1z0-1072-20 Free Practice Test

- (Exam Topic 1)
You are deploying a highly available web application In Oracle Cloud Infrastructure and have decided to use a public load balancer. The back-end web servers will be distributed across all three availability domains (ADs).
How many subnets should you create to deliver a secure, highly available application?

1. A. two subnets in total; one regional private subnet to host your back-end web servers and one regional public subnet to host your public load load balancer.
2. B. two subnets in total; one regional public subnet to host your back-end web servers and one regional private subnet to host your public load load balancer.
3. C. three subnets in total; one regional public subnet to host your back-end web servers and two AD specific private subnets to host your private load load balancer.
4. D. one subnet in total; one regional private subnet to host your back-end web servers and your public load balancer.

Correct Answer: A
To accept traffic from the internet, you create a public load balancer. The service assigns it a public IP address that serves as the entry point for incoming traffic. You can associate the public IP address with a friendly DNS name through any DNS vendor.
A public load balancer is regional in scope. If your region includes multiple availability domains, a public load balancer requires either a regional subnet (recommended) or two availability domain-specific
(AD-specific) subnets, each in a separate availability domain. With a regional subnet, the Load Balancing service creates a primary load balancer and a standby load balancer, each in a different availability
domain, to ensure accessibility even during an availability domain outage.
If you create a load balancer in
two AD-specific subnets, one subnet hosts the primary load balancer and the other hosts a standby load balancer. If the primary load balancer fails, the public IP address switches to the secondary load balancer. The service treats the two load balancers as equivalent and you cannot specify which one is "primary".
Whether you use regional or AD-specific subnets, each load balancer requires one private IP address from its host subnet. The Load Balancing service supplies a floating public IP address to the primary load balancer. The floating public IP address does not come from your backend subnets.
You cannot specify a private subnet for your public load balancer.
The backend servers (Compute instances) associated with a backend set can exist anywhere, as long as the associated network security groups (NSGs), security lists, and route tables allow the intended traffic flow. Oracle recommends that you create your load balancer in a regional subnet.
Oracle recommends that you distribute your backend servers across all availability domains within the region.

- (Exam Topic 1)
Which statement is true about interconnecting Virtual Cloud Network (VCN)?

1. A. VCNs support transitive peering.
2. B. Peering VCNs should not have overlapping CIDR blocks.
3. C. VCNs must be in the same tenancy to be peered.
4. D. The only way to interconnect VCNs is through peering.

Correct Answer: B
Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Tasks/remoteVCNpeering.htm (note)

- (Exam Topic 2)
Which two identity providers can your administrator federate with Oracle Cloud Infrastructure? (Choose two.)

1. A. Microsoft Active Directory
2. B. Oracle Identity Cloud Services
3. C. AWS Directory Services
4. D. Google Directory Federation Services

Correct Answer: AB
References:
Oracle Cloud Infrastructure supports federation with Oracle Identity Cloud Service and Microsoft Active Directory (via Active Directory Federation Services (AD FS)), and any identity provider that supports the Security Assertion Markup Language (SAML) 2.0 protocol.

- (Exam Topic 1)
What happens after you successfully run the following command on your Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) using the YAML file defined below?
kubectl create -f definition.yml YAML file – definition.yml

1. A. A single Pod with a single container is created.
2. B. Two Pods with a container each are created.
3. C. A single Pod with two containers is created.
4. D. No Pod gets created.

Correct Answer: C

- (Exam Topic 2)
There are multiple options of migrating Oracle Databases from on-premises to Oracle Cloud Infrastructure.
Which two characteristics do you need to consider when choosing a migration method? (Choose two.)

1. A. On-premises database character set and application version
2. B. On-premises database version and quantity of data, including indexes
3. C. On-premises host operating system platform and network bandwidth
4. D. On-premises connectivity using remote and local VCN peering

Correct Answer: BC
References: https://docs.cloud.oracle.com/iaas/Content/Database/Tasks/migrating.htm Some of the characteristics and factors to consider when choosing a migration method are:
On-premises database versionDatabase service database versionOn-premises host operating system and versionOn-premises database character setQuantity of data, including indexesData types used in the
on-premises databaseStorage for data stagingAcceptable length of system outageNetwork bandwidth