The sys is high when po is high.
The po represents the number of page steals.
The low values usually indicate insufficient paging space.
The low values usually indicate sufficient memory for the load.
第1题:
Using output from "vmstat 2 8," which of the following options is most appropriate to consider when determining if a system is experiencing memory thrashing?()
第2题:
When monitoring a system using vmstat with an interval, the metrics under page po represent which of the following phrases?()
第3题:
When monitoring a system using vmstat with an interval, which of the following conclusions should be drawn about the metrics under page pi and page po?()
第4题:
A system administrator is monitoring a system that has recently shown a decrease in performance.The administrator suspects that the system may be low on memory and may be paging excessively.Which of the following commands is best to identify a possible paging problem?()
第5题:
Evaluate the following command: SQL> CREATE TABLE design_data (id NUMBER, doc CLOB) LOB(doc) STORE AS SECUREFILE(DEDUPLICATE); Which statement is true regarding the above command?()
第6题:
The values do not include working storage.
The values do not include persistent storage.
The values include both persistent and working storage.
The values are not working or persistent storage.
第7题:
cy != 1
re != 0
po/fr > 1/6
fr/po > 1/6
第8题:
vmtune -w
svmon -w
schedtune -w
vmstat -s
第9题:
The pages to and from paging space per second
The page intervals and page operations per second
The page interrupts and page operations per second
The page segments transferred between pi and po devices per second
第10题:
Increase physical disk
Increase number of CPU’s
Increase physical memory
Increase number of servers
第11题:
The LOB values are automatically compressed.
The LOB values are cached by default in the buffer cache.
The LOB values are automatically stored in encrypted mode.
All LOB data that is identical in two or more rows in a LOB column share the same data blocks.
第12题:
The number pages over the limit
The pages to paging space per second
The number of page operations per second
The number of processes waiting for page out
第13题:
Which of the following statements is TRUE concerning the po column of the vmstat command?()
第14题:
After running the vmstat command, which of the following would most likely cause the value in the blocked column to be unusually high?()
第15题:
An AIX system administrator wants to reset the level at which the SIGDANGER signal is sent to processes so appropriate actions can be taken when paging space is running low. Which of the following commands is used to reset the level?()
第16题:
Which two statements are true about a bitmap index? ()
第17题:
Evaluate the following statements: CREATE TABLE purchase_orders (po_id NUMBER(4), po_date TIMESTAMP, supplier_id NUMBER(6), po_total NUMBER(8,2), CONSTRAINT order_pk PRIMARY KEY(po_id)) PARTITION BY RANGE(po_date) (PARTITION Q1 VALUES LESS THAN (TO_DATE(?1-apr-2007?d-mon-yyyy?), PARTITION Q2 VALUES LESS THAN (TO_DATE(?1-jul-2007?d-mon-yyyy?), PARTITION Q3 VALUES LESS THAN(TO_DATE(?1-oct - 2007?d-mon-yyyy?), PARTITION Q4 VALUES LESS THAN (TO_DATE(?1-jan-2008?d-mon-yyyy?)); CREATE TABLE purchase_order_items (po_id NUMBER(4) NOT NULL, product_id NUMBER(6) NOT NULL, unit_price NUMBER(8,2), quantity NUMBER(8), CONSTRAINT po_items_fk FOREIGN KEY (po_id) REFERENCES purchase_orders(po_id)) PARTITION BY REFERENCE(po_items_fk); What are the two consequences of the above statements?()
第18题:
They occur when the Sun is at minimum declination north or south
They occur when the Moon is at maximum declination north or south
The difference in height between consecutive high or low tides is at a minimum
They are used as the basis for the vulgar establishment of the port
第19题:
c=d
l and k are parallel
m and l are perpendicular
第20题:
Kernel thread
Too many users
Memory shortage
Network contention
第21题:
The sys is high when po is high.
The po represents the number of page steals.
The low values usually indicate insufficient paging space.
The low values usually indicate sufficient memory for the load.
第22题:
The cetane number affects the amount of injection lag
The cetane number is an indication of the fuels viscosity
Ignition lag is reduced with fuels having a high cetane number
The cetane number is of little significance in the combustion process
第23题:
It is recommended for the columns that have unique values.
It can be converted to a B-tree index by using the ALTER INDEX command.
It has a bitmap segment for each distinct value in the key column, containing a string of bits in which each bit represents the presence or absence of a key column value.
Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.
第24题:
The LOB matically compressed.
The LOB values are cached bvalues are autoy default in the buffer cache.
The LOB values are automatically stored in encrypted mode.
All LOB data that is identical in two or more rows in a LOB column share the same data blocks.