Changed 1z0-997-22 Exam Questions

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Question 16

After performing maintenance on an Oracle Linux compute instance the system is returned to a running state You attempt to connect using SSH t to do so. You decide to create an instance console connection to troubleshoot the issue.

Which three tasks would enable you to connect to the console connection and begin troubleshooting?

Options:

Use SSH to connect to the public: IP address of the compute Instance and provide the console connection OCID as the username.

edit the Linux boot menu to enable access to console.

Use SSH to connect to the service endpoint of the console connection service

Reboot the compute instance using the Oracle Cloud Infrastructure (OCI) Management Console

Upload an API signing key for console connection authentication.

Stop the compute Instance using the Oracle cloud Infrastructure (OCI) Command Line interface (CLI).

Answer:

B, C, D

Explanation:

The Oracle Cloud Infrastructure Compute service provides console connections that enable you to remotely troubleshoot malfunctioning instances, such as:

An imported or customized image that does not complete a successful boot.

A previously working instance that stops responding.

the steps to connect to console and troubleshoot the OS Issue

1- Before you can connect to the serial console you need to create the instance console connection.

Open the navigation menu. Under Core Infrastructure, go to Compute and click Instances.

Click the instance that you're interested in.

Under Resources, click Console Connections.

Click Create Console Connection.

Upload the public key (.pub) portion for the SSH key. You can browse to a public key file on your computer or paste your public key into the text box.

Click Create Console Connection.

When the console connection has been created and is available, the status changes to ACTIVE.

2- Connecting to the Serial Console

you can connect to the serial console by using a Secure Shell (SSH) connection to the service endpoint

of the console connection service

Open the navigation menu. Under Core Infrastructure, go to Compute and click Instances.

Click the instance that you're interested in.

Under Resources, click Console Connections.

Click the Actions icon (three dots), and then click Copy Serial Console Connection for Linux/Mac.

Paste the connection string copied from the previous step to a terminal window on a Mac OS X or Linux system, and then press Enter to connect to the console.

If you are not using the default SSH key or ssh-agent, you can modify the serial console connection string to include the identity file flag, -i , to specify the SSH key to use. You must specify this for both the SSH

connection and the SSH ProxyCommand, as shown in the following line:

ssh -i // -o ProxyCommand='ssh -i // -W %h:%p -p 443...

Press Enter again to activate the console.

3- Troubleshooting Instances from Instance Console Connections

To boot into maintenance mode

Reboot the instance from the Console.

When the reboot process starts, switch back to the terminal window, and you see Console messages start to appear in the window. As soon as you see the GRUB boot menu appear, use the up/down arrow

key to stop the automatic boot process, enabling you to use the boot menu.

In the boot menu, highlight the top item in the menu, and type e to edit the boot entry.

In edit mode, use the down arrow key to scroll down through the entries until you reach the line that starts with either linuxefi for instances running Oracle Autonomous Linux 7.x or Oracle Linux 7.x,

or kernel for instances running Oracle Linux 6.x.

At the end of that line, add the following:

init=/bin/bash

Reboot the instance from the terminal window by entering the keyboard shortcut CTRL+X.

Question 17

You work for a German company as the Lead Oracle Cloud Infrastructure architect. You have designed a highly scalable architecture for your company's business critical application which uses the Load Balancer service auto which uses the Load Balancer service, autoscaling configuration for the application servers and a 2 Node VM Oracle RAC database. During the peak utilization period of the- application yon notice that the application is running slow and customers are complaining. This is resulting in support tickets being created for API timeouts and negative sentiment from the customer base.

What are two possible reasons for this application slowness?

Options:

Autoscaling configuration for the application servers didn't happen due to IAM policy that's blocking access to the application server compartment

The Load Balancer configuration is not sending traffic to the listener of the application servers.

Autoscaling configuration for the application servers didn't happen due to compartment quota breach of the VM shapes used by the application servers.

Autoscaling configuration for the application servers didn't happen due to service limit breach of the VM shapes used by the application servers

The Load Balancer doesn't have a Network Security Group to allow traffic to the application servers.

Question 18

Your customer has gone through a recent reorganization. As part of this change, they are organizing their Oracle Cloud Infrastructure (OCI) compartment structure to align with the company's new organizational structure. (Refer to the exhibit)

They have made the following change:

Compartment A is moved, and its new parent compartment is compartment Dev.

Policy defined in compartment A: Allow group G1 to manage instance-family in compartment A

Policy defined in root compartment: Allow group admins to manage instance-family in compartment Ops: Test: A

After the compartment move, which action will provide users of group G1 and admins with similar privileges as before the move?

Options:

Define the following policy in compartment Dev:

Allow group G1 to manage instance-family in compartment A

Define the following policies in compartment Dev:

Allow group G1 to manage instance-family in compartment A

Allow group admins to manage instance-family in compartment Ops: Dev: A

Define the following policy in compartment: Dev:

Allow group admins to manage instance-family in compartment Ops: Dev: A

Mo change in any policy statement is required as all the policies associated with a compartment being moved is automatically updated

Question 19

A retailer bank is currently hosting their mission critical customer application on-premises. The application has a standard 3 tier architecture -4 application servers process the incoming traffic and store application data in an Oracle Exadata Database Server. The bank has recently has service disruption to other inter applications to they are looking to avoid this issue for their mission critical Customer Application.

Which Oracle Cloud Infrastructure services should you recommend as part of the DR solution?

Options:

OCI DNS Service' Public Load Balancer, Oracle Database Cloud Backup Service, Object Storage Service, Oracle Bare Metal Cloud Service, Oracle Bare Metal Cloud Service with GoldenGate, OCI Container Engines for Kubernetes, Oracle IPSec VPN

OCI Traffic Management, Private Load Balancer, Compute instances distributed across multiple Availability Domains and/or Fault Domains, Exadata Cloud Service with Data Guard, Oracle FastConnect, Object Storage, Database Cloud backup module

OCI Traffic Management, Public toad Balancer, Compute Instances distributed across multiple Availability Domains and/or Vault domains. Exadata Cloud Service with Data Guard, Oracle FastConnect, Object Storage, Database cloud backup module

OCI DNS Service, Load Balancer as a service using Public Load Balancer distributing traffic Compute Instance across multiple regions, Oracle RAC Database using Virtual Machines, Remote Peering connecting two VCNs in different regions. Exadata Cloud Service with GoldenGate FastConnect, Object Storage, Database Cloud backup module.