Most Recent Oracle 1Z0-1085-23 Exam Dumps

When you create an instance, the instance is automatically attached to a virtual network interface card (VNIC) in the cloud network's subnet and given a private IP address from the subnet's CIDR. You can let the IP address be automatically assigned, or you can specify a particular address of your choice. The private IP address lets instances within the cloud network communicate with each other.

https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Tasks/launchinginstance.htm

Instances use IP addresses for communication. Each instance hasat leastone private IP address andoptionallyone or more public IP addresses. A private IP address enables the instance to communicate with other instances inside the VCN, or with hosts in your on-premises network (via an IPSec VPN or Oracle Cloud Infrastructure FastConnect). A public IP address enables the instance to communicate with hosts on the internet.

Network Security Groups (NSGs) and Security Lists (SLs) are two virtual firewall features that can be used for controlling traffic in an OCI Virtual Cloud Network (VCN).NSGs and SLs allow you to create stateful network filtering rules that allow or deny network traffic based on source and destination IP addresses, ports, and protocols5

NSGs are a subsequent feature designed for application components that have different security postures. NSGs are a set of security rules that you can apply to a set of VNICs in a VCN. NSGs are associated with VNICs, not subnets. You can use NSGs to implement a network security policy at the level of individual VNICs or a group of VNICs.For example, you can use NSGs to control traffic between tiers of an application deployed in a VCN5

SLs are the original virtual firewall feature from the Networking service. SLs are a set of security rules that you apply to a subnet in a VCN. SLs are associated with subnets, not VNICs. You can use SLs to implement a network security policy at the level of the subnet.For example, you can use SLs to control traffic between subnets in a VCN5

ANAT gatewaygives cloud resources without public IP addresses access to the internet without exposing those resources to incoming internet connections.

The Universal Credits pricing model allows customers to use prepaid credits for any eligible cloud service.This gives customers the flexibility to switch between services or regions as needed without having to renegotiate contracts2