document power and UPS availability
to integrate routing and switching components
create a design specification document
document the customer's current and future technology projects
第1题:
Consider the query:Mysql> SET @run = 15;Mysql> EXPLAIN SELECT objective, stage, COUNT (stage)FROM iteminformationWHERE run=@run AND objective=’7.1’GROUP BY objective,stageORDER BY stage;The iteminformation table has the following indexes;Mysql> SHOW INDEXES FROM iteminformation:This query is run several times in an application with different values in the WHERE clause in a growing data set.What is the primary improvement that can be made for this scenario?()
A.Do not pass a user variable in the WHERE clause because it limits the ability of the optimizer to use indexes
B.Add an index on the objective column so that is can be used in both the WHERE and GROUP BY operations
C.Drop the run_2 index because it has caused a conflict in the choice of key for this query
D.Execute the run_2 index because it has caused a conflict in the choice of key for this query
E.Add a composite index on (run,objective,stage) to allow the query to fully utilize an index
第2题:
A. document power and UPS availability
B. to integrate routing and switching components
C. create a design specification document
D. document the customer‘s current and future technology projects
第3题:
A、To make money
B、To develop skills
C、To win
D、To make friends
第4题:
第5题:
The primary objective of a Ro-Ro vessel is to ______.
A.transfer containers without chassis
B.load the vessel with palletized cargo
C.transport vehicles
D.be loaded full and down to her marks
第6题:
A. Linux kernel
B. routing protocol daemon
C. session-based forwarding module
D. separate routing and security planes
第7题:
A. activity audit
B. administration
C. policy establishment
D. technology implementation
第8题:
听力原文:M: The primary objective of financial reporting is to provide information useful for making investment and lending decisions.
W: The information must be relevant, reliable, and comparable.
Q: What is the primary objective of financial reporting?
(15)
A.To make investment.
B.To record data.
C.To provide useful information.
D.To understand some basic accounting principles.
第9题:
第10题: