GB0-391-ENU

Which  description is correct about  L2TP VPN  and  SSL VPN?A . All need to install and maintain the clientB . Both support  Web  accessC . All support  lP  access modeD . are based on  UDP  encapsulationView AnswerAnswer:   C

Among  the packets encapsulated by the  GRE  protocol, the payload protocol is the  IPX  protocol, and the bearer protocol is the  IP  protocol.The encapsulation sequence of the packet from the link layer to the payload data is the link layer  ____GRE____  payload data.A . lP  ,  IPXB . IPX  , ...

Which of the  following statements about  SOA  and  IToIP  is correct is  ____  .A . SOA  solutions to the requirements of  IT  infrastructure integration, unified web-based technology to build  IT  infrastructure platform.B . SOA  is based on the network, eliminates the information gap caused by heterogeneous systems, integrates various services...

In the  PPPoE  negotiation process, which of the following  PPPoE  messages must contain  Service-Name  information  ?A . PADI  (  PPPoE Active Discover Initiation  )B . PADO  (  PPPoE Active Discover Offer  )C . PADR  (  PPPoE Active Discover Request  )D . PADT  (  PPPoE Active Discover Terminate  )View AnswerAnswer:  ...

Among  the control messages defined by the  MPCP  protocol, the one sent by the  OLT  is  ______  .( Choose one or more )A . GATEB . ReportC . Register_ReqD . RegisterE . Register_AckView AnswerAnswer:   AD Explanation:

Among the  following  VPN  technologies, those belonging to the third layer  VPN  are  ____  .( Choose one or more )A . L2TP VPNB . BGP/MPLS VPNC . VLLD . IPSec VPNView AnswerAnswer:   BD Explanation: Three layers:  IPSEC  ,  GRE  ,  MPLS VPN

In FIG illustrated  EPON  networking,  the OLT  to the network all  the ONU  (  the ONU1  to  ONUn  ) to transmit data, the following statements is correct is  ____  .( Choose one or more )A . Line Road  0  have all the  ONU  dataB . Line Road  1  on which all the  ONU  dataC . wire passage ...

The  following belong to the core layer function is  ____  .( Choose one or more )A . owns a large number of interfaces, and for the final connected user computer.B . access into the security controlC . High -speed packet-switchedD . will be the routing policyView AnswerAnswer:   CD

The incorrect  description of  L2TP VPN  and  GREVPN  is  ____  .( Choose one or more )A . all point to point  VPNB . Both support tunnel verificationC . Both support dynamic address acquisitionD . are based on  UDP  encapsulationView AnswerAnswer:   ACD

When the link type of the  ONU  port is  Access  , its processing method for the upstream message is  ____  .A . only allowed without belt  tag  packets through, and packets add the default  VLAN  's  tagB . Only the packets with the default  VLAN tag  are allowed to pass and go to the  tagC . for without...