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Oracle 1z0-1072-23 Exam Syllabus Topics:
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NEW QUESTION # 18
You have an instance running in Oracle Cloud Infrastructure (OCI) that cannot be live-migrated during an infrastructure maintenance event. OCI schedules a maintenance due date within14 to 16 days and sends you anotification.
What would happen if you choose not to proactively reboot the instance beforethe scheduled maintenance duedate?
- A. You will receive another notification to reboot within the next 14 days.
- B. The instance is either reboot-migrated or rebuilt in place for you.
- C. You will receive another notification to reboot within the next 7 days.
- D. The instance will get terminated.
Answer: B
Explanation:
Explanation
If you choose not to proactively reboot the instance before the scheduled maintenance due date, the instance is either reboot-migrated or rebuilt in place for you. Reboot-migration is a process where OCI migrates your instance to a new physical host without changing its configuration or public IP address. Rebuild in place is a process where OCI shuts down your instance, performs maintenance on the physical host, and restarts your instance with the same configuration and public IP address. The other options are not correct. References:
[Reboot-Migration], [Rebuild in Place]
NEW QUESTION # 19
Which tool provides a diagram of the implemented topology of all Virtual Cloud Networks (VCNs) in a selected region and tenancy?
- A. Traffic Analytics
- B. Network Visualizer
- C. VCN Flow Logs
- D. Network Watcher
Answer: B
Explanation:
Explanation
Network Visualizer is the tool that provides a diagram of the implemented topology of all VCNs in a selected region and tenancy. Network Visualizer is a feature of the OCI Networking service that allows users to view and manage their network resources in a graphical interface. It can help users understand their network topology, troubleshoot issues, and optimize performance. The other options are not tools that provide a diagram of the VCN topology, but rather other features or services of OCI Networking. References: [Network Visualizer]
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 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. Create a custom image and use it as a template for the new instances.
- C. Bring your own image and use it as a template for the new instances.
- D. Use Oracle-provided images and customize the installation using a third-party tool.
Answer: B
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 # 21
When creating an Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN) with the VCN wizard, which THREE gateways are created automatically?
- A. Storage Gateway
- B. Bastion Host
- C. Dynamic Routing Gateway
- D. Service Gateway
- E. NAT Gateway
- F. Local Peering Gateway
- G. Internet Gateway
Answer: D,E,G
Explanation:
Explanation
Internet Gateway, NAT Gateway, and Service Gateway are three gateways that are created automatically when creating a VCN with the VCN wizard. An Internet Gateway allows public traffic between the VCN and the internet. A NAT Gateway allows private traffic from the VCN to access the internet without exposing the VCN resources to incoming internet connections. A Service Gateway allows private traffic from the VCN to access OCI services such as Object Storage, Email Delivery, and Notifications. The other options are not created automatically by the VCN wizard, but can be added manually later if needed. References: [VCN Wizard], [Gateways]
NEW QUESTION # 22
You have objects stored in an OCI Object Storage bucket that you want to share with a partner company. You decide to use pre-authenticated requests to grant access to the objects. Which statement is true about preauthenticated requests?
- A. Pre-authenticated requests can be used to delete buckets or objects.
- B. Deleting a pre-authenticated request does not revoke user access to the associated bucket or object.
- C. You need to provide your OCI credentials to the partner company.
- D. You cannot edit a pre-authenticated request.
