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Oracle 1Z0-1072-25 Exam Syllabus Topics:
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NEW QUESTION # 31
Which statement accurately describes ephemeral principals?
- A. Ephemeral principals are user accounts with limited lifespans.
- B. Ephemeral principals are another term for dynamic groups.
- C. Ephemeral principals are temporary credentials granted to resources.
- D. Ephemeral principals represent long-lived service accounts.
Answer: C
Explanation:
Ephemeral principals in Oracle Cloud Infrastructure (OCI) refer to temporary security credentials granted to resources, such as compute instances, to enable them to interact with OCI services securely. These credentials have a limited lifespan and are typically used in situations where resources need to authenticate temporarily without the need for long-lived credentials.
Use Case: Ephemeral principals are often used for instance principals, allowing compute instances to make API calls without the need to manage long-term keys or credentials.
Reference:
Oracle Cloud Infrastructure Documentation: Using Instance Principals
NEW QUESTION # 32
Which OCI feature should be used to ensure that communication between database servers and OCI Object Storage is secure?
- A. Use a Local Peering Gateway
- B. Use a NAT Gateway
- C. Use a Service Gateway
- D. Use a VPN Gateway
Answer: C
Explanation:
To ensure secure communication between database servers and OCI Object Storage, you should use a Service Gateway. A Service Gateway enables instances in your VCN to privately access OCI services like Object Storage without traversing the public internet.
Security: The traffic between your database servers and Object Storage remains within the Oracle network, providing a secure and high-performance connection.
Reference:
Oracle Cloud Infrastructure Documentation: Service Gateway Overview
NEW QUESTION # 33
Which statement is TRUE about restoring a volume from a block volume backup in the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. You can restore a volume from any full volume backup but not from an incremental backup.
- B. You can restore a block volume backup to a larger volume size.
- C. You can restore only one volume from a manual block volume backup.
- D. You can only restore a volume to the same availability domain in which the original block volume resides.
Answer: B
Explanation:
Restoring a block volume from a backup in OCI provides flexibility and options for scaling and recovery:
Restoring to a Larger Volume Size: When restoring a block volume from a backup, you have the option to restore it to a volume that is larger than the original. This is particularly useful if you anticipate needing more storage capacity after the restore.
Full and Incremental Backups: OCI supports both full and incremental backups. You can restore from any backup type, which makes it possible to restore data efficiently depending on the backup strategy used.
Multiple Restores: Multiple volumes can be restored from a single backup, providing flexibility in disaster recovery scenarios.
Availability Domain: The restored volume can be created in any availability domain within the same region, not necessarily the same one where the original volume was located.
Relevant OCI Documentation:
Block Volume Service Overview
Restoring a Block Volume
These references explain the process and options available for restoring block volumes from backups.
NEW QUESTION # 34
Which TWO statements about the Oracle Cloud Infrastructure (OCI) File Storage Service are accurate?
- A. Customers can encrypt data in their file system using their own Vault encryption key.
- B. Customers can encrypt the communication to a mount target via export options.
- C. Communication with file systems in a mount target is encrypted via HTTPS.
- D. File systems use Oracle-managed keys by default.
Answer: A,D
Explanation:
Oracle Cloud Infrastructure (OCI) File Storage Service offers robust encryption capabilities to ensure data security.
B . Customer-Managed Encryption: Customers can choose to encrypt their data using their own keys stored in the OCI Vault service. This gives customers control over their encryption keys and enhances data security.
D . Oracle-Managed Encryption: By default, all data stored in OCI File Storage is encrypted using Oracle-managed keys. This ensures that data is encrypted at rest without requiring any action from the customer.
Incorrect Statements:
A . Communication is not encrypted via HTTPS when accessing file systems; instead, encryption in transit is typically managed via NFS over TLS.
C . Encryption of communication to a mount target is handled via network configurations, not through export options.
