Oracle Linux 8 Advanced System Administration (1Z0-106) Free Practice Test

Question 1

Which takes precedence for ssh program configuration?

A. Command line

B. ~/.ssh/config

C. /etc/ssh/sshd_config

D. /etc/ssh/ssh_config

Correct Answer: A

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Question 2

Examine this command:
# ssh -L 5011:127.0.0.1:80 [email protected] -f sleep 30
Which two are true upon execution?

A. An SSH connection process is forked to the background.

B. A local port forward is created between client and server.

C. A socket remains open for 30 minutes unless a connection is established.

D. A web server is listening on port 5011.

E. A reverse tunnel is created back to the local host on port 80.

Correct Answer: A,B

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Question 3

Examine this udev device naming rule which gets processed successfully:
makefile
KERNEL=="hdb", DRIVER=="ide-disk", SYMLINK+="sparedisk"
Which two statements are true?

A. Symbolic link /dev/sparedisk is created for a device named /dev/hdb which has an ide-disk device driver if such a device is discovered.

B. The matching device will have the kernel device name /dev/hdb.

C. Symbolic link /dev/sparedisk is created linking to /dev/hdb and with an ide-disk device driver, thus overwriting existing symbolic links.

D. The matching device will be named /dev/sparedisk.

E. Symbolic link /dev/sparedisk is created for a device named /dev/hdb or one that has an ide-disk device driver, whichever is discovered first.

Correct Answer: A,B

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Question 4

Examine /etc/anacrontab:
SHELL=/bin/sh
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
# the maximal random delay added to the base delay of the jobs
RANDOM_DELAY=45
# the jobs are started during the following hours only
START_HOURS_RANGE=3-22
# period in days delay in minutes job-identifier command
1 5 dailyjob nice run-parts /etc/cron.daily
7 25 weeklyjob nice run-parts /etc/cron.weekly
@monthly 45 monthlyjob nice run-parts /etc/cron.monthly
Which two statements are true about the jobs scheduled in this file?

A. Jobs defined in this anacrontab file can be executed between 15:00 and 22:00

B. Scripts run by the third job are delayed between 45 and 90 minutes.

C. Scripts run by the second job are delayed between 31 and 70 minutes.

D. Scripts run by the first job are delayed between 11 and 45 minutes.

E. Jobs defined in this anacrontab file are randomly delayed by up to 51 minutes.

Correct Answer: A,B

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Question 5

Which command configures a fully functional and accessible interface on VLAN 800?

A. modprobe 8021q ip link add link eth0 name eth0.800 type vlan id 800 ip address add 10.135.1.120/24 dev eth0.800 ip link set eth0.800 up

B. modprobe 8021q ip link add link eth0 name eth0.800 type vlan id 800 ip link set eth0.800 up

C. modprobe 8021q ip link add link eth0 name eth0.800 VLAN 800 ip address add 10.135.1.120/24 dev eth0.800 ip link set eth0.800 up

D. modprobe 8021q ip address add 10.135.1.120/24 dev eth0.800 ip link set eth0.800 up

Correct Answer: A

Question 6

Examine this command and output:
# mdadm --detail /dev/md0
/dev/md0:
Version: 1.2
Creation Time: Tue Oct 27 16:53:38 2020
Raid Level: raid5
Array Size: 207872 (203.03 MiB 212.86 MB)
Used Dev Size: 103936 (101.52 MiB 106.43 MB)
Raid Devices: 3
Total Devices: 3
Persistence : Superblock is persistent
Update Time: Tue Oct 27 16:53:38 2020
State: clean, degraded, recovering
Active Devices: 2
Working Devices: 3
Failed Devices: 0
Spare Devices: 1
Layout: left-symmetric
Chunk Size: 512K
Rebuild Status: 60% complete
Name: ol8.example.com:0 (local to host ol8.example.com)
UUID: 70f8bd2f:0505d92d:750a781e:c224508d
Events: 66
Number Major Minor RaidDevice State
0 8 49 0 active sync /dev/sdd1
1 8 65 1 active sync /dev/sde1
3 8 81 2 spare rebuilding /dev/sdf1
Which two are true?

A. An extra device was added to this RAID set to increase its size.

B. A RAID device failed and has returned to normal operating status.

C. The RAID set read and write performance is currently sub-optimal.

D. Only write performance is currently sub-optimal on this RAID set.

E. A new RAID device was just added to replace a failed one.

Correct Answer: C,E

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Question 7

Which three statements are true about DNF modules?

A. Streams cannot declare dependencies on the streams of other modules.

B. Installing a module allows a user to select a specific stream.

C. Streams are used to define optional configurations of modules.

D. Modules are a group of packages that are installed together along with dependencies.

E. Profiles are used to provide alternate versions of the same module.

F. Packages exist in multiple streams, where each stream contains a different version.

G. Switching an enabled module stream automatically changes installed packages.

Correct Answer: B,D,F

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Oracle Linux 8 Advanced System Administration (1Z0-106) Free Practice Test