Free Oracle 1z0-1124-25 Practice Exam with Questions & Answers | Set: 2

Requirement: IAM permission to accept cross-tenancy LPG peering.

Option A: “Manage” allows creating and accepting peering—correct.

Option B: “Use” permits using existing LPGs, not accepting requests—incorrect.

Option C: “Inspect” is read-only, insufficient—incorrect.

Option D: “Read” on virtual-network-family doesn’t cover LPG management—incorrect.

Conclusion: Option A is required.

Oracle states:

"To accept a cross-tenancy peering request, the target tenancy needs ‘manage local-peering-gateways’ permission."This confirms Option A. Reference:Local VCN Peering - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/localVCNpeering.htm).

Requirement:Restrict inter-subnet communication unless permitted.

Options Analysis:

A:Removing default route breaks all routing, overly restrictive; incorrect.

B:Separate VCNs are excessive, complex; less practical.

C:NSGs provide granular, explicit control; optimal approach.

D:External firewall adds complexity, not VCN-native; inefficient.

NSG Advantage:Instance-level rules enforce policy within VCN.

Conclusion:NSGs are the most appropriate solution.

NSGs enable precise security within a VCN. The Oracle Networking Professional study guide states, "Network Security Groups (NSGs) allow you to define strict ingress and egress rules for instances, ensuring inter-subnet communication is explicitly permitted as per security policies" (OCI Networking Documentation, Section: Network Security Groups). This is more efficient than VCN separation or external firewalls.

Goal: Ensure OCI-Azure traffic during BGP disruption.

Option A: Static routes bypass BGP dependency, maintaining connectivity—correct.

Option B: Disabling BGP stops routing—incorrect.

Option C: Notification doesn’t ensure connectivity—incorrect.

Option D: Keepalive timers delay detection, not prevent disruption—incorrect.

Conclusion: Option A is most critical.

Oracle notes:

"For uninterrupted OCI-Azure Interconnect traffic during BGP maintenance, configure static routes between VCNs and VNets."This supports Option A. Reference:OCI-Azure Interconnect - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/ociazureinterconnect.htm).

Goal: Lowest latency, highest bandwidth for AWS-to-OCI migration.

Option A: IPSec VPN over public internet has variable latency and limited bandwidth—incorrect.

Option B: Third-party cloud exchange with Direct Connect and FastConnect offers a private, dedicated link, minimizing latency and maximizing bandwidth—correct.

Option C: Storage Gateway over internet is slow and not dedicated—incorrect.

Option D: Transit Gateway with VPN uses public internet, lacking performance—incorrect.

Conclusion: Option B provides the best performance.

Oracle documentation notes:

"A third-party cloud exchange provider can interconnect AWS Direct Connect and OCI FastConnect, delivering a private, high-bandwidth, low-latency connection."This validates Option B. Reference:Multicloud Connectivity - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Concepts/multicloud.htm).

Goal:Minimize maintenance of Bastion session configurations.

Bastion Options:

Individual Sessions:High maintenance per instance.

Dynamic Port Forwarding:Flexible but user-managed, prone to errors.

Centralized Service:Predefined targets, low maintenance.

Separate Hosts:Increases complexity and overhead.

Evaluate Options:

A:Per-instance sessions require constant updates; inefficient.

B:SOCKS5 shifts burden to users; moderate maintenance.

C:Centralized with managed sessions reduces effort; optimal.

D:Multiple hosts multiply management tasks; worst option.

Conclusion:Centralized Bastion with managed sessions is most efficient.

OCI Bastion service supports centralized management. The Oracle Networking Professional study guide notes, "A centralized Bastion service with managed sessions and predefined target configurations minimizes administrative overhead by streamlining access to private subnet resources" (OCI Networking Documentation, Section: Bastion Service). This approach leverages OCI’s automation capabilities.

Problem: OKE pods can’t resolve private DB IP despite VCN DNS working.

Option A: CoreDNS in OKE must forward to VCN’s resolver for private IPs; misconfiguration is a common issue—correct.

Option B: Security lists block traffic, not resolution; VCN DNS isn’t hosted on the DB—incorrect.

Option C: Public endpoint affects API access, not internal DNS—incorrect.

Option D: Route tables don’t control DNS resolution—incorrect.

Conclusion: Option A is the most probable cause.

Oracle notes:

"CoreDNS in OKE must be configured to forward queries to the VCN’s DNS resolver (.169 address) for private IP resolution."This supports Option A. Reference:OKE DNS Configuration - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/ContEng/Tasks/contengdns.htm).

Goal:Automate certificate renewal in OCI Certificates.

Feature Check:OCI Certificates supports automatic renewal.

Evaluate Options:

A:Manual renewal risks disruption; inefficient.

B:Automatic Renewal with DNS validation automates process; best fit.

C:Vault stores secrets, no renewal automation; incorrect.

D:False; OCI Certificates has auto-renewal; incorrect.

Conclusion:Automatic Renewal is the optimal feature.

OCI Certificates offers automated renewal. The Oracle Networking Professional study guide states, "Enable the 'Automatic Renewal' option in OCI Certificates and configure DNS validation to ensure certificates are renewed before expiration, preventing disruptions" (OCI Networking Documentation, Section: OCI Certificates). This leverages OCI’s built-in automation.

Requirements: HA and redundancy for on-premises-to-OCI connectivity.

Option A: Single FastConnect lacks redundancy—incorrect.

Option B: Single VPN over internet has no redundancy and poor performance—incorrect.

Option C: Dual FastConnect with diverse paths ensures HA and redundancy via separate routes—correct.

Option D: Internet Gateway with public IPs isn’t dedicated or redundant—incorrect.

Conclusion: Option C is the recommended approach.

Oracle advises:

"For high availability, use dual FastConnect connections with diverse paths to eliminate single points of failure in hybrid connectivity."This supports Option C. Reference:FastConnect High Availability - Oracle Help Center(docs.oracle.com/en-us/iaas/Content/Network/Tasks/fastconnect.htm#ha).

Zero Trust Context:Assumes no inherent trust, requiring explicit controls at all network stages.

Evaluate Principles:

Implicit Trust:Assumes trust, opposite of Zero Trust; incorrect.

Least Privilege:Grants minimal access, explicitly enforced; aligns with Zero Trust.

Perimeter Security:Relies on boundary protection, not Zero Trust; incorrect.

Network Segmentation:Isolates networks, a tactic not a principle; incomplete.

Conclusion:Least Privilege is the core principle for explicit access control.

Zero Trust Packet Routing in OCI emphasizes Least Privilege. The Oracle Networking Professional study guide states, "The Least Privilege principle in Zero Trust requires that access controls be explicitly defined and enforced at every network communication stage, ensuring no implicit trust" (OCI Networking Documentation, Section: Zero Trust Networking). This drives granular security policies.

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).