Reference:
Oracle Cloud Infrastructure Documentation: File Storage Encryption
NEW QUESTION # 35
Which statement is true about instance configurations and instance pools in OCI?
- A. You can delete an instance configuration if it is associated with an instance pool.
- B. An instance pool can have multiple instance configurations associated with it.
- C. You cannot reuse the same instance configuration for multiple instance pools.
- D. You can only delete an instance configuration if it is not associated with any instance pool.
Answer: D
NEW QUESTION # 36
Which image option allows you to create identical instances with minimal effort?
- A. Use Oracle-provided images
- B. Bring your own image
- C. Select an image from the OCI Marketplace
- D. Create a custom image
Answer: D
Explanation:
When you need to create identical instances with minimal effort, creating a custom image is the best option.
Custom Images: A custom image captures the exact configuration of an instance, including the OS, software, configurations, and data. By using a custom image, you can easily replicate the same setup across multiple instances, ensuring consistency and reducing the need for manual configuration each time.
Other Options:
Bring Your Own Image: This allows you to import your custom OS image into OCI, but it's more suited for cases where you are migrating from another environment.
Select an Image from the OCI Marketplace: This provides pre-configured images from Oracle or third parties, but they may require additional setup to match your specific requirements.
Use Oracle-Provided Images: These are basic images provided by Oracle, which may not include the specific customizations you need.
Relevant OCI Documentation:
Custom Images Overview
This resource explains how to create and use custom images for quickly deploying identical instances.
NEW QUESTION # 37
What happens to the performance level of a volume when it is detached from an instance?
- A. The performance level remains unchanged.
- B. The performance level is adjusted to Higher Performance.
- C. The performance level is adjusted to Lower Cost (0 VPUs/GB).
- D. The performance level is adjusted to Balanced.
Answer: C
Explanation:
In Oracle Cloud Infrastructure (OCI), when a block volume is detached from an instance, its performance level is automatically adjusted to the "Lower Cost" tier, which provides 0 VPUs (Volume Performance Units) per GB. This adjustment helps reduce costs when the block volume is not actively being used by a compute instance.
Key Points:
Volume Performance Levels: OCI offers various performance tiers for block volumes, including "Higher Performance," "Balanced," and "Lower Cost." These tiers determine the level of IOPS (Input/Output Operations Per Second) and throughput available to the volume.
Automatic Adjustment: When a block volume is detached from an instance, OCI automatically optimizes the cost by switching the volume to the "Lower Cost" performance tier. This tier offers minimal performance, suitable for data that is not actively accessed.
Cost Management: This automatic adjustment is beneficial for managing costs, as it prevents users from incurring unnecessary charges for higher performance levels when the volume is not in use.
Reference:
Oracle Cloud Infrastructure Documentation: Block Volume Performance Levels
NEW QUESTION # 38
Which OCI service would you use to apply kernel security updates to all instances?
- A. Data Safe
- B. Artifact Registry
- C. Container Registry
- D. OS Management Service
Answer: D
Explanation:
The OS Management Service in Oracle Cloud Infrastructure (OCI) is designed to manage and maintain the operating systems of your compute instances. This service allows you to apply kernel security updates, manage package installations, and monitor the status of updates across all instances in your environment.
Kernel Security Updates: With OS Management Service, you can automate and schedule kernel updates, ensuring that all instances are up-to-date with the latest security patches. This helps maintain the security and integrity of your infrastructure without needing to manually update each instance.
Other Options:
Container Registry: Used for storing and managing container images, not for applying OS updates.
Data Safe: A service focused on database security, not applicable for OS-level updates.
Artifact Registry: A repository for storing and managing software artifacts, not related to OS management.
Relevant OCI Documentation:
OS Management Service Overview
This documentation provides details on how to use OS Management Service to handle kernel security updates and other OS-level management tasks.
NEW QUESTION # 39
Which TWO options will accomplish a fully redundant connection from an on-premises data center to a Virtual Cloud Network (VCN) in the us-ashburn-1 region?
