1Z0-1085-26 Practice Test 8 — 10 Questions

Question 1

A web application deployed across multiple compute instances experiences fluctuating traffic loads throughout the day. The infrastructure needs to automatically add or remove compute instances based on CPU utilization metrics. Which OCI service combination provides this capability?

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

Accepted Answer

Instance Pools combined with Compute Autoscaling. Compute Autoscaling automatically adjusts the number of compute instances in an instance pool based on performance metrics such as CPU utilization.

Answer

Container Instances combined with Object Storage lifecycle rules

Answer

Virtual Cloud Network with Dynamic Routing Gateway autoscaling

Answer

Load Balancer combined with Block Volume backups

Question 2

An administrator needs to route internet-bound traffic from private compute instances through a NAT Gateway. What route table configuration is required in the private subnet?

Accepted Answer

Destination: 0.0.0.0/0, Target: NAT Gateway. A private subnet route table must have a rule directing destination CIDR 0.0.0.0/0 to the NAT Gateway target.

Answer

Destination: 0.0.0.0/0, Target: Service Gateway

Answer

Destination: 10.0.0.0/16, Target: Internet Gateway

Answer

Destination: VCN CIDR, Target: NAT Gateway

Question 3

Which TWO statements accurately describe the characteristics of OCI Availability Domains and Fault Domains? (Choose two.)

Accepted Answer

A region can contain one or more Availability Domains.. Option C is correct because an OCI region is composed of one or more Availability Domains (ADs), which are isolated, fault-tolerant data center groupings within that region; some regions have a single AD while others have three. Option D is correct because Fault Domains (FDs) are isolated hardware and power groupings within a single Availability Domain, and OCI provides three FDs per AD to enable anti-affinity placement of instances. Option A is incorrect because Availability Domains do not span multiple global regions; they are contained within a single region, and it is regions that are geographically distributed. Option B is incorrect because Availability Domains are deliberately isolated from one another with independent power, cooling, and network infrastructure to maximize fault tolerance, not to share physical power infrastructure. Option E is incorrect because Fault Domains are physical hardware and power isolation groupings confined within one Availability Domain, not software-defined constructs that span across different ADs.

Answer

Availability domains span across multiple global regions to provide high availability.

Answer

Availability domains share physical power infrastructure to minimize data center costs.

Answer

Fault domains are software-defined constructs that exist across different availability domains.

Question 4

You are configuring an OCI Load Balancer. Which component defines the backend servers that receive traffic?

Accepted Answer

Backend Sets. Backend sets define the group of backend servers and their load balancing policy.

Answer

Certificates

Answer

Route tables

Answer

Listeners

Question 5

Which OCI service allows you to back up your on-premises data to the cloud for long-term storage?

Accepted Answer

Object Storage. Object Storage with lifecycle policies is commonly used for backup storage.

Answer

Block Volume

Answer

FastConnect

Answer

Compute Instance

Question 6

An administrator is troubleshooting a VCN where instances in a private subnet cannot reach the public internet via a NAT Gateway. The NAT Gateway is attached to the VCN, and the security list allows all outbound traffic. What is the most likely cause of the failure?

Accepted Answer

The subnet route table lacks a route rule with destination 0.0.0.0/0 pointing to the NAT Gateway.. Even with a NAT Gateway attached and security lists open, the private subnet's route table must have a route rule with destination 0.0.0.0/0 pointing to the NAT Gateway.

Answer

The NAT Gateway requires an incoming security list rule from 0.0.0.0/0.

Answer

The local OS firewall on the NAT Gateway is blocking packets.

Answer

The VCN lacks an Internet Gateway attached to the public subnets.

Question 7

Which statement best describes the geographical relationship between OCI Regions and Availability Domains?

Accepted Answer

A region is a localized geographic area that contains one or more availability domains.. Regions contain one or more availability domains, and multiple regions make up the OCI global footprint.

Answer

Regions and availability domains are completely independent and interchangeable concepts.

Answer

Each availability domain represents a separate public cloud region in a different country.

Answer

An availability domain spans across multiple global regions to provide high availability.

Question 8

What is the primary function of a Dynamic Routing Gateway (DRG) in OCI?

Accepted Answer

To provide a path for private traffic between a VCN and on-premises networks or remote VCNs. A DRG acts as a virtual router that provides a path for private traffic between your VCN and locations outside your VCN, such as on-premises networks or other VCNs.

Answer

To route public internet traffic to virtual machines

Answer

To balance HTTP traffic across backend web servers

Answer

To provide private access to regional Oracle Cloud services

Question 9

An administrator needs to configure autoscaling for a compute instance pool so that instances scale out when CPU usage exceeds 80% and scale in when CPU usage drops below 20%. Where is this autoscaling configuration applied?

Accepted Answer

On an Instance Pool. Autoscaling configurations in OCI are linked directly to an Instance Pool to automatically manage the number of instances.

Answer

On the OCI Load Balancer backend set

Answer

Directly on the VCN Route Table

Answer

Inside an individual Compute VM's operating system configuration

Question 10

You want to automate object lifecycle management in an OCI Object Storage bucket so that files older than 90 days are automatically transitioned to Archive storage. What should you configure?

Accepted Answer

Object Storage Lifecycle Rules. Object Storage Lifecycle Rules allow you to define automated actions to transition objects to different storage tiers or delete them after a specified time period.

Answer

Pre-authenticated requests

Answer

A scheduled OCI Function with a custom script

Answer

Object Versioning policies