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NetApp NS0-155 問題練習

NetApp Certified 7-Mode Data Administrator 試験

最新更新時間: 2019/05/13,合計234問。

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Question No : 1
Which two commands on the storage system allow you to gather detailed statistics about network interfaces, including basic information about network connections? (Choose two.)

ifstat -a provides detailed statistics (multiple pages) about all network interfaces. netstat -i provides a list of connections and open network sockets (listeners). netdiag -n will perform a diagnostic but does not provide detailed statistics about networking. sysstat 1 will provide performance statistics but not detailed statistics about networking.

Question No : 2
To determine the version of Data ONTAP in which a bug has been fixed, use the NOW site _______ utility. (Choose two.)

This question is out of date, but its still on the exam as of Sept2013! NOW has been replaced with
You should be very familiar with what AutoSupport does. Also if you have done any research, you know that the System Configuration Guide is an invaluable tool that you will use regularly. Neither of those are related to bugs.
Bugs Online (BOL) is located at Bugs Online provides a suite of tools to help manage and resolve your bug issues.
The Release Bug Advisor is located at
There is also a Version Comparison tool available at

Question No : 3
Which are three characteristics of an iSCSI or FCP SAN implementation? (Choose three.)

Sadly, you cannot convert a LUN into a Vulcan Language Dictionary.

Question No : 4
Which three licenses are required for fabric-attached MetroCluster? (Choose three.)

Explanation: In preparation for a fabric attached metrocluster configuration, the following licenses must be installed: Cluster syncmirror _local cluster_remote syncmirror_fabric and syncmirror_remote are not valid license types.

Question No : 5
Which changes the NDMP password on the Open System SnapVault agent?

Explanation: Page=content&id=2010134&actp=LIST_RECENT&viewlocale=en_US&searchid=1296570465177 The svpassword command is available on the OSSV host as part of the agent binaries in the path <INSTALL_PATH>\netapp\snapvault\bin.

Question No : 6
In a tape environment after a SnapRestore reversion of a volume, incremental backup and restore operations on the file or volume cannot rely on the timestamps to determine what data needs to be backed up or restored. Which course of action ensures correct incremental backups?

A baseline (aka "full") backup is always required before valid incremental backups can be made.

Question No : 7
Data ONTAP 8.0 7-Mode supports SMB 2.0 in Windows Vista and Windows Server 2008.

SMB 2.0 support was included in Data OnTap 8.1.

Question No : 8
Which three items are NFS resources for export? (Choose three.)

You can export any file path. Implicitly file paths are filesystem objects. You can export a directory, a qtree, a volume or even a file.

Question No : 9
Which three attributes would you specify when creating a LUN? (Choose three)

The usage for lun create is shown below. Options not in brackets are mandatory. lun create -s size -t ostype [ -o noreserve ] [ -e space_alloc ] lun_path This usage of the lun create command should be employed to create a new LUN of given size, with initially zero contents. The LUN is created at the lun_path given. No file should already exist at the given lun_path. The directory specified in the lun_path must be a qtree root directory.
The size is specified in bytes. Optionally, a number followed by a one-character multiplier suffix can be used: c (1), w (2), b (512), k (1024), m (k*k), g (k*m), t (m*m). The size of the created LUN could be larger than the size specified, in order to get an integral number of cylinders while reporting the geometry using SAN protocols.
The size of the LUN actually created is reported if it is different from that specified in the command. The mandatory ostype argument is one of: solaris (the LUN will be used to store a Solaris raw disk in a singleslice partition), windows (the LUN will be used to store a raw disk device in a single-partition Windows disk using the MBR (Master Boot Record) partitioning style), hpux (the LUN will be used to store HP-UX data), aix (the LUN will be used to store AIX data), vld (the LUN contains a SnapManager VLD), linux (the LUN will be used to store a Linux raw disk without any partition table), netware (the LUN will be used to store NetWare data), vmware (the LUN will be used to store VMware data), windows_gpt (the LUN will be used to store Windows data using the GPT (GUID Partition Type) partitioning style), windows_2008 (the LUN will be used to store Windows data for Windows 2008 systems), openvms (the LUN will be used to store Open-VMS data), xen (the LUN will be used to store Xen data), hyper_v (the LUN will be used to store Hyper-V data), solaris_efi (the LUN will be used to store Solaris_EFI data).
By default, the LUN is space-reserved. To manage space usage manually, -o noreserve can be specified. Using this option will create a LUN without any space being reserved. Provisioning threshold events can be enabled by specifying -e space_alloc option. This option has to be used in conjunction with -o noreserve.

