Download Oracle Linux 5 and 6 System Administration.1z0-100.PracticeTest.2018-10-20.84q.vcex

Vendor: Oracle
Exam Code: 1z0-100
Exam Name: Oracle Linux 5 and 6 System Administration
Date: Oct 20, 2018
File Size: 2 MB
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Demo Questions

Question 1
What is the main advantage of the Oracle Unbreakable Enterprise Kernel compared with the Red Hat compatible kernel?
  1. It is more secure and, therefore, more difficult to hack.
  2. It has a lower Mean Time Between Failures.
  3. It provides higher availability for applications by reducing Mean Time to Recovery.
  4. It scales better for more CPUS, memory, and Infiniband network connections.
Correct answer: D
Explanation:
The Unbreakable Enterprise Kernel, for those who want to leverage the latest features from mainline Linux and boost performance and scalability. The Red Hat Compatible Kernel, for those who prefer strict Red Hat kernel ABI (kABI) compatibility.
The Unbreakable Enterprise Kernel, for those who want to leverage the latest features from mainline Linux and boost performance and scalability. 
The Red Hat Compatible Kernel, for those who prefer strict Red Hat kernel ABI (kABI) compatibility.
Question 2
Examine this output:
# df –t nfs 
FilesystemSizeUsedAvailUse%Mounted on 
o16:export30G21G7.6G74%/mnt
# 1s -1 /mnt/nfs.sh 
-rwxr-mr-x. 1 root root 22 May 8 16:37 /mnt/nfs.sh
# file /mnt/nfs.sh 
/mnt/nfs.sh: Bourne-Again shell script text executables
# /mnt/nfs.sh 
bash: /mnt/nfs.sh: Permission denied
What is the reason for the error?
  1. The file system was exported on host o16 using the ROOT_SQUASH option.
  2. The /export filesystem was mounted with the NOEXEC option on host o16.
  3. The filesystem mounted on /mnt was mounted with the NOEXEC option.
  4. The filesystem was exported on host o16 by using the NO_ROOT_SQUASH option.
Correct answer: C
Question 3
Which two software packages are prerequisites for enabling the configuration and use of a Network information Service (Nis) client?
  1. nis-tools
  2. slapi-nis
  3. ypbind
  4. nisserv
  5. nisbind
  6. yp-tools
Correct answer: CF
Explanation:
ypbind finds the server for NIS domains and maintains the NIS binding information. The client (normaly the NIS routines in the standard C library) could get the information over RPC from ypbind or read the binding files.
ypbind finds the server for NIS domains and maintains the NIS binding information. The client (normaly the NIS routines in the standard C library) could get the information over RPC from ypbind or read the binding files.
Question 4
Which two Statements are true concerning the configuration and use of cron and anacron?
  1. Anacron jobs are used to make sure cron jobs run if the system had been down when they were meant to run.
  2. All crontabs are held in the /etc/cron.d directory.
  3. Cron jobs may run as frequently as once a minute.
  4. Anacron jobs may run as frequently as once a minute.
  5. The crond daemon looks for jobs only in /etc/crontab.
Correct answer: AC
Question 5
Which statement is true concerning the /etc/sysconfig directory and its files and subdirectories?
  1. The contents are always the same for a specific version of the Oracle Linux Kernel.
  2. The file /etc/sysconfig/init is used by upstart to control the attributes of the tty devices that get started.
  3. The directory /etc/sysconfig/network-scripts contains files that must not be modified while the network is up.
  4. The files only contain default values for certain daemon processes.
Correct answer: B
Explanation:
The /etc/sysconfig/init file controls how the system appears and functions during the boot process. Note: The /etc/sysconfig directory contains files that control your system's configuration. The contents of this directory depend on the packages that you have installed on your system
The /etc/sysconfig/init file controls how the system appears and functions during the boot process. 
Note: The /etc/sysconfig directory contains files that control your system's configuration. The contents of this directory depend on the packages that you have installed on your system
Question 6
Examine the routing table:
  
