1Z0-1085-26 Core Oci Services Practice Test 16 — 15 Questions

Question 1

To ensure high availability for your web application, you should deploy your instances across:

Accepted Answer

Different Availability Domains. Deploying across different availability domains (ADs) or fault domains (FDs) is best practice for HA.

Answer

A single VCN

Answer

The same subnet

Answer

A single Fault Domain

Question 2

What is the default behavior of a Security List in OCI?

Accepted Answer

Stateful. Security Lists are stateful by default, meaning return traffic for allowed requests is automatically permitted.

Answer

Always allow all

Answer

Stateless

Answer

Always deny all

Question 3

Which OCI service provides a managed Domain Name System (DNS) to manage your domain records?

Accepted Answer

DNS Service. OCI DNS service manages public and private DNS zones.

Answer

Load Balancer

Answer

FastConnect

Answer

Object Storage

Question 4

You need to restrict access to a specific compute instance based on the application it is running, without affecting other instances in the same subnet. Which security feature should you use?

Accepted Answer

Network Security Groups. Network Security Groups (NSG) allow fine-grained security at the VNIC level.

Answer

Dynamic Routing Gateway

Answer

Route Tables

Answer

Security Lists

Question 5

When creating a block volume backup, where is the data stored?

Accepted Answer

Object Storage. Block volume backups are stored in OCI Object Storage.

Answer

File Storage

Answer

The same volume

Answer

Local SSD

Question 6

You need to ensure that Object Storage data is automatically moved to Archive Storage after 90 days to save costs. How can you achieve this?

Accepted Answer

Lifecycle Management Policy. Object Storage Lifecycle Policies automate the movement of objects between tiers based on age.

Answer

Pre-authenticated requests

Answer

Manual script

Answer

Version Control

Question 7

Which of the following is a benefit of OCI Bare Metal instances?

Accepted Answer

Full hardware isolation. Bare metal instances provide full hardware performance without hypervisor interference.

Answer

Automatic scaling

Answer

Shared hypervisor

Answer

Lower cost than VMs

Question 8

Which OCI service is used to host containerized applications and manage clusters?

Accepted Answer

Container Engine for Kubernetes. Oracle Container Engine for Kubernetes (OKE) is the service for container orchestration.

Answer

Compute Instances

Answer

Database Service

Answer

Functions

Question 9

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 10

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 11

You need to allow traffic from an on-premises site to a VCN using a VPN. What component is required in the VCN to act as the endpoint?

Accepted Answer

Dynamic Routing Gateway. A Dynamic Routing Gateway (DRG) is the required gateway for VPN connections.

Answer

Service Gateway

Answer

NAT Gateway

Answer

Internet Gateway

Question 12

If an instance in a public subnet cannot reach the internet, what is the first thing you should check?

Accepted Answer

Route table rules. Route tables must have a rule directing traffic to the Internet Gateway.

Answer

Security List ingress rules

Answer

Instance CPU usage

Answer

Object Storage policy

Question 13

Which OCI feature allows you to attach a single block volume to multiple instances simultaneously?

Accepted Answer

Multi-attach. Block Volume 'multi-attach' allows read/write access from multiple instances.

Answer

Dynamic Routing Gateway

Answer

Object Storage

Answer

File Storage

Question 14

What happens to an Ephemeral Public IP when you stop a compute instance?

Accepted Answer

It is released. Ephemeral public IPs are released when the instance is stopped or terminated.

Answer

It is assigned to a new instance

Answer

It remains assigned

Answer

It changes to a private IP

Question 15

How does OCI ensure that high-availability requirements are met within a single region?

Accepted Answer

Availability Domains. Availability Domains (ADs) and Fault Domains (FDs) provide physical isolation.

Answer

Multiple VCNs

Answer

Multiple Load Balancers

Answer

Global clusters