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| Section | Objectives |
|---|---|
| Topic 1: Ansible Core Concepts | - Use Ansible modules and ad-hoc commands - Install and configure Ansible control node - Configure managed nodes for automation |
| Topic 2: Security and Automation Practices | - Manage firewall rules and SELinux settings - Secure automation workflows using Ansible Vault - Configure SSH and key-based authentication |
| Topic 3: System Configuration and Services | - Manage services and system state with Ansible - Configure storage and file systems - Manage users, groups, and permissions |
| Topic 4: Automation and Task Execution | - Implement task control (loops, conditionals, handlers) - Create and run Ansible playbooks - Use variables, facts, and inventories |
올바른 텍스트
스왑 공간을 만들고 크기를 600MB로 설정한 뒤, 시스템을 재부팅하면 자동으로 마운트되도록 합니다(영구 마운트).
Correct Answer:
if=/dev/zeroof=/swapfilebs=1Mcount=600mkswap/swapfile/etc/fstab:/swapfileswapswapdefaults00mount-a
올바른 텍스트
/data에서 작업 중이며, 초기 크기는 2GB입니다. /dev/test0/lvtestvolume은 /data에 마운트되어 있습니다. 이제 /data에 더 많은 공간이 필요하지만, 이미 모든 디스크를 물리 볼륨에 추가했습니다. 하드 디스크에 약 5GB의 할당되지 않은 공간이 있는 것을 확인했습니다. lvtestvolume의 크기를 5GB 더 늘리세요.
Correct Answer:
Createapartitionhavingsize5GBandchangethesysteid'8e'.
usepartprobecommand
pvcreate/dev/hda9Supposeyourpartitionnumberishda9.
vgextendtest0/dev/hda9vgextendcommandaddthephysicaldiskonvolumegroup.
lvextend-L+5120M/dev/test0/lvtestvolume
verifyusinglvdisplay/dev/test0/lvtestvolume.
올바른 텍스트
vo라는 논리 볼륨 용량을 190M에서 300M으로 변경합니다. 그리고 부동 소수점 범위의 크기는 280~320 사이로 설정해야 합니다. (이 논리 볼륨은 미리 마운트되었습니다.)
Correct Answer:
#vgdisplay(Checkthecapacityofvgifthecapacityisnotenoughneedtocreatepvvgextendlvextend)
#lvdisplay(Checklv)
#lvextend-L+110M/dev/vg2/lv2
#resize2fs/dev/vg2/lv2mount-a(Verify)-------------------------------------------------------------------------------(Decreaselvm)
#umount/media
#fsck-f/dev/vg2/lv2
#resize2fs-f/dev/vg2/lv2100M
#lvreduce-L100M/dev/vg2/lv2
#mount-a
#lvdisplay(Verify)OR
#e2fsck-f/dev/vg1/lvm02
#resize2fs-f/dev/vg1/lvm02
#mount/dev/vg1/lvm01/mnt
#lvreduce-L1G-n/dev/vg1/lvm02
#lvdisplay(Verify)
올바른 텍스트
귀하의 시스템은 172.24.0.0/16 및 172.25.0.0/16의 라우터로 사용됩니다. IP 전달을 활성화하세요.
1. "1" >/proc/sys/net/ipv4/ip_forward를 에코합니다.
2. vi /etc/sysctl.conf net.ipv4.ip_forward=1
Correct Answer:
/procisthevirtualfilesystemcontainingtheinformationabouttherunningkernel.Tochangetheparameterofrunningkernelyoushouldmodifyon/proc.FromNextrebootthesystemkernelwilltakethevaluefrom/etc/sysctl.conf.
올바른 텍스트
vo 볼륨 그룹 아래에 myvol이라는 이름의 논리 볼륨 하나를 생성하여 마운트합니다. 이 논리 볼륨의 초기 크기는 400MB입니다. 데이터 손실 없이 논리 볼륨 크기를 200MB로 설정합니다. 논리 볼륨의 크기는 200MB에서 210MB 사이가 적합합니다.
Correct Answer:
FirstcheckthesizeofLogicalVolume:lvdisplay/dev/vo/myvol
Makesurethatthefilesystemisinaconsistentstatebeforereducing:
#fsck-f/dev/vo/myvol
Nowreducethefilesystemby200MB.
#resize2fs/dev/vo/myvol200M
Itisnowpossibletoreducethelogicalvolume.
#lvreduce/dev/vo/myvol-L200M
VerifytheSizeofLogicalVolume:lvdisplay/dev/vo/myvol
Verifythatthesizecomesinonlineornot:df-h
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