1z0-1072-23 Practice Exams and Training Solutions for Certifications
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Oracle 1z0-1072-23 Exam Syllabus Topics:
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NEW QUESTION # 15
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. Change the ingress rules corresponding to the DB System subnet to be stateful.
- B. 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.
- C. 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.
- D. Modify the security list associated with the subnet where the mount target resides.
- E. Create an NFS export option that allows READ_ONLY access where the source is the CIDR range of the DB System subnet.
Answer: E
Explanation:
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]
NEW QUESTION # 16
You create a file system and then add a 2 GB file. You then take a snapshot of the file system.
What would be the total meteredBytes shown by the File Storage service after the hourly update cycle is complete?
- A. 3 GB
- B. 4 GB
- C. 2 GB
- D. 2.5 GB
Answer: C
Explanation:
The total meteredBytes shown by the File Storage service after the hourly update cycle is complete would be 2 GB. This is because snapshots do not consume any additional storage space unless there are changes made to the file system after taking the snapshot. Since no changes were made in this scenario, the snapshot would not add any extra storage cost. Reference: [Snapshots and MeteredBytes]
NEW QUESTION # 17
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 with an initial size of 5 instances for 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 daily schedule. On weekday mornings at 8.30 a.m., scale out to 10 instances.
- B. Goal: A one-time schedule with only one scaling out event. At 8:30 a.m., on December 31, 2021, scale the instance pool to 10 instances from 5.
- 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 recurring weekly schedule. On all days of the week at 8.30 a.m., scale out the pool to 10 instances from the initial size of 5
Answer: A
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.
NEW QUESTION # 18
You are in the process of migrating several legacy applications from on-premises to Oracle Cloud Infrastructure (OCI). The current servers are already virtualized. However, you notice that the version of CentOS currentlyrunning does not align with any of the Oracle-provided compute images.How would you migrate your existing virtual server images to OCI?
- A. Export your current image in the QCOW2 format and copy to an Object Storage bucket. Import it as a custom image. Select emulated mode to ensure compatibility with legacy drivers
- B. Export your current image in the QED format and copy to an Object Storagebucket. Import it as a customimage. Select emulated modeto ensure compatibility with legacy drivers.
- C. Export your current image in the VDI format and copy to an Object Storagebucket. Import it as a customimage. Select native modeto ensure the best possible performance.
- D. Export your current image in the VMDK format and copy to an Object Storage bucket. Import it as a custom image. Select native mode to ensure the best possible performance.
Answer: A
Explanation:
Explanation
Export your current image in the QCOW2 format and copy to an Object Storage bucket. Import it as a custom image. Select emulated mode to ensure compatibility with legacy drivers. The explanation is that QCOW2 is one of the supported formats for importing custom images to OCI. Custom images are images that you can create from your own on-premises or cloud servers and use them to launch instances in OCI. To import a custom image, you need to export your current image in a supported format, copy it to an Object Storage bucket, and then import it as a custom image using the OCI console or API. When you import a custom image, you can choose between native mode or emulated mode. Native mode offers better performance but requires compatible drivers and firmware. Emulated mode offers better compatibility but lower performance.
NEW QUESTION # 19
You are responsible for deploying an application on Oracle Cloud Infrastructure (OCI). The application is memoryintensive and performs poorly if enough memory is not available. You have created an instance pool of Linuxcompute instances in OCI to host the application and defined Autoscaling Configuration for the instance pool.
What should you do to ensure that the instance pool autoscales to prevent poor application performance?
- A. Install OCI SDK on all compute instances and create a script that triggers theautoscaling event if there ishigh memory usage.
- B. Configure the autoscaling policy to monitor CPU usage and scale up the number of instances when it meets the threshold
- C. Install the monitoring agent on all compute instances, which triggers the autoscaling group.
- D. Configure the autoscaling policy to monitor memory usage and scale up the number of instances when itmeets the threshold.
Answer: D
NEW QUESTION # 20
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. Create a custom image and use it as a template for the new instances.
- D. Bring your own image and use it as a template for the new instances.
Answer: C
Explanation:
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]
NEW QUESTION # 21
You are part of a team that manages a set of workload instances running in an on-premises environment.