- A. Configure one FastConnect virtual circuit to the us-ashburn-1 region and a Site-to-Site VPN to the us-ashburn-1 region.
- B. Configure one FastConnect virtual circuit to the us-ashburn-1 region and the second FastConnect virtual circuit to the us-phoenix-1 region.
- C. Configure two FastConnect virtual circuits to the us-ashburn-1 region and terminate them in diverse hardware on-premises.
- D. Configure a Site-to-Site VPN from a single on-premises CPE.
Answer: A,C
Explanation:
For a fully redundant connection from an on-premises data center to a VCN in the OCI us-ashburn-1 region, it is important to ensure high availability and fault tolerance. Here's how each option contributes to redundancy:
Option B: Two FastConnect Virtual Circuits:
FastConnect provides a dedicated, private connection with higher bandwidth and more consistent performance compared to a VPN. To achieve redundancy, you can configure two FastConnect circuits in the same region (us-ashburn-1), each terminated on diverse hardware on-premises. This setup ensures that even if one circuit or its associated hardware fails, the other circuit can maintain the connection. This ensures no single point of failure in the connectivity to OCI. Thus, option B is correct.
Option D: FastConnect and Site-to-Site VPN:
Another approach to redundancy is to have a mix of connection types. By setting up one FastConnect circuit and one Site-to-Site VPN, both terminating in the same region (us-ashburn-1), you create a diverse connection path. If the FastConnect connection fails, traffic can automatically route through the VPN connection, maintaining connectivity. This setup adds an extra layer of redundancy, making option D correct as well.
Incorrect Options:
Option A: Only configuring a Site-to-Site VPN from a single on-premises CPE does not provide redundancy because it involves just one connection path. If that connection or the CPE fails, there would be no fallback.
Option C: Configuring FastConnect circuits to different regions (us-ashburn-1 and us-phoenix-1) does not provide redundancy within a single region but rather across regions, which is not required for regional redundancy.
Relevant OCI Documentation:
OCI FastConnect Overview
Using Site-to-Site VPN and FastConnect for Redundancy
These references offer more detailed information on setting up redundant connections and the benefits of each connection type within OCI.
NEW QUESTION # 40
A financial firm is designing an application architecture for its online trading platform that should have high availability and fault tolerance. What should the architect do to avoid any costly service disruptions and ensure data durability?
- A. Create a replication policy to send data to a different bucket in another OCI region.
- B. Create a new Object Storage bucket in another region and configure recycle policy to move data every 5 days.
- C. Copy the Object Storage bucket to a block volume.
- D. Create a lifecycle policy to regularly send data from the Standard to Archive storage.
Answer: A
Explanation:
For an online trading platform requiring high availability and fault tolerance, it's critical to ensure data durability and avoid any costly service disruptions. In Oracle Cloud Infrastructure (OCI), Object Storage is often used to store critical data, such as transaction logs or user data, due to its scalability, durability, and reliability.
Option B is the most suitable approach for ensuring data durability and availability across regions. Here's why:
Cross-Region Replication (CRR): OCI offers a feature called Cross-Region Replication for Object Storage. This feature allows you to automatically and asynchronously replicate objects in a bucket from one OCI region to another. This setup ensures that even if one region experiences a failure, the data is still available in another region, thereby meeting the requirements for high availability and fault tolerance.
Data Durability: By replicating data to another region, you protect against regional outages. OCI guarantees 99.95% availability for replicated data, which is critical for a financial firm's trading platform where data consistency and durability are paramount.
Disaster Recovery: With data replicated in another region, the trading platform can quickly switch to using the data in the secondary region in case of a disaster in the primary region. This setup significantly reduces recovery time objectives (RTO) and ensures business continuity.
