2025年最新の1Z0-1124-24問題集PDFで1Z0-1124-24リアル試験問題解答
有効な1Z0-1124-24テスト解答とOracle 1Z0-1124-24試験PDF問題を試そう
質問 # 73
Which of the following statements is TRUE about CloudShell in OCI?
- A. It provides a pre-configured web-based IDE for developing and deploying applications.
- B. It charges for usage based on resource consumption and tenancy limits.
- C. It requires manual installation and configuration of tools and utilities.
- D. It offers persistent storage for user-specific files and configurations.
正解：D
解説：
CloudShell provides 5 GB of persistent storage in your home directory within each separate CloudShell instance you launch in different regions. This allows you to save projects, configurations, and personal files that persist across sessions within the same region, promoting continuity and avoiding the need to start from scratch each time.
Explanation of incorrect statements:
A). It provides a pre-configured web-based IDE for developing and deploying applications. While CloudShell comes with various tools and utilities out of the box, such as the OCI CLI and Ansible, it,s not primarily intended as a web-based IDE. You can integrate your own IDE or text editor into CloudShell using web-based services or local installations on your system.C. It requires manual installation and configuration of tools and utilities. CloudShell is pre-configured with essential tools and utilities, including the OCI CLI, Python, Git, and more. You can typically use these tools immediately without manual setup. However, if you need additional tools or specific versions, you might need to install them using package managers available within CloudShell.D. It charges for usage based on resource consumption and tenancy limits. CloudShell itself is free to use, but resources like compute instances or storage volumes that you create through CloudShell will incur charges based on your tenancy,s limits and pricing model. Be mindful of these costs when using CloudShell for resource-intensive tasks.
質問 # 74
Which of the following statements about route advertisement across DRGs is TRUE?
- A. You can configure filters to control which routes are advertised across DRGs, based on prefixes or other criteria.
- B. All routes learned from a DRG are automatically advertised to all other attached DRGs.
- C. DRGs automatically learn and advertise routes from attached VCNs, eliminating the need for route tables in VCNs.
- D. Route advertisement across DRGs is not possible, and each DRG must have its own set of static routes.
正解：A
解説：
A). All routes learned from a DRG are automatically advertised to all other attached DRGs: This is false. Route advertisement across DRGs is controlled and requires configuration using route filters. Advertising all routes without filtering can lead to routing loops and unintended traffic flow.C. DRGs automatically learn and advertise routes from attached VCNs, eliminating the need for route tables in VCNs: This is partly true. DRGs do import routes from attached VCNs by default, but route tables are still essential in VCNs to manage internal routing within the VCN and control what specific routes get exported to the DRG for further advertisement.D. Route advertisement across DRGs is not possible, and each DRG must have its own set of static routes: This is false. Route advertisement across DRGs is a core functionality, allowing for efficient routing between VCNs across different regions or connected networks. Static routes can be used within DRGs, but relying solely on them can be inflexible and impractical for larger-scale or dynamic network environments.
質問 # 75
Your enterprise customer''s IPv6 policy is to assign a /56 Global Unicast Address (GUA) for a Virtual Cloud Network and the subnet to be /64. How many subnets can we define using this plan?
Response:
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
質問 # 76
A company is attempting to configure transit routing through the Oracle Cloud Infrastructure (OCI) Phoenix region to resources located in the OCI Ashburn region. Currently, they have connectivity between their on-premises data center and the OCI Phoenix region using a FastConnect LAG.
What needs to happen to ensure network traffic will work bi-directionally between the on-premises data center and the OCI Ashburn region?
Response:
- A. Associate Phoenix Virtual Cloud Network (VCN) with the Phoenix Dynamic Routing Gateway (DRG) and provide a static route towards the Ashburn VCN CIDR using a newly created Remote Peering Connection. Add a static route in the Ashburn VCN to use the Phoenix VCN as its next-hop for the data center CIDR.
- B. Modify the Autogenerated Import Route Distributions for Virtual Cloud Network (VCN) attachments to remove the match criteria for ALL attachments and only include the Remote Peering Connection (RPC) and the FastConnect LAG as its match criteria.
- C. Create a cross-region Virtual Cloud Network (VCN) attachment from the Phoenix VCN to the Ashburn Dynamic Routing Gateway (DRG). Export the FastConnect attachment for the DRG Route Table used by the Remote Peering Connection (RPC). Export the RPC attachment into the DRG Route Table used by the FastConnect LAG.
