최신 Huawei-certification H13-922 무료샘플문제:
1. Restrictions on size reduction?
A) The cluster is a logical cluster / elastic cluster
B) When installing a cluster or installing the MPPDB service, if the ring information and the number of rings are customized, scaling down is not supported.
C) Before performing the operation, you must confirm that the status of the large cluster is Normal and the distribution status is DN
D) When the nodes included in the logical cluster to be reduced contain CMServer, GTM, and ETCD components, the logical cluster / elastic cluster cannot be reduced.
2. The following are not the EXPLAIN command options?
B. pretty
A) verbose
B) analyze
3. Which of the following are important statistics for the execution of the statement
A) HB value
B) ISTINCT value
C) Field width
D) Number of tuples in the table
E) NULL record ratio
F) MCV value (Most common value)
4. Are the following control operators?
A) RecursiveUnoin
B) Append
C) Agg
D) HashJoin
5. (Judgment) In the MVCC mode, when each transaction retrieves data, it only sees a snapshot of the data some time ago, not the latest state of the data.
A) TRUE
B) FALSE
질문과 대답:
질문 # 1 정답: A,B,C,D | 질문 # 2 정답: A | 질문 # 3 정답: A,B,C,D,E,F | 질문 # 4 정답: A,B | 질문 # 5 정답: A |