1Z0-414 | Precise Oracle 1Z0-414 vce
Q31. Which two maintenance workflows does the Oracle ZFS Storage plug-in for Oracle Enterprise Manager Grid controller provide?
A. Add agents for Oracle Enterprise Manager Monitoring.
B. Configure for Oracle Enterprise Manager Monitoring.
C. Unconfigure for Oracle Enterprise Manager Monitoring.
D. Assign agents for Oracle Enterprise Manager Monitoring pool.
Answer: B,C
Explanation: The Sun ZFS Storage plug-in for Oracle Enterprise Manager Grid controller provides first-class monitoring to the grid controller environment for the Sun ZFS Storage appliance family with the ability to:
. Monitor Sun ZFS Storage appliances . Gather storage system information, configuration information and performance information of accessible storage components . Raise alerts and violations based on thresholds and monitoring information
collected by the tool
. Provide out-of-the-box reports that complement analytics
. Support monitoring by remote agents.
Once an appliance is configured to be monitored by the grid controller, analytics worksheets and datasets are created to bridge the grid controller administrator's view to the deeper level of detail provided by the real-time analytics available within the appliance. The management plug-in is available at the following link: Oracle Technology Network It is packaged with an installation guide that should be read by both administrators of the
grid controller and storage administrators of appliances being monitored.
Included with each appliance are two workflows that are used respectively to prepare a
system for monitoring, or to remove the artifacts created for the monitoring environment:
. Configure for Oracle Enterprise Manager Monitoring
. Unconfigure Oracle Enterprise Manager Monitoring
http://docs.oracle.com/cd/E27998_01/html/E48433/integration__oracle_grid_controller.html
Q32. A storage administrator plans to replicate new data from primary ZFS storage to the secondary ZFS storage.
Where should the administrator check to verify the current status of a replication?
A. Configuration > Services > Remote Replication
B. Shares > edit selected Share > Replication
C. Shares > Project > edit selected Project > Replication
D. Maintenance > Logs > Alerts
Answer: A
Q33. What happens when the Thin Provisioning property is set for a LUN?
A. This property allows the volume size to exceed the amount of available space.
B. A share reserves exactly enough space to completely fill the share.
C. Thin provisioning allows the storage administrator to divide the pool capacity into evenly sized LUNs.
D. A ZFS file system is created by setting a quota and reservation to the same value.
Answer: A
Explanation:
By default, a LUN reserves exactly enough space to completely fill the volume. This ensures that clients will not get out-of-space errors at inopportune times. This property allows the volume size to exceed the amount of available space. When set, the LUN will consume only the space that has been written to the LUN. While this allows for thin provisioning of LUNs, most filesystems do not expect to get "out of space" from underlying devices, and if the share runs out of space, it may cause instability and/or data corruption on clients.
http://docs.oracle.com/cd/E22471_01/html/820-4167/shares__shares__general.html#shares__shares__general__thin_provisioned
Q34. Which two protocols are required when implementing HCC?
A. dNFS
B. iSCSI
C. FC
D. NFS
Answer: B,C
Explanation:
The rich set of data services and appliance options further enhance the economic benefits of the Oracle ZFS Storage Appliance. All protocols (such as Common Internet File System (CIFS), Internet Small Computer System Interface (iSCSI), InfiniBand (IB), and Fibre Channel (FC) and others) are included in the base price of the system. Various data protection options and several data compression options are included in the base price. Customers can choose between high-capacity and high-performance SAS disk drives and various memory (DRAM and flash) options to optimize for their performance and capacity needs while staying within budget. Advanced data services like remote replication and snapshot cloning are also available.
http://www.oracle.com/technetwork/server-storage/sun-unified-storage/documentation/problemsolver-hcc-52014-2202692.pdf
Q35. A storage administrator needs to create a user. Which two methods can be used?
A. Edit the/etc/passwd and /etc/shadow files.
B. Using the CLI: Type "configuration users create", set the username, fullname, and initial_password parameters, and then type commit.
C. Using the CLI: Type "configuration users user <newuser>", set the fullname, and initialpassword parameters, and then type commit.
D. Using the BUI: Configuration > Users, add a user via the plus (+) sign next to Users, provide the appropriate information, and then click Add.
E. Import user accounts from Active Directory, LDAP, or NIS.
F. The storage administrator doesn't need to add user accounts.
Answer: A,D
Q36. Identify the two ways in which the ZFS Storage Appliance provides data integrity.
A. fsck(1M) on the ZFS file system is conducted every 5 minutes.
B. ZFS operations are copy-on-write transactions, so the on-disk state is always valid.
C. Parallel reads and writes are performed to the same file.
D. Every block is checksummed in server memory to prevent silent data corruption.
Answer: B,D
Explanation:
All operations are copy-on-write transactions, so the on-disk state is always valid. There is no need to fsck(1M) a ZFS filesystem, ever. Every block is checksummed to prevent silent data corruption, and the data is self-healing in mirrored or RAID configurations. When one copy is damaged, ZFS detects it (via the checksum) and uses another copy to repair it.
Q37. Which ZFS component improves ZFS throughput and response time for stable write processing (e.g.O_SYNC)?
A. VDEV
B. ZIO
C. ARC
D. DMU
E. ZIL
Answer: A
Q38. Which three statements are correct about Cluster Configuration of ZFS Storage Appliances?
A. To utilize resource of both nodes simultaneously, you need at least two storage pools: one that maps to node1 and another that maps to node2.
B. Clusters can be configured in two ways: Active-Active or Active-Passive.
C. Only one controller in a Cluster can be assigned resources.
D. You can assign networking and storage pool to a controller in a cluster.
E. In Cluster environment, both nodes can be owner of each storage pool.
Answer: B,C,E
Q39. A storage administrator wants to enable compression for a performance-sensitive application. Which option should be used?
A. LZJB
B. GZIP
C. GZIP-9
D. SHA-1
Answer: A
Explanation: The NFS protocol is used for communication with the Oracle Linux-based Oracle Database RAC server environment. LZJB compression is used for all filesystems mirroring for data protection in order to obtain optimal performance. LZJB reduces the footprint of this data significantly. LZJB compression requires less CPU overhead than other compression options, making it perfect for this performance-sensitive environment. In fact, in many cases, the use of LZJB actually enhances performance because it reduces throughput requirements through the back-end SAS interfaces.
http://www.oracle.com/us/products/servers-storage/storage/nas/resources/zfssaoracle-it-whitepaper-100812gc-1875031.pdf
Q40. Which Log Cache profile provides the best performance for workloads with high random I/O such as visualization?
A. Mirrored
B. Striped
C. Double-parity RAID
D. Single-parity RAID
Answer: B