Question No : 10
Which three are valid LUN commands? (Choose three)

The following commands are available in the lun suite:

Question No : 11
Which three /etc/snapmirror.conf entries will support synchronous or semi-synchronous SnapMirror?

Explanation: Each relationship entry of the /etc/snapmirror.conf file is a single line containing space-separated fields. The entry has this format: Source destination arguments schedule schedule This is the schedule used by the destination node for updating the mirror. It informs the SnapMirror scheduler when transfers will be initiated. The schedule field can contain the word sync to specify fully synchronous mirroring, semi-sync to specify semi-synchronous mirroring, or a cron-style specification of when to update the mirror.
visibility_interval The value for this argument is a number optionally followed by the suffixes: s (seconds), m (minutes) or h (hours). If a suffix is not specified, value is interpreted as seconds. This argument controls the amount of time before an automatic snapshot is created on the source volume that is synchronously mirrored. The value is the number of seconds between automatically created snapshots. The default value is 3 minutes. A small number here can negatively affect the performance of the mirror. This argument is ignored for asynchronous mirrors.
Outstanding (deprecated) This argument controls the performance versus synchronicity trade-off for synchronous mirrors. The value for this argument is a number followed by the suffixes: ops (operations), ms (milliseconds) or s (seconds). Setting a value less than 10s configures the mirror to run in fully synchronous mode. Setting a value greater than or equal to 10s configures the mirror to run in semi-synchronous mode. This argument is ignored for asynchronous mirrors. Please note that this is a deprecated option. Use the schedule field to specify the synchronous mode for the mirror.
cksum This controls which checksum algorithm is used to protect the data transmitted by SnapMirror. Currently supported values are "none", "crc32c", and "crc32c_header_only". The value "crc32c_header_only" has been added only for volume SnapMirror and is not supported for synchronous SnapMirror and qtree SnapMirror.

Question No : 12
If you believe you create FC SAN performance problem, which NatApp utility would gather both your Solaris host and storage system data for analysis?

Performance and Statistics Collector (perfstat) is a data collection tool with several key properties:
Perfstat comes in exactly two flavors:
Supported platforms:

Question No : 13
When running deduplication on SnapVault destinations, which three statements are true?

Explanation:­C8E115FCBFB7.html SnapVault replicates at the file level not the block level. Deduplication is always a post-processed activity for Data OnTap, while compression is an inline process. The deduplication schedule depends on the SnapVault update schedule on the destination system. A new Snapshot copy replaces the archival Snapshot copy after deduplication finishes running on the destination system. (The name of this new Snapshot copy is the same as that of the archival copy, but the Snapshot copy uses a new timestamp, which is the creation time.) The SnapVault update recognizes the deduplicated blocks as changed blocks. Thus, when deduplication is run on an existing SnapVault source for the first time, all saved space is transferred to the destination system.

Question No : 14
Which MetroCluster configuration procedure is recommended for re-establishing a mirrored volume that was in a level-0 resynchronization state when it failed?


Question No : 15
Which statement is true about ASIS deduplication license with Data ONTAP 8.1?

Changes to deduplication in 8.1 7-mode Starting with Data ONTAP 8.1, you can enable the deduplication feature without adding a license. For deduplication, no limit is imposed on the supported maximum volume size. The maximum volume size limit is determined by the type of storage system regardless of whether deduplication is enabled.

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