1Z0-1085-26 Practice Test 6 — 10 Questions

Question 1

What is the primary function of an OCI NAT Gateway?

Accepted Answer

To allow outbound internet access from private subnets without incoming internet access. A NAT Gateway enables instances in a private subnet to initiate outbound connections to the internet while preventing inbound connections from the internet.

Answer

To route private traffic to on-premises data centers

Answer

To provide private access to regional Oracle services

Answer

To allow bidirectional internet access for public instances

Question 2

How do you improve the performance of a block volume attached to a compute instance?

Accepted Answer

Change volume performance tier. Changing the performance tier of a block volume (e.g., to Higher Performance) increases IOPS and throughput.

Answer

Add more RAM to instance

Answer

Increase subnets

Answer

Switch to a different VCN

Question 3

A database administrator must establish a high-throughput, highly reliable hybrid connection between an on-premises data center and OCI. The connection must bypass the public internet and guarantee steady throughput with SLA-backed performance. Which networking service combination meets these criteria?

Accepted Answer

OCI FastConnect connected to a Dynamic Routing Gateway (DRG). OCI FastConnect provides a dedicated, private physical connection between on-premises and OCI, bypassing the public internet, and when paired with a Dynamic Routing Gateway (DRG), it enables dynamic routing and high-throughput, SLA-backed hybrid connectivity. This combination meets the requirements for reliability and steady throughput.

Answer

Service Gateway connected to an IPSec VPN

Answer

IPSec VPN connected to an Internet Gateway

Answer

Local Peering Gateway connected to a NAT Gateway

Question 4

You are configuring an OCI Load Balancer and need to distribute traffic based on the URL path (e.g., /api vs /web). Which feature should you configure?

Accepted Answer

Path-based Routing. Path-based routing in the Load Balancer allows traffic direction based on URL paths.

Answer

Round Robin Policy

Answer

SSL Termination

Answer

Health Checks

Question 5

Which OCI compute feature allows you to run virtual machines on dedicated physical servers allocated exclusively to your organization?

Accepted Answer

Dedicated Virtual Machine Hosts. Dedicated Virtual Machine Hosts in OCI allow you to run virtual machines on dedicated physical servers allocated exclusively to your organization, providing isolation and control over the host. This is ideal for compliance, licensing, or security requirements that mandate dedicated hardware. It is the OCI feature specifically designed for this purpose.

Answer

OCI Container Instances

Answer

Preemptible Instances

Answer

Standard Flexible VM Shapes

Question 6

Which OCI Object Storage tier is optimized for storing active data that requires fast and frequent access with lowest latency?

Accepted Answer

Standard Storage. Standard storage tier is the default tier for hot data that is accessed frequently.

Answer

Archive Storage

Answer

Infrequent Access Storage

Answer

Backup Storage Tier

Question 7

An administrator needs to create a custom DNS domain name resolution for instances within an OCI VCN so they can resolve hostnames to internal IP addresses. Which OCI DNS feature should be configured?

Accepted Answer

Private DNS Zones. Private DNS Zones in OCI are designed to provide name resolution for internal resources within a VCN, allowing instances to resolve custom hostnames to private IP addresses. They are scoped to one or more VCNs and are not publicly resolvable, ensuring internal DNS queries stay within the virtual cloud network. This is the correct service for custom internal DNS resolution, as opposed to public DNS zones which are for internet-facing domains.

Answer

Virtual Circuit DNS resolver

Answer

Internet Gateway DNS forwarding

Answer

Public DNS Zones

Question 8

A web application experiencing fluctuating traffic needs a compute solution that automatically scales out the number of virtual machine instances based on CPU utilization. Which combination of OCI services should be configured?

Accepted Answer

Instance Pools and Autoscaling Configurations. OCI Instance Pools combined with Autoscaling Configurations provide automatic horizontal scaling of VM instances based on metrics like CPU utilization. The Instance Pool manages a group of identical instances, and the autoscaling configuration defines policies (threshold-based or schedule-based) to scale the pool in or out.

Answer

Container Instances and OKE

Answer

Compute Instances and Load Balancer

Answer

Bare Metal Instances and NAT Gateway

Question 9

An administrator needs to create a flexible OCI compute virtual machine instance. Which parameters are required when selecting a flexible compute shape?

Accepted Answer

Number of OCPUs and amount of memory (RAM). Flexible compute shapes require specifying the number of OCPUs and the amount of memory (RAM) independently.

Answer

Physical socket count and hypervisor version

Answer

Only the fixed instance shape family name

Answer

Network bandwidth allocation and disk spindle speed

Question 10

You want to organize your OCI resources so that all networking components belong to one administrative boundary, security tools belong to another, and application workloads belong to a third. Which OCI entity is specifically designed to isolate resources for administrative and security delegation?

Accepted Answer

Compartments. Compartments are logical partitions within a tenancy used to organize and isolate OCI resources.

Answer

Virtual Cloud Networks

Answer

Identity Domains

Answer

Availability Domains