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QUESTION 1
Which three actions would be helpful in determining the cause of a node reboot?
A. determining the time of the node reboot by using the uptime command and subtracting the up time from the current system time
B. looking for messages such as “Oracle CSSD failure. Rebooting for cluster integrity” in /var/log/ messages
C. using the crsctl command to view tracing information
D. inspecting the ocssd log for “Begin Dump” or “End Dump” messages
E. inspecting the database alert log for reboot messages
Correct Answer: ABD Explanation

Explanation/Reference:
Determining Which Process Caused Reboot

First, determine the time of the node reboot by using the uptime command and subtracting the up time from the current system time. The reboot time will be used when examining log files. When the OCSSD daemon is responsible for rebooting a node, a message similar to “Oracle CSSD failure. Rebooting for cluster integrity” is written into the system messages log at /var/log/messages. The cssd daemon log file that is located at <Grid_Home>/log/<hostname>/cssd/ocssd.log may also contain messages similar to “Begin Dump” or “End Dump” just before the reboot. If hangcheck-timer is being used, it will provide message logging to the system messages log when a node restart is initiated by the module. To verify whether this process was responsible for the node reboot, examine the /var/log/messages file and look for an error message similar to: “Hangcheck: hangcheck is restarting the machine.” Other useful log files include the Clusterware alert log in <Grid_home>/log/<hostname> and the lastgasp log in /etc/oracle/lastgasp or /var/opt/oracle/lastgasp. If no indication of which process caused the reboot can be determined from these files, additional debugging and tracing may need to be enabled.
Note: The oclsomon and the oprocd background processes have been eliminated in Oracle Database 11g Release 2.
D60488GC11 Oracle 11g: RAC and Grid Infrastructure Administration Accelerated 6 – 21

QUESTION 2
After Oracle Grid Infrastructure has been installed, you should take a few moments to verify the installation. Which two actions would be useful in verifying the installation?
A. Run the crsctl status resource t command to confirm that all necessary cluster resources are online.
B. Use the operating system utilities to verify that your SCAN addresses are being properly resolved.
C. Start Oracle Enterprise Manager and check all monitored targets.
D. Run the cluvfy comp nodecon n all verbose command to verify the entire Grid Infrastructure installation.
Correct Answer: AB Explanation

Explanation/Reference:
Explanation:
Verifying the Grid Infrastructure Installation
Execute the crsctl command as shown in the slide to confirm that all cluster resources are up and running.
[email protected] ~]# /u01/app/11.2.0/grid/bin/crsctl stat res -t In addition, you should confirm that your
DNS is properly forwarding address requests for your application and SCAN VIPs to your GNS and that
they are resolved properly. You can do this with dig. Execute the dig command with DNS and VIP
addresses as shown:
# dig @myDNS.example.com racnode01-cluster01.example.com …
;; QUESTION SECTION:
;racnode01-vip.cluster01.example.com. IN A
;; ANSWER SECTION:
racnode01-vip.cluster01.example.com. 120 IN A

192.0.2.103 … # dig @myDNS.example.com cluster01-scan.cluster01.example.com … ;; QUESTION SECTION: ;cluster01-scan.cluster01.example.com. IN A ;; ANSWER SECTION: cluster01-scan.cluster01.example.com. 120 IN A 192.0.2.248 cluster01-scan.cluster01.example.com. 120 IN A 192.0.2.253 cluster01-scan.cluster01.example.com. 120 IN A 192.0.2.254 D60488GC11 Oracle 11g: RAC and Grid Infrastructure Administration Accelerated 2 44

QUESTION 3
Which two network addresses are required to be static, non-dhcp addresses when using the Grid Naming?
A. GNS VIP Address
B. SCAN VIP Address
C. Node VIP Address
D. Node Public Address
E. Node Private Address

