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Oracle 1Z0-1072-25 Exam Syllabus Topics:
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NEW QUESTION # 16
How many capacity reservations would you create to meet the requirement for high availability and distribution across Availability Domains?
- A. Three
- B. Two
- C. One
- D. Four
Answer: A
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 # 17
Which authentication option should you use to ensure third-party APIs communicate with OCI resources?
- A. API Signing Key
- B. Auth Tokens
- C. OCI Username and Password
- D. SSH Key Pair with 2048-bit algorithm
Answer: A
Explanation:
When ensuring that third-party APIs communicate securely with OCI resources, the appropriate authentication option is API Signing Key.
API Signing Key: This method uses an RSA key pair to authenticate and sign API requests. The API signing key provides a secure and reliable way to ensure that the API requests to OCI are coming from an authorized source. It is commonly used for programmatic access to OCI services.
Other Options:
SSH Key Pair: Primarily used for secure shell access to compute instances, not for API authentication.
Auth Tokens: Typically used for authentication in environments where APIs don't support the API Signing Key, such as OCI CLI or SDKs.
OCI Username and Password: Generally used for the Console login, not for securing API communications.
Relevant OCI Documentation:
API Signing Key Authentication
This documentation provides details on using API Signing Keys for secure API communication in OCI.
NEW QUESTION # 18
By default, OCI IAM policies follow the principle of least privilege. What does this principle mean in the context of policy creation?
- A. Policies should provide only the minimum set of permissions required for users to perform their tasks effectively.
- B. Policies should be written in a complex and technical manner to enhance security.
- C. Policies should grant all possible permissions to simplify access control.
- D. Policies should be identical for all users within a tenancy.
Answer: A
Explanation:
The principle of least privilege is a security best practice that dictates that users should only be granted the minimum set of permissions necessary to perform their tasks. This principle helps to minimize the risk of accidental or malicious actions that could compromise security.
IAM Policies in OCI: When creating IAM policies in OCI, you should carefully evaluate the required permissions and only grant those that are absolutely necessary for the users or groups to perform their specific roles. This helps to reduce the attack surface and prevent unauthorized access to sensitive resources.
Reference:
Oracle Cloud Infrastructure Documentation: Identity and Access Management (IAM) Best Practices
NEW QUESTION # 19
Which statement accurately describes the key features and benefits of OCI Confidential Computing?
- A. It encrypts and isolates in-use data and the applications processing that data.
- B. It optimizes network performance through advanced routing algorithms.
- C. It provides automatic scalability and load balancing capabilities.
- D. It enables users to securely store and retrieve data by using distributed file systems.
Answer: A
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 # 20
Which TWO statements about the Oracle Cloud Infrastructure (OCI) File Storage Service are accurate?
- A. Communication with file systems in a mount target is encrypted via HTTPS.
- B. File systems use Oracle-managed keys by default.
- C. Customers can encrypt the communication to a mount target via export options.
- D. Customers can encrypt data in their file system using their own Vault encryption key.
Answer: B,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 # 21
How can OCI IAM be configured to facilitate cross-region access?
- A. The administrator can grant users permissions to access specific resources in the other region.
- B. Identity domain replication must be enabled.
- C. Users can access resources in all regions by default.
- D. The identity domain automatically replicates to the other region.
Answer: A
Explanation:
In Oracle Cloud Infrastructure (OCI), cross-region access is facilitated by configuring IAM policies that grant users or groups permissions to access resources in other regions. IAM policies in OCI are global, meaning they apply across all regions by default. However, an administrator can specifically configure these policies to allow or restrict access to resources in different regions.
Example: An administrator can write a policy that allows a user to manage compute instances in a specific region by including the region's name in the policy statement.
Reference:
Oracle Cloud Infrastructure Documentation: IAM Policies
NEW QUESTION # 22
Why is the Network Visualizer tool valuable for managing virtual network infrastructure on OCI?
- A. It provides detailed information about the physical network components.
- B. It generates automated reports on network performance metrics.
- C. It visualizes the topology of all VCNS in a selected region and tenancy.
- D. It offers real-time monitoring of network traffic.
Answer: C
Explanation:
The Network Visualizer tool in Oracle Cloud Infrastructure is valuable because it visualizes the topology of all Virtual Cloud Networks (VCNs) in a selected region and tenancy.
Topology Visualization: The Network Visualizer provides a graphical representation of the network components and their relationships within a VCN, including subnets, route tables, gateways, and security lists. This visualization helps users understand the network architecture and troubleshoot issues effectively.
Other Options:
Real-time monitoring of network traffic (B), detailed information about physical network components (C), and automated reports on network performance metrics (D) are not the primary functions of the Network Visualizer. These functionalities are typically handled by other OCI services or tools.
Relevant OCI Documentation:
Network Visualizer Overview
This documentation details the features and benefits of the Network Visualizer tool in OCI.
NEW QUESTION # 23
Which is NOT a valid action within the Oracle Cloud Infrastructure (OCI) Block Volume service?
- A. Restoring from a volume backup to a larger volume.
- B. Expanding an existing volume in place with offline resizing.
- C. Cloning an existing volume to a new, larger volume.
- D. Attaching a block volume to an instance in a different availability domain.
Answer: D
Explanation:
In Oracle Cloud Infrastructure (OCI), block volumes are designed to be highly flexible and can be used in various ways:
A . Restoring from a volume backup to a larger volume: This is supported and allows for resizing during the restoration process.
B . Cloning an existing volume to a new, larger volume: You can clone a block volume and specify a larger size for the new volume.
C . Expanding an existing volume in place with offline resizing: OCI allows you to increase the size of an existing block volume without needing to take it offline.
Option D is NOT valid because block volumes can only be attached to compute instances within the same availability domain. Cross-availability domain attachment of block volumes is not supported directly.
