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1z0-1124-25 braindumps pdf, Oracle 1z0-1124-25 exam cram

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1z0-1124-25 braindumps pdf, Oracle 1z0-1124-25 exam cram

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Oracle 1z0-1124-25 Exam Syllabus Topics:
TopicDetails
Topic 1
  • 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.
Topic 2
  • OCI Networking Best Practices: This section of the exam measures the skills of a Cloud Solutions Architect and covers essential best practices for designing secure, efficient, and scalable networking solutions in OCI. It includes architectural design, connectivity setup, security hardening, and monitoring and logging standards that align with industry and Oracle-recommended guidelines.
Topic 3
  • 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 4
  • 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 5
  • 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 6
  • Migrate Workloads to OCI: This section of the exam measures the skills of a Cloud Migration Specialist and focuses on identifying the best networking connectivity strategies when migrating workloads to Oracle Cloud. It includes scenarios involving on-premises infrastructure, other cloud providers, and multicloud environments, ensuring proper connectivity and minimal downtime during transitions.

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Oracle Cloud Infrastructure 2025 Networking Professional Sample Questions (Q114-Q119):NEW QUESTION # 114
You are designing an OCI architecture where a custom application running on a compute instance in a private subnet needs to securely access an Oracle Integration Cloud (OIC) instance. The security policy mandates that all communication remains within the OCI network and avoids traversing the public internet. Which type of endpoint provides the most secure and direct connectivity for this scenario?
  • A. Private Endpoint
  • B. Public Endpoint
  • C. Service Gateway Endpoint
  • D. Regional Endpoint
Answer: A
Explanation:
* Requirementrivate, secure access to OIC from a private subnet.
* Endpoint Types:
* Public:Internet-based; violates policy.
* Service Gateway:For OCI services like Object Storage, not OIC.
* Private:VCN-internal access to services; fits OIC.
* Regional:Ambiguous, not specific; incorrect.
* Evaluate Options:
* Aublic internet; incorrect.
* B:Wrong service target; incorrect.
* Crivate within VCN; correct.
* D:Undefined scope; incorrect.
* Conclusionrivate Endpoint ensures secure connectivity.
Private Endpoints secure OIC access. The Oracle Networking Professional study guide notes, "A Private Endpoint allows applications in a private subnet to access Oracle Integration Cloud (OIC) within the OCI network, avoiding public internet exposure" (OCI Networking Documentation, Section: Private Endpoints).
This meets the security policy directly.

NEW QUESTION # 115
You are managing an OCI Network Firewall that protects a VCN with multiple subnets. The application team reports intermittent connectivity issues to a specific application server behind the firewall. You suspect the issue might be related to the firewall's stateful inspection. What would be the most efficient way to troubleshoot if the stateful inspection is causing these connectivity issues?
  • A. Recreate the Network Firewall with a completely different configuration.
  • B. Review the Network Firewall logs for denied traffic originating from or destined to the application server.
  • C. Disable stateful inspection on the entire Network Firewall to check if the connectivity is restored.
  • D. Create a Network Firewall policy with a specific rule that allows all traffic to/from the affected application server, bypassing inspection.
Answer: B
Explanation:
* Identify the Goal: Troubleshoot efficiently to determine if stateful inspection is causing intermittent connectivity issues.
* Option A Evaluation: Disabling stateful inspection globally removes all security checks, potentially restoring connectivity but disrupting the entire VCN's security. This is inefficient and risky.
* Option B Evaluation: Creating a bypass rule for the application server avoids inspection, which could confirm the issue but weakens security for that server. It's a workaround, not a diagnostic step, and requires policy changes during troubleshooting.
* Option C Evaluation: Reviewing firewall logs for denied traffic is targeted and non-disruptive. Logs show if stateful inspection is dropping packets (e.g., due to session timeouts or rule mismatches), directly identifying the cause without altering configurations.
* Option D Evaluation: Recreating the firewall is highly disruptive, time-consuming, and doesn't guarantee insight into the current issue. It's not a troubleshooting step.
* Conclusion: Option C is the most efficient, as it leverages logs for precise diagnosis without impacting operations.
Per Oracle's Network Firewall documentation:
* "Network Firewall logs provide detailed information about allowed and denied traffic, including source
/destination IPs, ports, and protocols. Use logs to troubleshoot connectivity issues by identifying dropped packets due to stateful inspection or rule mismatches."
* "Stateful inspection tracks connection states; misconfigurations can lead to dropped sessions."This confirms logs are the best tool for diagnosing stateful inspection issues. Reference:Network Firewall Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/NetworkFirewall/overview.htm).

