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Oracle ZFS Storage Appliance 2017 Implementation Essentials Oracle 1Z0-499 Oracle ZFS Storage Appliance 2017 Implementation Essentials Oracle 1Z0-499 Dumps Available Here at: https://www.certification-questions.com/oracle-exam/1z0-499-dumps.html Enrolling now you will get access to 70 questions in a unique set of 1Z0- 499 dumps Question 1 With which option would you configure a storage pool to meet the requirement of highest performance and high availability for random disk IOPS? Options: A. RAID-5 B. RAID-ZR C. RAID-1 D. RAID-Z2 E. RAID-Z3 Answer: E Explanation: Z3 is triple-disk failure protection within a multiple disk set, where stripe width var pool disk count. Data is triply mirrored, yielding a very highly reliable and high-performing system (for example, storage for a critical database). This configuration is intended for situations in which maximum performance and availability are required. Compared with a two-way mirror, a three-way mirror adds additional IOPS per stored block and higher level protection against failures. Incorrect Answers: A: RAID-5 has only one parity bit. C: RAID-1 is disk mirroring. D. RAID Z2 dual-parity raid is dual disk failure protection within a 9, 10, or 12 count. References: https://docs.oracle.com/cd/E51475_01/html/E52872/goden.html http://www.oracle.com/technetwork/server-storage/sun-unified-storage/documentation/o14-001- architecture-overview-zfsa-2099942.pdf https://www.certification-questions.com Oracle 1Z0-499 Question 2 A storage administrator has completed initial configuration and is going to access the BUI. What should you do to access the BUI? Options: A. Direct your browser to the system by using the IP address you assigned to the NET-0 port during initial configuration as follows: https://ipaddress:215. B. Direct your browser to the system by using the IP address you assigned to the NET-1 port during initial configuration as follows: https://ipaddress:215. C. Direct your browser to the system by using the IP address you assigned to the NET-0 port during initial configuration as follows: https://ipaddress:225. D. Direct your browser to the system by using the IP address you assigned to the NET-1 port during initial configuration as follows: http://ipaddress:215. Answer: A Explanation: The ZFSSA Browser User Interface (BUI) is the graphical tool for administration of the appliance. The BUI provides an intuitive environment for administration tasks, visualizing concepts, and analyzing performance data. The BUI provides an uncluttered environment for visualizing system behavior and identifying performance issues with the appliance. Direct your browser to the system using either the IP address or host name you assigned to the NET-0 port during initial configuration as follows: https://ipaddress:215 or https://hostname:215. The login screen appears. References: https://docs.oracle.com/cd/E37831_01/html/E52872/ overview__browser_user_interface_bui.html Question 3 Which two features are available when ZFS Storage Appliances are clusters? Options: A. A peer appliance can provide service while repairs are being performed. B. Load balancing among multiple heads is allowed. C. Clients are provided with a unified file system namespace across multiple appliances. https://www.certification-questions.com Oracle 1Z0-499 D. Rolling upgrade of software is allowed. Answer: A, D Explanation: As an alternative to incurring hours or days of downtime while the head is repaired, clustering allows a peer appliance to provide service while repair or replacement is performed. Clusters support rolling upgrade of software, which can reduce the business disruption associated with migrating to newer software. Incorrect Answers: B: The Oracle ZFS Storage Appliance clustering subsystem does not provide for load balancing among multiple heads. References: https://docs.oracle.com/cd/E51475_01/html/E52872/godho.html Question 4 What is the correct path to take a snapshot in a browser user interface (BUI)? Options: A. Shares > Projects B. Configuration > Services C. Maintenance > System D. Status > Settings E. Analytics > Datasets Answer: A Explanation: Taking a Snapshot (BUI) Use the following procedure to take a manual snapshot of a filesystem, LUN, or project. 1. Go to the share or project you want to snapshot. To take a snapshot of a filesystem, go to Shares > Shares. To take a snapshot of a LUN, go to Shares > Shares and click LUNs. To take a snapshot of a project, go to Shares > Projects. Etc. References: https://docs.oracle.com/cd/E78901_01/html/E78912/gpris.html Question 5 A storage system has plenty of storage space available. Which storage profile should a storage administrator use when both high performance and high reliability are required? Options: https://www.certification-questions.com Oracle 1Z0-499 A. double-parity RAID B. striped C. mirrored D. single-parity RAID, narrow stripes Answer: A Explanation: RAID in which each stripe contains two parity disks. As with triple mirroring, this yields high availability, as data remains available with the failure of any two disks. Double parity RAID is a higher capacity option than the mirroring options and is intended