Answer: D
Explanation:
You cannot edit a pre-authenticated request is a true statement about pre-authenticated requests. Pre-authenticated requests are URLs that allow users to access objects or buckets in OCI Object Storage without requiring additional authentication or authorization. Pre-authenticated requests can be created with an expiration date and time, and can be used for read or write operations. However, once created, pre-authenticated requests cannot be edited, but can only be deleted or extended. The other statements are false about pre-authenticated requests. Reference: [Pre-Authenticated Requests]
NEW QUESTION # 23
Company XYZ is spending $300,000.00 USD per month in egress fees for 7 Petabytes that they consume for Outbound Data Transfer in North America with their current cloud provider. The company is seeking to lower that expense considerably without reducing consumption. You propose migration to OCI because the Gigabyte Outbound Data Transfer in North America costs just $0.0085 USD per month. With OCI, how much will they spend per month for 7 Petabytes of Outbound Data Transfer? (1 Petabyte = 1000 Terabytes)
- A. $150,000.00
- B. $0.00 (free with OCI)
- C. $59,500.00
- D. $59,415.00
Answer: C
Explanation:
$59,415.00 is the amount that Company XYZ will spend per month for 7 Petabytes of Outbound Data Transfer in North America with OCI. This is calculated by multiplying 7 Petabytes by 1000 Terabytes (to convert Petabytes to Terabytes), then multiplying by $0.0085 USD (the cost per Gigabyte Outbound Data Transfer in North America), then dividing by 1000 (to convert Gigabytes to Terabytes). The formula is:
(7 * 1000 * 0.0085) / 1000 = $59,415.00
NEW QUESTION # 24
As your company's cloud architect, you have been invited by the CEO to join his staff meeting. They want your input on interconnecting Oracle Cloud Infrastructure (OCI) to another cloud provider 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. Digital Ocean
- B. Amazon Web Services
- C. Microsoft Azure
- D. Google Cloud
- E. Alibaba Cloud
- F. OCI
- G. IBM Cloud
Answer: C
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 # 25
Which TWO components are optional while creating the Monitoring Query Language (MQL) expressions in the Oracle Cloud Infrastructure (OCI) Monitoring service?
- A. Metric
- B. Interval
- C. Dimensions
- D. Grouping Function
- E. Statistic
Answer: C,D
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 # 26
You plan to upload a large file (3 TiB) to Oracle Cloud Infrastructure (OCI) Object Storage. You would like to minimize the impact of network failures while uploading, and therefore you decide to use the multipart upload capability.
Which TWO statements are true about performing a multipart upload using the Multipart Upload API?
- A. You do not have to commit the upload after you have uploaded all the object parts.
- B. When you split the object into individual parts, each part can be as large as 50 GiB.
- C. You do not need to split the object into parts. Object Storage splits the object into parts and uploads all of the parts automatically.
- D. While a multipart upload is still active, you can keep adding parts as long as the total number is less than 10,000.
Answer: B,D
Explanation:
While a multipart upload is still active, you can keep adding parts as long as the total number is less than 10,000. When you split the object into individual parts, each part can be as large as 50 GiB. The explanation is that a multipart upload allows you to upload a large object in parts, which can improve performance and reliability. You need to split the object into parts yourself and upload each part separately using the Multipart Upload API. You can add parts to an active multipart upload until you reach the maximum number of 10,000 parts per upload. Each part can range from 10 MiB to 50 GiB in size, except for the last part, which can be any size.
NEW QUESTION # 27
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 VMDK format and copy to an Object Storage bucket. Import it as a custom image. Select native mode to ensure the best possible performance.
- B. 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
- C. 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.
- D. 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.
Answer: B
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 # 28
You are a security administrator for your company's Oracle Cloud Infrastructure (OCI) tenancy. Your storage administrator informs you that she cannot associate an encryption key from an existing Vault to a new Object Storage bucket.
What could be a possible reason for this behavior?
- A. The storage administrator forgot to select "Encrypt using Oracle managed keys" while creating the bucket.
- B. The secret for the key was not created beforehand
- C. The Object Storage bucket policy lacks the necessary Access Control List (ACL).
- D. There is no Identity and Access Management (IAM) policy that allows the Object Storage service to use the key.
Answer: D
Explanation:
There is no Identity and Access Management (IAM) policy that allows the Object Storage service to use the key. The explanation is that when you create an Object Storage bucket with encryption using a customer-managed key from Vault, you need to have an IAM policy that allows the Object Storage service to use the key on your behalf. The policy should look like this:
allow service objectstorage-<region> to use key in compartment <compartment-name> where <region> is the region where your bucket resides and <compartment-name> is the compartment where your key resides.
NEW QUESTION # 29
Your DevOps team needs to interconnect the on-premises network to the Oracle Cloud Infrastructure (OCI) resources, such as a managed database that resides in a private subnet. They indicate that they have a low budget and their bandwidth requirements are minimal, so you decide that a site-to-site VPN is the best option.
