Oracle Oracle Certifications 1Z0-821 Questions & Answers

• Question 81:

  You are going to use the- Automated installer (AI) to install a non global zone named zone1. You have created a custom manifest for the non-global zone and named it zone1manifest

  Which command will you use to add this custom manifest to the s11-sparc install service and associate this custom manifest with the non-global zone?

  A. installadm create-profile -n s11-sparc -f /tmp/zone1manifest.xml - c

  B. installadm create-manifest -n s11-sparc -f /tmp/zone1manifest.xml -m

  C. installadm create-client -n s11-sparc -f /tmp/zone1manifest.xml -m zone1manifest -c zonename= "zone1"

  D. installadm create-service - n s11-sparc -f /tmp/zone1manifest.xml -m zone1manifest - c zonename="zone1"

  Correct Answer: B

  installadm add-manifest

  Associates manifests with a specific install service, thus making the manifests available on the network, independently from creating a service. When publishing a non-default manifest, it is required to associate criteria either via criteria entered on the command line (-c) or via a criteria XML file (-C).

• Question 82:

  You are the administrator for a group of shell script developers. They use vi, and have asked you to make their scripts automatically executable when they save their files.

  How can this be accomplished?

  A. Enter set -o vi on the command line, or include it in each user's startup script.

  B. Enter umask -s on the command line, or include it in each user's startup script.

  C. Enter umask 000 on the command line, or include it in each user's startup script.

  D. Enter umask 777 on the command line, or include it in each user's startup script.

  E. It is not possible to automatically set the execute bit on with the umask setting, or vi option.

  F. Enter umask 766 the command line, or include it in the global startup script for the default shell.

  Correct Answer: E

  Unlike DOS, which uses the file extension to determine if a file is executable or not, UNIX relies on file permissions. The value assigned by umask is subtracted from the default. User's file creation mask. umask sets an environment variable which automatically sets file permissions on newly created files. i.e. it will set the shell process's file creation mask to mode.

  umask 000 would grant full permissions.

  Note: 777 full permissions

• Question 83:

  You are installing the Oracle Solaris 11 Operating System by using the Text Installer. Which two options describe the features associated with the Text Installer?

  A. It can be used to install only SPARC systems.

  B. It installs gnome as the default user environment on a system capable of displaying a graphical environment.

  C. You can choose whether root is a role or user account.

  D. You can do both automatic and manual configuration of the network.

  E. You can select how to configure the remaining network interfaces.

  Correct Answer: CD

• Question 84:

  Your users are experiencing delay issues while using their main application that requires connections to remote hosts. You run the command uptime and get the flowing output:

  1:07am up 346 day(s), 12:03, 4 users, load average: 0.02, 0.02, 0.01

  Which command will be useful in your next step of troubleshooting?

  A. ipadm

  B. traceroute

  C. dladm

  D. snoop

  E. arp

  Correct Answer: B

  Test the remote connection with traceroute.

  The Internet is a large and complex aggregation of network hardware, connected together by gateways. Tracking the route one's packets follow (or finding the miscreant gateway that's discarding your packets) can be difficult. traceroute utilizes the IP protocol `time to live' field and attempts to elicit an ICMP TIME_EXCEEDED response from each gateway along the path to some host.

  This program attempts to trace the route an IP packet would follow to some internet host by launching UDP probe packets with a small ttl (time to live) then listening for an ICMP "time exceeded" reply from a gateway.

• Question 85:

  Your task is to convert a JumpStart sysidcfg file to an Automated Installer (AI) sc_profile.xml file, using js2ai.

  Select two unsupported items that will require changes.

  A. terminal = zterms

  B. name_service-NTS+

  C. timezone=US/pacific

  D. system_locale=en_US

  E. network_interface=PRIMARY

  F. root_password=rJmvLUXM10cU

  Correct Answer: AD

  A: terminal The js2ai tool does not perform any translation. Make sure the terminal type speciied in the sysidcfg ile is supported in Oracle Solaris 11.

  D: system_locale The js2ai tool does not perform any translation. Make sure the locale specified in the sysidcfg ile is supported in Oracle Solaris 11.

