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2017 Jan 1Z0-821 practice test

Q51. - (Topic 2) 

Select the packet type that identifies members of the group and sends information to all the network interfaces in that group. 

A. Unicast 

B. Multicast 

C. Broadcast 

D. Bayesian 

E. Quality of Service Priority 

Answer:

Explanation: 

IPv6 defines three address types: 

unicast 

Identifies an interface of an individual node. 

multicast 

Identifies a group of interfaces,usually on different nodes. Packets that are sent to the 

multicast address go to all members of the multicast group. 

anycast 

Identifies a group of interfaces,usually on different nodes. Packets that are sent to the anycast address go to the anycast group member node that is physically closest to the sender. 


Q52. - (Topic 1) 

To help with your troubleshooting,you need to determine the version of the OBP. Which two commands will provide you with this information? 

A. printenv 

B. banner 

C. .version 

D. set-env 

E. show-devs 

F. value version 

Answer: B,C 

Explanation: 

B: banner 

Displays power-on banner. 

The PROM displays the system banner. The following example shows a 

SPARCstation 2 banner. The banner for your SPARC system may be different. 

SPARCstation 2,Type 4 Keyboard ROM Rev. 2.0,16MB memory installed,Serial # 289 Ethernet address 8:0:20:d:e2:7b,Host ID: 55000121 

C: .version 

Displays version and date of the boot PROM. 

Note: OBP-OpenBootProm is a firmware which is placed on the sun 

machine's prom chip. 

It is a os independent user interface to deal with the sun machine's hardware components. 

The user interface provides one or more commands to display system information. 


Q53. - (Topic 1) 

You are planning group names for a new system. You decide to use a numbering convention that includes the year and month the project began,to form the group number and name for work associated with that project. 

So,for example,a project targeted to begin in January,2013 would have the number (name): 

201301(Pr20l301) 

What are the two problems with your plan? 

A. Group names may not contain a numeric character 

B. Group names may be no longer than 7 characters. 

C. Group numbers should not be larger than 60000. 

D. Group names should be all lowercase. 

Answer: C,D 

Explanation: 

C: The Group ID (GID) field contains the group's numerical ID. GIDs can be assigned whole numbers between 100 and 60000. 

D: Group names contain only lowercase characters and numbers. 

Topic 2, Volume B 


Q54. - (Topic 2) 

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 

Answer:

Explanation: 

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. 


Q55. - (Topic 2) 

Which five statements describe options available for installing the Oracle Solaris 11operating system using the installation media? 

A. You can perform a text or LiveCD installation locally or over the network. 

B. The text Installer does not install the GNOME desktop. The GNOME desktop package must he added after you have installed the operating system. 

C. The LiveCD Installation cannot be used to install multiple instances of Oracle Solaris. 

D. The LiveCD installer cannot be used if you need to preserve a specific Solaris Volume Table of Contents (VTOC) slice in your current operating system. 

E. The LiveCD Installer is for x86 platforms only. 

F. The GUI installer cannot be used to upgrade your operating system from Solaris 10. 

G. If you are installing Oracle Solaris 11 on an x86-based system that will have more than one operating system installed in it,you cannot partition your disk during the installation process. 

H. The LiveCD installer can be used for SPARC or x86 platforms. 

Answer: A,B,D,F,H 

Explanation: 

A: If the network is setup to perform automated installations,you can perform a text installation over the network by setting up an install service on the network and selecting a text installation when the client system boots. 

B: After a fresh install of Solaris 11 express,only the console mode is activated. 

To add Gnome,simply do : 

$ sudo pkg install slim_install 

This will install additional packages that are not installed by default. 

D: The text installer advantages over the GUI installer include: 

* In addition to modifying partitions,the text installer enables you to create and modify VTOC slices within the Solaris partition. 

F: How do I upgrade my Solaris 10 or lower systems to Solaris 11? 

Unfortunately,you CAN'T. There is no direct upgrade installer or other tool that will allow you to upgrade from earlier releases of Solaris to Solaris 11. This is primarily due to the vast changes in the packaging mechanism in Solaris 10. 


