LATEST 1Z0-1124-25 DUMPS FREE | NEW 1Z0-1124-25 TEST QUESTION

Latest 1z0-1124-25 Dumps Free | New 1z0-1124-25 Test Question

Latest 1z0-1124-25 Dumps Free | New 1z0-1124-25 Test Question

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Oracle 1z0-1124-25 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Troubleshoot OCI Networking and Connectivity Issues: This section of the exam measures the skills of a Cloud Operations Engineer and evaluates the ability to select appropriate OCI tools and services for troubleshooting network and connectivity problems. It also tests knowledge of using OCI logging services to diagnose and resolve configuration or performance issues effectively.
Topic 2
  • Design for Hybrid Networking Architectures: This section of the exam measures the skills of a Network Infrastructure Architect and assesses capabilities in designing hybrid networking environments. It involves demonstrating proficiency with Dynamic Routing Gateway (DRG) configurations, attachments, BGP routing protocols, VPN services, and evaluating FastConnect offerings. This section also emphasizes maintaining reliable multicloud connectivity and implementing IPSec over FastConnect, along with transitive routing practices.
Topic 3
  • Design and Deploy OCI Virtual Cloud Networks (VCN): This section of the exam measures the skills of a Cloud Network Engineer and covers the design and configuration of Virtual Cloud Networks in Oracle Cloud Infrastructure. It includes understanding VCN and subnet characteristics, implementing both IPv4 and IPv6 addressing, identifying the distinct roles of OCI gateways, and recognizing endpoint types and their application within networking architectures. Knowledge of Object Storage endpoints is also referenced.
Topic 4
  • Implement and Operate Secure OCI Networking and Connectivity Solutions: This section of the exam measures the skills of a Cloud Security Specialist and centers around securing networking configurations and interconnectivity in OCI. It involves applying IAM policies for tenancy communication, using bastion services in multi-tier setups, exploring CloudShell capabilities, and evaluating network security layers like OCI Network Firewall, Web Application Firewall (WAF), edge services, and certificates. This section also references obsolete content related to IaC and OKE in networking architectures while touching on zero-trust packet routing models.
Topic 5
  • Transitive Routing: This section of the exam measures the skills of a Network Security Engineer and focuses on the interpretation and synthesis of transitive routing configurations. It includes understanding how DRG, Local Peering Gateways (LPG), and network appliances interact in a routed network and implementing those configurations effectively.
Topic 6
  • Plan and Design OCI Networking Solutions and App Services: This section of the exam measures the skills of a Solutions Architect and focuses on planning comprehensive networking and application service strategies. It includes understanding IP management practices, choosing procedural steps for deployments, and evaluating OCI load balancers, DNS configurations, and traffic steering options. Basic familiarity with DNS Security Extensions (DNSsec) is acknowledged as a placeholder for future integration.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q35-Q40):

NEW QUESTION # 35
You are designing a solution to implement IPSec encryption over a FastConnect circuit between your on- premises network and OCI. You are concerned about the overhead of IPSec impacting themaximum MTU (Maximum Transmission Unit) size that can be supported. What is the most important factor to consider when determining the MTU size for the IPSec tunnel interfaces in this scenario?

  • A. The fragmentation settings on the DRG in OCI.
  • B. The available bandwidth of the FastConnect circuit. A larger MTU requires a higher bandwidth connection.
  • C. The MTU size of the underlying Ethernet frames used by the FastConnect circuit.
  • D. The smallest MTU supported by any device along the entire network path between your on-premises network and OCI, including the FastConnect provider's network.

Answer: D

Explanation:
* Concern:IPSec overhead reduces effective MTU.
* MTU Impact:Must avoid fragmentation, which degrades performance.
* Evaluate Factors:
* A:Bandwidth doesn't dictate MTU; incorrect.
* B:Smallest MTU in path (path MTU) prevents fragmentation; most critical.
* C:Ethernet MTU is a factor but not the limiting one; incomplete.
* D:DRG fragmentation settings are secondary to path MTU; incorrect.
* Conclusion:Path MTU is the key determinant to avoid fragmentation.
IPSec reduces MTU due to headers. The Oracle Networking Professional study guide explains, "When configuring IPSec over FastConnect, the most important factor is the smallest MTU supported along the entire path to prevent fragmentation and ensure efficient traffic flow" (OCI Networking Documentation, Section:
IPSec over FastConnect). Path MTU discovery is critical.


NEW QUESTION # 36
Which of the following is a disadvantage of using a public internet-based VPN connection for migrating large datasets from another cloud provider to OCI?

  • A. VPN connections cannot be automated using Infrastructure as Code (IaC) tools
  • B. The throughput of a VPN connection is limited by the available bandwidth and latency of the public internet
  • C. VPN connections are not compatible with all OCI services
  • D. VPN connections are inherently less secure than dedicated private connections

Answer: B

Explanation:
* Objective: Identify a VPN disadvantage for large dataset migration.
* Option A: VPNs can be secure with IPSec; not inherently less secure-incorrect.
* Option B: VPNs are automatable with IaC (e.g., Terraform)-incorrect.
* Option C: Public internet limits VPN throughput due to bandwidth and latency variability-correct disadvantage.
* Option D: VPNs are compatible with OCI services-incorrect.
* Conclusion: Option C is the key disadvantage.
Oracle notes:
* "Public internet-based VPNs face throughput limitations due to bandwidth and latency variability, impacting large data migrations."This supports Option C. Reference:VPN Limitations - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/settingupIPSec.htm#limitations).