TheArchitect team is tasked with designing and configuring Oracle Cloud Infrastructure (OCI) Logging service tocollect logs from these instances. There is a requirement to archive Info-level logging data of these instances intothe OCI Object Storage.
Which TWO features of OCI can help you achieve this?
- A. Service Connectors
- B. Grouping Function
- C. Agent Configuration
- D. ObjectCollectionRule
- E. Cloud Agent Plugin
Answer: A,E
Explanation:
Explanation
Cloud Agent Plugin and Service Connectors are two features of OCI that can help collect logs from on-premises instances and archive them into OCI Object Storage. Cloud Agent Plugin is a component of the OCI Logging service that can be installed on any Linux or Windows instance to collect logs and send them to OCI. Service Connectors are components of the OCI Service Connector Hub that can transfer data between different OCI services, such as Logging and Object Storage. The other options are not relevant for this requirement. References: [Cloud Agent Plugin], [Service Connectors]
NEW QUESTION # 22
As a network architect you have deployed a public subnet on your Virtual Cloud Network (VCN) with this security list:
You have also created a network security group (NSG) as shown in the table here, and assigned it to your bastion host:
You have confirmed that routing is correct but when you SSH to the VM from your home over the Internet youare unable to connect.
What could be the problem?
- A. SSH traffic is not allowed in the security list nor on the NSG from the Internet.
- B. User will be able to SSH to the VM from the Internet as SSH is open on the NSG.
- C. Public subnet does not have a route rule to the Internet Gateway.
- D. Internet traffic should be allowed only on the NSG.
Answer: A
Explanation:
Explanation
SSH traffic is not allowed in the security list nor on the NSG from the Internet is the correct answer. This is because the security list only allows ingress traffic from 10.0.0.24 on port 22, and the NSG only allows ingress traffic from 10.0.0.0/16 on port 22. Neither of them allows ingress traffic from 0.0.0.0/0 (the Internet) on port
22, which is required for SSH access. The other options are not correct, as they do not explain why SSH access is not possible. References: [Security Lists], [Network Security Groups]
NEW QUESTION # 23
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 Vulnerability Scanning Service.
- C. Use in-transit encryption.
- D. Create a shielded instance.
Answer: D
Explanation:
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.
NEW QUESTION # 24
Which statement is true about File System Replication in Oracle Cloud Infrastructure (OCI)?
- A. You cannot specify a replication interval when you create the replication resource.
- B. You can replicate the data in one file system to another file system in the same region or a different region.
- C. Only a file system that has been exported can be used as a target file system.
- D. You can replicate the data in one file system to another file system only in the same region.
Answer: B
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. Reference: [File System Replication]
NEW QUESTION # 25
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 a backupfor the boot volumes that will be done daily and a backup for the block volumes that will be done every six hours.
How can you meet this requirement?
- A. Create clones of all boot volumes and block volumes one at a time.
- B. Create on-demand full backups of block volumes, and create custom images from the boot volumes. Use afunction to run at a specific time to start the backup process.
- C. Group the boot volumes into a volume group and create a custom backup policy. Group the block volumesand create a custom backup policy.
- D. Group multiple storage volumes in a volume group and create volume group backups.
Answer: C
Explanation:
Explanation
Group the boot volumes into a volume group and create a custom backup policy. Group the block volumes and create a custom backup policy. The explanation is that volume groups are logical collections of block volumes and boot volumes that can be backed up together as a consistent point-in-time snapshot. You can create a custom backup policy for each volume group and specify the frequency and retention period of the backups.
This way, you can meet different backup requirements for different types of volumes.
NEW QUESTION # 26
You have a block volume created in the US West (Phoenix) region. You enabled Cross Region Replication for the volume and selected US West (San Jose) as the destination region. Now, you would like to create a new volume from the volume replica in the US West (San Jose) region.
What should you do?
- A. Initiate the replica.
- B. Trigger the replica.
- C. Activate the replica.
- D. No action required. By default, the replica is available as a block volume.
Answer: C
Explanation:
The explanation is that when you enable Cross Region Replication for a block volume, Object Storage creates a replica of the volume in another region of your choice. The replica is not available as a block volume until you activate it. To activate a replica, you need to select the replica from the Block Storage console and click Activate Replica. This will create a new block volume from the replica in the destination region.