They provide you with their router public IP address. You need to create an object in OCI that represents this router. Which object would you create?
- A. Internet Gateway
- B. Bastion Host
- C. IPSec Tunnel
- D. Customer Premises Equipment (CPE)
- E. Virtual Network Interface Card (vNIC)
- F. Dynamic Routing Gateway (DRG)
Answer: D
Explanation:
Customer Premises Equipment (CPE). The explanation is that CPE is an object in OCI that represents your on-premises router or VPN device that connects to your VCN via a site-to-site VPN. A site-to-site VPN is a secure and encrypted connection between your on-premises network and your VCN over the public internet. To set up a site-to-site VPN, you need to create a CPE object with your router's public IP address and other information, such as vendor and platform. You also need to create a Dynamic Routing Gateway (DRG) object in your VCN and attach it to your VCN. Then, you need to create an IPSec connection between your CPE and DRG, which will create two redundant VPN tunnels for high availability.
NEW QUESTION # 30
Which TWO statements are TRUE about Private IP addresses in Oracle Cloud Infrastructure (OCI)?
- A. By default, the primary VNIC of an instance in a subnet has one primary private IP address and one secondary private IP address.
- B. Each VNIC can only have one private IP address.
- C. A private IP can have an optional public IP assigned to it if it resides in a public subnet.
- D. By default, the primary VNIC of an instance in a subnet has one primary private IP address.
Answer: C,D
Explanation:
Explanation
By default, the primary VNIC of an instance in a subnet has one primary private IP address. A private IP can have an optional public IP assigned to it if it resides in a public subnet. The explanation is that a private IP address is an IPv4 address that is assigned to a VNIC and belongs to the CIDR block of the VCN or subnet.
By default, the primary VNIC of an instance in a subnet has one primary private IP address, which is automatically assigned by OCI and cannot be changed. However, you can also assign secondary private IP addresses to a VNIC, either manually or automatically, up to a maximum of 31 per VNIC. A private IP address can have an optional public IP address assigned to it, which allows the instance to communicate with the internet. A public IP address can be either ephemeral or reserved, depending on whether you want to keep it after stopping or terminating the instance. A private IP address can only have a public IP address assigned to it if it resides in a public subnet, which means that the subnet's route table has a route rule that directs traffic to the internet gateway.
NEW QUESTION # 31
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. File systems use Oracle-managed keys by default.
- D. Customer can encrypt data in their file system using their own Vault encryption key.
- E. Mount targets use Oracle-managed keys by default.
Answer: C,D
Explanation:
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 # 32
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 areprocessed after they are uploaded. The process is fast but not immediate. It creates samples and sends them tostorage outside of the instances.Which type of instance is ideal for a process likethis; short lived and one thatkeeps the cost low?
- A. Preemptible instances
- B. On-demand instances
- C. Spot instances
- D. Burstable instances
Answer: A
Explanation:
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 # 33
Which THREE protocols are supported by the Oracle Cloud Infrastructure (OCI) Network Load Balancer?
- A. BGP
- B. ICMP
- C. TCP
- D. iSCSI
- E. HTTP
- F. UDP
Answer: B,C,F
Explanation:
The explanation is that the OCI Network Load Balancer supports three protocols: UDP, TCP, and ICMP. These protocols are used to distribute traffic across multiple backend servers based on different criteria, such as source and destination IP addresses, ports, and ICMP types and codes.
NEW QUESTION # 34
You have a block volume created in the US West (Phoenix) region. You enabled Cross Region Replication for thevolume and selected US West (San Jose) as the destination region. Now, you would like to create a new volumefrom the volume replica in the US West (San Jose) region.
What should you do?
- A. Activate the replica.
- B. Initiate the replica.
- C. No action required. By default, the replica is available as a block volume.
- D. Trigger the replica.
Answer: A
Explanation:
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 # 35
You want to distribute DNS traffic to different endpoints based on the locationof the end user. Which TrafficManagement Steering Policy would you use?
- A. Geolocation
- B. Load Balancer
- C. Failover
- D. IP Prefix
Answer: A
Explanation:
Explanation
The explanation is that geolocation is a type of Traffic Management Steering Policy that allows you to distribute DNS traffic to different endpoints based on the location of the end user. Geolocation steering policies use geolocation data from third-party providers to map end user IP addresses to geographic regions.
