최신Huawei HCIE-Datacom V1.0 - H12-891_V1.0-ENU무료샘플문제

A. R2 specifies that the peer R1 sets the MED property to 150 in the export direction

B. R1 specifies that the peer R2 beats the local priority in the import direction to 150

C. R1 specifies that the peer R3 sets the MED property to 150 in the import direction

D. R2 specifies that the peer R1 sets the local priority to 150 in the export direction

A. Brutal mode can support NAT traversal, while main mode does not support NAT traversal.

B. The two routers can establish OSPF neighbor relations and exchange intranet routes through the IPSec VPN tunnel

C. Two routers establish an IPSec VPN in brutal mode, so that the two devices can interact with a minimum of 4 messages to establish a tunnel.

D. The two routers establish IPSecVPN in main mode, and from the 5th packet (included), the payload's data will be encrypted.

A. R1 can normally learn the loopback route

B. R3 of R2. The loopback route of R2 can be learned normally

C. R3 can not learn the loopback route to R2

D. R5 can normally learn the loopback route to R2

A. Open message negotiation failed.

B. After the BGP connection is established, the keepalive message is not received within the negotiated hold time time.

C. The mandatory attribute in the route update packet is missing.

D. The wrong BGP packet was received.

A. False

B. True

A. False

B. True

A. False

B. True

A. The TTL in the MPLS label has the same meaning as the TTL field in the head. TTL prevents mpLS networks from developing bad routing.

B. Unifore style, when an IP packet passes through the MPLS network, the IPTTL of the incoming node is minus l. The MPLS TTL field is a fixed value.

C. Pipe mode. When an IP message passes through the MPLS network, the IPTTL minus 1 is mapped to the WLSTTL field at the incoming node.

D. In MPLSVPI, if you need to hide the structure of the MPLS backbone network, you can use Uniform mode on Ingress for private network messages.

A. All routers running the OSPF protocol listen to 224005

B. All routers running the PIM protocol listen on 22400100

C. All hosts and routers in the network segment listen on 224001

D. All routers listen on 224002

A. MPLS has two ways of handling TTL, one is that the IP packet copies the PTTL of the MPLS header hen it enters the MPLS network Value; Another is to set the TTL of the MPLS header to 255 at the entrance LER

B. Copy IPTIL value is handled in such a way that the LSR of the MPLS domain is hidden, which plays a certain security role

C. Can prevent wireless circular forwarding of messages

D. When copying TTL is disabled, tracert can see the LSR of the passing MPLS domain

A. The interface sends a Hello packet immediately after joining the OSPF region

B. LS update packet is sent only when the adjacency relationship is established

C. LS update packet synchronizes the link state database by sending detailed LSA information 2

D. When an LsUpdate packet is received, the router must send an LsAck acknowledgment