1Z0-1085-26 Getting Started With Oci — 10 Questions

Question 1

An enterprise customer requires strict residency compliance where all data, including backups and metadata, must remain within their on-premises data center, but they still want native OCI cloud services and API parity. Which OCI deployment model should you recommend?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

OCI Cloud@Customer. OCI Dedicated Region and Exadata Cloud@Customer deliver native cloud services directly to a customer's on-premises data center. Cloud@Customer provides specific cloud services (like Exadata database and infrastructure), while Dedicated Region brings the entire public cloud region on-premises.

Answer

OCI Public Cloud Region

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OCI Dedicated Region

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OCI Multi-Cloud

Question 2

An application administrator is configuring a high-availability database cluster across three Fault Domains in a single Availability Domain. During a scheduled infrastructure maintenance event affecting Fault Domain 1, the administrator notices that one of the database nodes becomes unreachable. What is the expected behavior of OCI Fault Domains in this scenario?

Accepted Answer

Only instances in Fault Domain 1 are impacted by the maintenance, while instances in Fault Domains 2 and 3 continue to run normally without disruption.. Fault domains are isolated hardware and power groupings. Maintenance events or hardware failures impact only the specific Fault Domain being maintained, leaving other Fault Domains unaffected.

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The database cluster automatically fails over its primary role to an instance in a different Availability Domain.

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The entire Availability Domain is taken offline to synchronize the maintenance state across all Fault Domains.

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Instances in Fault Domain 1 are automatically migrated to Fault Domain 2, causing a brief network partition.

Question 3

You are deploying a mission-critical web application that must remain available even if an entire Oracle Cloud Infrastructure availability domain experiences a major outage. The application architecture requires two compute instances. How should you provision these instances to achieve high availability?

Accepted Answer

Deploy one instance in Availability Domain 1 and the other instance in Availability Domain 2.. To protect against availability domain failures, instances must be placed in separate Availability Domains within the same OCI region.

Answer

Deploy both instances in the same Availability Domain but assign them to different Fault Domains.

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Deploy both instances in separate OCI Regions using an explicit cross-region pairing gateway.

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Deploy both instances in the same Availability Domain and configure autonomous cross-AD scaling.

Question 4

Your development team needs to test an application's resilience against infrastructure hardware failures within a specific OCI region that contains only a single Availability Domain. Which OCI feature should you utilize to distribute your compute instances for fault tolerance?

Accepted Answer

Fault Domains. In regions with a single Availability Domain, Fault Domains provide the necessary high availability by logically isolating instances onto separate underlying hardware.

Answer

Dynamic Routing Gateways

Answer

Cross-Region Replication

Answer

Secondary Regions

Question 5

A multinational corporation requires low-latency access for users in Frankfurt and London, with strict data isolation ensuring European data does not leave designated jurisdictions. Which OCI architectural construct should you use to organize their resources?

Accepted Answer

OCI Regions. Regions are localized geographic areas. Deploying resources into distinct OCI regions (e.g., Germany Central (Frankfurt) and UK South (London)) meets both proximity and data isolation goals.

Answer

Compartments

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Availability Domains

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Fault Domains

Question 6

An organization is planning a disaster recovery strategy for a Tier-1 financial application. They need a Recovery Point Objective (RPO) of near-zero and a Recovery Time Objective (RTO) of seconds. Which OCI deployment pattern best fulfills these stringent requirements?

Accepted Answer

Deploy an active-active architecture across two low-latency interconnected OCI regions using synchronous replication and automated traffic management failover.. A multi-region active-active or active-passive configuration with synchronous data replication across regions provides the lowest RPO and RTO.

Answer

Deploy instances across three Fault Domains in a single Availability Domain with automated compute health checks.

Answer

Backup daily block volumes to Object Storage and restore them in a secondary region upon disaster declaration.

Answer

Deploy an active-passive architecture across two OCI regions using asynchronous database replication and manual DNS failover.

Question 7

You are designing a web application hosted in OCI. You want to ensure that if a top-of-rack switch fails inside a data center, your application remains online. How are OCI Fault Domains engineered to address this specific risk?

Accepted Answer

Fault domains are isolated racks with their own power, cooling, and network hardware, ensuring anti-affinity for instance placement.. Fault domains isolate hardware, power supplies, and top-of-rack network switches within an availability domain.

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Fault domains provide automatic geographic failover across different countries.

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Fault domains automatically replicate virtual machine memory across different availability domains.

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Each Fault Domain has its own dedicated external internet gateway to route traffic around broken switches.

Question 8

What is the primary characteristic of an Oracle Cloud Infrastructure Availability Domain?

Accepted Answer

One or more data centers located within a region, fault-isolated from each other with independent power and cooling.. Availability domains are distinct, standalone data centers within a region, featuring independent power, cooling, and network infrastructure.

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A software-defined network boundary that connects local data centers to the OCI backbone.

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A logical grouping of users and compartments for billing purposes.

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A hardware rack dedicated entirely to a single enterprise customer on-premises.

Question 9

An architect is evaluating OCI's distributed cloud offerings. A client in the healthcare sector requires an on-premises deployment that includes the complete portfolio of OCI cloud services, autonomous database capabilities, and exact API parity with the public cloud, all managed locally. Which OCI solution should be proposed?

Accepted Answer

OCI Dedicated Region. OCI Dedicated Region brings the complete set of OCI public cloud services into the customer's data center.

Answer

Oracle Autonomous Database on Dedicated Exadata Infrastructure in the Public Cloud

Answer

OCI Exadata Cloud@Customer

Answer

OCI Compute Cloud@Customer

Question 10

Which OCI architectural component provides high-speed, low-latency network connectivity between multiple Availability Domains within the same region?

Accepted Answer

A high-bandwidth, low-latency inter-AD network fabric. Availability domains within a region are connected by a high-bandwidth, low-latency network fabric.

Answer

Local Peering Gateway (LPG)

Answer

Dynamic Routing Gateway (DRG)

Answer

OCI FastConnect