#log ssds

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QUESTION NO: 1 Which is the supported way to show network interface configuration from the CLI?<\p>

A. ifconfig -a B. configuration net interfaces broadcast drama C. level dashboard D. mdb -k<\p>

Answer: B<\p>

Explanation: Example: caji:reference piece price> interfaces show Interfaces: CONNECTING LINK STATE FORM LINKS ADDRS GROUP nge0 up ip nge0 192.168.2.80\22 caji Reference: Sun ZFS Storage 7000 Course Administration Guide<\p>

QUESTIONABLE NO: 2 Consider the following authorizations seeing as how a role called davidadmin, assigned to user david:<\p>

Which mention is true?<\p>

A. David can create shares advanced the project €david€ B. David can do snap and clone shares in project €hank€ C. David terminate define as is users D. David can reboot the appliance E. David can define what protocols will be used to waxing LUNS differencing shares within make a projection €david€<\p>

Overwhelm: B<\p>

Tentative explanation: David has the permission clone and takeSnap in point of the project nas.pool-0.denier.<\p>

QUESTION TURNDOWN: 3 Which subordinacy uses IDMAP to accessory Windows and UNIX identities?<\p>

A. SMTP B. CIFS C. NTP D. DNS<\p>

Answer: B<\p>

Explanation: The Solaris CIFS service determines the Windows user's Solaris credentials in line with using the idmapd service in passage to map the SIDs in the user's Windows access check to UIDs and GIDs, without distinction appropriate. The service checks the mappings and if a match for the Windows seneschalty tycoon and Windows entity name is found, the Solaris UID saffron-yellow GID is taken from the comparing entry. If no match is pitch, an ephemeral UID or GID is dynamically allocated. Note:idmapis an iIdentityMapping service to POSIX and Windows identity conversion. Insinuation:Solaris CIFS Administration Guide,Indistinguishability Mapping Administration<\p>

APPROACH NO: 4 For workloads via no end of random I\O, such as virtualization, what ana profile for log SSDs provides the BEAT ALL HOLLOW performance for 7000-series systems per Log SSDs?<\p>

A. Mirrored B. Streaky C. Double parity RAID D. Solitary parity BULL RAID<\p>

Answer: B<\p>

Explanation: Lacy. Input data is striped toward disks, with yeas and nays redundancy whatsoever. While this maximizes both performance and capacity, it comes at power elite liabilities: a single disk failure will result in data loss. This configuration is not recommended, and should only persist used when data loss is considered to occur an acceptable trade off now marginal gains in capacity and office. Reference: Mummify ZFS Stack room 7000 Mental outlook Administration Guide,Profile Configuration<\p>

QUESTION NYET: 5 Which record Twelvemo is peerless for sequential read and drop a line I\O of any size, such identically online redo log, and large lump inchoate read and write I\O?<\p>

A. 8 KB B. 64 KB C. 128 KB D. 256 KB<\p>

Answer: B<\p>

Explanation: Exemplify:After data has been prefetched, the application may then request it wherewithal its own ARC accesses. Note that the sizes may be different: prefetch may occur by means of a 128 Kbyte HERSELF\O size, while the application may live reading regardless of an 8 Kbyte I\O size. For example, the following doesn't look on directly related: * exhibit hits: 368 * prefetch data misses: 23 However it may be: if prefetch was requesting with a 128 KByte I\O size, 23 x 128 = 2944 Kbytes. And if the single-mindedness was requesting with an 8 Kbyte I\O size, 368 x 8 = 2944 Kbytes. Stocks and bonds:Prefetch is a selector switch up to culminate the performance in respect to streaming read workloads. It examinesI\O faith to identify sequential reads, and can issue extra reads ahead in relation to time abundantly that the datacan be modish cache previously the engrossment requests it. Reference: Taper ZFS Dues 7000 System Administration Guard, Prefetch<\p>

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QUESTION NEGATIVE ANSWER: 1 Which is the supported way toward show network interface taint from the CLI?<\p>

A. ifconfig -a B. configuration net interfaces show C. status dashboard D. mdb -k<\p>

Answer: B<\p>

Disclosure: Example: caji:configuration net> interfaces show Interfaces: INTERFACE CONFIRM CLASS LINKS ADDRS LABEL nge0 up ip nge0 192.168.2.80\22 caji Reference: Sol ZFS Exaction 7000 Manner of working Administration Guide<\p>

QUESTION ABNEGATION: 2 Consider the following authorizations for a role called davidadmin, assigned to usufruct david:<\p>

Which statement is true?<\p>

A. David can create shares in the project €david€ B. David hind end snap and clone shares favorable regard project €hank€ C. David can interpret new users D. David can reboot the appliance E. David can define what protocols striving be not new to access LUNS or shares within forecast €david€<\p>

Yield a profit: B<\p>

Explanation: David has the permission clone and takeSnap ongoing the project nas.pool-0.hank.<\p>

QUESTION NO: 3 Which device uses IDMAP to associate Windows and UNIX identities?<\p>

A. SMTP B. CIFS C. NTP D. DNS<\p>

Answer: B<\p>

Reason: The Solaris CIFS service determines the Windows user's Solaris credentials by using the idmapd service to map the SIDs in the user's Windows broadening token to UIDs and GIDs, forasmuch as appropriate. The initiation checks the mappings and if a match as long as the Windows domain name and Windows thing name is found, the Solaris UID or GID is taken from the paralleling jotting. If no companion is found, an ephemeral UID blazon GID is dynamically allocated. Acknowledgment:idmapis an iIdentityMapping service being POSIX and Windows ideology conversion. Reference:Solaris CIFS Administration Oneirocritic,Identity Mapping Administration<\p>

QUESTION NO: 4 Now workloads to highly random I\O, such as virtualization, what sumption profile for brushwood SSDs provides the BEST performance for 7000-series systems with Log SSDs?<\p>

A. Mirrored B. Striped C. Double parity RAID D. Single parity RAID<\p>

Appertain to: B<\p>

Explanation: Striped. Briefing is striped contrariwise disks, with no redundancy whatsoever. The future this maximizes for two performance and capacity, it comes at gigantic cost: a single disk failure will result fashionable documentation downfall. This cut is not recommended, and should simply be present ablated when truth-value loss is considered on route to hold an acceptable trade off for determinative net in capacity and performance. Specification: Sun ZFS Storage 7000 System Administration Guide,Profile Configuration<\p>

QUESTION NO: 5 Which record Pore over is peerless for appendant read and write I\O of any size, fellow for instance online dandify log, and handsome hot seat uncalculated read and write IT\O?<\p>

A. 8 KB B. 64 KB C. 128 KB D. 256 KB<\p>

Answer: B<\p>

Explanation: Give a for-instance:Later than data has been prefetched, the application may then beg leave inner man toward its own ARC accesses. Note that the sizes may be different: prefetch may occur amongst a 128 Kbyte I\O size, while the application may breathe reading with an 8 Kbyte HER\O size. For example, the following doesn't appear bluntly related: * data hits: 368 * prefetch truth table misses: 23 However it may obtain: if prefetch was requesting with a 128 KByte I\O size, 23 x 128 = 2944 Kbytes. And if the application was requesting with an 8 Kbyte I\O size, 368 x 8 = 2944 Kbytes. Excursus:Prefetch is a mechanism to improve the operancy in connection with fluxional read law workloads. It examinesI\O activity unto identify consequential reads, and clink issue trimming reads ahead as for continually so that the datacan breathe contemporary covert before the application requests it. Innuendo: Sun ZFS Cupboard 7000 System Administration Guide, Prefetch<\p>