- D. Create a new Remote Peering Connection between the OCI Phoenix Region and the OCI Ashburn Region. Import the FastConnect attachment for the Dynamic Routing Gateway (DRG) Route Table used by the Remote Peering Connection (RPC). Import the RPC attachment into the DRG Route Table used by the FastConnect LAG.
正解：D
質問 # 77
Which FastConnect product offers the highest bandwidth and performance?
- A. Dedicated Connection
- B. Dedicated Internet Access (DIA)
- C. Cloud VPN
- D. IPSec VPN
正解：A
解説：
Dedicated Connection: This option refers to FastConnect Dedicated Circuit.
Here,s a breakdown of why:
* Dedicated Circuit: This establishes a private, point-to-point connection directly between your network and Google,s, bypassing the public internet. This dedicated path translates to significantly higher bandwidth and significantly lower latency compared to other options that rely on shared resources.
* Dedicated Internet Access (DIA): While this offers a dedicated connection to the internet, it does not directly connect to Google,s network and still relies on public internet infrastructure, introducing potential bottlenecks and impacting performance.
* IPSec VPN and Cloud VPN: Both utilize shared VPN tunnels over the public internet, introducing potential latency and jitter due to shared resources and internet traffic conditions. Bandwidth is also limited compared to dedicated options.
質問 # 78
Your information security team has informed you of a compliance policy that prevents outbound connections to the Internet or usage of publicly accessible IP destinations. You are designing your Virtual Cloud Network (VCN) for access to Oracle''s Autonomous Data Warehouse service.
Which of the following virtual networking resources should you deploy to achieve this goal?
Response:
- A. Service Gateway
- B. Private Endpoints
- C. Network Address Translation Gateway
- D. Internet Gateway
正解：B
質問 # 79
Which OCI load balancer feature can help in distributing traffic based on specific application layer criteria like URL paths
- A. Least Connections Algorithm
- B. Content Switching
- C. Round Robin Algorithm
- D. Weight-Based Distribution
正解：B
解説：
Here,s why the other options are not suitable for this purpose:
A). Round Robin Algorithm: This distributes traffic across backend servers sequentially, regardless of specific application layer information.B. Weight-Based Distribution: This allows assigning different weights to backend servers, influencing traffic distribution but not based on URL paths.D. Least Connections Algorithm: This directs traffic to the server with the fewest active connections, aiming for balanced server load but not based on URL paths.Content Switching:
Analyzes incoming traffic at the application layer, examining factors like URL paths, cookies, or headers.
Based on predefined rules or configurations, routes traffic to specific backend servers best suited to handle the request.
This enables intelligent traffic distribution and routing based on your application,s requirements.
質問 # 80
In a multi-tier OCI architecture, which of the following is NOT a valid use case for the Bastion service?
- A. Enabling SSH connections to bastion hosts from external sources while restricting access to other resources.
- B. Providing secure access to jump hosts for managing private resources within a VCN.
- C. Offering remote access to public-facing resources like web servers directly.
- D. Implementing multi-factor authentication (MFA) for accessing bastion hosts.
正解：C
解説：
A, B, and C: These all fall within the core functionalities and intended use cases of a Bastion service:
A: Bastions are specifically designed to provide secure access to internal resources, including jump hosts, by acting as a central entry point with controlled access.
B: They allow establishing SSH connections from external sources while restricting access to other resources by enforcing policies and filtering traffic.
C: Bastion services can integrate with multi-factor authentication (MFA) for an additional layer of security when accessing them.
D: However, Bastions are not intended for directly accessing public-facing resources like web servers. These resources are typically designed to be accessible directly from the public internet. Exposing a Bastion to the public internet would defeat its purpose of securing access to internal resources and introduce unnecessary security risks.
質問 # 81
You are experiencing connectivity issues between an on-premises network and a private subnet in your OCI VCN. What information can you obtain from OCI flow logs to help diagnose the problem?
- A. Security list rules applied to the subnet and associated security groups.
- B. Detailed packet capture data for each flow.
- C. Source and destination IP addresses of all network traffic.
- D. Route table entries and next hop information for the subnet.
