Most Recent Oracle 1Z0-1124-25 Exam Dumps

Prepare for the Oracle Cloud Infrastructure 2025 Networking Professional exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Oracle 1Z0-1124-25 exam and achieve success.

The questions for 1Z0-1124-25 were last updated on Apr 30, 2025.

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Question No. 1

You have configured DNSSEC for your domain hosted on OCI DNS. You understand the importance of regularly rotating your Key Signing Key (KSK) to maintain security best practices. Which of the following statements regarding KSK rotation in OCI DNS is TRUE?

AKSK rotation is a fully automated process managed by OCI DNS and requires no manual intervention.

BYou must manually generate a new KSK and ZSK pair and upload them to OCI DNS to initiate a KSK rotation.

CKSK rotation in OCI DNS involves enabling a 'KSK Rollover' feature, which automatically handles the key rotation process while minimizing disruption to DNS resolution.

DKSK rotation is not supported in OCI DNS; you must migrate your DNS zone to another provider if you require KSK rotation.

Show Answer

Correct Answer: C

Objective: Identify the true statement about KSK rotation in OCI DNS.

Option A: OCI DNS automates much of the process but requires user initiation, not fully automated---incorrect.

Option B: OCI DNS generates keys internally; manual generation and upload aren't required---incorrect.

Option C: OCI DNS offers a ''KSK Rollover'' feature that, once enabled, automates the rotation process, ensuring minimal disruption---correct.

Option D: KSK rotation is supported via the rollover feature---incorrect.

Conclusion: Option C accurately describes OCI DNS KSK rotation.

Oracle documentation confirms:

'OCI DNS supports KSK rotation through the KSK Rollover feature. Enable it to automatically rotate keys while maintaining DNS resolution continuity.'

This validates Option C. Reference: DNSSEC in OCI DNS - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/DNS/Tasks/managingdnssec.htm).

Question No. 2

You are configuring a VCN with multiple subnets for a customer. The security team requires that all instances have IPv6 addresses. You configure the VCN with an IPv6 ULA CIDR block of fc00:1:1::/48 and create two private subnets. After launching instances in the two private subnets, you notice that they only have IPv4 addresses assigned. You have not manually configured any IPv6 addresses on the instances themselves. What steps are necessary to ensure the instances automatically receive IPv6 addresses?

ANo further steps are needed. Instances will automatically receive IPv6 addresses within the configured subnets upon launch.

BEnsure that SLAAC (Stateless Address Autoconfiguration) is enabled on the operating system of the instances within the two subnets.

CIPv6 address assignment is only supported on instances launched in public subnets.

DMake sure the 'Assign public IPv4 address' option is not selected during instance creation. This will force the instance to default to IPv6 allocation.

Show Answer

Correct Answer: B

Problem: Instances lack IPv6 addresses despite VCN IPv6 configuration.

OCI IPv6 Behavior: IPv6 requires subnet enablement and OS support via SLAAC.

Evaluate Options:

A: Incorrect. OCI doesn't auto-assign IPv6 without OS configuration.

B: Correct. SLAAC must be enabled on the instance OS for auto-assignment.

C: Incorrect. IPv6 works in both public and private subnets.

D: Incorrect. IPv4 and IPv6 assignments are independent.

Conclusion: Enabling SLAAC on the OS ensures automatic IPv6 assignment.

IPv6 in OCI relies on SLAAC for automatic address assignment. The Oracle Networking Professional study guide states, 'To enable IPv6 on instances, the VCN and subnet must have IPv6 CIDR blocks, and the instance OS must support SLAAC to automatically configure IPv6 addresses' (OCI Networking Documentation, Section: IPv6 Configuration). Without SLAAC, instances default to IPv4 only.

Question No. 3

Your company needs to connect an on-premises data center to an OCI Virtual Cloud Network (VCN) to extend their existing infrastructure to the cloud. The connection MUST be secure, reliable, and provide consistent, low-latency access to resources in both environments. Resources in the OCI VCN need access to the on-premises servers, and resources in the on-premises data center need to access the compute instances located in a private subnet within the OCI VCN. Which is the MOST appropriate architectural design for establishing connectivity in this hybrid cloud environment, considering the available endpoints and gateway options in OCI?

