Correct Answer:

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).

Correct Answer:

To create a public subnet named IAD-SP-PBT-PUBSNET-01 within the VCN IAD-SP-PBT-VCN-01 using a CIDR block of 10.0.1.0/24 and configure it to use the Internet Gateway, follow these steps based on the Oracle Cloud Infrastructure (OCI) Networking documentation.
Step-by-Step Solution for Task 4: Create a Public Subnet
* Log in to the OCI Console:
* Use your OCI credentials to log in to the OCI Console (https://console.us-ashburn-1.oraclecloud.
com).
* Ensure you have access to the assigned compartment.
* Navigate to Virtual Cloud Networks:
* From the OCI Console, click the navigation menu (hamburger icon) on the top left.
* UnderNetworking, selectVirtual Cloud Networks.
* Select the VCN:
* Locate and click on the VCN named IAD-SP-PBT-VCN-01 created in Task 3.
* UnderResources, selectSubnets.
* Create a New Subnet:
* Click theCreate Subnetbutton.
* Configure the Subnet Details:
* Name:Enter IAD-SP-PBT-PUBSNET-01.
* Compartment:Ensure it is set to the assigned compartment.
* Subnet Type:SelectPublic Subnet.
* CIDR Block:Enter 10.0.1.0/24.
* Route Table:Select the default route table associated with the VCN (ensure it includes a route to the Internet Gateway with destination 0.0.0.0/0).
* Subnet Access:SelectPublic Subnetand ensure the Internet Gateway is associated.
* DHCP Options:Leave as default or customize if required.
* Security List:Use the default security list or create a new one with appropriate ingress/egress rules (e.g., allow TCP port 22 for SSH and all egress traffic).
* Associate the Internet Gateway:
* Verify that the subnet is configured to route traffic through the Internet Gateway. This is automatically handled if you selected the public subnet option and the VCN's route table is correctly set (as configured in Task 3).
* If needed, edit the route table for the subnet to ensure a rule exists:
* Destination CIDR Block:0.0.0.0/0
* Target Type:Internet Gateway
* Target:Select the Internet Gateway associated with IAD-SP-PBT-VCN-01.
* Create the Subnet:
* ClickCreateto provision the subnet.
* Once created, the subnet will be listed under the VCN's subnets.
* Verify the Configuration:
* Go to the subnet details page for IAD-SP-PBT-PUBSNET-01.
* Confirm the CIDR block is 10.0.1.0/24 and that it is a public subnet with Internet Gateway access.
Notes
* Ensure the CIDR block 10.0.1.0/24 does not overlap with existing subnets in the VCN (10.0.0.0/16, including 10.0.10.0/24 from Task 3).
* The Internet Gateway association relies on the route table configuration from Task 3. If it's missing, update the route table as described in Step 6.

Correct Answer:

See the solution below in Explanation.
Explanation:
Since I can't create resources or retrieve OCIDs directly in your OCI environment, I'll provide a step-by-step solution based on verified OCI documentation and best practices as of 02:30 PM BST on Thursday, June 12,
2025. Follow these instructions precisely in the OCI Console or CLI, using the preconfigured PBI_Vault_SP vault and the PBT-CERT-CA-01<username> Certificate Authority created in the previous task. Replace
<username> with your actual username (e.g., 99008677-lab.user01), ensuring special characters are removed.
Task 5: Create a Certificate
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
* In the PBI_Vault_SP vault details page, underResources, clickCertificates.
* ClickCreate Certificate.
* 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-
0199008677labuser01).
* Common Name: Enter PBT-CERT-OCICERT-01.
* Certificate Authority: Select the PBT-CERT-CA-01<username> CA created in Task 4 (e.g., PBT-CERT-CA-0199008677labuser01).
* Subject: Leave as default or adjust (e.g., Organization, Country) if required.
* Validity Period: Set as needed (e.g., 1 year), or use the default.
* Compartment: Ensure it's set to the root compartment.
* ClickCreate Certificateand wait for the certificate to be issued.
Step 3: Verify the Certificate
* After creation, go to theCertificatessection under PBI_Vault_SP.
* Confirm the certificate PBT-CERT-01<username> (e.g., PBT-CERT-0199008677labuser01) is listed and its status is active.