HP HP ExpertONE Certification HP0-J66 Questions & Answers

• Question 51:

  A customer is planning to implement an HP StoreVirtual 4330FC Storage System

  Which type of cable do they need to connect the storage system to the fabric?

  A. SC Fibre Channel

  B. LC Fibre Channel

  C. iSCSI

  D. SAS

  Correct Answer: A

• Question 52:

  A customer using high-speed parallel operations needs to encrypt data in 128-bit blocks with a key size of up to 256 bits. Which security standard should the customer use?

  A. RC5

  B. DES

  C. AES

  D. SHA

  Correct Answer: C

  The key size used for an AES cipher specifies the number of repetitions of transformation rounds that convert the input, called the plaintext, into the final output, called the ciphertext. The number of cycles of repetition are as follows:

  Incorrect:

  Not A: RC5 has a variable block size (32, 64 or 128 bits), key size. Not B: DES is now considered to be insecure for many applications. This is chiefly due to the 56- bit key size being too small.

• Question 53:

  A customer has implemented an HP 3PAR StoreServ 7200 and needs to non-disruptively change the RAID characteristic of a virtual volume. The customer must also change the disk tier where the virtual volume resides. Which HP 3PAR command or software feature should the customer use to accomplish this task?

  A. tunevv

  B. Adaptive Optimization

  C. Dynamic Optimization

  D. tunesys

  Correct Answer: A

  tunevv - Change the layout of a virtual volume.

  SYNTAX

  The tunevv command uses one of the following syntax conventions:

  tunevv usr_cpg [options]

  tunevv snp_cpg [options]

  tunevv restart [options]

  tunevv rollback [options]

  SUBCOMMANDS

  usr_cpg

  Moves the logical disks being used for user space to the specified CPG.

  snp_cpg

  Moves the logical disks being used for snapshot space to the specified CPG.

  restart

  Restarts a tunevv command call that was previously interrupted because of component failure, or because of user initiated cancellation. This cannot be used on thinly provisioned virtual volumes.

  rollback

  Returns to a previously issued tunevv operation call that was interrupted. The canceltask command needs to run before the rollback.

  This cannot be used on thinly provisioned virtual volumes.

  DESCRIPTION

  The tunevv command is used to change the properties of a virtual volume that was created with either the createvv or createtpvv command by associating it with a different CPG.

  Incorrect:

  Not B: The HP 3PAR Data Optimization Software Suite v2 combines capabilities that provide autonomic storage tiering and dynamic data mobility with assured quality of service . Adaptive Optimization provides highly reliable, non-disruptive,

  cost-optimized storage tiering at the sub-volume level to deliver the right QoS to the right data at the right time on a large scale and Dynamic Optimization delivers it at the volume level.

  Not D:

  Best practice is to run Autonomic Rebalance (also known as tunesys) after adding drives.

• Question 54:

  A company is experiencing performance problems on a third-party storage system with a large VMware environment. The company plans to migrate to an HP 3PAR StoreServ 7000.

  Which benefit will the company realize from this migration?

  A. ability to handle demand spikes

  B. automated operating system deployment

  C. support for VMware VAAI

  D. built-in virtual machine management

  Correct Answer: C

  HP 3PAR Application Software Suite for VMware The HP 3PAR Application Software Suite for VMware provides everything you need to make your VMware environment more agile and efficient-including Recovery Manager for VMware, Host Explorer for VMware, VASA support, and three essential plug-ins: the VMware Site Replication Manager (SRM) Adapter, the 3PAR VAAI plug-in, and the 3PAR management plug-in for VMware View. Application Software Suite for VMware uses system-based licensing.

  Reference; Quickspecs, HP 3PAR StoreServ 7000

• Question 55:

  A customer plans to migrate data from an HP EVA4400 to an HP 3PAR StoreServ 7000. The customer has VMware vSphere 5 that uses the HP EVA4400.

  How can the customer migrate the VMware storage without disruption?

  A. by configuring load-balancing between storage systems

  B. by verifying the EVA is running a supported firmware

  C. by upgrading the VMware vSphere version

  D. by configuring multipathing between storage systems

  Correct Answer: D

  Reference: HP 3PAR StoreServ Storage and VMware vSphere 5 best practices

• Question 56:

  A large enterprise currently has an HP Virtual Library System (VLS) and plans to migrate to an HP StoreOnce 6200 Backup System. Which best practice must the enterprise consider during this migration?

  A. The HP VLS should be connected to a Fibre Channel switch.

  B. No more than 16 data streams should be run to a single VLS device concurrently.

  C. They should use NPIV to connect the HP StoreOnce 6200 Backup to the nodes as different devices.

  D. Multiplexing is not recommended for the HP StoreOnce 6200 Backup

  Correct Answer: D

  Do not send multiplexed data to StoreOnce B6200/D2D Backup Systems. "Multiplexing" data streams from different sources into a single stream in order to get higher throughput used to be a common best practice when using physical tape drives. This was a necessity in order to make the physical tape drive run in streaming mode, especially if the individual hosts could not supply data fast enough. But multiplexing is not required and is in fact a BAD practice when it comes to D2D or B6200 deduplication devices.

  Note:

  * Users familiar with the HP VLS System should be aware that the HP StoreOnce B6200 Backup System does not behave in the same way and needs a completely different approach when architecting and tuning for best performance. Do not assume that an HP B6200 Backup System can replace an HP VLS System without major re-evaluation of requirements and alignment with HP B200 best practices.

  Reference; HP B6200 Backup System, Recommended Configuration Guidelines

• Question 57:

  A company with a first-generation deduplication appliance is migrating to an HP StoreOnce 6200 Backup System. After migration, what will be the size of the deduplication block?

  A. 4 kb

  B. 8 kb

  C. 16 kb

  D. 32 kb

  Correct Answer: A

  Deduplication Optimization HP created a highly-optimized deduplication approach that introduces time- and space-saving techniques. With the goal of eliminating the maximum amount of redundancy in its data inspection, while also maintaining a small index to deliver the fastest performance, the company focused on two components of its deduplication approach: an average variable chunk size of 4K, and a sparse index. HP's Adaptive Micro-Chunking uses variable-length data segments or chunks. The backup stream is broken down into approximately 4K variable-length segments that are examined for redundancy versus previously stored information. Smaller segments means there are more chunks and index comparisons, which also means a higher potential to locate and eliminate redundancy (and produce higher reduction ratios). Comparative solutions use block sizes that range from 8K to 32K. The tradeoff with small chunk sizes is a greater number of index look-ups--which could mean slower deduplication performance. However, HP Labs developed HP Predictive Acceleration technology to maintain performance and reduce RAM requirements. By using a subset of key values stored in memory, StoreOnce determines a small number of sequences already stored on disk that are similar to any given input sequence--what HP refers to as sparse indexing. Then each input sequence is only deduplicated against those few sequences. This minimizes disk IO and uses less disk and little memory, creating more efficiency and enabling faster ingest and, importantly, restoration of data. HP's approach accelerates reads/writes, and delivers rapid ingest rates of up to 28 TB/hour. Predictive Acceleration has enabled HP to require up to 50% less RAM than comparable solutions.

• Question 58:

  Which tool does the HP StoreVirtual 4000 solution provide to help customers monitor array health?

  A. Command View

  B. Centralized Management Console

  C. FCTool

  D. SAN Toolbox

  Correct Answer: B

  HP LeftHand P4000 Centralized Management Console (CMC) includes possibilities to:

  * monitoring arrays

  Incorrect:

  Not D: The SAN toolbox is used to provide a simple and effective way to represent the various components of a SAN configuration.

  Not A: Want to reduce IT costs and management complexity for your arrays and SANs? Need to be ready for the next set of changes?

  HP Command View EVA Software provides you with a powerfully simple storage management experience, automates and aggregates storage management to reduce complexity and increase productivity. Quickly and easily automate tasks

  such as configuring RAID groups.

  Provisioning capacity is simple, and you can dynamically expand LUNs and add drives online without downtime to quickly meet changing business needs. HP Command View EVA Software is a comprehensive software suite designed to

  simplify array provisioning and management of all HP EVA family of storage array products.

  You can easily create Vdisks and grow or shrink LUNs, all without downtime. Command View EVA Software allows you to replicate data with snapshots for immediate use.

  And you can feel secure about your data with the industry-leading security features.

• Question 59:

  A large enterprise is experiencing exponential growth of data but shrinking backup windows. They need to design, plan, and integrate a comprehensive disaster recovery solution for all their data centers. Part of their disaster recovery solution must include data migration to a remote site.

  How does the HP StoreOnce 6200 Backup System respond to this customer's requirements?

  A. by supporting more than 32 concurrent data streams to a single VTL or NAS share device

  B. by supporting a single fabric with dual switches where the drives are presented to a single port for no single point of failure

  C. by requiring a smaller volume of seeding data to be sent over a WAN link than previous StoreOnce D2D models

  D. by providing built-in low-bandwidth replication for cost-effective copies of data offsite

  Correct Answer: D

  Challenges in Enterprise Data Protection Requirements for a modern Enterprise Data Protection solution have many drivers:

  *

  Exponential growth of data Shrinking backup windows

  *

  The need to design, plan and integrate a comprehensive Disaster Recovery capability

  *

  The need for backup devices to be more available than ever before

  The HP B6200 StoreOnce Backup System responds to all these requirements by providing:

  *

  Deduplication to drive more efficient storage of data

  *

  Large device scalability to ensure every backup has access to devices and, so, reduce queuing time

  *

  (D) In-built low bandwidth replication for cost-effective copies of data offsite as part of a Disaster Recovery plan

  *

  HP Autonomic failover (with appropriate ISV software) to allow backups to continue, even if a node in an HP B6200 StoreOnce Backup System fails.

  *

  High scalability in terms of capacity, performance and replication to ensure the system grows as your business grows.

  Reference; HP B6200 Backup System, Recommended Configuration Guidelines

• Question 60:

  A customer requests a storage and server environment assessment prior to the installation of additional SAN components. Which HP software utility provides a quick and accurate view of the customers SAN topology?

  A. Storage Security Self-Assessment Tool

  B. SAN Visibility

  C. Storage Product Selector

  D. SAN Designer

  Correct Answer: B

  SAN Visibility is a complementary software utility for HP customers that helps with SAN Analysis, SAN Diagnostics and SAN Optimization. SAN Visibility saves you considerable time, money, and effort by automating inventory activities and

  providing a quick and accurate view of your SAN topology. SAN Visibility has an automated report generation feature that produces recommendations, topology diagrams, and informative SAN element reports for switches, host bus adapters

  and storage array connectivity. SAN Visibility runs on any Windows desktop or laptop which has network connectivity to a switch within your SAN.

  Incorrect:

  Not A: HP's storage security self-assessment tool helps you gauge your storage privacy vulnerabilities online and free of charge--and gain valuable insight on how to better manage risk, protect sensitive data and comply with data privacy

  regulations.