正解：C
解説：
Source and destination IP addresses: Knowing the IP addresses involved in communication attempts can help identify:
Whether traffic is reaching the intended target subnet or getting dropped somewhere.
If source IPs from your on-premises network are even attempting to reach the subnet.
Potential asymmetric routing issues where traffic flows differently in each direction.
While other options offer valuable information:
Detailed packet capture data (B): Flow logs generally don,t capture full packet contents, but might offer header information depending on your configuration. It,s less relevant for initial troubleshooting.
Security list rules (C): Can help identify if rules are blocking legitimate traffic, but won,t pinpoint routing or reachability issues directly.
Route table entries (D): Provide insights into routing paths, but without source and destination IP information, it,s hard to correlate them to specific traffic attempts.
質問 # 82
Which OCI load balancer feature can help in distributing traffic based on specific application layer criteria like URL paths
- A. Least Connections Algorithm
- B. Content Switching
- C. Round Robin Algorithm
- D. Weight-Based Distribution
正解：B
質問 # 83
For A/B testing different versions of a website for users in different countries. Which OCI service can help?
- A. Traffic Management Traffic Splitting
- B. Service Gateway
- C. Internet Gateway
- D. FastConnect
正解：A
解説：
A). FastConnect: This establishes a dedicated private connection between your network and OCI, not relevant for public website traffic routing and A/B testing.B. Service Gateway: This routes private traffic within your VCN, not designed for public internet traffic or website A/B testing.D. Internet Gateway: This connects your VCN to the public internet, but doesn,t offer built-in functionalities for A/B testing or traffic splitting based on user location.Traffic Management Traffic Splitting:
Allows you to route specific percentages of website traffic to different website versions based on various criteria, including user location (country in your case).
You can define different "pools" representing your test versions and configure traffic splitting percentages for each country or region.
This enables you to test and compare the performance of different website versions for users in specific geographical locations to gather valuable insights and optimize user experience.
質問 # 84
Which OCI VPN service helps if strong encryption for VPN connection to OCI is required?
- A. Cloud VPN with IPSec offers AES-256 encryption options.
- B. FastConnect with private peering uses TLS by default.
- C. IPSec VPN Connect supports only AES-128 encryption.
- D. IPsec VPN over Dedicated Circuit requires custom encryption configuration.
正解：A
解説：
Robust Encryption: Cloud VPN with IPSec offers AES-256 encryption by default, which is considered one of the most secure ciphers available. This algorithm provides 256-bit encryption keys, significantly exceeding the security of AES-128 used in other options.
Flexibility: You can further enhance security by selecting stronger hashing algorithms, such as SHA-256 or SHA-384, for authentication and integrity verification.
Wide Range of Configurations: Cloud VPN with IPSec supports both dynamic routing (BGP) and static routing, enabling you to tailor your VPN solution to your specific network requirements.
Scalability: It can be easily scaled to accommodate your growing bandwidth needs.
Cost-Effectiveness: Compared to Dedicated Circuits, Cloud VPN with IPSec often offers a more cost-effective solution.
Comparison with other options:
A). IPSec VPN Connect: While it supports IPSec, the default AES-128 encryption might not be sufficient for your strong encryption requirements.B. FastConnect with Private Peering: While offering private connectivity, it primarily uses TLS, which may not be as robust as IPSec for specific security needs.D. IPsec VPN over Dedicated Circuit: While potentially offering strong encryption depending on your configuration, it can be more complex and expensive to manage compared to Cloud VPN with IPSec.
質問 # 85
A public subnet and a private subnet share the same CIDR block. What security risk does this create?
- A. Increased latency for internet traffic.
- B. Potential routing issues within the VCN.
- C. Exposure of private resources to the public internet.
- D. Subnet resource conflicts.
正解：C
解説：
Increased latency for internet traffic (A): While overlapping CIDR blocks can have routing complexities, latency increase is not the primary security concern.
Subnet resource conflicts (B): This might occur due to overlapping address spaces, but it,s not the most critical security risk.
Potential routing issues within the VCN (C): Overlapping CIDRs can indeed create routing issues, but again, not the biggest security concern.
Exposure of private resources (D): This is the major security risk. With shared CIDR blocks, routing can become ambiguous, potentially allowing public internet traffic to inadvertently reach private resources within the VCN, compromising their security.
