Task 6: Create Load Balancer and Attach Certificate
Create a Load Balancer with the name PBT-CERT-LB-01 in subnet LB-Subnet-PBT-CERT-SNET-02 Create a Listener for the load balancer, where:
Name: PBT-CERT-LB_LTSN_01
Protocol: HTTPS
Port: 443
Attach the certificate PBT-CERT-01-<username> to the load balancer
Attach the security list PBT-CERT-LB-SL-01 to subnet LB-Subnet-PBT-CERT-SNET-02 See the solution below in Explanation.

Task 6: Create Load Balancer and Attach Certificate
Step 1: Create the Load Balancer
* Log in to the OCI Console.
* Navigate toNetworking>Load Balancers.
* ClickCreate Load Balancer.
* Enter the following details:
* Name: PBT-CERT-LB-01
* Compartment: Select your assigned compartment.
* Load Balancer Type: SelectPublic.
* Virtual Cloud Network: Select PBT-CERT-VCN-01.
* Subnet: Select LB-Subnet-PBT-CERT-SNET-02.
* Shape: Choose a shape (e.g., 10 Mbps, adjust based on needs).
* ClickNext.
* Leave backend sets and listeners as default for now (we'll configure the listener next).
* ClickCreate Load Balancerand wait for it to be provisioned.
Step 2: Create a Listener
* Once the load balancer is created, go to theLoad Balancerspage and click on PBT-CERT-LB-01.
* UnderResources, clickListeners.
* ClickCreate Listener.
* Enter the following details:
* Name: PBT-CERT-LB_LTSN_01
* Protocol: SelectHTTPS.
* Port: Enter 443.
* Certificate: ClickAdd Certificate, then select the PBT-CERT-01<username> certificate (e.g., PBT-CERT-0199008677labuser01) created in Task 5.
* Leave other settings (e.g., SSL handling) as default unless specified.
* ClickCreate.
Step 3: Configure the Backend Set
* In the PBT-CERT-LB-01 details page, underResources, clickBackend Sets.
* ClickCreate Backend Set(if not already created).
* Enter basic details (e.g., name like PBT-CERT-BS-01).
* Add a backend server:
* IP Address: Use the private IP of PBT-CERT-VM-01 (find this in the instance details under Compute>Instances).
* Port: 80 (HTTP, as configured on the web server).
* Protocol: HTTP.
* ClickCreate.
Step 4: Attach the Security List to the Subnet
* Navigate toNetworking>Virtual Cloud Networks.
* Select PBT-CERT-VCN-01 and clickSubnets.
* Click on LB-Subnet-PBT-CERT-SNET-02.
* UnderSecurity Lists, ensure PBT-CERT-LB-SL-01 is attached. If not:
* ClickEdit.
* Remove the default security list and add PBT-CERT-LB-SL-01.
* ClickSave Changes.
Step 5: Verify the Configuration
* Ensure the load balancer health status is OK (check underBackend Sets>Health).
* Test by accessing https://<load-balancer-public-ip> in a browser (replace with the public IP from the load balancer details).

Task 4: Create a Certificate Authority (CA)
Create a certificate authority, where:
CA name: PBT-CERT-CA-01-<username>
For example, if your username is 99008677-lab.user01, then the certificate authority name should be PBT- CERT-CA-01990086771abuser01 Ensure you eliminate special characters from the user name.
Common name: PBT-CERT-OCICA-01
Master Encryption Key: PBT-CERT-MEK-01 (created in the previous task)

See the solution below in Explanation.
Task 4: Create a Certificate Authority (CA)
Step 1: Access the OCI Vault
* Log in to the OCI Console.
* Navigate toIdentity & Security>Vault.
* Select the root compartment.
* Locate and click on the vault named PBI_Vault_SP.
Step 2: Create the Certificate Authority
* In the PBI_Vault_SP vault details page, underResources, clickCertificate Authorities.
* ClickCreate Certificate Authority.
* Enter the following details:
* Name: Replace <username> with your username (e.g., if your username is 99008677-lab.user01, remove special characters like - and . to get 99008677labuser01, then use PBT-CERT-CA-
0199008677labuser01).
* Common Name: Enter PBT-CERT-OCICA-01.
* Master Encryption Key: Select the PBT-CERT-MEK-01<username> key created in Task 3 (e.
g., PBT-CERT-MEK-0199008677labuser01).
* Subject: Leave as default or adjust (e.g., Organization, Country) if required by your setup.
* Validity Period: Set as needed (e.g., 10 years), or use the default.
* Compartment: Ensure it's set to the root compartment.
* ClickCreate Certificate Authorityand wait for the CA to be provisioned.
Step 3: Verify the Certificate Authority
* After creation, go to theCertificate Authoritiessection under PBI_Vault_SP.
* Confirm the CA PBT-CERT-CA-01<username> (e.g., PBT-CERT-CA-0199008677labuser01) is listed and its status is active.

"A company, ABC, is planning to launch a new web application on OCI. Based on past experiences, they expect a significant surge in traffic after the launch. You are responsible for ensuring that the application is highly available.
Which step would you perform to achieve this goal?

• A. Use a load balancer to distribute incoming traffic evenly across multiple instances of the web application."
• B. Configure Cloud Guard to prevent large amounts of traffic from reaching the web application.
• C. Implement security controls, such as web application firewalls, to protect against common attack vectors.
• D. Use a Virtual Cloud Network (VCN) with subnets, security lists, and routing rules to isolate the web application from the Internet and other resources.

According to the Oracle Cloud Infrastructure (OCI) Shared Responsibility Model, which statement accurately reflects OCI's responsibility for security?

• A. Customers are responsible for securing both infrastructure and data.
• B. OCI is responsible for securing the underlying infrastructure but not customer data.
• C. OCI provides security only for free-tier services; customers secure everything else.
• D. OCI has no security responsibilities; customers need to secure their resources.