Renewal 1Z0-821 free question:

Q56. - (Topic 2) 

A user on the system has started a process,but it needs to be terminated. 

The process ID was determined as follows: 

pgrep userprogram 

l5317 

The user attempted to terminate the program as follows: 

pkill 15317 

This command runs without an error message,and the process continues to run. 

What is the issue? 

A. You need to run the pkill command with the process name. 

B. You need to switch to super user to kill the process. 

C. You need to run the ps command to get more information. 

D. You need to run the prstat command to get more information. 

Answer:

Explanation: 

You can use the pgrep and pkill commands to identify and stop command processes that you no longer want to run. These commands are useful when you mistakenly start a process that takes a long time to run. 

To terminate a process: 

Type pgrep to find out the PID(s) for the process(es). 

Type pkill followed by the PID(s). 

You can kill any process that you own. Superuser can kill any process in the system except for those processes with process IDs of 0,1,2,3,and 4. Killing these processes most likely will crash the system. 


Q57. - (Topic 2) 

You need to set up an Oracle Solaris 11 host as an iSCSI target so that the host's disk can be accessed over a storage network. The disk device is c3t4d0. 

Which six options describe the steps that need to be taken on this host to enable an iSCSI target? 

A. Create a ZFS file system named iscsi/target. 

B. Create a zpool named iscsi with disk device c3t4d0 

C. Create zfs volume named iscsi/target. 

D. Use the stmfadm command to create a LUN using /dev/zvol/rdsk/iscsi/target. 

E. Use the stmfadm command to create a LUN using iscsi/target. 

F. Use the stmfadm command to make the LUN viewable. 

G. Use the stmfadm command to make the volume viewable. 

H. Enable the svc:/network/iscsi/target:default Service. 

I. Use the itadm command to create the iSCSI target. 

Answer: B,C,D,F,H,I 

Explanation: 

How to Create an iSCSI LUN 

The following steps are completed on the system that is providing the storage device. 

Example: target# zpool create sanpool mirror c2t3d0 c2t4d0 

(C)2. Create a ZFS volume to be used as a SCSI LUN. 

 (D)3. Create a LUN for the ZFS volume. 

Example: 

target# stmfadm create-lu /dev/zvol/rdsk/sanpool/vol1 

Logical unit created: 600144F0B5418B0000004DDAC7C10001 

4. Confirm that the LUN has been created. 

Example 

target# stmfadm list-lu 

LU Name: 600144F0B5418B0000004DDAC7C10001 

 (F) 5. Add the LUN view. 

This command makes the LUN accessible to all systems. 

target# stmfadm add-view 600144F0B5418B0000004DDAC7C10001 

How to Create the iSCSI Target 

This procedure assumes that you are logged in to the local system will contains the iSCSI 

target. 

Note: The stmfadm command manages SCSI LUNs. Rather than setting a special iSCSI 

property on the ZFS volume,create the volume and use stmfadm to create the LUN. 

 (H)

 1. Enable the iSCSI target service. 

target# svcadm enable -r svc:/network/iscsi/target:default 

 (I)

 2. Create the iSCSI target. 

target# itadm create-target 


Q58. - (Topic 1) 

Which two accurately identify features of a Solaris 10 branded zone? 

A. executes in a Solaris 10 global zone 

B. is created by importing a Solaris 10 flash archive 

C. enables Linux binary applications to run unmodified 

D. provides a complete runtime environment for Solaris 9 applications 

E. allows a Solaris 10 global zone to be migrated into a Solaris 10 non-global zone on a Solaris 11 system 

Answer: B,E 

Explanation: 

B: It can be created by importing a Solaris 10 flash archive. 

You can use the Oracle Solaris Flash archiving tools to create an image of an installed 

system that can be migrated into a zone. 

The system can be fully configured with all of the software that will be run in the zone before the image is created. This image is then used by the installer when the zone is installed. 

