최신Oracle Linux 6 Advanced System Administration - 1z1-105무료샘플문제
Examine the contents of /etc/mail/access:
Connect:localhost.localdomain
RELAY
Connect: localhost
RELAY
Connect:127.0.0.1
RELAY
This system is to be used as an MTA or mail gateway for the local LAN network address
192.168.1.0/24.
Which two actions allow this mail host to route email for the network?
Examine the dtrace command.
dtrace -n 'proc:::exec {trace(execname);trace(pid);trace(stringof(arg0));}'
Which two statements are true?
Which two statements are true about recursive nameservers that are supported by Oracle Linux?
Examine these commands and their output:
# mount | grep xfs
/dev/mapper/vg_xfs_xfs1 on /xfs1 typr xfs (rw, quota_
# xfs_quota -x -c 'enable -u' /xfs1
# xfs_quota -x -c 'enable -g' /xfs1
XFS_QUOTAON: Invalid argument
Identify the reason for the "Invalid argument" error.
Examine the two commands and the output produced:
[root@host03 ~]# iscsiadm -m session
iscsiadm: No active sessions.
[root@host03 ~]# iscsiadm -m node 192.0.2.1:3260,1 iqn.2013-03.com.example.mypc:3 192.0.2.1:3260,1 iqn.2013-03.com.example.mypc:2 192.0.2.1:3260,1 iqn.2013-03.com.example.mypc:1 Which option represents the correct command or commands to establish iSCSI sessions with the
target portal 192.0.2.1:3260?
Which three statements are true about accessing Windows shares from Linux with SAMBA on Oracle Linux?
You have an unmounted btrfs file system: # btrfs filesystem show Label: 'Btrfs' uuid: 7bfe3239-47ee-442b-b9f8-49f88b6b1be4 Total devices 3 FS bytes used 300.51MB devid2 size 4.88GB used 1.06GB path /dev/sdd devid1 size 4.88GB used 580.00GB path /dev/sdc devid3 size 4.88GB used 1.50GB path /dev/sdb You have these mounted devices: # df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_exam1-LogVol_system
9.6G 3.3G 3.9G 46% /
tmpfs
499M
499M
0%
/dev/shm
/dev/sda1
485M
77M
384M
17%
/boot
You have a mount point for the btrfs file system:
# ls -all /btrfs
total 0
drwxr-xr-x. 1 root root 0 Aug 12 10:17 .
dr-xr-xr-x. 1 root root 276 Aug 12 10:36 ..
Examine these steps:
1.Manual defragment is not needed. Btrfs will defragment it automatically.
2.btrfs device defragment /dev/sdd
3.btrfs filesystem defragment /btrfs
4.btrfs device delete /dev/sdb /btrfs
5.mount UUID=7bfe3239-47ee-442b-b9f8-49f88b6b1be4 /btrfs
6.btrfs device delete /dev/sdb /dev/sdd
What is the correct order to delete the /dev/sdb device from the btrfs file system and for defragmenting the reduced file system?
Examine the contents of the /etc/ocfs2/cluster.conf file: node: name = exam2 cluster = mycluster number = 0 ip_address = 192.168.56.106 ip_port = 7777
node: name = exam3 cluster = mycluster number = 1 ip_address = 192.168.56.107 ip_port = 7777 clustr: name = mycluster heartbeat_mode = local node_count = 2 Identify the minimum number of commands issued, in the correct order, to create this file.
1.o2cb add-cluster --heartbeat_mode local mycluster
2.o2cb add-node --ip 192.168.56.107 --number 1 mycluster exam3
3.o2cb add-cluster mycluster
4.o2cb add-node --ip 192.168.56.106 -- number 0 mycluster exam2
5.o0cb config-cluster -node_count 2 mycluster
6.o2cb configure
You construct a new udev rule to name a specific removable device, but the rule does not appear to work.
Which command would you use to troubleshoot the new rule?
Which two statements about the yum-fs-snapshot plugin are true?