P2090-054の無料問題集（70題）、P2090-054認定試験参考書

IBM P2090-054 問題集

試験コード：P2090-054

試験名称：IBM Information Management DB2 10.5 pureScale Technical Mastery Test v3

最近更新時間：2025-04-23

問題と解答：全70問

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質問 1：
Which of the following options is TRUE about the Row and Column Access Control (RCAC) feature?
A. In order to take advantage of this feature, applications must be changed to work with the RCAC feature.
B. Row and column level access control allows the creation of column masks that can control what column values a user is permitted to see.
C. Table data is protected against direct access to the table. Access using views is unrestricted.
D. Users with DATAACCESS authority are exempt from the Row and Column Access Control rules.
正解：B

質問 2：
Consider the scenario where a database administrator is required to restore a database backup for a DB2 pureScale environment. Which of the following statements is correct?
A. The RESTORE DATABASE command will need to be executed on only one of the members within the cluster. This operation will restore both the database and metadata for all members.
B. The RESTORE DATABASE command will need to be executed on each DB2 caching facility within the cluster to restore just the database. All node metadata is not recoverable since it is not stored within database backups.
C. The RESTORE DATABASE command will need to be executed on the shared storage to restore the database. The metadata cannot be retrieved until the shared storage is restarted.
D. The RESTORE DATABASE command will need to be executed on each DB2 member within the cluster to restore just the database. A separate command will be required to restore the metadata for each member.
正解：A

質問 3：
How can you verify that a DB2 installation was successful?
A. Verification is performed by running the VERIFY INSTALL command.
B. Verification is completed by the DBA using the database verification toolkit.
C. Verification is automatically performed by the AUTO_CONFIGURE feature.
D. Verification can be done by successfully creating a SAMPLE database and running SQL commands to retrieve sample data.
正解：D

質問 4：
Each DB2 member in a DB2 pureScale environment has an associated database log.
Where is this log stored?
A. Shared storage.
B. Tie-breaker disk.
C. Locally on each member.
D. Cluster caching facility.
正解：A

質問 5：
What is the purpose of the Self Tuning Memory Manager (STMM) in DB2?
A. The purpose of this feature is for the system to deliver to you a report of database tuning recommendations so that you can update the configuration parameters by hand.
B. STMM allows DBAs to inspect the current memory allocation by buffer pools.
C. This feature detects memory expansion in the database and delivers a warning to the DBA to let them know when the database is nearing a threshold memory allocation limit.
D. This feature reduces the task of configuring your DB2 server by continuously updating memory configuration parameters, resizing buffer pools, and dynamically determining the total amount of memory to be used by the database.
正解：D

質問 6：
How are client connections handled in a standard DB2 pureScale environment?
A. Connections must be directed to the shared storage.
B. Connections must be directed to the primary cluster caching facility in the system.
C. Connections can be directed to any of the members in the system.
D. Connections must be directed to all members in the system, so that all members stay in sync.
正解：C

質問 7：
Which of the following options does NOT describe a benefit of DB2's Row Compression?
A. Compression allows you to store the same amount of data in less space, which can significantly save storage costs.
B. Compression allows you to cache more data in the buffer pools using the same amount of space.
C. Compression allows you to reduce CPU workload because there is less data to process.
D. Compression allows you to retrieve the same amount of data using fewer disk operations (I/O).
正解：C

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IBM Information Management DB2 10.5 pureScale Technical Mastery Test v3 認定 P2090-054 試験問題:

1. Which one of the following options is correct about DB2 pureScale installation?

A) A single setup image is required for installing both members and cluster caching facilities. A single invocation of the Setup Wizard from the installation-initiating host installs all of the components of the DB2 pureScale feature across all hosts that you specify as part of the DB2 pureScale environment.
B) A single setup image is required for installing both members and cluster caching facilities. The DB2 pureScale Setup Wizard must be invoked on each host to install all of the components of the DB2 pureScale feature.
C) Different setup images are required for for installing both members and cluster caching facilities. An invocation of the Setup Wizard is required to install all of the DB2 Members of the DB2 pureScale feature. Another invocation of the Setup Wizard is required to install all of the Cluster Caching Facilities.
D) Different setup images are required for installing both members and cluster caching facilities. The DB2 pureScale Setup Wizard must be invoked on each host to install all of the components of the DB2 pureScale feature.

2. Which of the following options justifies why you should be actively monitoring buffer pool hit ratios on your DB2 pureScale environment?

A) Attaining low local buffer pool (LBP) and global buffer pool (GBP) hit ratios are in general an indication of overall good performance as more pages are found in memory than having to fetch from I/O.
B) High local buffer pool (LBP) hit ratios are the only important metric that must be monitored since it indicates that there are a higher number of pages fetched from physical storage than from the local buffer pool.
C) Attaining high local buffer pool (LBP) and global buffer pool (GBP) hit ratios are in general an indication of overall good performance as more pages are found in memory than having to fetch from I/O.
D) Low local buffer pool (LBP) hit ratios are the only important metric that must be monitored since it indicates that there are a higher number pages fetched directly from physical storage than from the local buffer pool.

3. What are some of the benefits of DB2 Express?

A) DB2 Express is fastest and most powerful DB2 edition.
B) DB2 Express is designed for development and testing. It is not used as a production database.
C) DB2 Express has affordable licensing terms with all of the core features of the DB2 engine.
D) DB2 Express is a tool that allows DBAs to quickly solve complex database issues.

4. Consider a scenario where your DB2 pureScale cluster caching facilities are in PEER state. What would be the state of the secondary cluster caching facility upon failure of the primary cluster caching facility and a successful takeover?

A) PEER
B) PRIMARY
C) ERROR
D) NEW_PRIMARY

5. What is the purpose of the Self Tuning Memory Manager (STMM) in DB2?

A) The purpose of this feature is for the system to deliver to you a report of database tuning recommendations so that you can update the configuration parameters by hand.
B) STMM allows DBAs to inspect the current memory allocation by buffer pools.
C) This feature detects memory expansion in the database and delivers a warning to the DBA to let them know when the database is nearing a threshold memory allocation limit.
D) This feature reduces the task of configuring your DB2 server by continuously updating memory configuration parameters, resizing buffer pools, and dynamically determining the total amount of memory to be used by the database.

質問と回答：

質問 # 1
正解： A

質問 # 2
正解： C

質問 # 3
正解： C

質問 # 4
正解： B

質問 # 5
正解： D