최신 IBM Certified Database Administrator A2090-611 무료샘플문제:
1. Which statement about insert time clustering tables (ITC) is true?
A) ITC tables are supported in DB2 pureScale environments.
B) Rows of an ITC table are clustered by the time they are inserted into the table.
C) ITC tables cannot be range-partitioned tables.
D) If an ITC table is clustered by one or more user specified dimensions, the specified dimensions must be timestamps.
2. What type of Label-Based Access Control (LBAC) security label component is used to define a scale in which the first element listed represents the highest level of trust a person can have and the last element listed represents the lowest level of trust a person can have?
A) Range
B) Set
C) Array
D) Tree
3. Table TAB_A resides within table space TBSP_1.
Which statement is correct?
A) Using the COPY NO and ALLOW READ ACCESS options means that the existing table data is only readable until the index build phase begins,since no copy of the existing data is made during the LOAD.
B) Using the ALLOW READ ACCESS option along with INCREMENTAL indexing mode means that the newly inserted data can be accessedbecause of the new CURRENTLY COMMITTED semantics.
C) Using the INSERT INTO and the INCREMENTAL indexing mode allows DB2 to increase the concurrency of table access during the LOADoperation because LOAD will always append the inserted data to the end of the table and the new index pages are also added to the end ofthe existing index when using INCREMENTAL indexing mode.
D) Using the COPY NO option means the data in any table within table space TBSP_1 cannot be updated or deleted until either a table spacebackup of TBSP_1 or a full database backup is completed.
4. Table TAB_A resides within table space TBSP_1.
Which statement is correct?
A) TAB_A is a table that has implicitly hidden columns and the file DEL_FILE contains data for both regular columns and hidden columns. Whilenew data is being loaded into TAB_A, applications will be able to read the data that existed prior to the LOAD operation.
B) The indexes for TAB_A will not be completely rebuilt because the INCREMENTAL indexing mode is used. Instead, new index keys will beappended to the original indexes. This will improve concurrency for the applications that are reading TAB_A during the LOAD operation.
C) The indexes for TAB_A will be copied at the beginning of the LOAD operation because of the COPY YES option. Since the indexes will also bebuilt using the INCREMENTAL indexing mode, the concurrency of table TAB_A will be maximized for any applications that wish to access thetable.
D) A flash copy of TAB_A will be made at the beginning of the LOAD because of the COPY YES option. This copy allows applications to read thedata that existed in the table prior to the LOAD operation and improves performance since the read operations will not collide with the LOAD.
5. What must a user possess if they want to run a DB2 Command Line Processor (CLP) script against a database using the Job Manager in IBM Data Studio?
A) Permission to log in to the database client using telnet.
B) Permission to log in to the database client using secure shell (SSH).
C) Permission to log in to the database server using telnet.
D) Permission to log in to the database server using secure shell (SSH).
질문과 대답:
| 질문 # 1 정답: B | 질문 # 2 정답: C | 질문 # 3 정답: D | 질문 # 4 정답: A | 질문 # 5 정답: D |
927 개 고객 리뷰
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