloud.oracle.com/en-us/iaas/Content/Resources/Assets/whitepapers/deploying-custom-os-images.pdf A template of a virtual hard drive that determines the operating system and other software for an instance. For details about Oracle Cloud Infrastructure platform images, see Oracle-Provided Images. You can also launch instances from:
Trusted third-party images published by Oracle partners from the Partner Image catalog. For more information about partner images, see Overview of Marketplace and Working with Listings.
Pre-built Oracle enterprise images and solutions enabled for Oracle Cloud Infrastructure Custom images, including bring your own image scenarios.
Boot Volumes.
NEW QUESTION 68
Which two Oracle Cloud Infrastructure services use a Dynamic Routing Gateway?
- A. OCI FastConnect Public Peering
- B. OCI IPSec VPN Connect
- C. OCI FastConnect Private Peering
- D. Local Peering
- E. Internet Gateway
Answer: B,C
Explanation:
Explanation
You can think of a DRG as a virtual router that provides a path for private traffic (that is, traffic that uses private IPv4 addresses) between your VCN and networks outside the VCN's region.
You use a DRG when connecting your existing on-premises network to your virtual cloud network (VCN) with one (or both) of these:
IPSec VPN
Oracle Cloud Infrastructure FastConnect (Private Only)
You also use a DRG when peering a VCN with a VCN in a different region:
Remote VCN Peering (Across Regions)
NEW QUESTION 69
As an Oracle Cloud Infrastructure tenancy administrator, you created predefined lists of values and associated them with tag key definitions.
One of the users in your tenancy complains that she cannot see these predefined values.
What is causing this issue?
- A. The user is not part of an Identity and Access Management group that gives access to tagging.
- B. Some of the predefined values are null.
- C. The user is trying to use free-form tags.
- D. The user has breached either the quota or service limit for using tags.
Answer: C
Explanation:
Reference:
https://docs.cloud.oracle.com/en-us/iaas/Content/Tagging/Tasks/usingpredefinedvalues.htm
NEW QUESTION 70
You are designing a lab exercise for your team that has a large number of graphics with large file sizes. The application becomes unresponsive if the graphics are embedded in the application. You have uploaded the graphics to Oracle Cloud Infrastructure and only added the URL in the application. You need to ensure these graphics are accessible without requiring any authentication for an extended period of time.
How can you achieve these requirements?
- A. Make the object storage bucket private and all objects public and use the URL found in the Object "Details".
- B. Create pre-authenticated requests (PAR) and specify 00:00:0000 as the expiration time.
- C. Create PARs and do not specify an expiration date.
- D. Make the object storage bucket public and use the URL found in the Object "Details".
Answer: D
Explanation:
Pre-authenticated requests provide a way to let you access a bucket or an object without having your own credentials. For example, you can create a request that lets you upload backups to a bucket without owning API keys.
When you create a bucket, the bucket is considered a private bucket and the access to the bucket and bucket contents requires authentication and authorization. However, Object Storage supports anonymous, unauthenticated access to a bucket. You make a bucket public by enabling read access to the bucket.
pre-authenticated requests have to select expiration date
NEW QUESTION 71
Which two statements are true about restoring a block volume from a manual or policy-based block volume backup? (Choose two.)
- A. It must be restored as a new volume to the same availability domain (AD) on which the original block volume backup resides
- B. It can be restored as a new volume to any AD across different regions
- C. It can be restored as new volumes with different sizes from the backups
- D. It can be restored as a new volume to any AD in the same region
Answer: C,D
Explanation:
Explanation
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.
NEW QUESTION 72
Which two use Oracle dynamic routing gateway (DRG) for connectivity? (Choose two.)
- A. Oracle IPsec VPN
- B. Local VCN peering
- C. Oracle Cloud Infrastructure FastConnect public peering
- D. Remote virtual cloud network (VCN) peering across region
Answer: A,D
Explanation:
Explanation
References: https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Concepts/fastconnectoverview.htm You use a DRG when connecting your existing on-premises network to your virtual cloud network (VCN) with one (or both) of these:
IPSec VPN
Oracle Cloud Infrastructure FastConnect
You also use a DRG when peering a VCN with a VCN in a different region:
Remote VCN Peering (Across Regions)
NEW QUESTION 73
You have an application running on Oracle Cloud Infrastructure. You identified that the read and write operations are slowing your application down enough to impair user access. The application is currently using a VM.Standard 1.2 compute without any block storage attached to it.
Which two options allow you to increase disk performance? (Choose two.)
- A. Create a backup of the boot volume. Create a new compute instance using a VM Dense IO shape and restore the backup.
- B. Terminate the compute instance and create a backup of the boot volume. Create a new compute instance using a VM Dense IO shape and restore the backup.
- C. Terminate the compute instance preserving the boot volume. Create a new compute instance using a VM Dense IO shape using the boot volume preserved.
- D. Terminate the compute instance preserving the boot volume. Create a new compute instance using a VM Standard shape and attach a new block volume to host your application.
Answer: C,D
Explanation:
Explanation
You can permanently terminate (delete) instances that you no longer need.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.
You can use a boot volume backup to create an instance or you can attach it to another instance as a data volume. However before you can use a boot volume backup, you need to restore it to a boot volume.
NEW QUESTION 74
Which two statements are true about subnets within a VCN? (Choose two.)
- A. Instances obtain their private IP and the associated security list from their subnets.
- B. Private and Public subnets cannot reside in the same Availability Domain for a given VCN.
- C. Subnets can have their IP addresses overlap with other subnets in another network for a given VCN.
- D. You can have multiple subnets in an Availability Domain for a given VCN.