NEW QUESTION # 27
company sells services to photographers where patrons can preview the photos that they want prints for.
To avoid unauthorized copies, the sample photos have lower resolution and are watermarked. The photos are processed after they are uploaded. The process is fast but not immediate. It creates samples and sends them to storage outside of the instances. Which type of instance is ideal for a process like this; short lived and one that keeps the cost low?
- A. Spot instances
- B. On-demand instances
- C. Preemptible instances
- D. Burstable instances
Answer: C
Explanation:
The explanation is that preemptible instances are VM instances that offer lower costs than regular instances but can be reclaimed by OCI at any time due to capacity constraints or after running for a maximum of 24 hours. Preemptible instances are ideal for short-lived and stateless workloads that can tolerate interruptions and do not require guaranteed availability or performance. Preemptible instances are billed by the second at a fixed rate that is lower than regular instances.
NEW QUESTION # 28
You are using a custom application with third-party APIs to manage the application and data hosted in an Oracle Cloud Infrastructure (OCI) tenancy. Although your third-party APIs do not support OCI's signature-based authentication, you want them to communicate with OCI resources. Which authentication option should you use to ensure this?
- A. OCI Username and Password
- B. API Signing Key
- C. Auth Tokens
- D. SSH Key Pair with 2048-bit algorithm
Answer: C
Explanation:
Auth Tokens is the authentication option that you should use to ensure that your custom application with third-party APIs can communicate with OCI resources. Auth Tokens are tokens that can be used as an alternative to passwords when making API calls to OCI services. Auth Tokens can be generated and revoked by users in the OCI Console or CLI, and can be used with any API client that supports basic authentication. The other options are not suitable for this scenario, as they either require OCI's signature-based authentication or are not applicable for API calls. Reference: [Auth Tokens]
NEW QUESTION # 29
As a network architect you have deployed a public subnet on your Virtual Cloud Network (VCN) with this security list:
You have also created a network security group (NSG) as shown in the table here, and assigned it to your bastion host:
You have confirmed that routing is correct but when you SSH to the VM from your home over the Internet you are unable to connect.
What could be the problem?
- A. SSH traffic is not allowed in the security list nor on the NSG from the Internet.
- B. User will be able to SSH to the VM from the Internet as SSH is open on the NSG.
- C. Public subnet does not have a route rule to the Internet Gateway.
- D. Internet traffic should be allowed only on the NSG.
Answer: A
Explanation:
SSH traffic is not allowed in the security list nor on the NSG from the Internet is the correct answer. This is because the security list only allows ingress traffic from 10.0.0.24 on port 22, and the NSG only allows ingress traffic from 10.0.0.0/16 on port 22. Neither of them allows ingress traffic from 0.0.0.0/0 (the Internet) on port 22, which is required for SSH access. The other options are not correct, as they do not explain why SSH access is not possible. Reference: [Security Lists], [Network Security Groups]
NEW QUESTION # 30
Which of the following statements is true about cloning a volume in the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. You can clone a volume to another region.
- B. You can change the block volume size when cloning a volume.
- C. You need to detach a volume before cloning it.
- D. Creating a clone takes longer than creating a backup of a volume.
Answer: B
Explanation:
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.
NEW QUESTION # 31
Which TWO statements are NOTcorrect regarding the Oracle Cloud Infrastructure (OCI) burstable instances?
- A. Baseline utilization is a fraction of each CPU core, either 25% or 75%.
- B. Burstable instances are charged according to the baseline OCPU.
- C. If the instance's average CPU utilization over the past 24 hours is below the baseline, the system allows it to burst above the baseline.
- D. Burstable instances are designed for scenarios where an instance is not typically idle and has high CPU utilization.
- E. Burstable instances cost less than regular instances with the same total OCPU count.
Answer: A,D
Explanation:
The explanation is that burstable instances are VM instances that have a baseline utilization of either 12% or 50% of each CPU core, not 25% or 75%. Burstable instances are designed for scenarios where an instance is typically idle or has low CPU utilization but occasionally needs to burst above the baseline to handle spikes in demand. Burstable instances cost less than regular instances with the same total OCPU count but charge extra for bursting above the baseline OCPU.
