Question 1mediummultiple choice
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Refer to the exhibit. $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 223.6G 0 disk ├─sda1 8:1 0 512M 0 part /boot ├─sda2 8:2 0 16G 0 part [SWAP] └─sda3 8:3 0 207.1G 0 part /
Refer to the exhibit. $ dmesg | grep -i "ata" [ 1.234567] ata1: SATA max UDMA/133 abar m2048@0xfebf8000 port 0xfebf8100 irq 24 [ 1.234568] ata2: SATA max UDMA/133 abar m2048@0xfebf8000 port 0xfebf8180 irq 24 [ 1.345678] ata1: SATA link up 6.0 Gbps (SStatus 123 SControl 300) [ 1.345679] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 1.567890] ata1.00: ATA-11: Samsung SSD 860 EVO, MZ-76E250, max UDMA/133 [ 1.567891] ata1.00: 488397168 sectors, multi 16: LBA48 NCQ (depth 32) [ 1.567892] ata2.00: ATA-9: WDC WD10EZEX-00WN4A0, 01.01A01, max UDMA/133 [ 1.567893] ata2.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 32)
Refer to the exhibit. # dmesg | grep -i 'ata\|sda' [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 2.345678] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 2.345679] ata1.00: ATA-8: ST31000524AS, JC45, max UDMA/133 [ 2.345680] ata1.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 31/32) [ 2.345681] ata1.00: configured for UDMA/133 [ 2.345682] scsi 0:0:0:0: Direct-Access ATA ST31000524AS JC45 PQ: 0 ANSI: 5 [ 2.345683] sd 0:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) [ 2.345684] sd 0:0:0:0: [sda] Write Protect is off [ 2.345685] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 2.345686] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 2.345687] sda: sda1 sda2 [ 2.345688] sd 0:0:0:0: [sda] Attached SCSI disk
Drag steps to the numbered slots on the right, or tap a step then tap a slot.
Drag a concept onto its matching description — or click a concept then click the description.
Permissions for a specific user
Permissions for a specific group
Maximum permissions for named users and groups
Permissions for everyone else
Inherited ACL for new files/directories
Refer to the exhibit. ``` NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 238.5G 0 disk ├─sda1 8:1 0 512M 0 part /boot ├─sda2 8:2 0 20G 0 part / ├─sda3 8:3 0 4G 0 part [SWAP] └─sda4 8:4 0 214G 0 part /home sdb 8:16 0 120G 0 disk ```
Refer to the exhibit. ``` [ 2.345678] scsi 2:0:0:0: Direct-Access ATA ST1000DM003-1CH1 CC43 PQ: 0 ANSI: 5 [ 2.345780] sd 2:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) [ 2.345782] sd 2:0:0:0: [sda] Write Protect is off [ 2.345783] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 2.345785] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 2.346001] sda: sda1 sda2 [ 2.346567] sd 2:0:0:0: [sda] Attached SCSI disk ```
Refer to the exhibit. ``` UNIT LOAD ACTIVE SUB DESCRIPTION basic.target loaded active active Basic System cryptsetup.target loaded active active Local Encrypted Volumes getty.target loaded active active Login Prompts graphical.target loaded active active Graphical Interface local-fs-pre.target loaded active active Local File Systems (Pre) local-fs.target loaded active active Local File Systems multi-user.target loaded active active Multi-User System network-online.target loaded active active Network is Online network.target loaded active active Network paths.target loaded active active Paths remote-fs.target loaded active active Remote File Systems slices.target loaded active active Slices sockets.target loaded active active Sockets swap.target loaded active active Swap sysinit.target loaded active active System Initialization timers.target loaded active active Timers ```
# dmesg | grep -i "sd" [ 1.234567] sd 0:0:0:0: [sda] 20971520 512-byte logical blocks: (10.7 GB/10.0 GiB) [ 1.234567] sd 0:0:0:0: [sda] Write Protect is off [ 1.234567] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 1.234567] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 1.567890] sd 0:0:0:1: [sdb] 4194304 512-byte logical blocks: (2.15 GB/2.00 GiB) [ 1.567890] sd 0:0:0:1: [sdb] Write Protect is off [ 1.567890] sd 0:0:0:1: [sdb] Mode Sense: 00 3a 00 00 [ 1.567890] sd 0:0:0:1: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
# ls -l /dev/disk/by-uuid/ total 0 lrwxrwxrwx 1 root root 10 Jan 10 10:00 1234-5678 -> ../../sda1 lrwxrwxrwx 1 root root 10 Jan 10 10:00 abcd-ef01 -> ../../sdb1
# systemctl get-default multi-user.target # ls -l /etc/systemd/system/default.target lrwxrwxrwx 1 root root 37 Jan 10 10:00 /etc/systemd/system/default.target -> /lib/systemd/system/multi-user.target
Refer to the exhibit. $ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 233.8G 0 disk ├─sda1 8:1 0 512M 0 part /boot ├─sda2 8:2 0 230G 0 part / └─sda3 8:3 0 2.8G 0 part [SWAP] sdb 8:16 0 931.5G 0 disk └─sdb1 8:17 0 931.5G 0 part /data
Refer to the exhibit. $ systemctl status sshd.service ● sshd.service - OpenSSH Daemon Loaded: loaded (/usr/lib/systemd/system/sshd.service; disabled; vendor preset: disabled) Active: inactive (dead)
A system administrator is responsible for a Linux server running a critical application. The server recently experienced an unplanned power outage. Upon rebooting, the system fails to reach the default target and drops into an emergency shell. The administrator notices that the root filesystem (/) is mounted read-only. The /etc/fstab file contains the following lines:
UUID=abc123 / ext4 errors=remount-ro 0 1 UUID=def456 /home ext4 defaults 0 2 UUID=ghi789 none swap sw 0 0
The administrator suspects that the /home filesystem has a corrupt superblock and is causing the boot failure. The administrator needs to check and repair the /home filesystem without causing data loss. Which of the following is the correct course of action?
01:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1068E PCI-Express Fusion-MPT SAS (rev 08)
Subsystem: LSI Logic / Symbios Logic SAS1068E PCI-Express Fusion-MPT SAS
Flags: bus master, fast devsel, latency 0, IRQ 24
I/O ports at ec00 [size=256]
Memory at f7ffc000 (64-bit, non-prefetchable) [size=16K]
Memory at f7ff8000 (64-bit, non-prefetchable) [size=16K]
Expansion ROM at f7f00000 [disabled] [size=256K]
Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [68] Express Endpoint, MSI 00
Capabilities: [98] Power Management version 3
Capabilities: [a0] MSI-X: Enable- Count=15 Masked-
Kernel driver in use: mpt3sas
Kernel modules: mpt3sas