Download Oracle.1z0-100.ActualTests.2021-12-23.88q.vcex

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Exam Oracle Linux 5 and 6 System Administration
Number 1z0-100
File Name Oracle.1z0-100.ActualTests.2021-12-23.88q.vcex
Size 788 KB
Posted Dec 23, 2021
Download Oracle.1z0-100.ActualTests.2021-12-23.88q.vcex

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Demo Questions

Question 1

Which statements is true concerning Oracle Linux configuration files for users and groups?


  1. The /etc/passwd file contains hashed passwords for each user.
  2. The /etc/shadow file contains hashed passwords for each user.
  3. The GECOS field in /etc/passwd file may be empty.
  4. The /etc/group file contains the group name and the hashed group password.
Correct answer: B
Explanation:
/etc/shadow file stores actual password in encrypted (one-way hashed) format for user's account with additional properties related to user password i.e. it stores secure user account information
/etc/shadow file stores actual password in encrypted (one-way hashed) format for user's account with additional properties related to user password i.e. it stores secure user account information



Question 2

This MDADM output:
  
     
Which two aspects can be determined from this output?


  1. A device failed and has been removed from this RAID set.
  2. It is no longer possible to write to this RAID set.
  3. Read and write performance is no longer optimal on this RAID set.
  4. This RAID set was built without a spare device.
  5. Only Write performance is no longer optimal on this RAID set.
Correct answer: AD



Question 3

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 4

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 5

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 6

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 7

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 8

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 9

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 statements 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=DHCPC: 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 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:









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