For which two reasons would you define Network ACLs?

for configuring fine-grained access control for users and roles that need to access external network services from the database

for configuring fine-grained access control to Oracle wallets to make HTTP requests that require password or client-certificate authentication

to create auditing policies regarding the usage of network services from the database

to block network attacks or denial of service attacks directed at the database

to Improve the performance of the database applications that require access to remote network services