Answer: A,D
Explanation:
Explanation
References: https://cloud.oracle.com/en_US/bare-metal-network/vcn/faq
NEW QUESTION 75
You deployed a compute instance (VM.Standard2.16) to run a SQL database. After a few weeks, you need to increase disk performance by using NVMe disks; the number of CPUs will not change. 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 and move the SQL Database data to block volume
- 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 move the SQL Database data to NVMe disks
Answer: D
Explanation:
Explanation
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
NEW QUESTION 76
Which statement is true about the Oracle Cloud Infrastructure File Storage Service Snapshots?
- A. You can restore the whole snapshot, but not the individual files
- B. Snapshots are not incremental
- C. It Is not possible to create snapshots from OCI console, but just the CLI
- D. Snapshots are created under the root folder of file system, in a hidden directory named .snapshot
Answer: D
Explanation:
Explanation
The File Storage service supports snapshots for data protection of your file system. Snapshots are a consistent, point-in-time view of your file systems. Snapshots are copy-on-write, and scoped to the entire file system. The File Storage service encrypts all file system and snapshot data at rest. You can take as many snapshots as you need.
Data usage is metered against differentiated snapshot data. If nothing has changed within the file system since the last snapshot was taken, the new snapshot does not consume more storage Snapshots are accessible under the root directory of the file system at .snapshot/name. For data protection, you can use a tool that supports NFSv3 to copy your data to a different availability domain, region, file system, object storage, or remote location.
NEW QUESTION 77
Which two options are necessary for achieving high availability on Oracle Cloud Infrastructure?
- A. Store your database across multiple regions so that half of the data resides in one region and the other half resides in another region.
- B. Store your database files on Object Storage so that they are available in all Availability Domains in all regions.
- C. Distribute your application servers across all Availability Domains within a region.
- D. Attach your block volume form Availability Domain 1 to a compute instance in Availability Domain 2 (and vice versa) so that they are highly available.
- E. Configure your database to have Data Guard in another Availability Domain in Sync mode within a region.
Answer: C,E
Explanation:
Explanation
All details can find in "Best Practices for Deploying High Availability Architecture on Oracle Cloud Infrastructure"
https://docs.cloud.oracle.com/en-us/iaas/Content/Resources/Assets/whitepapers/best-practices-deploying-ha-arch
NEW QUESTION 78
Where do you find the tnsnames.ora for your Autonomous Data Warehouse (ADW) database?
- A. You are automatically prompted to download the tnsnames.ora file upon creation of the ADW database
- 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. The ADW database will place the tnsnames.ora file in an object storage bucket
Answer: B
Explanation:
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.
NEW QUESTION 79
You have an application deployed in Oracle Cloud Infrastructure running only in the Phoenix region. You were asked to create a disaster recovery (DR) plan that will protect against the loss of critical data. The DR site must be at least 500 miles from your primary site and data transfer between the two sites must not traverse the public Internet.
Which is the recommended disaster recovery plan?
- A. Create a DR environment in Ashburn. Associate a dynamic routing gateway (DRG) with the VCN in each region and configure an IPsec VPN connection between the two regions.
- B. Create a new virtual cloud network (VCN) in the Phoenix region and create a subnet in one availability domain (AD) that is not currently being used by your production systems. Establish VCN peering between the production and DR sites.
- C. Create a DR environment in Ashburn and provision a FastConnect virtual circuit using DRG between the regions.
- D. Create a DR environment in Ashburn. Associate a DRG with the VCN in each region and create a remote peering connection between the two VCNs.
Answer: D
Explanation:
Explanation
Remote VCN peering is the process of connecting two VCNs in different regions (but the same tenancy ). The peering allows the VCNs' resources to communicate using private IP addresses without routing the traffic over the internet or through your on-premises network. Without peering, a given VCN would need an internet gateway and public IP addresses for the instances that need to communicate with another VCN in a different region.
At a high level, the Networking service components required for a remote peering include:
- Two VCNs with non-overlapping CIDRs, in different regions that support remote peering. The VCNs must be in the same tenancy.
- A dynamic routing gateway (DRG) attached to each VCN in the peering relationship. Your VCN already has a DRG if you're using an IPSec VPN or an Oracle Cloud Infrastructure FastConnect private virtual circuit.
A remote peering connection (RPC) on each DRG in the peering relationship.
A connection between those two RPCs.
Supporting route rules to enable traffic to flow over the connection, and only to and from select subnets in the respective VCNs (if desired).
Supporting security rules to control the types of traffic allowed to and from the instances in the subnets that need to communicate with the other VCN.
NEW QUESTION 80
Your company has decided to move a few applications to Oracle Cloud Infrastructure (OCI) and you have been asked to design a cloud-based disaster recovery (DR) solution. One of the requirements is to deploy the DR resources at least 300 miles from the home OCI region and minimize the network latency.
What will be the recommended deployment?
- A. Deploy production and DR applications in two separate VCNs, each in different regions. Connect them using a VCN remote peering connection.
- B. Deploy production and DR applications in two separate VCNs in different availability domains (ADs) within your home region, and then use a VCN remote peering connection for connectivity.
- C. Deploy production and DR applications in the same VCN. Create production subnets in one AD, and DR subnets in another AD.
- D. Deploy production and DR applications in two separate virtual cloud networks (VCNs), each in different regions, and then use VCN local peering gateways for connectivity.
Answer: A
Explanation:
Explanation
Remote VCN peering is the process of connecting two VCNs in different regions The peering allows the VCNs' resources to communicate using private IP addresses without routing the traffic over the internet or through your on-premises network.
NEW QUESTION 81
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