Correct Answer: AD Explanation
Explanation/Reference:
2.6.2 IP Address Requirements Before starting the installation, you must have at least two network adapters configured on each node: One for the private IP address and one for the public IP address. You can configure IP addresses with one of the following options: Dynamic IP address assignment using Oracle Grid Naming Service (GNS). If you select this op- tion, then network administrators assign static IP address for the physical host name and dynam- ically allocated IPs for the Oracle Clusterware managed VIP addresses. Oracle. Grid Infrastructure Installation Guide
Implementing GNS To implement GNS, you must collaborate with your network administrator to obtain an IP ad- dress on the public network for the GNS VIP. DNS uses the GNS VIP to forward requests for ac- cess to the cluster to GNS. You must also collaborate with your DNS administrator to delegate a domain to the cluster. This can be a separate domain or a subdomain of an existing domain. The DNS server must be configured to forward all requests for this new domain to the GNS VIP. Since each cluster has its own GNS, it must be allocated a unique domain of which to be in con- trol. Oracle. Clusterware Administration and Deployment Guide
QUESTION 4
You are in the planning stages for upgrading your Oracle RAC database from Oracle Database 10g Release 2 to Oracle Database 11g Release 2 to run under the Oracle Grid Infrastructure. You decide to use an administrator-managed configuration because the cluster is fairly small. Which statement is correct about this configuration?
A. A parent pool of the GENERIC server pool will be used.
B. You must define a new server pool called MANUAL.
C. A subpool of the GENERIC server pool will be used.
D. A subpool of the FREE server pool will be used.
Correct Answer: C Explanation

Explanation/Reference:
With Oracle RAC 11g Release 2, there is only a database resource define to Oracle Clusterware. This resource will contain the Oracle Home, the spfile, the server pool(s) and the ASM diskgroup(s) required for the database. The database resource will have a weak start dependency on the VIP which means it will try to start the VIP for the node when the instance starts however if the VIP does not start successfully, the instance will still be started. When reviewing the data- base resource for an administrator Managed database, you will see a server pool defined with the same name as the Oracle database. This pool will be part of a special Oracle defined server pool called Generic. The Generic server pool is managed by Oracle to support Administrator Man- aged databases. The server pools that are part of Generic will be automatically created or re- moved when you add or remove an Administrator Managed database. Oracle Database 11gR2 Upgrade Companion (Version 2.70)
QUESTION 5
The Instance Initialization parameters are set to:
DB_CREATE_FILE_DEST = +DATA DB_CREATE_ONLlNE_LOG_DEST_l = +LOGS DB_CREATE_ONLlNE_LOG_DEST_2 = + FRA
The SQL* Plus command “ALTER DATABASE ADD LOGFILE;” will create:
A. a new log file in the +DATA disk group, or a log file in the + FRA disk group, if +DATA is not available
B. a new log file in the +DATA disk group and a log file in the + FRA disk group
C. a new log file in the +LOGS disk group and a log file in the + FRA disk group
D. a new log file in the +LOGS disk group, or a log file in the +FRA dls* available
E. a new log file in the +DATA disk group, a log file in the +LOGS disk group, and a log file in the +FRA disk group
F. a new log file in the +LOGS disk group, or a log file in the +FRA disk group, if +LOGS is not available
Correct Answer: C Explanation

Explanation/Reference:
The following table lists the initialization parameters that enable the use of Oracle Managed Files. Initialization Parameter DB_CREATE_FILE_DEST Defines the location of the default file system directory or Oracle ASM disk group where the database creates datafiles or tempfiles when no file specification is given in the create operation. Also used as the default location for redo log and control files if DB_CREATE_ONLINE_LOG_DEST_n are not specified.
DB_CREATE_ONLINE_LOG_DEST_n Defines the location of the default file system directory or Oracle ASM disk group for redo log files and control file creation when no file specification is given in the create operation. By changing n, you can use this initialization parameter multiple times, where n specifies a multiplexed copy of the redo log or control file. You can specify up to five multiplexed copies.
DB_RECOVERY_FILE_DEST Defines the location of the Fast Recovery Area, which is the default file system directory or Oracle ASM disk group where the database creates RMAN backups when no format option is used, archived logs when no other local destination is configured, and flashback logs. Also used as the default location for redo log and control files or multiplexed copies of redo log and control files if DB_CREATE_ONLINE_LOG_DEST_n are not specified. Oracle. Database Administrator’s Guide
QUESTION 6
Which three statements define a cluster?
A. is a group of independent, but interconnected computers that act as a single system
B. can be deployed to increase availability and performance
C. can be deployed to balance a dynamically changing workload
D. should appear to an application as multiple servers
Correct Answer: ABC Explanation

Explanation/Reference:
Oracle Real Application Clusters Oracle Real Application Clusters (Oracle RAC) is a database clustering technology whose shared storage capabilities allow multiple machines to work in parallel on the same data, reducing processing time significantly. Oracle RAC also offers resilience, al- lowing processing to continue in the event of one or more machines being unavailable be- cause of planned or unplanned downtime. Computer cluster A computer cluster consists of a set of loosely connected computers that work together so that in many respects they can be viewed as a single system. The components of a cluster are usually connected to each other through fast local area networks, each node running its own instance on an operating system. Computer clusters emerged as a result of convergence of a number of computing trends including the avail- ability of low cost microprocessors, high speed networks, and software for high perform- ance distributed computing. Clusters are usually deployed to improve performance and availability over that of a single computer, while typically being much more cost-effective than single computers of comparable speed or availability
QUESTION 7
You want to create an ACFS on an ADVM volume using a shell script and the appropriate command-line utilities. These are the requirements:
1.
The dynamic volume file must use space in the VOLFILE disk group with a size of 500 M and be called prodvol.

2.
The mount point called /acfs already exists.
Which four steps must be performed to achieve this?
A. As the Grid Infrastructure owner, run mount -t acfs /dev/asm/prodvol-417 /acfs to mount the file system.
B. As the Grid Infrastructure owner, run asmcmd volinfo -d volfile prodvol to determine the volume information.
C. As the Grid Infrastructure owner, run asmcmd volcreate -d volfile -s 500M prodvol to create the volume file.
D. As the Grid Infrastructure owner, run mkfs -t acfs /dev/asm/prodvol-417 to create the file system.
E. As root, run mount -t acfs /dev/asm/prodvol-417 /acfs to mount the file system.
F. As root, run mkfs -t acfs /dev/asm/prodvol-417 to create the file system.
Correct Answer: BCEF Explanation

Explanation/Reference:
Explanation:
Creating an ACFS Volume
Create the volume:

$ asmcmd volcreate -G DATA -s 100M testvol
View the volume information: $ asmcmd volinfo -G DATA testvol
Make a mount point directory: $ mkdir /u01/app/oracle/acfsdata/testvol
Make the file system (as root): # mkfs -t acfs /dev/asm/testvol-403
Mount the file system to the mount point: # mount -t acfs /dev/asm/testvol-403 \ /u01/app/oracle/acfsdata/testvol
D60488GC11 Oracle 11g: RAC and Grid Infrastructure Administration Accelerated 10 – 13 Create a file system with the Oracle ACFS mkfs command. Create a file system using an existing volume device.
For example: $ /sbin/mkfs -t acfs /dev/asm/volume1-123 mkfs.acfs: version = 11.2.0.1.0.0 mkfs.acfs: on-disk version = 39.0 mkfs.acfs: volume = /dev/asm/volume1-123 mkfs.acfs: volume size = 10737418240 mkfs.acfs: Format complete. See “mkfs” (Linux or UNIX) or “acfsformat” (Windows). The root privilege is not required. The ownership of the volume device file dictates who can run this command.
Oracle. Automatic Storage Management Administrator’s Guide 11g Release 2 (11.2)
QUESTION 8
Some new non-ASM shared storage has been made available by the storage administrator, and the Oracle Grid Infrastructure administrator decides to move the voting disks, which do not reside in ASM, to this new non-ASM location. How can this be done?
A. by running crsctl add css votedisk <path_to_new_location> followed by crsctl delete css votedisk <path_to_old_location>
B. by running crsctl replace css votedisk <path_to_old_location,path_to_new_location>
C. by running srvctl replace css votedisk <path_to_old_location, path_to_new_location>
D. by running srvctl add css votedisk <path_to_new_location> followed by srvctl delete css votedisk <path_to_old_location>

