题目
A. the K1 SONET byte; the K2 SONET byte
B. the K2 SONET byte;the K1 SONET byte
C. transmitter switching;receiver detection
D. Line Overhead bytes;Path Overhead bytes
E. Path Overhead bytes;Line Overhead bytes
第1题
A. VT circuits
B. STS circuits
C. VT tunnel circuits
D. 1:1 protection circuits
E. 1:N protection circuits
第2题
A. Traffic is switched from the first node receiving the AIS indication.
B. Traffic is switched from the far side of the failure, allowing handshaking to occur.
C. UPSR traffic is switched from the terminating node, BLSR traffic is rerouted from the originating node in the ring.
D. UPSR traffic is switched from the terminating node, circuit by circuit. BLSR traffic is rerouted from the last reachable node in the ring.
第3题
Click the Exhibit button. A customer has several interconnected core rings (see exhibit). They want to create several irtual rings?utilizing their OC-192 backbone (nodes 1,2,3,4). What should you recommend?()
A. PPMN with BLSR rings
B. PPMN with UPSR rings
C. 1:N protection on all core circuits
D. multi-ring interconnect with BLSR rings
第5题
A.0
B.1
C.2
D.3
E.4
第6题
A. revertive
B. circuit type
C. circuit size
D. bidirectional
E. protected drops
F. switch on PDI-P
第7题
当处理一个问题时的循环次数已知时,最好采用()语句来解决。
A. for
B. while
c. do-while
D. switch
第8题
有以下程序: #include <iostream> using namespace Std; int main() { int a = 15,b = 21,m = 0; switch(a%3) { case 0: m++; break; case 1: m++; switch(b%2) {
A.1
B.2
C.3
D.4
第9题
在Cisco Catalyst 3548以太网交换机上建立一个名为lib105的VLAN,下列正确的配置是______。
A) Switch-3548#vlan 1 name lib 105
Switch-3548#exit
B) Switch-3548(vlan)#vlan 1 name lib 105
Switch-3 548(vlan)#exit
C) Switch-3548(vlan)#vlan 1000 name lib 105
Switch3548(vlan)#exit
D) Swimh-3548(vlan)#vlan 1002 name lib 105
Switch-3548(vlan)#exit
第10题
(19)有以下程序
#include <stdio.h>
main()
{ int s;
scanf("%d",&s);
while(s>0)
{ switch(s)
{ case1:printf("%d",s+5);
case2:printf("%d",s+4); break;
case3:printf("%d",s+3);
default:printf("%d",s+1);break;
}
scanf("%d",&s);
}
}
运行时,若输入1 2 3 4 5 0<回车>,则输出结果是
A)6566456
B)66656
C)66666
D)6666656
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