Which three static objects are cached by the client-side WXC device?（） (Choose three.)

A

XML

B

HTML

C

JPEG

D

JavaScripts

E

Cascading Style Sheets

（多选）下列等值式成立的有（　　）。

P→Q⇔¬Q→¬P

P∨（P∧R）⇔R

P∧（P→Q）⇔Q

P→（Q→R）⇔（P∧Q）→R

若有定义int a;float b;double c;程序运行时输入：3 4 5能把值3输入给变量a、4输入给变量b、5输入给变量C的语句是（　　）。

A、scanf("%lf%lf%lf",&a,&b,&c);

B、scanf("%d%lf%lf",&a,&b,&c);

C、scanf("%d%f%f",&a,&b,&c);

D、scanf("%d%f%lf",&a,&b,&c);

Which are the three levels at which the Segment Advisor generates advice?（）

block level 

object level 

schema level 

segment level 

tablespace level

BSC程序数据加载前，要检查BAM的Dload目录下的文件是否齐全，除了AM/CM和BM各单板需要的加载程序和数据文件外，下列哪几个文件还是必须的：（）

fsk.dat

modutypE.str

loadtemp.dat

db_0.dat

Which statement is true regarding the Junos OS?（）

A、Each process runs in its own protected memory space ensuring that one process cannot directly interface with another

B、Process share memory space but separate ASICs so that one process cannot directly interfere with another

C、A central processor called the IP2 chip dynamically assings memory as process needs fluctuate

D、The memory management daemon (mmd) is responsible for allocating new memory for process as they request it