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You created a snapshot of the /data2 filesystem as follows： 

题目
单选题
You created a snapshot of the /data2 filesystem as follows：   # fssnap -F ufs -o bs=/data2/snap /data2   But， the system responds with the following error： snapshot error： Invalid backing file path   What is the problem？ （）
A

 The /data filesystem does not exist.

B

 This message indicates that the /data2/snap directory does not exist.

C

 The name of the Backing Store is incorrect， it should be /dev/fssnap/0

D

 This message indicates that you cannot have the backing store file on the same filesystem as the filesystem being snapped.

参考答案和解析
正确答案： D
解析： 暂无解析
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相似问题和答案

第1题：

You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference.Which method or feature should you use?()

A. Compare Period ADDM report

B. AWR Compare Period report

C. Active Session History (ASH) report

D. Taking a new snapshot and comparing it with a preserved snapshot


参考答案：B

第2题：

In which file created by a mksysb would an administrator find filesystem and logical volume information?()

A./fs.data

B./image.data

C./bosinst.data

D./install.data


参考答案：B

第3题：

Which statements are true regarding the system－defined moving window baseline in Oracle Database 11g?()

A. It does not allow you to change the moving window size.

B. Adaptive threshold functionalities use it by default to compute statistics.

C. It is created by default with the window size being equal to the AWR retention time.

D. It is created when the first snapshot is collected by the Automatic Workload Repository (AWR).


参考答案：B, C

第4题：

In which file created by a mksysb would an administrator find filesystem and logical volume information？（） 

  • A、/fs.data
  • B、/image.data
  • C、/bosinst.data
  • D、/install.data

正确答案:B

第5题：

A previously functional, scheduled snapshot operation against a JFS2 filesystem has failed. The JFS2 filesystem is mounted and appears intact. What is the most likely cause of the failure and how should it be resolved?（）

  • A、The associated JFS2 log device has failed. Check the log device and varyon the device.
  • B、The logical volume that hosts the snapshots is full. Increase the size of the logical volume.
  • C、Fifteen snapshots already exist for the given JFS2 filesystem. Delete at least one existing snapshot.
  • D、The volume group that hosts both the snapshots and JFS2 filesystem has lost quorum. Check and correct the integrity of the volume group.

正确答案:C

第6题：

You are the administrator of a SQL Server 2000 computer. You want to set up snapshot replication on the server. The server will serve as Publisher and Distributor for a minimum of 40 Subscribers.

Currently, you want to publish 3GB of data, but the data is expected to grow over time. Subscribers will receive a new snapshot each month.

You want to minimize the workload on the Publisher/Distributor. Which two actions should you take to configure snapshot replication? (Each correct answer presents part of the solution. Choose two)

A．Store the snapshot in the default folder on the Publisher/Distributor.

B．Store the snapshot in an alternative folder on the Publisher/Distributor.

C．Store the snapshot in a shared folder on a file server.

D．Create pull subscriptions.

E．Create push subscriptions.


正确答案：CD
解析：Explanation:
C: In SQL Server 2000 it is possible to store snapshot files in a location other than or in addition to the default location. Alternate locations can be on another server, on a network share, or on removable media. Saving snapshot files in an alternate location can alleviate disk overhead on the Distributor.

However, Subscribers running earlier versions of SQL Server cannot use the alternate snapshot location. When specifying the snapshot location on a network share, it is recommended that that share folder be dedicated for snapshot storage and files. Subscribers that need to access the snapshot files will need Read permission to the snapshot location and appropriate folders. If the snapshot folder is not shared for the appropriate Subscribers, the replication agents cannot access the folder and the replication will fail.

D: With pull subscriptions the Subscriber requests data and updates that are made at the Publisher. Thus allows the user at the Subscriber to determine when the data changes are synchronized. With pull subscriptions the administration of the subscription takes place at the Subscriber.

A feature of pull subscriptions is that the Distribution Agent for snapshot and transactional publications and the Merge Agent for merge publications all run at the Subscriber. This can result in a reduction of the amount of processing overhead on the Distributor. However, if needed, the Distribution Agent or Merge Agent can be run at the Distributor to offload agent processing from the Subscriber.

Incorrect Answers:
A: The default location for snapshot replication files are specified in the Specify Snapshot Folder dialog box that appears in the Configure Publishing and Distribution Wizard and in the Create Publication Wizard. The default location is usually on the Distributor.

B: In SQL Server 2000 it is possible to store snapshot files in a location other than or in addition to the default location. Alternate locations can be on another server, on a network share, or on removable media. Saving snapshot files in an alternate location can alleviate disk overhead on the Distributor, particularly when it is located on another server, or a file server.

E: Push subscriptions are created at the Publisher. This places higher processor overhead at a Publisher using a local Distributor as the Distribution Agent for the snapshot publication runs at the Distributor.

第7题：

Which attribute of a JFS filesystem can NOT be changed after the filesystem is created？（）

  • A、The size of the filesystem
  • B、The placement of the filesystem
  • C、The mount point of the filesystem
  • D、The number of bytes per inode

正确答案:D

第8题：

Which describes the default behavior when you create a table? ()

A. The table is accessible to all users.

B. Tables are created in the public schema.

C. Tables are created in your schema.

D. Tables are created in the DBA schema.

E. You must specify the schema when the table is created.


参考答案：C

第9题：

Using splitvg to create a snapshot volume group of rootvg results in an error.  What is the most likely cause of the error（）

  • A、There is not an available disk to allocate to the snapshot volume group
  • B、One of the physical volumes associated with rootvg has a status of "missing"
  • C、Rootvg is running in enhanced concurrent mode
  • D、A snapshot volume group cannot be created for the rootvg

正确答案:D

第10题：

An  administrator  can  create  logical  volumes  and  then  add  file  systems  to  them，  or  create  the  file  system directly.  What is an dvantage of the two-step approach instead of the one-step approach（）

  • A、The number of bytes per inode can be specified.
  • B、Placement of the filesystem on the disk can be specified.
  • C、The jfslog can be specified on creation of the filesystem.
  • D、Either a JFS or JFS2 filesystem can be created on the logical volume.

正确答案:B

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