An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
Approximately 2.81 × 1 0 21 electrons flow through the device when a current of 15.0 A is delivered for 30 seconds. This is calculated by first finding the total charge in coulombs and then dividing it by the charge of a single electron. The steps involve using basic formulas for current and charge.
;
To ensure that the database servers in a private subnet can securely access Oracle Cloud Infrastructure (OCI) Object Storage without exposure to the public internet, the company should use a Service Gateway.
Here's why the Service Gateway is the correct choice:
What is a Service Gateway?
A Service Gateway is a feature in Oracle Cloud Infrastructure that provides private access to Oracle services like Object Storage, without routing traffic over the internet. It allows resources within VCN (Virtual Cloud Network) subnets to securely communicate with public OCI services, ensuring that the traffic does not leave the Oracle network.
Why choose a Service Gateway?
Security: Communication is kept private and secure within the Oracle Cloud Infrastructure.
Efficiency: Avoids additional setup complexities associated with alternatives like a VPN.
Cost-effective: Reduces costs that might accumulate when data is transferred over the internet.
Simplicity: Seamlessly integrates with other OCI services.
Why not the other options?
Local Peering Gateway (A): This is mainly used for peering VCNs within the same region and wouldn't facilitate access to Object Storage.
NAT Gateway (B): While a NAT Gateway allows private subnets to access the internet, it would expose traffic to the internet, which contravenes the requirement for secure communication.
VPN Gateway (D): Used primarily to establish encrypted connections between OCI and on-premises networks over the internet, which is unnecessary for accessing OCI Object Storage.
Implementation:
Configure the Service Gateway within the VCN.
Update the route tables of the private subnet to direct traffic destined for OCI regions to the Service Gateway.
By implementing a Service Gateway, the company can achieve secure and efficient access to OCI Object Storage for their database servers in a private subnet.
Thus, the correct choice is C) Use a Service Gateway to establish a secure connection to Object Storage.