Reference:
Oracle Cloud Infrastructure Documentation: Cross-Region Replication for Object Storage Oracle Whitepaper: High Availability and Disaster Recovery in Oracle Cloud Infrastructure Explanation of Incorrect Options:
Option A: Creating a new Object Storage bucket in another region and configuring a recycle policy to move data every 5 days does not provide real-time data availability or the fault tolerance required for a financial application. Recycle policies are intended for managing the lifecycle of data, not for high availability or disaster recovery.
Option C: While lifecycle policies are useful for moving less frequently accessed data to a more cost-effective storage tier (e.g., from Standard to Archive), they do not address cross-region redundancy or real-time availability, which are critical for this use case.
Option D: Copying an Object Storage bucket to a block volume is not a recommended practice for ensuring data durability and fault tolerance. Block volumes are used for persistent storage attached to compute instances, and copying object storage data to block volumes does not achieve the same level of redundancy and cross-region availability as replication policies.
Thus, Option B is the correct and most efficient method for ensuring high availability and fault tolerance in this scenario.
NEW QUESTION # 41
Which statement is TRUE about delegating an existing domain to the Oracle Cloud Infrastructure (OCI) DNS service?
- A. All domains can be retrieved to OCI DNS via DYN.
- B. Domains can be self-delegated to OCI DNS from its own service portal.
- C. Domains can be delegated to OCI DNS from the Domain Registrar's self-service portal.
- D. Domains can be delegated to OCI DNS via FastConnect partners.
Answer: C
Explanation:
To delegate a domain to the Oracle Cloud Infrastructure (OCI) DNS service, the domain needs to be pointed to OCI's DNS servers. This can be done through the Domain Registrar's self-service portal, where you update the name servers for your domain to OCI's DNS servers.
Process: You typically log into the domain registrar where your domain is registered and replace the existing name servers with the name servers provided by OCI DNS. Once this is done, DNS queries for your domain will be directed to OCI DNS.
Reference:
Oracle Cloud Infrastructure Documentation: Managing DNS Zones
NEW QUESTION # 42
How many capacity reservations would you create to meet the requirement for high availability and distribution across Availability Domains?
- A. Two
- B. Three
- C. Four
- D. One
Answer: B
Explanation:
In Oracle Cloud Infrastructure (OCI), to ensure high availability and distribution across Availability Domains (ADs), the recommended approach is as follows:
Capacity Reservations for High Availability: To achieve high availability, especially across all three Availability Domains in a region, you should create three capacity reservations. Each reservation corresponds to one AD, ensuring that your instances or resources are evenly distributed and resilient to AD-level failures.
Why Three: This setup provides redundancy and load distribution across the ADs, meeting the high availability requirements.
Relevant OCI Documentation:
Capacity Reservations
This document outlines how to create and manage capacity reservations to meet high availability and fault tolerance requirements.
NEW QUESTION # 43
Why was SSH still possible after port 22 was removed from the Security Lists?
- A. The VNIC of that compute instance is attached to a Network Security Group (NSG).
- B. The VCN where that compute instance resides still has an Internet Gateway.
- C. The VNIC of that compute instance is attached to a Cluster Network.
- D. The VCN where that compute instance resides still has a route rule.
Answer: A
Explanation:
Even after removing port 22 from the Security Lists, SSH was still possible because the Virtual Network Interface Card (VNIC) of the compute instance is attached to a Network Security Group (NSG).
NSGs: NSGs provide a more flexible and granular way to manage security rules compared to Security Lists. They allow you to apply security rules directly to VNICs associated with resources such as compute instances. If an NSG allows traffic on port 22, SSH will still be possible, regardless of the Security List settings.
Reference:
Oracle Cloud Infrastructure Documentation: Security Lists and Network Security Groups
NEW QUESTION # 44
Why is the OCI Inter-Region Latency dashboard useful for optimizing data transfer and backup strategies?
- A. It focuses solely on latency within your own tenancy.
- B. It provides real-time data specific to your tenancy's workloads.
- C. It's designed for troubleshooting latency issues within your specific applications.
- D. It offers a current and historical view of latency snapshots.
Answer: D
Explanation:
The OCI Inter-Region Latency dashboard is useful for optimizing data transfer and backup strategies because it provides both current and historical views of latency snapshots between OCI regions. This information helps you understand the network performance between regions over time, allowing you to optimize the placement of resources and data transfer operations.
Optimization Use: By analyzing latency data, you can make informed decisions on where to store backups and how to efficiently transfer data across regions, potentially reducing costs and improving performance.
Reference:
Oracle Cloud Infrastructure Documentation: Inter-Region Latency Dashboard
NEW QUESTION # 45
Which statement is true about instance configurations and instance pools in OCI?
- A. You can delete an instance configuration if it is associated with an instance pool.
- B. An instance pool can have multiple instance configurations associated with it.
- C. You cannot reuse the same instance configuration for multiple instance pools.
- D. You can only delete an instance configuration if it is not associated with any instance pool.
Answer: D
Explanation:
Instance configurations and instance pools are used in OCI to manage groups of instances collectively:
Deleting Instance Configurations: An instance configuration cannot be deleted if it is currently associated with an instance pool. You must first disassociate or delete the instance pool before you can delete the instance configuration.
Reusing Instance Configurations: You can reuse the same instance configuration for multiple instance pools, which allows you to deploy identical groups of instances in different contexts.
Instance Pools: A single instance pool can only be associated with one instance configuration, ensuring uniformity across the instances in the pool.
Relevant OCI Documentation:
Instance Configuration Overview
Instance Pools Overview
These references explain how to manage instance configurations and pools, including the rules for deletion.
NEW QUESTION # 46
You want to protect your VM instance from low-level threats, such as rootkits and bootkits. What should you do?
- A. Use Vulnerability Scanning Service.
- B. Create a shielded instance.
- C. Create a burstable instance.
- D. Use in-transit encryption.
Answer: B
Explanation:
To protect your VM instance from low-level threats, such as rootkits and bootkits, you should create a shielded instance in Oracle Cloud Infrastructure (OCI). Shielded instances are designed to provide enhanced security features, including:
Secure Boot: Ensures that the instance boots only with trusted software.
Measured Boot: Records boot metrics, allowing verification that the instance has not been tampered with.
Trusted Platform Module (TPM): Provides additional security through cryptographic functions.
These features help protect against low-level threats that could compromise the integrity of the instance at boot time.
Reference:
Oracle Cloud Infrastructure Documentation: Shielded Instances
NEW QUESTION # 47
Which IAM Identity Domain type should you create for a full-featured Identity-as-a-Service (IDaaS) solution?
- A. External User
- B. Free
- C. Oracle Apps Premium
- D. Premium
Answer: D
Explanation:
In Oracle Cloud Infrastructure (OCI), when you need a full-featured Identity-as-a-Service (IDaaS) solution, the appropriate Identity Domain type to create is Premium.
Premium Identity Domain: This option provides a comprehensive set of identity and access management (IAM) capabilities, including advanced security features, identity governance, and support for enterprise-grade integrations. It supports managing user identities, multifactor authentication, and various other identity services required for a robust IDaaS solution.
Other Options:
External User: This is a limited domain type typically used for managing users who only need access to specific external services.
Free: This domain type offers limited features and is not intended for full-featured enterprise IAM requirements.
Oracle Apps Premium: This is tailored for integrating with Oracle applications but does not offer the broad capabilities of the Premium option.
Relevant OCI Documentation:
Oracle Identity Domains Overview
This documentation explains the various identity domain types and their use cases within OCI.
NEW QUESTION # 48
Which of the following is a valid RFC 1918 CIDR prefix that can be used for creating an Oracle Cloud Infrastructure (OCI) Virtual Cloud Network (VCN)?
- A. 0.0.0.0/0
- B. 192.268.0.0/24
- C. 192.168.0.0/16
- D. 10.0.0.0/8
Answer: C,D
Explanation:
RFC 1918 defines IP address ranges that are reserved for private networks, which cannot be routed on the public internet. In Oracle Cloud Infrastructure (OCI), these private IP address ranges can be used to create Virtual Cloud Networks (VCNs). The valid RFC 1918 CIDR prefixes include:
192.168.0.0/16: A private IP range often used in home networks.
10.0.0.0/8: A large private IP range commonly used in enterprise networks.
Invalid Options:
B . 0.0.0.0/0: This CIDR represents all IP addresses and is not a valid private IP range.
C . 192.268.0.0/24: This is not a valid IP address range as the octet "268" is outside the allowable range of 0-255.
Reference:
Oracle Cloud Infrastructure Documentation: VCN Overview
RFC 1918: Address Allocation for Private Internets
NEW QUESTION # 49
Which statement accurately describes the key features and benefits of OCI Confidential Computing?
- A. It optimizes network performance through advanced routing algorithms.
- B. It provides automatic scalability and load balancing capabilities.
- C. It encrypts and isolates in-use data and the applications processing that data.
- D. It enables users to securely store and retrieve data by using distributed file systems.
Answer: C
Explanation:
OCI Confidential Computing is a security feature designed to protect data in use. This is particularly important for sensitive workloads where data must be secured not only when at rest or in transit but also while being processed.
Encrypts and Isolates In-Use Data: OCI Confidential Computing ensures that data and the applications processing it are isolated from the underlying infrastructure. This means that even if the infrastructure is compromised, the in-use data remains secure. The technology typically leverages secure enclaves or other hardware-based isolation mechanisms to achieve this.
Other Options:
Optimizing Network Performance (A), Automatic Scalability and Load Balancing (B), and Secure Data Storage (D) are important features, but they are not related to the core capabilities of Confidential Computing, which focuses on in-use data protection.
Relevant OCI Documentation:
OCI Confidential Computing Overview
This documentation provides a detailed explanation of how OCI Confidential Computing works and its benefits for securing sensitive data during processing.
NEW QUESTION # 50
How would you allow access to FSS for a DB System with read-only permissions?
- A. Create an instance principal for the DB System.
- B. Modify the security list to allow stateless ingress rules.
- C. Create an NFS export option that allows READ_ONLY access.
- D. Modify the security list to allow stateful ingress rules.
Answer: C
Explanation:
To allow access to Oracle Cloud Infrastructure (OCI) File Storage Service (FSS) for a Database (DB) System with read-only permissions, you should create an NFS export option that specifies READ_ONLY access.
NFS Export Options: These options define the access permissions (read/write or read-only) for clients connecting to the file system. By setting the export option to READ_ONLY, you ensure that the DB System can only read from the FSS and cannot modify or delete files.
Reference:
Oracle Cloud Infrastructure Documentation: File Storage Service Export Options
NEW QUESTION # 51
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.
- B. Each part can be as large as 50 GIB.
- C. You do not have to commit the upload after uploading all parts.
- D. You can keep adding parts as long as the total number is less than 10,000.
Answer: B,D
Explanation:
When performing a multipart upload using the Multipart Upload API in Oracle Cloud Infrastructure (OCI) Object Storage, the following points are true:
C . Each part can be as large as 50 GiB: OCI allows each part of a multipart upload to be up to 50 GiB in size. This enables the efficient uploading of large objects in smaller, manageable parts.
D . You can keep adding parts as long as the total number is less than 10,000: The Multipart Upload API supports up to 10,000 parts for a single object. This allows the upload of very large objects by dividing them into multiple parts.
Incorrect Statements:
A . After uploading all parts, you must commit the upload to finalize the multipart upload and combine all parts into a single object.
B . The object must be split into parts before uploading when using the Multipart Upload API.
Reference:
Oracle Cloud Infrastructure Documentation: Multipart Uploads
NEW QUESTION # 52
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