NEW QUESTION # 32
Which TWO statements about the Oracle Cloud Infrastructure (OCI) File Storage Service are accurate?
- A. Customer can encrypt the communication to a mount target via export options.
- 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. File systems use Oracle-managed keys by default.
Answer: D,E
Explanation:
File systems use Oracle-managed keys by default. Customer can encrypt data in their file system using their own Vault encryption key. The explanation is that File Storage Service encrypts all data at rest using AES-256 encryption algorithm. By default, File Storage Service uses Oracle-managed keys to encrypt and decrypt data. However, you can also use your own Vault encryption key to encrypt data in your file system. To do so, you need to create a key in Vault and associate it with your file system when you create or update it.
NEW QUESTION # 33
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. Statistic
- B. Namespace
- C. Interval
- D. Dimension
Answer: C
Explanation:
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]
NEW QUESTION # 34
Which TWO components are optional while creating the Monitoring Query Language (MQL) expressions in the Oracle Cloud Infrastructure (OCI) Monitoring service?
- A. Interval
- B. Grouping Function
- C. Metric
- D. Statistic
- E. Dimensions
Answer: B,E
Explanation:
Dimensions and Grouping Function are two optional components while creating the Monitoring Query Language (MQL) expressions in the OCI Monitoring service. Dimensions are key-value pairs that provide additional information about a metric, such as region, compartment, or resource type. Grouping Function is a function that aggregates metric data across one or more dimensions, such as sum, count, or average. The other options are required components for MQL expressions. Reference: [Dimensions], [Grouping Function]
NEW QUESTION # 35
Which statement accurately describes the key features and benefits of OCI Confidential Computing?
- A. It optimizes network performance and reduces latency through advancedrouting algorithms and cachingmechanisms.
- B. It enables users to securely store and retrieve data by using distributed file systems, ensuring high availability and fault tolerance.
- C. It encrypts and isolates in-use data and the applications processing that data, thereby preventing unauthorized access or modification.
- D. It provides automatic scalability and load balancing capabilities, which allow seamless integration withother cloud providers.
Answer: C
Explanation:
Explanation
It encrypts and isolates in-use data and the applications processing that data, thereby preventing unauthorized access or modification is an accurate description of the key features and benefits of OCI Confidential Computing. Confidential Computing is a feature that leverages hardware-based Trusted Execution Environments (TEEs) to protect data and applications from unauthorized access or modification while they are in use by the CPU or memory. This adds an extra layer of security to cloud computing, as it protects data not only at rest and in transit, but also in use. The other options are not accurate descriptions of the key features and benefits of OCI Confidential Computing. References: [Confidential Computing]
NEW QUESTION # 36
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. Google Cloud
- B. Microsoft Azure
- C. IBM Cloud
- D. Alibaba Cloud
- E. Amazon Web Services
- F. OCI
- G. Digital Ocean
Answer: B
Explanation:
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.
NEW QUESTION # 37
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 in your 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. Create a custom image and use it as a template for the new instances.
- D. Bring your own image and use it as a template for the new instances.
Answer: C
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. Reference: [Custom Images]
NEW QUESTION # 38
You are part of a team that manages a set of workload instances running in an on-premises environment. The Architect team is tasked with designing and configuring Oracle Cloud Infrastructure (OCI) Logging service to collect logs from these instances. There is a requirement to archive Info-level logging data of these instances into the OCI Object Storage.
Which TWO features of OCI can help you achieve this?
- A. Service Connectors
- B. Grouping Function
- C. Agent Configuration
- D. ObjectCollectionRule
- E. Cloud Agent Plugin
Answer: A,E
Explanation:
Cloud Agent Plugin and Service Connectors are two features of OCI that can help collect logs from on-premises instances and archive them into OCI Object Storage. Cloud Agent Plugin is a component of the OCI Logging service that can be installed on any Linux or Windows instance to collect logs and send them to OCI. Service Connectors are components of the OCI Service Connector Hub that can transfer data between different OCI services, such as Logging and Object Storage. The other options are not relevant for this requirement. Reference: [Cloud Agent Plugin], [Service Connectors]
NEW QUESTION # 39
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