Free PDF Questions For RedHat EX200 Exam, 136QAs

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Page: 1 / 28
Total Questions: 136

Questions & Answers PDF

• Question 1

  

  Part 2 (on Node2 Server)Task 8 [Tuning System Performance]Set your server to use the recommended tuned profile

  • Explanation:
    [root@node2 ~]# tuned-adm list
    [root@node2 ~]# tuned-adm active
    Current active profile: virtual-guest
    [root@node2 ~]# tuned-adm recommend
    virtual-guest
    [root@node2 ~]# tuned-adm profile virtual-guest
    [root@node2 ~]# tuned-adm active
    Current active profile: virtual-guest
    [root@node2 ~]# reboot
    [root@node2 ~]# tuned-adm active
    Current active profile: virtual-guest
    

  Reveal Answer Answer: 1 Next Question

• Question 2

  

  Part 2 (on Node2 Server)Task 7 [Implementing Advanced Storage Features]Create a thin-provisioned filesystem with the name think_fs from a pool think_pool using the devices.The filesystem should be mounted on /strav and must be persistent across reboot

  • Explanation:
    *
    [root@node2 ~]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    vdd 252:48 0 5G 0 disk
    vde 252:64 0 10G 0 disk
    vdo1 253:4 0 50G 0 vdo /vbread
    [root@node2 ~]# yum install stratis* -y
    [root@node2 ~]# systemctl enable --now stratisd.service
    [root@node2 ~]# systemctl start stratisd.service
    [root@node2 ~]# systemctl status stratisd.service
    [root@node2 ~]# stratis pool create think_pool /dev/vdd
    [root@node2 ~]# stratis pool list
    Name Total Physical Properties
    think_pool 5 GiB / 37.63 MiB / 4.96 GiB ~Ca,~Cr
    *
    [root@node2 ~]# stratis filesystem create think_pool think_fs
    [root@node2 ~]# stratis filesystem list
    Pool Name Name Used Created Device UUID
    think_pool think_fs 546 MiB Mar 23 2021 08:21 /stratis/think_pool/think_fs ade6fdaab06449109540c2f3fdb9417d
    [root@node2 ~]# mkdir /strav
    [root@node2 ~]# lsblk
    [root@node2 ~]# blkid
    /dev/mapper/stratis-1-91ab9faf36a540f49923321ba1c5e40d-thin-fs-ade6fdaab06449109540c2f3fdb9417d: UUID='ade6fdaa-b064-4910-9540-c2f3fdb9417d' BLOCK_SIZE='512' TYPE='xfs'
    *
    [root@node2 ~]# vim /etc/fstab
    UUID=ade6fdaa-b064-4910-9540-c2f3fdb9417d /strav xfs defaults,x-systemd.requires=stratisd.service 0 0
    [root@node2 ~]# mount /stratis/think_pool/think_fs /strav/
    [root@node2 ~]# df -hT
    /dev/mapper/stratis-1-91ab9faf36a540f49923321ba1c5e40d-thin-fs-ade6fdaab06449109540c2f3fdb9417d xfs 1.0T 7.2G 1017G 1% /strav
    

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• Question 3

  

  Part 2 (on Node2 Server)Task 6 [Implementing Advanced Storage Features]Add a new disk to your virtual machine with a ize of 10 GiBOn this disk, create a VDO volume with a size of 50 GiB and mount it persistently on /vbread with xfs filesystem

  • Explanation:
    *
    [root@node2 ~]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    vdd 252:48 0 5G 0 disk
    vde 252:64 0 10G 0 disk
    [root@node2 ~]# yum install kmod-kvdo vdo
    [root@node2 ~]# systemctl enable --now vdo
    [root@node2 ~]# systemctl start vdo
    [root@node2 ~]# systemctl status vdo
    [root@node2 ~]# vdo create --name=vdo1 --device=/dev/vde --vdoLogicalSize=50G
    [root@node2 ~]# vdostats --hu
    Device Size Used Available Use% Space saving%
    /dev/mapper/vdo1 10.0G 4.0G 6.0G 40% N/A
    [root@node2 ~]# mkfs.xfs -K /dev/mapper/vdo1
    *
    [root@node2 ~]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    vde 252:64 0 10G 0 disk
    vdo1 253:4 0 50G 0 vdo
    [root@node2 ~]# mkdir /vbread
    [root@node2 ~]# blkid
    /dev/mapper/vdo1: UUID='1ec7a341-6051-4aed-8a2c-4d2d61833227' BLOCK_SIZE='4096' TYPE='xfs'
    [root@node2 ~]# vim /etc/fstab
    UUID=1ec7a341-6051-4aed-8a2c-4d2d61833227 /vbread xfs defaults,x-systemd.requires=vdo.service 0 0
    [root@node2 ~]# mount /dev/mapper/vdo1 /vbread/
    [root@node2 ~]# df -hT
    Filesystem Type Size Used Avail Use% Mounted on
    /dev/mapper/vdo1 xfs 50G 390M 50G 1% /vbread
    

