Which three circumstances would prevent traceroute from displaying the WAN IP addresses? （）(Choose three)
AThe WAN link is down.
BIPSec is enabled on the WX.
CTraceroute is enabled for compression.
DThe network is configured using static routes.
EThe local and remote cables are accidentally swapped.
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 three static objects are cached by the client-side WXC device?（） (Choose three.)
AXML
BHTML
CJPEG
DJavaScripts
ECascading Style Sheets
设谓词P（x）：x是奇数，Q（x）：x是偶数，谓词公式∃x（P（x）∨Q（x））在哪个个体域中为真？（ ）
A、自然数
B、实数
C、复数
D、A，B，C均成立
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：（）
Afsk.dat
BmodutypE.str
Cloadtemp.dat
Ddb_0.dat
Which two statements describe the criteria bandwidth detection uses to dynamically alter bandwidth allocation?（）(Choose two.)
AThroughput is raised as latency decreases.
BThroughput is based on available bandwidth.
CThroughput is lowered as latency decreases.
DLatency is measured by SYNs returned for each metapacket