You can create rules that specify which endpoints to serve for each region or country, or use a default endpoint for unspecified regions.
NEW QUESTION # 36
What should be created before provisioning an Oracle Cloud Infrastructure (OCI) DB System?
- A. Virtual Cloud Network
- B. Compute Instance
- C. Bucket in Object Storage
- D. Compartment
Answer: A
Explanation:
Explanation
The explanation is that a Virtual Cloud Network (VCN) is a software-defined network that you set up in OCI to connect your cloud resources, such as compute instances and databases. A VCN provides you with complete control over your network environment, including selecting your own IP address range, creating subnets, route tables, gateways, security lists, etc. You need to create a VCN before provisioning an OCI DB System, as you need to specify which subnet in your VCN you want to launch your DB System in.
NEW QUESTION # 37
Which is NOT a valid action within the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. Cloning an existing volume to a new, larger volume.
- B. Restoring from a volume backup to a larger volume.
- C. Attaching a block volume to an instance in a different availability domain.
- D. Expanding an existing volume in place with offline resizing.
Answer: C
Explanation:
Attaching a block volume to an instance in a different availability domain is not a valid action within the OCI Block Volume service. A block volume can only be attached to an instance in the same availability domain. The other options are valid actions that can be performed with the Block Volume service. Reference: [Block Volume Actions]
NEW QUESTION # 38
In which two ways can Oracle Security Zones assist with the cloud security shared responsibility model?
- A. Encrypt storage resources with a customer-managed key.
- B. Add or move a standard compartment to a highly secured security zone compartment.
- C. Deny public access to Oracle Cloud Infrastructure resources, such as databases and object storage buckets.
- D. Allow access to an unsecured compartment, which is moved from a standard compartment.
Answer: A,C
Explanation:
Oracle Security Zones is a service that helps you enforce best practices and prevent misconfigurations on your OCI resources by applying predefined policies and controls. Some of the benefits of using Security Zones are:
Encrypt storage resources with a customer-managed key: Security Zones require that all storage resources, such as block volumes, boot volumes, file systems, and object storage buckets, are encrypted with a customer-managed key from Vault. This ensures that you have full control over the encryption and decryption of your data at rest.
Deny public access to OCI resources, such as databases and object storage buckets: Security Zones prevent you from creating or updating OCI resources that have public access enabled, such as databases and object storage buckets that are accessible from the internet. This reduces the risk of unauthorized access or data leakage.
NEW QUESTION # 39
You plan to upload a large file (3 TiB) to Oracle Cloud Infrastructure (OCI) Object Storage. You would like tominimize the impact of network failures while uploading, and therefore you decide to use the multipart upload capability.
Which TWO statements are true about performing a multipart upload using the Multipart Upload API?
- A. You do not need to split the object into parts. Object Storage splits the object into parts and uploads all ofthe parts automatically.
- B. You do not have to commit the upload after you have uploaded all the object parts.
- C. When you split the object into individual parts, each part can be as large as 50 GiB.
- D. While a multipart upload is still active, you can keep adding parts as long asthe total number is less than10,000.
Answer: C,D
Explanation:
Explanation
While a multipart upload is still active, you can keep adding parts as long as the total number is less than
10,000. When you split the object into individual parts, each part can be as large as 50 GiB. The explanation is that a multipart upload allows you to upload a large object in parts, which can improve performance and reliability. You need to split the object into parts yourself and upload each part separately using the Multipart Upload API. You can add parts to an active multipart upload until you reach the maximum number of 10,000 parts per upload. Each part can range from 10 MiB to 50 GiB in size, except for the last part, which can be any size.
NEW QUESTION # 40
You are using a custom application with third-party APIs to manage the application and data hosted in an OracleCloud 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 useto ensure this?
- A. API Signing Key
- B. SSH Key Pair with 2048-bit algorithm
- C. Auth Tokens
- D. OCI Username and Password
Answer: C
Explanation:
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. References: [Auth Tokens]
NEW QUESTION # 41
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