Download Oracle.1z0-100.CertKiller.2015-04-04.122q.vcex

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Exam Oracle Linux 5 and 6 System Administration
Number 1z0-100
File Name Oracle.1z0-100.CertKiller.2015-04-04.122q.vcex
Size 2 MB
Posted Apr 04, 2015
Download Oracle.1z0-100.CertKiller.2015-04-04.122q.vcex

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Demo Questions

Question 1

Which two statements are true concerning the installation and configuration of the bootloader by the Anaconda installer, which is then used to boot Oracle Linux?


  1. The Linux Loader (LILO) bootloader may be chosen for installation.
  2. The bootloader must be password protected and Anaconda prompts for a password in all cases.
  3. The Grand Unified Bootloader (GRUB) is the only bootloader used by Oracle Linux.
  4. If previously installed operating systems are found on disk partitions that were not overwritten, then an attempt is made to configure the bootloader to be able to boot them.
  5. The bootloader is installed by default in the first partition of the disk.
Correct answer: AE
Explanation:
A (not C): Linux boot process from hard drive: PC initializion phase - BIOS, POST. PC starts boot loader - usually grub or lilo. The bootloader locates kernel image on the hard drive. The kernel decompresses and loads itself. Once finished it tries to mount the root filesystem. 5. When the root filesystem is mounted, /sbin/init is executed and continues booting the system using inittab and / etc/rc*.d scripts
A (not C): Linux boot process from hard drive: 
  1. PC initializion phase - BIOS, POST. 
  2. PC starts boot loader - usually grub or lilo. 
  3. The bootloader locates kernel image on the hard drive. 
  4. The kernel decompresses and loads itself. Once finished it tries to mount the root filesystem. 5. When 
the root filesystem is mounted, /sbin/init is executed and continues booting the system using inittab and / etc/rc*.d scripts



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
Explanation:
Actual answer.
Actual answer.



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

You recently updated the strace package to the latest version as shown:
  
What is the outcome of running this command?


  1. It downgrades the strace package to version 4.5.19-1.6.e16.
  2. It downgrades strace package to version 4.5.19-1.11.e16_3.2.
  3. It fails with an error because you cannot downgrade a package using the yum command.
  4. It fails with an error because there are multiple versions available to which Yum can downgrade the strace package.
  5. It will prompt you to select a version of the strace package that you want to downgrade.
Correct answer: A



Question 5

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
Explanation:
reliable answer.
reliable answer.



Question 6

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 7

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 8

You have a single network adapter called eth0. 
DEVICE = eth0 
BOOTPROTO=DHCP 
HWADR=BC:305B:C5:63;F1
NM_CONTROLLED=no 
ONBOOT=YES 
TYPE=Ethernet 
PEERDNS=no 
UUID=C9dba2e8-9faf-4b77-bbe2-92dd81dda1f9 
Which two Statement:; are true concerning eth0 based on this configuration?


  1. DHCP is used to obtain a lease on an IP address.
  2. The dhclient command may only be used to obtain a lease at boot time.
  3. dhclient does not override the contents of /etc/resolv.conf.
  4. DNS is not used to resolve host names for this adapter.
  5. dhclient overrides the contents of /etc/resolv.conf.
Correct answer: AC
Explanation:
A: BOOTPROTO=DHCP C: PEERDNS=answerwhere answer is one of the following:yes -- Modify /etc/resolv.conf if the DNS directive is set. If using DHCP, then yes is the default. no -- Do not modify /etc/resolv.conf. Note: The "/etc/resolv.conf" file is used to configure the location of the DNS servers to be used for name resolution.
A: BOOTPROTO=DHCP 
C: PEERDNS=answer
where answer is one of the following:
yes -- Modify /etc/resolv.conf if the DNS directive is set. If using DHCP, then yes is the default. 
no -- Do not modify /etc/resolv.conf. 
Note: The "/etc/resolv.conf" file is used to configure the location of the DNS servers to be used for name resolution.



Question 9

Which four statements are true about the proc and sysfs filesystem?


  1. The sysfs filesystem contains information about processes.
  2. The proc filesystem contains information about CPUs.
  3. The proc filesystem contains information about memory.
  4. The sysfs filesystem contains information about CPUs.
  5. The sysfs filesystem contains information about memory.
  6. The proc filesystem contains information about the installer parameters.
Correct answer: ABCF
Explanation:
* sysfs is the Virtual Filesystem created during the 2.6 Kernel release cycle to show device information as procfs did not do this type of information that well. Memory etc has not been ported to sysfs as it was never intended to show that type of information so it is unlikely it will be ported at all. * sysfs is a virtual file system provided by Linux. Sysfs exports information about devices and drivers from the kernel device model to user space, and is also used for configuration.
* sysfs is the Virtual Filesystem created during the 2.6 Kernel release cycle to show device information as procfs did not do this type of information that well. 
Memory etc has not been ported to sysfs as it was never intended to show that type of information so it is unlikely it will be ported at all. 
* sysfs is a virtual file system provided by Linux. Sysfs exports information about devices and drivers from the kernel device model to user space, and is also used for configuration.



Question 10

You want sendmail to deliver mail for these users:
In which sendmail configuration database can this requirement be defined?


  1. /etc/aliases
  2. /etc/mail/userdb
  3. /etc/mail/virtusertable
  4. /etc/mail/domaintable
  5. /etc/mail/genericstable
Correct answer: C
Explanation:
/etc/mail/virtusertable This database file maps mail addresses for virtual domains and users to real mailboxes. These mailboxes can be local, remote, aliases defined in /etc/mail/aliases, or files. This allows multiple virtual domains to be hosted on one machine. The following example demonstrates how to create custom entries using that format:[email protected] root [email protected] [email protected] @example.com joe
/etc/mail/virtusertable 
This database file maps mail addresses for virtual domains and users to real mailboxes. These mailboxes can be local, remote, aliases defined in /etc/mail/aliases, or files. This allows multiple virtual domains to be hosted on one machine. 
The following example demonstrates how to create custom entries using that format:
@example.com joe









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