A network administrator is designing a new datacenter in a different region that will need to communicate to the old datacenter with a secure connection. Which of the following access methods would provide the BEST security for this new datacenter?
Using a site-to-site VPN allows for two offices or data centers to communicate with each other over a secure connection making it the best choice for this question.
As for VNC, I believe its used just like RDP with the exception of it being more secure and also simply as a second option in the case that RDP isn't an option to use to connect to a desktop.
SSH is a method of securely connecting to a device's CLI to make configuration changes or to simply check configs. SSH has many purposes but mostly it is used to connect to a foreign device without any GUI.
Site-to-Site VPN connections are used to connect regional offices back to a main branch office.
Encapsulates entire packets & puts another header on top of them. This is going to increase the size of the packets that can meet the MTU. You readdress the packets with a header & then ship them to somebody else. The new header is going to have a new source & destination read by the VPN terminating devices located @ the different site that it is to going to. Once the packet reaches the other site, the VPN concentrator will remove the outer envelope of the header & therefore decapsulate the packets to be decrypted & routed across the LAN, just as if it was coming from an internally connected client.
This is better worded than my other. ^
Site-to-site VPN connections are used to connect regional offices back to a main office.
This can be done by Tunneling Mode which encapsulates the entire packets & puts another header on top of it. This is going to increase the size of the packet & it can go over the MTU. You readdressed it & then ship it to somebody else. The new header is going to have a new source & destination of the VPN terminating devices at the different site that it wants to go to. Once the packet reaches the other site, the VPN concentrator will remove the outer envelope of the header inside of a network packet to be decrypted & routed across the private LAN, just as if it was coming from an internally connected client. To ensure packets make it through the VPN, you might need to allow jumbo frames, this should only be done on your LAN.
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