AImplement a Site-to-Site VPN connection between the on-premises network and the OCI VCN, utilizing a Dynamic Routing Gateway (DRG) in OCI.

BEstablish a FastConnect connection between the on-premises network and the OCI VCN, utilizing a Dynamic Routing Gateway (DRG) in OCI.

CConfigure a public endpoint for each resource in the OCI VCN that needs to be accessed from the on-premises network.

DImplement a FastConnect connection from the on-premises network to the OCI VCN utilizing a Dynamic Routing Gateway (DRG) in OCI and implement a Site-to-Site VPN connection as backup.

Show Answer

Correct Answer: D

Requirements: Secure, reliable, low-latency, bidirectional access with redundancy.

Option A: VPN via DRG is secure but lacks low latency and redundancy---insufficient.

Option B: FastConnect via DRG offers low latency and security but no redundancy---partial fit.

Option C: Public endpoints are insecure and high-latency---incorrect.

Option D: FastConnect for primary low-latency access, VPN as backup for redundancy---correct and most appropriate.

Conclusion: Option D meets all criteria.

Oracle states:

'FastConnect with DRG provides secure, low-latency hybrid connectivity. Add a Site-to-Site VPN for redundancy to ensure reliability.'

This supports Option D. Reference: Hybrid Cloud Connectivity - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Tasks/hybridcloud.htm).

Question No. 4

Your company is migrating its legacy application to OCI. This application uses self-signed certificates. As part of the migration, you want to replace these with certificates issued by a trusted Certificate Authority (CA) managed through OCI Certificates. What is the most secure and recommended method to handle this transition?

AImport the self-signed certificates into OCI Certificates and continue using them until they expire.

BImmediately replace the self-signed certificates on all application servers with certificates issued by OCI Certificates, without any gradual rollout.

CObtain certificates from OCI Certificates, gradually replace self-signed certificates on application servers, and update the truststores on client systems to include the OCI Certificates CA.

DConfigure OCI WAF to bypass certificate validation for the legacy application.

Show Answer

Correct Answer: C

Objective: Securely transition from self-signed to trusted CA certificates.

Option A: Importing self-signed certificates into OCI Certificates doesn't improve security---incorrect.

Option B: Immediate replacement risks outages if clients don't trust the new CA---unrecommended.

Option C: Gradual replacement with OCI Certificates, updating client truststores, ensures security and minimizes disruption---correct.

Option D: Bypassing validation via WAF weakens security---incorrect.

Conclusion: Option C is the most secure and recommended method.

Oracle advises:

'Replace self-signed certificates with OCI Certificates from a trusted CA. Perform a phased rollout and update client truststores to avoid disruptions.'

This validates Option C. Reference: OCI Certificates Overview - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Security/Certificates/overview.htm).

Question No. 5

When analyzing Flow Logs for a subnet, how can you filter logs to isolate traffic that was rejected due to a specific security list rule?

ABy filtering on the 'action' field with the value 'REJECT' and the 'securityListRule' field with the rule ID

BBy filtering on the 'status' field with the value 'DENIED' and the 'securityRule' field with the rule name

CBy filtering on the 'direction' field with the value 'EGRESS' and the 'port' field with the rule port

DBy filtering on the 'type' field with the value 'SECURITY' and the 'rule' field with the rule number

Show Answer

Correct Answer: A

Goal: Filter Flow Logs for traffic rejected by a specific security list rule.

Option A: ''action'' = ''REJECT'' identifies rejected traffic; ''securityListRule'' with rule ID pinpoints the exact rule---correct.

Option B: ''status'' and ''securityRule'' aren't standard Flow Log fields (''action'' and ''securityListRule'' are)---incorrect.

Option C: ''direction'' and ''port'' filter traffic but don't specify rejection or rule---incorrect.

Option D: ''type'' and ''rule'' aren't valid Flow Log fields---incorrect.

Conclusion: Option A is the precise filtering method.

Oracle states:

'In Flow Logs, use the 'action' field ('REJECT') and 'securityListRule' field (rule ID) to filter traffic rejected by a specific security list rule.''

This validates Option A. Reference: Flow Logs Fields - Oracle Help Center (docs.oracle.com/en-us/iaas/Content/Network/Concepts/flowlogs.htm#fields).

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