Note: You can use alternate methods for creating the archive. The installer can accept the following archive formats: 

*

 cpio archives 

*

 gzip compressed cpio archives 

*

 bzip2 compressed cpio archives 

*

 pax archives created with the -x xustar (XUSTAR) format . ufsdump level zero (full) backups 

Note: 

Branded zones that run an environment different that the OS release on the system 

*

 The lx branded zone introduced in the Solaris 10 8/07 release provides a Linux environment for your applications and runs on x86 and x64 machines on the Oracle Solaris 10 OS. 

*

 The solaris8 and solaris9 branded zones enable you to migrate an Oracle Solaris 8 or Oracle Solaris 9 system to an Oracle Solaris 8 or Oracle Solaris 9 Container on a host running the Oracle Solaris 10 8/07 Operating System or later Oracle Solaris 10 release. 

*

 The Oracle Solaris 10 Container brand is available in OpenSolaris build 127. These branded zones host Oracle Solaris 10 user environments. 

Note: One of the powerful features of Solaris 11 is the ability to run a Solaris 10 environment in a zone. Solaris 10 allows you to run Solaris 8 and 9 environments in zones,but only on SPARC. 


Q59. - (Topic 1) 

Which two options accurately describe the network characteristics of a zone? 

A. DHCP address assignment cannot be configured in a shared IP zone. 

B. Shared IP is the default type of network configuration. 

C. Exclusive IP is the default type of network configuration. 

D. By default,all IP addresses,netmasks,and routes are set by the global zone and cannot be altered in a non global zone. 

E. IPMP cannot be managed within the non-global zone. 

F. Commands such as snoop and dladm cannot be used on datalinks that are in use by a running zone. 

Answer: A,B 

Explanation: 

A: Non-global zones can not utilize DHCP (neither client nor server). 

B (not C): By default,non-global zones will be configured with a shared IP functionality. 

What this means is that IP layer configuration and state is shared between the zone you’re 

creating and the global zone. This usually implies both zones being on the same IP subnet 

for each given NIC. 

Note: A zone is a virtual operating system abstraction that provides a protected environment in which applications run. The applications are protected from each other to provide software fault isolation. To ease the labor of managing multiple applications and their environments,they co-exist within one operating system instance,and are usually managed as one entity. 

The original operating environment,before any zones are created,is also called the "global zone" to distinguish it from non-global zones,The global zone is the operating system instance. 

Incorrect answer: 

E: Exclusive-IP zones can use IPMP. IPMP is configured the same way in an exclusive-IP 

zone as it is on a system not using zones. 

For shared-IP zones,IPMP can be configured in the global zone. 

F: Full IP-level functionality is available in an exclusive-IP zone. 

An exclusive-IP zone has its own IP-related state. 

An exclusive-IP zone is assigned its own set of data-links using the zonecfg command. The 

zone is given a data-link name such as xge0,e1000g1,or bge32001,using the physical 

property of the net resource. The address property of the net resource is not set. 

Note that the assigned data-link enables the snoop command to be used. 

The dladm command can be used with the show-linkprop subcommand to show the assignment of data-links to running exclusive-IP zones. 


Q60. - (Topic 2) 

You notice that the /var/.dm/messages file has become very large. Typically,this is managed by a crontab entry. Which entry should be in the root's crontab file? 

A. 10 3 * * * /usr/adm/messages 

B. 10 3 * * * /usr/sbin/logadm 

C. 10 3 * * * /usr/sbin/syslogrotate 

D. 10 3 * * * /usi/sbin/logrotate 

E. 10 3 * * * /usr/sbin/messages 

Answer:

Explanation: 

This example shows how to display the default root crontab file. 

$ suPassword: 

# crontab -l #ident "@(#)root 1.19 98/07/06 SMI" /* SVr4.0 1.1.3.1 */ # # The root crontab should be used to perform accounting data collection. # # 10 3 * * * /usr/sbin/logadm 15 3 * * 0 /usr/lib/fs/nfs/nfsfind 30 3 * * * [ -x /usr/lib/gss/gsscred_clean ] && /usr/lib/gss/gsscred_clean #10 3 * * * /usr/lib/krb5/kprop_script ___slave_kdcs___