either for high-throughput sequential-access workloads (such as backup) or for storing large amounts of data with low random-read component. Note: Triple mirrored Data is triply mirrored, yielding a very highly reliable and high-performing system (for example, storage for a critical database). This configuration is intended for situations in which maximum performance and availability are required. Compared with a two-way mirror, a three-way mirror adds additional IOPS per stored block and higher level protection against failures. Incorrect Answers: B: Data is striped across disks, with no redundancy. While this maximizes both performance and capacity, a single disk failure will result in data loss. This configuration is not recommended. For pure streaming workloads, consider using Double parity RAID. C: Data is mirrored, reducing capacity by half, but yielding a highly reliable and high-performing system. Recommended when space is considered ample, but performance is at a premium (for example, database storage). D: RAID in which each stripe is kept to three data disks and a single parity disk. For situations in which single parity protection is acceptable, single parity RAID offers a much higher capacity option than simple mirroring. This higher capacity needs to be balanced against a lower random read capability than mirrored options. Single parity RAID can be considered for non-critical applications with a moderate random read component. For pure streaming workloads, give preference to the Double parity RAID option which has higher capacity and more throughput. References: https://docs.oracle.com/cd/E51475_01/html/E52872/goden.html Question 6 Which four are key attributes to set up a ZFS Storage Appliance for Microsoft Exchange? Options: A. serial number of ZFS storage appliance B. read/write SSD configured C. RAID1 https://www.certification-questions.com Oracle 1Z0-499 D. block size 4k E. iSCSI protocol Answer: A, B, C, E Explanation: B: The transactional log and database elements of ZFS send synchronous writes that require acknowledgment from persistent media. For this reason, Write Flash Acceleration SSDs greatly improve the write performance of the ZFS Storage appliance. E: The implementation of Exchange 2010 and 2007 on the Sun ZFS Storage 7420 can use both iSCSI and Fibre Channel target modes. Incorrect Answers: D: The main item to note is the volume block size set to 32k. This 32k volume block size has been found to yield the highest performance on the Sun ZFS Storage Appliance with Exchange 2010 databases. References: http://www.oracle.com/technetwork/articles/systems-hardware-architecture/implementing-ms- exchange-with-zfs-171600.pdf Question 7 Which three actions are performed to maintain data availability? Options: A. Software services are set to manually restart in case of software failure. B. A set of rolling snapshots of two preceding software installs is maintained during software upgrades. C. A set of rolling snapshots of preceding software installs is maintained during software upgrades. D. The appliance configuration is backed up and exported. E. Solaris Live Upgrade is used to minimize software updates and upgrades. F. Software services are automatically restarted in case of software failure. Answer: C, D, F Explanation: C: The majority of new features and bug fixes introduced in a system update are backwards-compatible and allow you to roll back to previous updates without issue. These are applied automatically by the storage management software. D: The configuration backup function enables the administrator to backup the appliance configuration, consisting of system metadata only (such as the network configuration, local users and roles, service settings, and other appliance metadata). F: To maximize the availability of your data in production, the ZFSSA includes a complete end to-end https://www.certification-questions.com Oracle 1Z0-499 architecture for data integrity, including redundancies at every level of the stack. Key features include the following: - Integrated software restart of all system ZFSSA Services Incorrect Answers: E: The ZFS file system that can make snapshots rather than be constrained to the add-on approach of Oracle Solaris Live Upgrade. References: Oracle ZFS Storage Appliance Administration Guide (June 2014) , page 23 https://docs.oracle.com/cd/E51475_01/html/E52874/ maintenance__system__configurationbackup__configuration_backup.html http://www.oracle.com/technetwork/server-storage/sun-unified-storage/documentation/best-practices- upgrading-zfssa-wp-2556078.pdf Question 8 Which four actions must you perform to access Active Directory (AD) in order to create appropriate authentication permissions? Options: A. Enter the details of a domain administrator who has the authority to allow the Oracle ZFS Storage Appliance to join Active Directory (AD). B. Enter the object class mappings for posixAccount and shadowAccount. C. From the Configuration > Services > Active Directory page, click the Join Domain button. D. Ensure that the clocks on the Oracle ZFS Storage Appliance and Windows Active Directory (AD) domain controllers are synchronized.
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