Correct Answer: A Explanation
Explanation/Reference:
Explanation:
Adding, Deleting, or Migrating Voting Disks

Modifying voting disks that are stored in Oracle ASM To migrate voting disks from Oracle ASM to an
alternative storage device, specify the path to the non-Oracle
ASM storage device with which you want to replace the Oracle ASM disk group using the following
command:
$ crsctl replace votedisk path_to_voting_disk
You can run this command on any node in the cluster.

To replace all voting disks not stored in Oracle ASM with voting disks managed by Oracle ASM in an
Oracle
ASM disk group, run the following command:
$ crsctl replace votedisk +asm_disk_group

Modifying voting disks that are not stored on Oracle ASM:

To add one or more voting disks, run the following command, replacing the path_to_voting_disk variable
with one or more space-delimited, complete paths to the voting disks you want to add:
$ crsctl add css votedisk path_to_voting_disk […]
To replace voting disk A with voting disk B, you must add voting disk B, and then delete voting disk A. To
add a new disk and remove the existing disk, run the following command, replacing the
path_to_voting_diskB variable with the fully qualified path name of voting disk B:
$ crsctl add css votedisk path_to_voting_diskB -purge The -purge option deletes existing voting disks.
To remove a voting disk, run the following command, specifying one or more space-delimited, voting disk
FUIDs or comma-delimited directory paths to the voting disks you want to remove:
$ crsctl delete css votedisk {FUID | path_to_voting_disk[…]} Oracle. Clusterware Administration and
Deployment Guide 11g Release 2 (11.2)

QUESTION 9
Which three statements are true about using RMAN with ASM?
A. RMAN is the only supported method to back up database files stored in ASM.
B. RMAN is the only supported method to back up ACFS files.
C. RMAN can use ASM storage for backups.
D. RMAN cannot use ASM storage for backups.
E. Using RMAN, database files can be migrated to ASM from a file system.
F. Using RMAN, database files cannot be moved from ASM to a file system
Correct Answer: ACE Explanation

Explanation/Reference:
RMAN is also critical to Automatic Storage Management (ASM). Since ASM is critical to GRID operations, RMAN is then critical for GRID based systems. In ASM, RMAN is responsible for tracking the ASM filenames and for performing the deletion of obsolete ASM files. ASM files cannot, however, be accessed through normal operating system in- terfaces; therefore, RMAN is the preferred means of copying ASM files. It is also pos- sible to use FTP through XDB, but generally, RMAN will be less complex. It is import-ant to learn to use RMAN first because RMAN is the only method for performing backups of a database containing ASM files. Setting Initialization Parameters for ASM The procedure for creating a duplicate database to an ASM location is similar to the pro- cedure described in “Settings and Restrictions for OMF Initialization Parameters” on page 25-4. The difference is that you must identify the initialization parameters that con- trol the location where files are created and set these parameters to an ASM disk group. For example, set DB_CREATE_FILE_DEST, DB_CREATE_ONLINE_DEST_n,and CONTROL_FILES to +DISK1. To take advantage of Automatic Storage Management (ASM) with an existing database you must migrate that database into ASM. This migration is performed using Recovery Manager (RMAN) even if you are not using RMAN for your primary backup and recov- ery strategy. Oracle. Database Backup and Recovery Advanced User’s Guide
QUESTION 10
Which two statements are true about ACFS snapshots?
A. They can be created for ACFS file systems only if the ASM disk group hosting the ADVM volume file used by the file system has free space available.
B. They can be created for ACFS file systems only if the ADVM volume file used by the file system has free space available.
C. They can be created only if the ASM disk group hosting the ADVM volume used by the file system has no other ASM files contained in the disk group.
D. They can be created when ACFS is used both on clusters and on stand-alone servers.
E. They are accessible only on the cluster node that was used when creating the snapshot.
Correct Answer: BD Explanation

Explanation/Reference:
Explanation: About Oracle ACFS Snapshots Oracle ACFS snapshot storage is maintained within the file system, eliminating the management of separate storage pools for file systems and snapshots. Oracle ACFS file systems can be dynamically resized to accommodate additional file and snapshot storage requirements. Oracle. Automatic Storage Management Administrator’s Guide 11g Release 2 (11.2)
QUESTION 11
Your cluster Is subject to a service-level agreement that allows for little scheduled down time You want to use patching and maintenance methods that permit the Oracle Grid Infrastructure and Oracle RAT Databases to be available as much as possible. Which two techniques will work some or all of the time to provide you with minimum down time?
A. rolling upgradeable and in place patch sets
B. idling upgradeable and out of place patch bundles
C. rolling upgradeable and out of place patch sets
D. rolling upgradeable and in place patch bundles
E. rolling upgradeable and out of place one-off patches
Correct Answer: CD Explanation

Explanation/Reference:
A rolling upgrade process allows one or more nodes in the cluster to have a different soft- ware version than the other nodes in the cluster for a short period of time. During the time period where cluster nodes have different software versions, the cluster is fully func- tional, but some administrative functions are disabled until the upgrade has completed, for example, adding new cluster resources. An out-of-place patch set installation with cloning has the following advantages: Applications remain available while software is upgraded in the new ORACLE_HOME. The configuration inside the ORACLE_HOME is retained because the cloning procedure involves physically copying the software In-place upgrade You install the patch set into an existing Oracle home location. Oracle recommends that you select this option only if you do not have sufficient free disk space to perform an out-of-place upgrade, as the upgrade removes the existing Oracle installation. This patch option requires less disk space, but requires more time, and is riskier, because if you encounter an installation failure, then you must recover the entire existing Oracle home from a backup
QUESTION 12
Which two types of files can be stored In an ASM clustered file system?
A. OCR and Voting Disk files
B. data files for external tables
C. Oracle database executable
D. Grid Infrastructure executables
E. data files for tablespaces
F. archive log files
Correct Answer: BC Explanation