  Reveal Answer Answer: 1 Next Question

• Question 4

  

  Part 2 (on Node2 Server)Task 5 [Managing Logical Volumes]Add an additional swap partition of 656 MiB to your system. The swap partition should automatically mount when your system bootsDo not remove or otherwise alter any existing swap partition on your system

  • Explanation:
    *
    [root@node2 ~]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    vdc 252:32 0 5G 0 disk
    vdc1 252:33 0 4.1G 0 part
    datavg-datalv 253:3 0 3.9G 0 lvm /data
    vdd 252:48 0 5G 0 disk
    vde 252:64 0 10G 0 disk
    [root@node2 ~]# swapon -s
    Filename Type Size Used Priority
    /dev/dm-1 partition 2097148 1548 -2
    [root@node2 ~]# free -m
    total used free shared buff/cache available
    Mem: 1816 1078 104 13 633 573
    Swap: 2047 1 2046
    [root@node2 ~]# parted /dev/vdc print
    Number Start End Size Type File system Flags
    1 1049kB 4404MB 4403MB primary lvm
    *
    [root@node2 ~]# parted /dev/vdc mkpart primary linux-swap 4404MiB 5060MiB
    [root@node2 ~]# mkswap /dev/vdc2
    Setting up swapspace version 1, size = 656 MiB (687861760 bytes)
    no label, UUID=9faf818f-f070-4416-82b2-21a41988a9a7
    [root@node2 ~]# swapon -s
    Filename Type Size Used Priority
    /dev/dm-1 partition 2097148 1804 -2
    [root@node2 ~]# swapon /dev/vdc2
    *
    [root@node2 ~]# swapon -s
    Filename Type Size Used Priority
    /dev/dm-1 partition 2097148 1804 -2
    /dev/vdc2 partition 671740 0 -3
    [root@node2 ~]# blkid
    /dev/vdc2: UUID='9faf818f-f070-4416-82b2-21a41988a9a7' TYPE='swap' PARTUUID='0f22a35f-02'
    [root@node2 ~]# vim /etc/fstab
    UUID=9faf818f-f070-4416-82b2-21a41988a9a7 swap swap defaults 0 0
    [root@node2 ~]# reboot
    [root@node2 ~]# swapon -s
    Filename Type Size Used Priority
    /dev/dm-1 partition 2097148 1804 -2
    /dev/vdc2 partition 671740 0 -3
    

  Reveal Answer Answer: 1 Next Question

• Question 5

  

  Part 2 (on Node2 Server)Task 4 [Managing Logical Volumes]Resize the logical volume, lvrz and reduce filesystem to 4600 MiB. Make sure the the filesystem contents remain intact with mount point /datarz(Note: partitions are seldom exactly the size requested, so anything within the range of 4200MiB to 4900MiB is acceptable)

  • Explanation:
    *
    [root@node2 ~]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    vdb 252:16 0 5G 0 disk
    vdb1 252:17 0 4.2G 0 part
    vgrz-lvrz 253:2 0 4.1G 0 lvm /datarz
    vdc 252:32 0 5G 0 disk
    vdc1 252:33 0 4.4G 0 part
    datavg-datalv 253:3 0 3.9G 0 lvm /data
    vdd 252:48 0 5G 0 disk
    vde 252:64 0 10G 0 disk
    [root@node2 ~]# lvs
    LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
    lvrz vgrz -wi-ao---- 4.10g
    [root@node2 ~]# vgs
    VG #PV #LV #SN Attr VSize VFree
    vgrz 1 1 0 wz--n- <4.15g 48.00m
    [root@node2 ~]# parted /dev/vdb print
    Number Start End Size Type File system Flags
    1 1049kB 4456MB 4455MB primary lvm
    *
    [root@node2 ~]# df -hT
    Filesystem Type Size Used Avail Use% Mounted on
    /dev/mapper/vgrz-lvrz ext4 4.0G 17M 3.8G 1% /datarz
    [root@node2 ~]# parted /dev/vdb mkpart primary 4456MiB 5100MiB
    [root@node2 ~]# parted /dev/vdb set 2 lvm on
    [root@node2 ~]# udevadm settle
    [root@node2 ~]# pvcreate /dev/vdb2
    Physical volume '/dev/vdb2' successfully created.
    *
    [root@node2 ~]# vgextend vgrz /dev/vdb2
    Volume group 'vgrz' successfully extended
    [root@node2 ~]# lvextend -r -L 4600M /dev/vgrz/lvrz
    Size of logical volume vgrz/lvrz changed from 4.10 GiB (1050 extents) to 4.49 GiB (1150 extents).
    Logical volume vgrz/lvrz successfully resized.
    [root@node2 ~]# resize2fs /dev/vgrz/lvrz
    [root@node2 ~]# df -hT
    Filesystem Type Size Used Avail Use% Mounted on
    /dev/mapper/vgrz-lvrz ext4 4.4G 17M 4.2G 1% /datarz
    

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Page: 1 / 28
Total Questions: 136

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