You deployed an LDAP server on Compute Engine that is reachable via TLS through port 636 using UDP. You want to make sure it is reachable by clients over that port. What should you do?
A.
Add the network tag allow-udp-636 to the VM instance running the LDAP server.
B.
Create a route called allow-udp-636 and set the next hop to be the VM instance running the LDAP server.
C.
Add a network tag of your choice to the instance. Create a firewall rule to allow ingress on UDP port 636 for that network tag.
D.
Add a network tag of your choice to the instance running the LDAP server. Create a firewall rule to allow egress on UDP port 636 for that network tag.
A tag is simply a character string added to a tags field in a resource, such as Compute Engine virtual machine (VM) instances or instance templates. A tag is not a separateresource, so you cannot create it separately. All resources with that string are considered to have that tag. Tags enable you to make firewall rules and routes applicable to specific VM instances.
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