Explanation/Reference:
Oracle Automatic Storage Management Cluster File System (Oracle ACFS) is a multi-platform, scalable file system, and storage management technology that extends Oracle Automatic Storage Management (Oracle ASM) functionality to support customer files maintained outside of Oracle Database. Oracle ACFS supports many database and application files, including executables, database trace files, database alert logs, application reports, BFILEs, and configuration files. Other supported files are video, audio, text, images, engineering drawings, and other gener- al-purpose application file data. Notes: Oracle ASM is the preferred storage manager for all database files. It has been specific- ally designed and optimized to provide the best performance for database file types.
Oracle ACFS is the preferred file manager for non-database files. It is optimized for gen- eral purpose files.
Oracle ACFS does not support any file type that can be directly stored in Oracle ASM, except where explicitly noted in the documentation.
Not supported means Oracle Support Services does not take calls and development does not fix bugs associated with storing unsupported file types in Oracle ACFS.
Starting with Oracle Automatic Storage Management 11g Release 2 (11.2.0.3), Oracle ACFS supports RMAN backups (BACKUPSET file type), archive logs (ARCHIVELOG file type), and Data Pump dumpsets (DUMPSET file type). Note that Oracle ACFS snap- shots are not supported with these files.
Oracle ACFS does not support files for the Oracle Grid Infrastructure home.
Oracle ACFS does not support Oracle Cluster Registry (OCR) and voting files.
QUESTION 13
You want to reorganize the DATA diskgroup while continuing database operations. The DATA diskgroup was created using normal redundancy having one disk per failure group. The two disks used are /dev/sdal and /dev/sda2.
You plan to drop the existing disks and add the /dev/sdb1 and /dev/sdb2 disks to failure group FG_C and the /dev/sdcl and /dev/sdc2 disks to failure group FG_D.
Which procedure would you use to minimize the effect of the I/Os of this reorganization on ongoing database operations?
A. Set rebalance power to 0 for diskgroup DATA. Add failure group FG_C with all the /dev/sdb disks. Add failure group FG_D with all the /dev/sdc disks. Drop disks/dev/sda1 and /dev/sda2. Set rebalance power to 1 for diskgroup DATA.
B. Set rebalance power to 0 for diskgroup DATA. Add failure group FG_C with all the /dev/sdb disks. Add failure group FG_D with all the /dev/sdb disks. Drop disks/dev/sda1 and /dev/sda2. Set rebalance power to 9 for diskgroup DATA.
C. Set rebalance power to 9 for diskgroup DATA. Add failure group FG_C with all the /dev/sdb disks. Add failure group FG_D with all the /dev/sdc disks. Drop disks /dev/sda1 and /dev/sda2. Set rebalance power to 0 for diskgroup DATA.
D. Set rebalance power to 0 for diskgroup DATA Drop disks /dev/sdal and /dev/sdb disks. Add failure group FG_C with all the /dev/sdb disks. Add failure group FG_D with all the /dev/sdc disks Set rebalance power to 1 for diskgroup DATA.
Correct Answer: A Explanation

Explanation/Reference:
To control the speed and resource consumption of the rebalance operation, you can in- clude the REBALANCE POWER clause in statements that add, drop, or resize disks. The ASM_POWER_LIMIT initialization parameter specifies the default power for disk rebalancing in a disk group. The range of values is 0 to 1024. The default value is 1. A value of 0 disables rebalancing. Higher numeric values enable the rebalancing operation to complete more quickly, but might result in higher I/O overhead and more rebalancing processes. Failure groups are used to place mirrored copies of data so that each copy is on a disk in a different failure group. The simultaneous failure of all disks in a failure group does not result in data loss. You define the failure groups for a disk group when you create an Oracle ASM disk group. After a disk group is created, you cannot alter the redundancy level of the disk group. If you omit the failure group specification, then Oracle ASM automatically places each disk into its own failure group, except for disk groups containing disks on Oracle Exadata cells. Normal redundancy disk groups require at least two failure groups. High redundancy disk groups require at least three failure groups. Disk groups with external re- dundancy do not use failure groups. Oracle. Automatic Storage Management
QUESTION 14
Which two Cluster ware stack administration actions must be performed as the root user?
A. checking the health of the Clusterware on one node
B. starting the Clusterware manually on one node
C. disabling the Clusterware from automatic start at node reboot
D. checking the health and viability of the Clusterware on all nodes
E. listing the location of the voting disks

Correct Answer: BC Explanation
Explanation/Reference:
Explanation: Controlling Oracle Clusterware The crsctl utility can be used to control Oracle Clusterware. To start or stop Oracle Clusterware on a specific node: # crsctl start crs # crsctl stop crs To enable or disable Oracle Clusterware on a specific node: # crsctl enable crs # crsctl disable crs
D60488GC11 Oracle 11g: RAC and Grid Infrastructure Administration Accelerated 3 – 5
QUESTION 15
Which four statements are true about ADVM interoperability?
A. Using fdisk or similar disk utilities to partition ADVM-managed volumes is not supported
B. On Linux platforms, the raw utility can be used to map ADVM volume block devices to raw volume devices.
C. The creation of multipath devices over ADVM devices is not supported.
D. You may create ASMLIB devices over ADVM devices to simplify volume management.
E. ADVM does not support ASM storage contained in Exadata.
F. ADVM volumes cannot be used as a boot device or a root file system.

