单项选择题
Which of these is a Layer 2 transport architecture that provides packet-based transmission optimized for data based on a dual （counter-rotating） ring topology？（）
A. DTP
B. RPR
C. SDH
D. CWDM
E. DWDM
点击查看答案
相关考题
-
单项选择题
OneofyourcustomerswishestousetheNAStoperformDHCPfunctionsanddoesnotcurrently haveaLayer3gatewayinitsproductionnetwork.Whichgatewaymodeisappropriateforthis customer？（）
A. Virtual Gateway
B. Real-IP Gateway
C. NAT Gateway
D. IP-IP Gateway -
单项选择题
YourMPLSimplementationiscurrentlyusinginternalbackdoorlinks.Whatcanyoudotominimize theimpactofhavingtheselinks？（）
A. use BGP as the CE-PE routing protocol
B. use OSPF as the CE-PE routing protocol
C. use EIGRP as the CE-PE routing protocol
D. use the SP to redistribute routes as external routes for OSPF and EIGRP
E. use route redistribution at each location to ensure external routes are imported into the IGP -
单项选择题
WhichoftheseistrueofaLayer3out-of-bandNASdeployment？（）
A. The NAS acts as a gateway for all Layer 3 traffic.
B. Only the MAC address is used to identify the client device.
C. User traffic remains on the same VLAN for the duration of the connection.
D. After authentication and posture assessment， client traffic no longer passes through the NAS.
