- Lab
- A Cloud Guru
RH342 Practice Exam
This is the RH342 Practice Exam. It is based on RedHat 7.7. *This course is not approved or sponsored by Red Hat.*
Path Info
Table of Contents
-
Challenge
Debug an application.
On HostA, there is an application
/root/example_app
- troubleshoot and resolve this application so that it will run successfully. -
Challenge
Test an application for a memory leak.
On HostA, test the application
/root/memleak_test_app
for a memory leak. If a memory leak is detected, remove the executable bit from the application. -
Challenge
Manage a kernel module.
On HostA, configure the module
nf_conntrack
to enable timestamping of network flows. This change should persist through a reboot. Any services stopped to make this change should be restarted. -
Challenge
Upgrade a package.
On HostA, upgrade Apache (
httpd
) to the latest version and apply version control to limit future upgrades. -
Challenge
Resolve SELinux issues.
On HostA, resolve any issues starting the Apache (
httpd
) service, or issues viewing the content. The existing web content and configuration should not be modified. -
Challenge
Resolve authentication issues.
On HostA, the LDAP/Kerberos user
testuser01
should be able to log in and obtain a Kerberos ticket using the passwordwelcome1
. -
Challenge
Monitor system for vital characteristics.
On HostA, there is a Performance Co-Pilot archive file:
/root/archive.tgz
. What was the 1 min kernel load at 17:19:46?Enter the value as a number into
/root/load.txt
. For example, if the load was 7.700, the command would be:echo "7.700" > /root/load.txt
-
Challenge
Recover data from a corrupted file system.
On HostB, recover the data from the filesystem mounted at
/storage
.
The integrity of the files on the filesystem must be preserved. -
Challenge
Recover data from a broken LVM configuration.
On HostB, troubleshoot and resolve the LVM issues preventing the data on
/lvm_mount
from being accessed.
The integrity of the files on the filesystem must be preserved. -
Challenge
Recover data from an encrypted file system.
On HostB, troubleshoot and resolve the issues preventing the data located at
/luks
from being accessed. The integrity of the files on the filesystem must be preserved. There is a backup header file located in/root/
. -
Challenge
Troubleshoot issues affecting service start.
On HostB, start the Performance Co-Pilot service and configure it to start automatically upon reboot.
-
Challenge
Troubleshoot system resource consumption.
On HostC, something is consuming an excessive amount of CPU load. Prevent whatever it is from being executable in the future.
-
Challenge
Troubleshoot an application.
On HostC, troubleshoot and resolve the issue affecting the use of the
dig
command. -
Challenge
Troubleshoot service authentication.
On HostC, troubleshoot and resolve the issue preventing
cloud_user
from listing the local Samba shares. Do not modify the existing Samba configuration file/etc/samba/smb.conf
.Username:
cloud_user
Password:
welcome1
-
Challenge
Troubleshoot iSCSI.
HostC is an iSCSI target. Troubleshoot issues preventing HostD from accessing the target. HostD should successfully be able negotiate the iSCSI connection and attach to the block device.
-
Challenge
Configure remote logging.
Configure HostC as a remote log server for HostD. The connection should be over the standard TCP port.
-
Challenge
Troubleshoot RPM issues.
HostD has a corrupt RPM database. Troubleshoot and resolve this issue.
-
Challenge
Troubleshoot networking.
Step 1
Troubleshoot any networking issues preventing HostD from accessing the Apache content on HostA at http://ip-10-0-1-10/index.html
Step 2
There is a packet capture file located at
/root/packet.cap
. Examine this file and discern the password used bytestuser01
. Enter this password as a single line into the file/root/passwd.txt
.Example:
echo "password" >> /root/passwd.txt
-
Challenge
Examine and retrieve information from an sosreport.
On HostD, examine the sosreport located at
/root/sosreport-ip-10-0-1-11-2019-03-22-wxoxhnk.tar.xz
and determine the LDAP hostname the host attempted to bind to.Enter the name of this hostname as a single line in
/root/test.txt
.Example:
echo "server.example.com" >> /root/test.txt
-
Challenge
Assist in providing information for third-party investigation.
On HostD, permit
cloud_user
to runexample.stp
as a module namedcloud_tap
.
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