• Question 86:

  You are troubleshooting interface net3 and you enter the following sequence of commands:

  

  Your next command should be:

  A. ipadm up-addr net3/v4

  B. ipadm enable-if -T net3

  C.

  D. ipadm create-ip -T static -a 192.168.1.25/24 -n net3

  E. ipadm create-addr -T static -a 192.168.1.25/24 net3

  Correct Answer: E

  If you are assigning a static IP address, use the following syntax:

  # ipadm create-addr -T static -a address addrobj

  where addrobj uses the naming format interface/user-defined-string, such as e1000g0/v4globalz.

  Note:

  create-addr [-t] -T static [-d] -a {local | remote}=addr[/prefixlen], ... addrobj Creates a static IPv4 or IPv6

  address on the interface specified in addrobj. If the interface on which the address is created is not

  plumbed, this subcommand will implicitly plumb the interface. The created static address will be identified

  by addrobj. By default, a configured address will be marked up, so that it can be used as a source or

  destination of or for outbound and inbound packets.

• Question 87:

  user1 has a disk quota of 0.5 MB. The user attempts to run the following command on a file called .bigfile that is 495 KB in size:

  cp bigfile /tmp

  Will the command execute successfully?

  A. Yes. Quotas do not include any of the system files such as /tmp /swap.

  B. Yes. The quota is set at the directory level, not the user level.

  C. No. The command will fail because it will cause him to exceed his user quota.

  D. No. A user cannot place files into the /tmp directory.

  Correct Answer: A

  UFS quotas enable system administrators to control the size of file systems. Quotas limit the amount of disk space and the number of inodes, which roughly corresponds to the number of files, that individual users can acquire. For this reason, quotas are especially useful on the file systems where user home directories reside. As a rule, the public and /tmp file systems usually do not benefit significantly by establishing quotas.

  Note: The cp command copies files and directories.

• Question 88:

  View the Exhibit.

  

  The file came from your Automated Installer (AI) install server. The file is ____________.

  A. An AI SC profile for non-global zones

  B. The default AI conf ig file for non-global zones

  C. The default AI manifest for non-global zones

  D. A custom AI manifest

  Correct Answer: D

  ai_manifest

  -Automated installation manifest file format

  Synopsis /usr/share/install/ai.dtd.1

  Some customizations have been made, such as the selection of specific locales.

• Question 89:

  You log in to the system as user1, then switch user to root by using the su - command. After entering the

  correct password, yon enter the following commands:

  whoami;who am i;id

  Which option correctly represents the output?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: B

  *

  The whoami utility displays your effective user ID as a name.

  Here this would be root.

  *

  who am i

  The command who shows who is logged on.

  Here this would be:

  user1 console Dec 30 20:20

  *

  The id utility displays the user and group names and numeric IDs, of the calling process, to the standard

  output. If the real and effective IDs are different, both are displayed, otherwise only the real ID is displayed.

  Here this would be:

  uid=0(root) gid=0(root)

  Note:

  Each UNIX proces has 3 UIDs associated to it. Superuser privilege is UID=0.

  Real UID

  This is the UID of the user/process that created THIS process. It can be changed only if the running process has EUID=0.

  Effective UID This UID is used to evaluate privileges of the process to perform a particular action. EUID can be change either to RUID, or SUID if EUID!=0. If EUID=0, it can be changed to anything.

  Saved UID

  If the binary image file, that was launched has a Set-UID bit on, SUID will be the UID of the owner of the file. Otherwise, SUID will be the RUID.

• Question 90:

  Which modification needs to be made to the Service Management Facility before you publish a new package to the IPS repository?

  A. The pkg.depotd must be disabled.

  B. The pkg/readonly property for the application/pkg/server service must be set to false.

  C. The Pkg/writabie_root property for the application/Pkg/server service must be set to true.

  D. The pkg/image.root property for the application/pkg/server service must be set to the location of the repository.

  Correct Answer: D

  pkg/image_root

  (astring) The path to the image whose file information will be used as a cache for file data.