Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)

`substitute` is not a valid keyword for configuring DNS resolution in the `/etc/resolv.conf` file.

The `nameserver` keyword is used to specify the IP address of a DNS server that the system should query for name resolution.

The `search` keyword specifies a list of domain suffixes that the resolver should append to unqualified hostnames when attempting to resolve them.

`lookup` is not a valid keyword in `/etc/resolv.conf`; the order of name service lookups is configured in `/etc/nsswitch.conf`.

`method` is not a valid keyword for configuring DNS resolution in the `/etc/resolv.conf` file.