Correct Answer: ACEF Explanation
Explanation/Reference:
Oracle Automatic Storage Management Cluster File System (Oracle ACFS) and Oracle ASM Dy- namic Volume Manager (Oracle ADVM) extend Oracle ASM support to include database and application executables, database trace files, database alert logs, application reports, BFILEs, and configuration files. Other supported files are video, audio, text, images, engineering drawings, and other general-purpose application file data. Because of the fact that Oracle ADVM Volumes are technically spoken ASM files located on ASM Disk groups, and the fact that the Dynamic Volumes do not use the traditional device parti- tioning, it enables Oracle to extend some of the ASM features to the ASM Clustered File Sys- tems, which are created inside these ADVM Volumes, such as dynamic resizing or dynamically adding volumes. This makes ADVM and ACFS a far more flexible solution than traditional physical devices.
Important Notes:
Partitioning of dynamic volumes (using fdisk or similar) is not supported Do not use raw to map ADVM volume block devices into raw volumes devices Do not create multipath devices over ADVM devices Do not create ASMLIB devices over ADVM devices Oracle ADVM supports all storage solutions supported for Oracle ASM with the excep- tion of NFS and Exadata storage ADVM volumes cannot be used as a boot device or a root file system
QUESTION 16
Your four-node cluster was originally purchased, installed, and configured three years ago. You recently
added another four nodes to the cluster.
Now you want to remove two of the older nodes that are still accessible to be redeployed elsewhere in the
data center. Which two are true regarding the procedure for removing one or more cluster nodes?

A. The procedure requires that all commands be invoked from one of the surviving cluster nodes.
B. All commands are run as root regardless of which nodes are used to invoke them.
C. The procedure requires that some commands be invoked on the node or nodes to be removed and that some be invoked from all surviving cluster nodes.
D. The procedure requires that some commands be invoked on the node or nodes to be removed and that some be invoked from one surviving cluster node.
E. Some commands require that the name of the node or nodes to be removed are passed as arguments, and some commands require the name of existing nodes to be passed.

Correct Answer: DE Explanation
Explanation/Reference:
If you are deleting multiple nodes, then run the rootcrs.pl script on each node that you are deleting.
From any node that you are not deleting, run the following command from the Grid_home/bin directory as
root to delete the node from the cluster:
# crsctl delete node -n node_to_be_deleted
On the node you want to delete, run the following command as the user that installed Oracle Clusterware
from the Grid_home/oui/bin directory where node_to_be_deleted is the name of the node that you are
deleting:
$ ./runInstaller -updateNodeList ORACLE_HOME=Grid_home “CLUSTER_NODES=
{node_to_be_deleted}” CRS=TRUE -silent -local
On the node that you are deleting, depending on whether you have a shared or local Oracle home,
complete one of the following procedures as the user that installed Oracle Clusterware:
For a local home, deinstall the Oracle Clusterware home from the node that you want to delete, as follows,
by running the following command, where Grid_home is the path defined for the Oracle Clusterware home:
On any node other than the node you are deleting, run the following command from the Grid_home /oui/bin
directory where remaining_nodes_list is a comma-delimited list of the nodes that are going to remain part
of your cluster:
$ ./runInstaller -updateNodeList ORACLE_HOME=Grid_home “CLUSTER_NODES=
{remaining_nodes_list}” CRS=TRUE -silent
Run the following CVU command to verify that the specified nodes have been successfully deleted from
the cluster:
$ cluvfy stage -post nodedel -n node_list [-verbose] Oracle. Clusterware Administration and Deployment
Guide

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