1Z0-1072-26 Practice Test 16 — 15 Questions

Question 1

You are managing an instance pool and want to ensure that instances are distributed evenly across multiple Availability Domains (ADs) in a multi-AD region to maximize high availability. How should you configure the instance pool placement?

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

Accepted Answer

Select multiple Availability Domains in the instance pool placement configuration.. When creating an instance pool in a multi-AD region, you can specify multiple availability domains in the placement configuration, and OCI will distribute the instances across them.

Answer

Configure VCN route tables to load balance traffic across ADs.

Answer

Create separate instance pools for each AD and manually scale them.

Answer

Set the fault domain count to 10.

Question 2

Your OKE cluster has a node pool running in a private subnet. A developer needs to troubleshoot a running node via SSH, but direct external SSH access is disabled. What is the recommended secure way to access the node?

Accepted Answer

Use the OCI Bastion service or a bastion host in a public subnet to tunnel SSH traffic to the private worker node.. For private OKE worker nodes, you can access them by deploying a bastion host (or using OCI Bastion service) in a public subnet and tunneling your SSH connection through the bastion host to the private IP of the worker node.

Answer

Temporarily attach a public IP address to the worker node and connect via SSH.

Answer

Modify the VCN security list to allow inbound SSH from 0.0.0.0/0 to the private subnet.

Answer

Run `kubectl exec` with privileged mode to gain root access to the underlying node's operating system.

Question 3

You want to create a custom gold image of a Linux compute instance containing specific security configurations and pre-installed agents. Which OCI feature should you use?

Accepted Answer

Custom Image. Custom images allow you to capture the boot volume of an existing compute instance to deploy new instances with identical configurations.

Answer

Block Volume Backup

Answer

Boot Volume Clone

Answer

Instance Configuration

Question 4

You are managing an OKE cluster and need to restrict network traffic so that pods in Namespace A cannot communicate with pods in Namespace B. What Kubernetes object should you configure?

Accepted Answer

Kubernetes Network Policies. Kubernetes NetworkPolicies allow you to define rules controlling network traffic flow between pods and namespaces based on labels and selectors.

Answer

Kubernetes Horizontal Pod Autoscalers

Answer

OCI VCN Security Lists

Answer

OCI API Gateway Access Rules

Question 5

Which database edition is required when provisioning an Oracle Base Database System if you want to use advanced features like Oracle Multitenant (up to 3 PDBs without extra cost), Data Guard, and In-Memory?

Accepted Answer

Enterprise Edition (EE). Enterprise Edition (EE) or Enterprise Edition High Performance / Extreme Performance is required for advanced Oracle database features.

Answer

Personal Edition

Answer

Standard Edition 2 (SE2)

Answer

Express Edition (XE)

Question 6

When provisioning an Autonomous Database, what parameter determines the initial compute and storage capacity allocated to the database, which can be scaled independently later?

Accepted Answer

OCPU count and Storage size in Terabytes. Autonomous Database compute is measured in OCPUs (Oracle CPUs), and storage is measured in terabytes (TB).

Answer

Block volume IOPS and Throughput MB/s

Answer

Number of database threads and PGA memory limits

Answer

RAM size in Gigabytes and CPU core clock speed

Question 7

You are managing a Kubernetes cluster on OCI (OKE) and need to upgrade the Kubernetes control plane version. What happens to the existing worker nodes when you perform a control plane upgrade?

Accepted Answer

Worker nodes continue to run workloads, but you must manually or via node pool upgrades bring them to the matching version.. When you upgrade the control plane in OKE, the worker nodes continue running workloads normally, but they should eventually be upgraded to remain within supported version skew limits.

Answer

The cluster becomes completely inaccessible, and all pods are evicted permanently.

Answer

Control plane upgrades are blocked until all worker nodes are upgraded first.

Answer

All worker nodes are automatically terminated and recreated with the new version.

Question 8

You have created an instance configuration from a running compute instance. You now want to use this instance configuration to create an instance pool. Which parameter must you specify during the creation of the instance pool?

Accepted Answer

The placement (subnets and availability domains/fault domains) and the number of instances. When creating an instance pool from an instance configuration, you must specify the target availability domains or fault domains and the subnet(s) where the instances will be deployed, along with the desired number of instances.

Answer

The custom OS username and SSH password

Answer

The external DNS provider settings

Answer

The new root password for the boot volumes

Question 9

You are managing an Oracle Base Database System (Virtual Machine) and need to scale up the compute shape to a higher number of OCPUs to handle an upcoming month-end processing spike. Which action should you perform?

Accepted Answer

Edit the DB system configuration in the OCI Console and update the OCPU count or shape directly.. For Oracle Base Database Systems, you can scale up the compute shape by modifying the OCPU core count or shape directly from the OCI Console without losing data.

Answer

Terminate the current DB system and provision a new one with the larger shape, then restore from a manual backup.

Answer

Stop the database instance via SQL*Plus and run the 'alter system modify shape' command.

Answer

Attach an additional block storage volume with higher performance tiers to absorb the extra compute load.

Question 10

A DBA needs to configure automatic backups for an Oracle Base Database Service instance. Which retention period range is natively supported for automated backups?

Accepted Answer

7 days to 60 days. Oracle Base Database Service supports automated backup retention periods ranging from 7 days to 60 days.

Answer

30 days to 365 days

Answer

1 day to 14 days

Answer

1 hour to 24 hours

Question 11

You need to migrate a 10 TB Oracle Database from an on-premises data center to OCI Base Database Service with minimal downtime. Which migration tool leverages Oracle Data Guard to achieve near-zero downtime?

Accepted Answer

Oracle Zero Downtime Migration (ZDM) with physical migration method. Oracle Zero Downtime Migration (ZDM) automates database migrations using Data Guard for physical migrations with minimal downtime.

Answer

SQL Developer database copy wizard

Answer

Oracle Data Pump export and import

Answer

OCI Object Storage manual file copy using multipart uploads

Question 12

Which type of Oracle Cloud Infrastructure Database service provides full access to Oracle Database features and root access to the underlying database operating system, while OCI manages the physical hardware and hypervisor?

Accepted Answer

Base Database. Base Database Systems (DB Systems) provide full SYS/SYSTEM database privileges as well as root access to the VM or Bare Metal server OS.

Answer

Autonomous JSON Database

Answer

Autonomous Database

Answer

NoSQL Database

Question 13

Which of the following describes an OCI user group?

Accepted Answer

A collection of users who can be assigned IAM policies to govern access to OCI resources.. An OCI group is a collection of users who share the same access requirements and policies.

Answer

A network security group used to filter traffic between subnets.

Answer

A collection of compute instances grouped for auto-scaling.

Answer

A collection of compartments sharing a common budget.

Question 14

An administrator needs to grant read-only access to all Object Storage buckets within a specific compartment named 'DataLake'. Which policy statement accomplishes this?

Accepted Answer

Allow group DataReaders to read object-family in compartment DataLake. Object Storage buckets and objects are managed using the 'object-family' resource type in OCI IAM policies.

Answer

Allow group DataReaders to use buckets in compartment DataLake

Answer

Allow group DataReaders to inspect storage in tenancy

Answer

Allow group DataReaders to manage files in compartment DataLake

Question 15

Which THREE resource types are included under the 'compute-instance-family' or 'instance-family' in OCI IAM policies? (Choose three.)

Accepted Answer

Compute instances. The 'instance-family' resource type encompasses compute instances, boot volumes, and associated volume attachments.

Answer

Virtual Cloud Networks

Answer

Autonomous Databases