Why is this risky?
Any misconfiguration or security exploit could potentially expose private resources like databases or internal servers directly to the public internet.
This can lead to unauthorized access, data breaches, and other security vulnerabilities.
質問 # 86
To control which routes are advertised from your on-premises network to OCI via BGP. What BGP feature can be used?
- A. Neighbor filters
- B. Local preference attribute
- C. Route reflectors
- D. Community attributes
正解：D
解説：
Here,s why:
Granular Control: Community attributes provide a flexible way to tag and manipulate BGP routes based on various criteria like origin, purpose, or cost. You can define communities on your on-premises router to selectively advertise desired routes to OCI, filtering out others.
Policy-Based Routing: By utilizing specific communities, you can implement fine-grained routing policies. This allows you to advertise different routes to different OCI VCNs or control how OCI prioritizes incoming routes based on their associated communities.
Standards-Based: Community attributes are a standard BGP feature, ensuring compatibility with your on-premises BGP implementation and facilitating interoperability.
Comparison with other options:
Route reflectors (A): Route reflectors advertise all learned routes within a BGP confederation, not suitable for specific route control.
Local preference attribute (C): While adjusting local preference can influence route selection to some extent, it,s a less flexible and standards-compliant approach compared to community attributes.
Neighbor filters (D): Neighbor filters restrict which routes are received from a specific BGP neighbor, not ideal for controlling outgoing route advertisements.
質問 # 87
BGP peering session is operational, but traffic isn''t flowing as expected. Which action could help diagnose the issue?
- A. Increase the DRG bandwidth to handle more traffic.
- B. Enable public IP addresses on both sides of the connection.
- C. Verify and adjust BGP neighbor configuration on both sides.
- D. Restart the on-premises router and the DRG instance.
正解：C
解説：
Targeted troubleshooting: This option directly addresses the BGP peering configuration, which is the core mechanism for route exchange and traffic flow between the OCI network and your on-premises environment.
Root cause analysis: Checking and adjusting parameters like neighbor IP addresses, AS numbers, and route advertisements can help pinpoint where the configuration might be preventing traffic flow.
Minimal disruption: Compared to other options, verifying BGP configuration is generally less disruptive and doesn,t introduce unnecessary changes to the network infrastructure.
While the other options might be relevant in some situations, they are not as directly related to diagnosing the specific issue of traffic not flowing:
A). Increase DRG bandwidth: This might be a solution if the issue is bandwidth limitation, but without understanding the root cause, it could be an unnecessary expense and not address the underlying problem.B. Enable public IP addresses: Public IPs are not essential for BGP peering and might introduce security concerns. They should only be considered if specifically required for your network design and wouldn,t directly fix traffic flow issues.D. Restart router and DRG: Restarting infrastructure might temporarily resolve issues, but it doesn,t provide insights into the root cause and could be disruptive if done without proper analysis and backup procedures.
質問 # 88
Which of the following methods BEST SECURES communication between resources in separate OCI tenancies?
- A. VPN Connect tunnel with IPSec encryption
- B. Public IP addresses and direct internet connections
- C. Cross-tenancy VCN peering with full access
- D. FastConnect with private peering and Service Gateway endpoints
正解：D
解説：
A). Public IP addresses and direct internet connections: This method exposes resources to the public internet, increasing the attack surface and potential for vulnerabilities.B. VPN Connect tunnel with IPSec encryption: While more secure than direct internet connections, VPN tunnels still rely on the public internet for part of the data journey, introducing potential risks.C. FastConnect with private peering and Service Gateway endpoints: This option offers the highest level of security by:FastConnect: Creates a dedicated, private connection between your VCN and the other tenancy,s VCN, isolated from the public internet.
Private peering: Further restricts communication within the FastConnect connection to specific resources in each VCN.
Service Gateway endpoints: Provide controlled, secure access to specific resources in the other tenancy through predefined policies and managed services.
D). Cross-tenancy VCN peering with full access: While VCN peering offers secure communication, granting full access undermines the principle of least privilege and exposes more resources than necessary.
質問 # 89
To connect on-premises network to multiple Oracle Cloud VCNs in different regions. Which service provides secure, centralized connectivity?