Which three statements are true concerning the routing of IP packets?
  1. Traffic to 192.168.180.180 is routed via eth1.
  2. Traffic to 192.168.180.240 is routed via eth1.
  3. Traffic to 192.168.0.42 is routed via eth2.
  4. Traffic to 192.168.42.42 is routed via eth2.
  5. Traffic to 192.168.42.42 is routed via eth0.
  6. Traffic to 192.168.180.180 is routed via eth0.
Correct answer: ACD
Question 7
What is the purpose of Setting AUTOINSTALL to YES /etc/uptrack.conf?
  1. To install Ksplice kernel updates during the reboot of a system
  2. To install updates to the Ksplice software Itself during a system reboot
  3. To enable the uptrack cron job to install Ksplice kernel updates whenever they become available
  4. To enable Ksplice to automatically install the kernel rpm whenever new Ksplice kernel updates become available
  5. To enable Ksplice to install Ksplice kernel updates and new kernel RPMS whenever they become available
Correct answer: D
Explanation:
If you'd like Ksplice Uptrack to automatically install updates as they become available, run:sh install-uptrack YOUR_ACCESS_KEY --autoinstall in place of the above install-uptrack command, or set "autoinstall = yes" in your /etc/uptrack/uptrack.conf after installation. Note: Automatic updatesYou can configure your systems to automatically install updates as they become available. To enable autoinstall, set autoinstall = yes in your /etc/uptrack/uptrack.conf, or pass the --autoinstall flag during installation. Autoinstall is our most popular configuration. It is a scalable way to ensure that updates get installed quickly as they become available, regardless of when they are released. Please note that enabling autoinstall does not mean the Uptrack client itself is automatically upgraded. You will be notified via e-mail when a new Uptrack client is available, and it can be upgraded through your package manager.
If you'd like Ksplice Uptrack to automatically install updates as they become available, run:
sh install-uptrack YOUR_ACCESS_KEY --autoinstall 
in place of the above install-uptrack command, or set "autoinstall = yes" in your /etc/uptrack/uptrack.conf after installation. 
Note: Automatic updates
You can configure your systems to automatically install updates as they become available. To enable autoinstall, set autoinstall = yes in your /etc/uptrack/uptrack.conf, or pass the --autoinstall flag during installation. 
Autoinstall is our most popular configuration. It is a scalable way to ensure that updates get installed quickly as they become available, regardless of when they are released. 
Please note that enabling autoinstall does not mean the Uptrack client itself is automatically upgraded. You will be notified via e-mail when a new Uptrack client is available, and it can be upgraded through your package manager.
Question 8
Which two conditions should be met in order to successfully configure an openssh client on Oracle Linux?
  1. The openssh-server package must not be installed.
  2. The openssh package must be installed.
  3. The sshd daemon must not be started.
  4. The openssh-client package must be installed.
  5. The ssh-agent must be started.
  6. ssh keys must be generated by any user using the ssh client.
Correct answer: BD
Explanation:
To connect to an OpenSSH server from a client machine, you must have the openssh-clients and openssh packages installed on the client machine.
To connect to an OpenSSH server from a client machine, you must have the openssh-clients and openssh packages installed on the client machine.
Question 9
Which three settings are required to configure an openLdap to use directory service provided by Ldap.example.com?
  1. Set the LDAP Search Base DN and the LDAP server address and postin /etc/openldap/ldap.conf to: dc=example, dc = comldap://ldap.example.com:389
  2. Set LDAP Search Base DN and the LDAP server address and port in /etc/ldap.conf to: dc=example, dc=comldap://ldap.example.com:389
  3. Ensure that /etc/nsswitch.conf correctly references authentication priorities: passed: files ldapshadow: files ldapgroup: files ldap
  4. Ensure that the LDAP server name can be resolved.
  5. Ensure that DNS is used to resolve the LDAP server name.
Correct answer: ACE
Explanation:
A: The configuration file for the OpenLDAP libraries is /usr/local/etc/openldap/ldap.conf.C: In order to use LDAP naming services, you must also properly configure all LDAP client machines, in addition to modifying the nsswitch.confE: The client's domain name must be served by the LDAP server
A: The configuration file for the OpenLDAP libraries is /usr/local/etc/openldap/ldap.conf.
C: In order to use LDAP naming services, you must also properly configure all LDAP client machines, in addition to modifying the nsswitch.conf
E: The client's domain name must be served by the LDAP server
Question 10
Refer to the Exhibit. 
[root@server1 ~ # 1s -1 /usr/bin/passwd 
-r-x—x—x 1 root root 21200 oct 7 21:01 /usr/bin/passwd
[root@server1 ~] # 1s -1 /etc/shadow 
-r - - - - - - - - 1 root root 1818 Mar 7 10:31 /etc/shadow]
[root@server1 ~]# 
A user smith is on your system complained that he is not able to change his password. As the administrator, you long-listed the passwd command and the /etc/shadow file. 
View the Exhibit that shows the output. 
What must you do to enable this user to change his password?
  1. Set SGID on /usr/bin/passwd.
  2. Set SUID on /usr/bin/passwd.
  3. Set sticky bit on /usr/bin/passwd.
  4. Set read and write permission for others on /etc/shadow.
  5. Set permission on /etc/shadow to 600.
Correct answer: B
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