IBM认证考试
In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（）A、 tprofB、 iostatC、 svmonD、 filemon
题目
In order to determine how efficiently an application is reading and writing data， which of the following utilities will report read and write sizes on disk I/O requests？（）
- A、 tprof
- B、 iostat
- C、 svmon
- D、 filemon
参考答案和解析
相似问题和答案
第1题：
按照姓名升序序排列( )
A.ORDER BY NAME ASC
B.ORDER BY ASC NAME
C.ORDER BY NAME DESC
D.ORDER BY DESC NAME
第2题：
大规模定制可以分为哪些类型?()
A.按订单销售(Sale-To-Order)
B.(Assemble-to-Order)
C.按订单制造(Make-to-Order)
D.(Engineer-to-Order)
第3题：
设有订单表order(其中包含字段：订单号，客户号，职员号，签订日期，金额)，查询2007年所签订单的信息，并按金额降序排序，正确的SQL命令是( )。
A．SELECT * FROM order WHERE YEAR(签订日期)=2007 ORDER BY 金额 DESC
B．SELECT * FROM order WHILE YEAR(签订日期)=2007 ORDER BY 金额 ASC
C．SELECT * FROM order WHERE YEAR(签订日期)=2007 ORDER BY 金额 ASC
D．SELECT * FROM order WHILE YEAR(签订日期)=2007 ORDER BY 金额 DESC
解析：在SQL语句中用WHERE表示条件，而又需要按金额的降序进行排序所以用“金额DESC”表示。
第4题：
A.A
B.B
C.C
D.D
E.E
F.F
第5题：
A.Pre-order，pre-installation
B.Post-order，pre-installation
C.Pre-order，postcompletionsign-off
D.Pre-installation，postcompletionsign-off
第6题：
A.in order to
B.in order for
C.in order that
第7题：
The ORDERS table has these columns:ORDER_ID NUMBER(4) NOT NULLCUSTOMER_ID NUMBER(12) NOT NULLORDER_TOTAL NUMBER(10,2)The ORDERS table tracks the Order number, the order total, and the customer to whom the Order belongs.Which two statements retrieve orders with an inclusive total that ranges between 100.00 and 2000.00 dollars? （）
A. SELECT customer_id, order_id, order_total FROM orders RANGE ON order _ total (100 AND 2000) INCLUSIVE;
B. SELECT customer_id, order_id, order_total FROM orders HAVING order _ total BETWEEN 100 and 2000;
C. SELECT customer_id, order_id, order_total FROM orders WHERE order _ total BETWEEN 100 and 2000;
D. SELECT customer_id, order_id, order_total FROM orders WHERE order_total>= 100 and <= 2000;
E. SELECT customer_id, order_id, order_total FROM orders WHERE order_total>= 100 and order_total <= 2000;
第8题：
按照姓名降序排列( )
A.ORDER BY DESC NAME
B.ORDER BY NAME DESC
C.ORDER BY NAME ASC
D.ORDER BY ASC NAME
第9题：
A.onlythelow-order23bitsoftheMACaddressareusedtomapIPaddresses
B.onlythelow-order24bitsoftheMACaddressareusedtomapIPaddresses
C.onlythehigh-order23bitsoftheMACaddressareusedtomapIPaddresses
D.onlythelow-order23bitsoftheIPaddressareusedtomapMACaddresses
E.the0x01004fMACaddressprefixisusedformappingIPaddressestoMACaddresses
F.the0x01005eMACaddressprefixisusedformappingIPaddressestoMACaddresses
第10题：
______________________-
A.in order that B.so that C.in order to D.for