- A. Dynamic Routing Gateway (DRG)
- B. Service Gateway
- C. Internet Gateway
- D. FastConnect
正解：A
解説：
Centrality: DRGs provide a single point of connection for all your VCNs across regions, simplifying routing and management.
Security: DRGs leverage private peering, preventing traffic from going over the public internet and enhancing security.
Scalability: DRGs can efficiently handle various traffic loads and accommodate future growth.
Flexibility: DRGs offer multiple peering options (local, remote, cross-tenancy) for diverse connectivity needs.
Comparison with other options:
Service Gateway: Primarily for managing outbound internet traffic within a VCN, not ideal for cross-region connectivity.
FastConnect: Private, dedicated connection to Oracle Cloud, but requires separate connections for each region, lacking centralization.
Internet Gateway: Provides public internet access within a VCN, not intended for secure cross-region communication.
質問 # 90
When migrating latency-sensitive applications to OCI, which connectivity option offers the HIGHEST level of performance and reliability?
- A. Dedicated Connection
- B. FastConnect Lite
- C. IPSec VPN
- D. Internet Gateway
正解：A
解説：
Here,s why:
* Internet Gateway: Relies on the public internet, resulting in unpredictable latency and potential congestion, not ideal for latency-sensitive applications.
* IPSec VPN: While offering encryption, it adds an additional layer of encapsulation and traverses the public internet, impacting performance and reliability.
* FastConnect Lite: Shares resources within the FastConnect infrastructure, potentially affecting performance during peak usage.
* Dedicated Connection: This option establishes a private, physical connection between your on-premises network and OCI, completely bypassing the public internet. This delivers:
o Lowest and most consistent latency: Minimizes network hops and avoids unpredictable internet traffic.
o Highest guaranteed bandwidth: Offers dedicated bandwidth tailored to your specific needs, ensuring stable performance.
o Enhanced reliability: Less susceptible to internet outages and congestion, improving application uptime.
質問 # 91
For a highly available VCN, which is NOT required?
- A. Multiple Availability Domains (ADs).
- B. Internet Gateways in each AD.
- C. Route tables with multiple next hops.
- D. Private subnets in each AD.
正解：B
解説：
Here,s why:
Multiple Availability Domains (ADs): Having resources spread across multiple ADs ensures that a failure in one AD won,t impact the entire VCN. This is crucial for achieving high availability.
Route tables with multiple next hops: This allows for redundancy in routing paths, ensuring traffic can flow even if one path becomes unavailable.
Private subnets in each AD: Just like public resources, private resources like app and DB servers benefit from being distributed across ADs for fault tolerance.
Internet Gateways in each AD: While having one Internet Gateway per AD can improve performance and availability for public resources in that specific AD, it,s not strictly necessary for overall VCN high availability. You can have a single Internet Gateway serving the entire VCN, and route traffic appropriately based on your needs.
質問 # 92
Which feature of Site-to-Site VPN helps IF A company requires high availability for its VPN connection to OCI
- A. Public IP addresses assigned to both sides of the VPN connection.
- B. Multiple tunnel configurations with automatic failover.
- C. Dynamic routing between the on-premises network and VCN.
- D. NAT Gateway integration for outbound traffic from the VCN.
正解：B
解説：
Here,s why:
Redundancy: By configuring multiple tunnels with automatic failover, you create redundancy in your VPN connection. If one tunnel experiences an outage, traffic seamlessly switches to the remaining operational tunnels, ensuring uninterrupted connectivity between your on-premises network and OCI VCN.
High Availability: This feature minimizes downtime and potential disruptions to your critical business operations.
Flexibility: You can configure multiple tunnels with different routing options (e.g., primary, secondary), bandwidths, and encryption settings to tailor your high availability solution to your specific needs and performance requirements.
The other options contribute to overall network functionality but don,t directly address high availability for the VPN connection:
A). Dynamic routing: Dynamic routing helps optimize communication paths but doesn,t provide automatic failover if a tunnel goes down.B. NAT Gateway integration: NAT Gateways manage outbound traffic and enhance security, but don,t offer automatic failover for VPN tunnels.D. Public IP addresses: While convenient for initial setup, public IPs alone don,t provide redundancy or automatic failover in case of tunnel issues.
質問 # 93
......
1Z0-1124-24試験問題集でPDF問題とテストエンジン：https://jp.fast2test.com/1Z0-1124-24-premium-file.html