Reference:
Oracle Cloud Infrastructure Documentation: Block Volume Overview
NEW QUESTION # 24
What is the primary purpose of the Web Application Acceleration service offered by Oracle Cloud Infrastructure (OCI)?
- A. Encrypting HTTP traffic
- B. Improving the reliability of layer 7 HTTP load balancers
- C. Monitoring and analyzing HTTP traffic patterns
- D. Speeding up traffic on layer 7 HTTP load balancers
Answer: D
Explanation:
The primary purpose of the Web Application Acceleration service offered by Oracle Cloud Infrastructure (OCI) is to speed up traffic on layer 7 HTTP load balancers. This service optimizes the delivery of web applications by reducing latency and improving response times, making it ideal for enhancing user experience on web applications.
Functionality: The service utilizes caching, compression, and other acceleration techniques to ensure that HTTP/S traffic is delivered efficiently.
Reference:
Oracle Cloud Infrastructure Documentation: Web Application Acceleration
NEW QUESTION # 25
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 delegated to OCI DNS via FastConnect partners.
- C. Domains can be delegated to OCI DNS from the Domain Registrar's self-service portal.
- D. Domains can be self-delegated to OCI DNS from its own service portal.
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 # 26
Which components are required for establishing remote peering between two Virtual Cloud Networks (VCNs) in Oracle Cloud Infrastructure (OCI)?
- A. A single VCN with nonoverlapping CIDRS in each region, a dynamic routing gateway (DRG) attached to each VCN, and a direct connection between the DRGS.
- B. Two VCNs with overlapping CIDRS in different regions, a virtual private network (VPN) gateway attached to each VCN, and a direct connection between the VPN gateways.
- C. Two VCNs with nonoverlapping CIDRS in the same region, a dynamic routing gateway (DRG) attached to each VCN, and a direct connection between the DRGs.
- D. Two VCNs with nonoverlapping CIDRS in different regions, a dynamic routing gateway (DRG) attached to each VCN, a remote peering connection (RPC) on each DRG, and a connection established between the RPCs.
Answer: D
Explanation:
Remote peering in Oracle Cloud Infrastructure allows two VCNs in different regions to communicate securely. To establish remote peering, the following components are required:
Two VCNs with Nonoverlapping CIDRs:
The CIDR blocks of the two VCNs must not overlap. This is crucial to avoid routing conflicts and ensure that traffic is correctly routed between the VCNs.
Dynamic Routing Gateway (DRG) Attached to Each VCN:
A DRG is a virtual router that provides a path for traffic between the VCN and networks outside the VCN, such as other VCNs via remote peering, on-premises networks, or other cloud services. Each VCN needs its own DRG.
Remote Peering Connection (RPC):
An RPC is a specialized connection on the DRG used specifically for remote peering. You need to create an RPC on each DRG associated with the VCNs you wish to peer.
Connection Between RPCs:
Finally, a connection must be established between the RPCs of the two DRGs. This connection facilitates the secure and private exchange of traffic between the VCNs over Oracle's backbone network.
Incorrect Options:
Option A involves a single VCN, which does not fulfill the requirement of remote peering between two VCNs.
Option B involves overlapping CIDRs and VPN gateways, which are incorrect for remote peering.
Option C suggests peering within the same region, which would be considered local peering rather than remote peering.
Relevant OCI Documentation:
OCI Remote VCN Peering
Dynamic Routing Gateway (DRG) Overview
These resources provide a detailed guide on configuring remote peering in OCI, ensuring secure and effective communication between VCNs across regions.
NEW QUESTION # 27
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. Use in-transit encryption.
- C. Create a burstable instance.
- D. Create a shielded instance.
Answer: D
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 # 28
Which statement is true about instance configurations and instance pools in OCI?
- A. An instance pool can have multiple instance configurations associated with it.
- B. You can delete an instance configuration if it is associated with an instance pool.
- C. You can only delete an instance configuration if it is not associated with any instance pool.
- D. You cannot reuse the same instance configuration for multiple instance pools.
Answer: C
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 # 29
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. A private IP can have an optional public IP assigned to it if it resides in a public subnet.
- C. Each VNIC can only have one private IP address.
- D. By default, the primary VNIC of an instance in a subnet has one primary private IP address.
Answer: B,D
Explanation:
In Oracle Cloud Infrastructure (OCI), understanding how private IP addresses work is crucial for configuring network interfaces and managing instances within your Virtual Cloud Network (VCN).
Primary VNIC and Private IP Address:
When an instance is launched in OCI, it is attached to a Virtual Network Interface Card (VNIC). The primary VNIC, which is automatically created during the instance launch, is associated with a primary private IP address by default. This private IP address is essential for the instance to communicate within the VCN. The primary private IP address is automatically assigned and cannot be removed from the primary VNIC while the instance is running. This supports the statement C.
Additional Private IPs:
Contrary to statement B, each VNIC can indeed have multiple private IP addresses, but by default, the primary VNIC comes with only one primary private IP. You can manually add secondary private IPs if needed. However, the additional IPs are not assigned by default; hence, A is incorrect.
Public IP Association:
For instances requiring internet access, a public IP address can be optionally assigned to the private IP address if the instance is in a public subnet. This is critical for scenarios where an instance needs to communicate with the internet or external networks. This aligns with statement D.
Relevant OCI Documentation:
Oracle Cloud Infrastructure Networking Overview
VNICs and Private IPs
These references provide additional context and detail on how private IP addresses work within OCI and clarify the correct statements.
NEW QUESTION # 30
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 new Object Storage bucket in another region and configure recycle policy to move data every 5 days.
- B. Create a replication policy to send data to a different bucket in another OCI region.
- 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: B
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 # 31
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