NEW QUESTION # 37
You have successfully enabled DNSSEC on your OCI DNS zone and provided the DS record to your domain registrar. However, when you test your DNS configuration using online DNSSEC validation tools, you are still seeing errors indicating that DNSSEC validation is failing. What is the most likely reason for this failure?

  • A. The Time To Live (TTL) value for your DNS records is too low, causing validation errors.
  • B. The DNSSEC algorithm used by OCI DNS is not supported by the validation tools.
  • C. The OCI DNS resolver is not configured to validate DNSSEC signatures.
  • D. The domain registrar has not yet published the DS record in the parent zone, preventing the chain of trust from being established.

Answer: D

Explanation:
* Problem:DNSSEC validation fails post-setup.
* DNSSEC Chain:Requires DS record in parent zone for trust.
* Evaluate Causes:
* A:Low TTL affects caching, not validation; unlikely.
* B:Missing DS in parent zone breaks chain; most likely.
* C:Resolver config is client-side, not affecting external tools; incorrect.
* D:OCI uses standard algorithms; highly unlikely.
* Conclusion:Registrar delay in publishing DS is the primary cause.
DNSSEC relies on the parent zone. The Oracle Networking Professional study guide explains, "DNSSEC validation fails if the registrar hasn't published the DS record in the parent zone, as this breaks the chain of trust" (OCI Networking Documentation, Section: DNSSEC Troubleshooting). This is a common post- enablement issue.


NEW QUESTION # 38
Your organization is migrating a legacy application to OCI. This application relies on a specific IP address for its external communication, and you need to maintain this IP address during the migration. Which OCI Load Balancer feature or configuration can help you achieve this while ensuring high availability for the application?

  • A. Using a private IP address for the load balancer and NAT Gateway for outbound traffic.
  • B. Deploying multiple Flexible Load Balancers with different public IP addresses and using DNS round- robin.
  • C. Configuring the Flexible Load Balancer with a reserved public IP address.
  • D. Utilizing the Network Load Balancer (NLB) with its inherent ability to preserve client IP addresses.

Answer: C

Explanation:
* Requirement Breakdown: Maintain a specific public IP for external communication with high availability (HA).
* Option A: Private IP with NAT Gateway is for outbound traffic from private subnets, not inbound public access. It doesn't support a fixed public IP for external clients.
* Option B: Network Load Balancer (NLB) preserves client IPs (source IP) but doesn't allow reserving a specific public IP. IPs are assigned dynamically, failing the requirement.
* Option C: Flexible Load Balancer (Application Load Balancer) supports reserving a public IP, ensuring the legacy IP is maintained. It also provides HA across Availability Domains (ADs).
* Option D: Multiple load balancers with DNS round-robin don't maintain a single IP-clients see different IPs, violating the requirement.
* Conclusion: Option C meets both the specific IP and HA needs efficiently.
Per Oracle documentation:
* "The Application Load Balancer (Flexible Load Balancer) allows you to reserve a public IP address, which can be associated with the load balancer for consistent external access."
* "It provides high availability by distributing traffic across multiple backend instances."This supports Option C. Reference:Load Balancer Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content
/Balance/Concepts/balanceoverview.htm).


NEW QUESTION # 39
You are designing an OCI VCN for a new application with the following requirements: The application servers in a private subnet must be able to download software updates from public repositories on the internet; the application servers must NOT be directly accessible from the public internet; the application servers must also be able to access Oracle Cloud Infrastructure Registry (OCIR) within the same region to pull container images. Which combination of VCN Gateways BEST meets these requirements?

  • A. Internet Gateway and Service Gateway
  • B. Dynamic Routing Gateway (DRG) and Internet Gateway
  • C. NAT Gateway and Service Gateway
  • D. NAT Gateway and Internet Gateway

Answer: C

Explanation:
* Requirements: Outbound internet access, no inbound exposure, and private OCIR access.
* Option A: Internet Gateway allows inbound traffic, violating the no-exposure rule-incorrect.
* Option B: NAT Gateway enables outbound-only internet access, but Internet Gateway adds inbound exposure-incorrect.
* Option C: NAT Gateway provides outbound internet access without inbound exposure; Service Gateway enables private OCIR access-correct.
* Option D: DRG is for external networks, not internet/OCIR access; Internet Gateway exposes servers- incorrect.
* Conclusion: Option C satisfies all requirements.
Oracle states:
* "Use a NAT Gateway for outbound internet access from private subnets without inbound connectivity.
Use a Service Gateway for private access to OCI services like OCIR."This supports Option C.
Reference:NAT and Service Gateway Overview - Oracle Help Center(docs.oracle.com/en-us/iaas
/Content/Network/Tasks/NATgateway.htm & docs.oracle.com/en-us/iaas/Content/Network/Tasks
/servicegateway.htm).


NEW QUESTION # 40
......

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