1Z1-888 시험 정보 확인부터 문제 풀이와 실전 모의고사까지 Fast2test 하나로 Oracle MySQL 5.7 Database Administrator 준비를 마치실 수 있습니다. 155문항의 연습문제와 세 가지 학습 형태, 365일 무료 업데이트까지 한 번에 제공해 드립니다.

Oracle 1Z1-888 시험 개요:

Oracle 1Z1-888 시험 요강 주제:

Oracle MySQL 5.7 Database Administrator 시험, 이런 질문이 가장 많습니다

최신 MySQL Database Administration 1Z1-888 무료샘플문제

문제 #1

You have a MySQL instance running in a single cpu (1vCPU) VM in a shared infrastructure environment.
Your users are complaining that MySQL is sporadically slow and you have a suspicion that the VM infrastructure host is at fault due to resource contention.
You review the output of your scripts that monitor the database VM operating system during an extended period of slowdown.
What are the two most common indicators of the VM infrastructure host being at fault due to resource contention? (Choose two.)

A. 10% CPU
B. 100% SWAP, 100% RAM
C. 9.1 five minute load average, 10% iowait
D. 100% CPU use, 50% RAM
E. 90% RAM
F. 100% iowait

문제 #2

Consider the join_buffer_size parameter in MySQL Server.
Which two statements are true about the join buffer?

A. The value should be increased if the client performs several SELECT operations.
B. The join buffer is set per connection.
C. The join buffer is used to process sorts when complex joins are being performed.
D. The join buffer is global and can be changed only by restarting the server.
E. The value should be increased from the default if the query joins large rows without using an index.

문제 #3

What are three typical causes of MySQL becoming suddenly slow and unavailable? (Choose three.)

A. The application executes a new untested query.
B. The hardware includes a single point of failure.
C. The MySQL Query Cache is disabled.
D. Monitoring has not enabled all Performance Schema instruments.
E. OPTIMIZE TABLE is not executed for the InnoDB tables.
F. A configuration change was made.

문제 #4

An existing master-slave setup is currently using a delayed replication of one hour. The master has crashed and the slave must be "rolled forward" to provide all the latest data.
The SHOW SLAVE STATUSindicates these values:
* RELAY_LOG_FILE=hostname-relay-bin.00004
* RELAY_LOG_POS=1383
Which command set would make the slave current?

A. STOP SLAVE; CHANGE MASTER TO MASTER_DELAY=0; START SLAVE;
B. STOP SLAVE; CHANGE MASTER TO MASTER_DELAY=0; RELAY_LOG_FILE = `hostname-relay- bin.00004', RELAY_LOG_POS = 1383;
C. STOP SLAVE; CHANGE MASTER TO RELAY_LOG_FILE = `hostname-relay-bin.00004', RELAY_LOG_POS = 1383;
D. STOP SLAVE; SET GLOBAL master_delay=0; START SLAVE;

문제 #5

Multiversion Concurrency Control (MVCC) enables what type of backup?

A. Binary
B. Incremental
C. Logical
D. Hot

질문과 대답: