Which configuration parameter on a Postfix server modifies only the sender address and not the recipient address?

1. A. alias_maps
2. B. alias_rewrite_maps
3. C. sender_canonical_maps
4. D. sender_rewrite_maps

Correct Answer: C

Which of the following services belongs to NFSv4 and does not exist in NFSv3?

1. A. rpc.idmapd
2. B. rpc.statd
3. C. nfsd
4. D. rpc.mountd

Correct Answer: A

Which of these sets of entries does the following command return?

1. A. Entries that don’t have a cn of marie or don’t have a telephoneNumber that begins with 9.
2. B. Entries that have a cn of marie or don’t have a telephoneNumber beginning with 9.
3. C. Entries that have a cn of marie and a telephoneNumber that ending with 9.
4. D. Entries that don’t have a cn of marie and don’t have a telephoneNumber beginning with 9.
5. E. Entries that have a cn of marie or have a telephoneNumber beginning with 9.

Correct Answer: C

Which Postfix command can be used to rebuild all of the alias database files with a single invocation and without the need for any command line arguments?

1. A. makealiases
2. B. newaliases
3. C. postalias
4. D. postmapbuild

Correct Answer: B

Which of the statements below are correct regarding the following commands, which are executed on a Linux router? (Choose two.)

1. A. Packets with source or destination addresses from fe80::/64 will never occur in the FORWARD chain
2. B. The rules disable packet forwarding because network nodes always use addresses from fe80::/64 to identify routers in their routing tables
3. C. ip6tables returns an error for the second command because the affected network is already part of another rule
4. D. Both ip6tables commands complete without an error message or warning
5. E. The rules suppress any automatic configuration through router advertisements or DHCPv6

Correct Answer: DE