Oracle 1z0-106 Exam With Confidence Using Practice Dumps

Understanding the Automounter Configuration:

/etc/auto.master:

/net -hosts

/- auto.direct ro

The /- auto.direct ro line indicates:

Mount Point Prefix:/ (direct mounts)

Map File:auto.direct

Global Mount Options:ro (read-only)

/etc/auto.direct:

/nfs1 host01:/export/share1

/nfs2 -sync host01:/export/share2

/nfs3 host02:/export/share3

/nfs1 and /nfs3:

No specific mount options in auto.direct.

Inherit the ro option from /etc/auto.master.

/nfs2:

Specifies -sync option in auto.direct.

Inherits ro from /etc/auto.master.

Mount options are ro,sync.

Mount Options Resolution:

Global Options (ro) apply to all entries unless overridden.

Per-Entry Options in auto.direct override or supplement global options.

Effective Mount Options:

/nfs1:

ro (from /etc/auto.master)

Default NFS options (async unless sync is specified)

/nfs2:

ro (from /etc/auto.master)

sync (specified in auto.direct)

/nfs3:

ro (from /etc/auto.master)

Default NFS options (async)

Oracle Linux Reference:

Oracle® Linux 8: Configuring File Systems-Automounter Configuration:

"Options specified in the master map apply to all entries in the map unless overridden by entries in the map itself."

NFS Default Options:

"By default, NFS mounts are asynchronous (async) unless the sync option is specified."

Conclusion:

/nfs1 and /nfs3:Mounted with ro,async.

/nfs2:Mounted with ro,sync.

Correct Option:A

Option A (Correct):The rule is applied to both IPv4 and IPv6 packets. Theinettable is used for filtering both IPv4 and IPv6 traffic, and since the rule is added to theinettable, it affects both IP versions.

Option E (Correct):The rule drops TCP packets inbound on port 80. The rule specifies theinputchain in thefiltertable, and it drops (drop) all TCP traffic (tcp) destined for port 80 (dport 80), which means any incoming TCP traffic on port 80 will be dropped.

Option B (Incorrect):The command does not automatically update the configuration on disk; the rule is applied immediately in memory but does not persist across reboots unless explicitly saved.

Option C (Incorrect):The rule specifies TCP packets only, not all traffic. Therefore, it does not drop traffic for protocols other than TCP.

Option D (Incorrect):Although this statement is correct, it is less specific than Option A, which is more accurate because it mentions both IP versions.

Option F (Incorrect):The rule applies to inbound traffic, not outbound, so it does not drop outbound traffic.

Oracle Linux Reference:Refer to:

Oracle® Linux 8: Managing Firewall Rules with nftables

The530 Permission deniederror indicates that the user is not allowed to log in. In vsFTPd, if theUSERLIST_ENABLEoption is set toYESin/etc/vsftpd/vsftpd.conf, and theoracleuser is listed in/etc/vsftpd/user_list, that user is explicitly denied access to the FTP server.