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Oracle Exam 1Z0-1085-20 Topic 6 Question 29 Discussion

Actual exam question for Oracle's 1Z0-1085-20 exam
Question #: 29
Topic #: 6
[All 1Z0-1085-20 Questions]

What two statements regarding the Virtual Cloud Network (VCN) are true?

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Suggested Answer: A, B

When you work with Oracle Cloud Infrastructure, one of the first steps is to set up a virtual cloud network (VCN) for your cloud resources.

VIRTUAL CLOUD NETWORK (VCN) :

A virtual, private network that you set up in Oracle data centers. It closely resembles a traditional network, with firewall rules and specific types of communication gateways that you can choose to use. A VCN resides in a single Oracle Cloud Infrastructure region and covers a single, contiguous IPv4 CIDR block of your choice. SeeAllowed VCN Size and Address Ranges. The termsvirtual cloud network,VCN, and cloud networkare used interchangeably in this documentation. For more information, seeVCNs and Subnets.

SUBNETS :

Subdivisions you define in a VCN (for example, 10.0.0.0/24 and 10.0.1.0/24). Subnets contain virtual network interface cards (VNICs), which attach to instances. Each subnet consists of a contiguous range of IP addresses that do not overlap with other subnets in the VCN. You can designate a subnet to exist either in a single availability domainavailability domain

or across an entire region (regional subnets are recommended). Subnets act as a unit of configuration within the VCN: All VNICs in a given subnet use the same route table, security lists, and DHCP options (see the definitions that follow). You can designate a subnet as either public or private when you create it. Private means VNICs in the subnet can't have public IP addresses. Public means VNICs in the subnet can have public IP addresses at your discretion. SeeAccess to the Internet.


https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Concepts/overview.htm

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