NEW QUESTION # 116
You are troubleshooting a BGP peering issue between your on-premises router and an OCI FastConnect virtual circuit. You have verified the physical connectivity and confirmed that the BGP session is established.
However, routes are not being exchanged. You suspect a problem with the BGP configuration. What is the MOST LIKELY cause of this issue, assuming the basic BGP configuration (AS numbers, peer IP addresses) is correct?
  • A. The MTU (Maximum Transmission Unit) size is mismatched, causing fragmentation and packet loss.
  • B. There is a mismatch in the BGP authentication keys between the on-premises router and OCI.
  • C. The BGP keepalive timers are misconfigured, causing the session to drop intermittently.
  • D. The advertised prefixes are being filtered by a prefix list or route map on either the on-premises router or the OCI FastConnect virtual circuit.
Answer: D
Explanation:
* Problem Context: BGP session is established, but no routes are exchanged, and basic config (ASNs, IPs) is correct.
* Option A Analysis: Misconfigured keepalive timers would cause the session to drop intermittently.
Since the session is confirmed as established, this is unlikely. Keepalives affect session stability, not route exchange.
* Option B Analysis: A mismatch in BGP authentication keys (e.g., MD5 passwords) would prevent the session from establishing. Given the session is up, this is not the issue.
* Option C Analysis: BGP prefix lists or route maps filter advertised routes. If either the on-premises router or OCI applies a filter (intentionally or misconfigured), it could block route advertisements despite an established session. This is a common issue in BGP setups and aligns with the symptoms.
* Option D Analysis: MTU mismatches could cause packet loss or fragmentation, but BGP uses TCP (small packets), and session establishment indicates MTU isn't the primary issue. Route exchange failures are more likely due to filtering than MTU.
* Conclusion: Option C is the most likely cause, as filtering directly prevents route exchange without affecting session status.
From Oracle's FastConnect documentation:
* "Once a BGP session is established, routes are exchanged based on the prefixes advertised by each side.
Route maps, prefix lists, or filters on either the CPE or OCI side can restrict which routes are advertised or accepted."
* "If no routes appear in the routing table despite an active session, verify that no filters are blocking advertisements."This supports Option C as the most likely cause. Reference:FastConnect Overview - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/fastconnect.htm).

NEW QUESTION # 117
Your team is deploying a critical, highly available application that relies on accessing a MySQL Database Service instance within OCI. The application requires a stable and predictable endpoint for database connectivity, even during database failover events. Which endpoint configuration is most suitable to ensure seamless application connectivity in this high-availability scenario?
  • A. Using a DNS hostname that resolves to the floating private IP address of the active MySQL Database Service instance.
  • B. Using the private IP address of the primary MySQL Database Service instance directly.
  • C. Using the public IP address of the MySQL Database Service instance.
  • D. Using a Service Gateway to connect to the MySQL Database Service endpoint.
Answer: A
Explanation:
* Goal:Stable endpoint for MySQL DB with HA failover support.
* Endpoint Options:
* Public IP:Exposed, changes on failover; unsuitable.
* DNS with Floating IPersistent across failovers; ideal.
* Private IP:Tied to primary, fails on switch; incorrect.
* Service Gateway:For OCI services, not MySQL DB; incorrect.
* Evaluate Options:
* Aublic exposure, no HA; incorrect.
* B:Floating private IP with DNS ensures continuity; correct.
* C:Static IP breaks on failover; incorrect.
* D:Misaligned purpose; incorrect.
* ConclusionNS with floating IP is most suitable.
MySQL DB in OCI uses floating IPs for HA. The Oracle Networking Professional study guide explains, "A DNS hostname resolving to the floating private IP of the active MySQL Database Service instance ensures seamless connectivity during failover events" (OCI Networking Documentation, Section: MySQL Database Service HA). This provides predictability and stability.

NEW QUESTION # 118
You are using the OCI Application Load Balancer (ALB) for your web application. You want to implement a blue/green deployment strategy to minimize downtime during application updates. You have two backend sets: 'blue' (the current version) and 'green' (the new version). What is the most efficient way to switch traffic from the 'blue' backend set to the 'green' backend set using the ALB's traffic management capabilities?
  • A. Update the listener to point directly to the 'green' backend set.
  • B. Update the health check policy of the 'blue' backend set to mark all servers as unhealthy, forcing the ALB to send traffic to the 'green' backend set.
  • C. Create a new listener that points to the 'green' backend set and delete the old listener.
  • D. Use the ALB's routing rules to gradually shift traffic from the 'blue' backend set to the 'green' backend set based on a percentage weight.
Answer: D
Explanation:
* Goal:Minimize downtime in blue/green deployment with ALB.
* ALB Capabilities:Supports weighted routing for gradual traffic shifts.
* Evaluate Options:
* A:Immediate switch risks downtime if 'green' fails; less efficient.
* Bistener swap causes abrupt change; not optimal.
* C:Gradual shift with weights ensures smooth transition; most efficient.
* D:Forcing 'blue' unhealthy is disruptive and hacky; inefficient.
* Conclusion:Weighted routing provides the smoothest transition.
ALB supports blue/green via routing rules. The Oracle Networking Professional study guide states,
"Application Load Balancer's routing rules allow weighted traffic distribution between backend sets, enabling blue/green deployments with minimal downtime" (OCI Networking Documentation,Section: Load Balancer Routing). This method ensures stability during updates.

NEW QUESTION # 119
......
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