Each fiber has half of its capacity reserved for protection.
Two fibers carry their full capacities while the other two fibers are reserved for protection.
The signal is sent simultaneously in both directions around the ring. The receiver determines which fiber to listen to based on signal quality.
The signal is sent simultaneously in both directions around the ring. The transmitter determines which fiber has the working bit set for the receiver to acknowledge.
第1题:
best-effort delivery
ingress committed rate (ICR)
shaping and policing
egress committed rate (ECR)
Integrated Services (IntServ)
differentiated services (DiffServ)
第2题:
IPX
IP
UDP
TCP
第3题:
Resource Reservation Protocol (RSVP)
first-in, first-out (FIFO)
best-effort
CBWFQ
IntServ
DiffServ
第4题:
the minimum data rate is not set to 11 mbps.
publicly secure packet forwarding is enabled.
the access point is set to the least congested channel.
an address resolution protocol has been disabled.
第5题:
Jitter
Delay
MTU
Reliability
第6题:
Aggressive Load Balancing on
Aggressive Load Balancing off
Multicast on
Multicast off
AP Fallback on
AP Fallback off
第7题:
10.8.64.0 255.255.224.0
10.8.64.0 255.255.128.0
10.8.64.0 255.255.192.0
第8题:
去枕平卧
半卧位
头低足高位
头肩抬高15°~30°
勤翻身变换体位
第9题:
先天性肾病
单纯性肾病
肾炎性肾病
急性肾小球肾炎
泌尿系感染
第10题:
39
39.0100
39.0100.0102
0001
0001.0c00
0001.0c00.1211