H12-261-ENU 무료 덤프문제 온라인 액세스

In RSTP, which port can provide the backup path that has reached to the root node of the spanning tree? What state is the port?

• A.Alternate port and Discarding state
• B.Designate port and Listening state
• C.Alternate port and Learning state
• D.Root port and Listening state
• E.Alternate port and Forwarding state

Which of the following statement is true about IPSG technology?

• A.The IPSG can perform binding table matching check on P packets that enter the interface and leave the interface.
• B.On the Huawei router, you can configure the IPSG function on the Vlanif.
• C.If an interface is configured with DHCP snooping Trust HCP ACK, DHCP NAKHCP, and Offerf packets, other untrusted ports cannot receive these packets. The ip source check user-bind check-item command is used to configure IP-based check packets for the dynamic or static entries.

Which layers are shared in the OSI reference model and the TCP/IP model? (Multiple Choice)

• A.Transport layer
• B.Session layer
• C.Expression layer
• D.Data link layer
• E.Application layer

When an administrator wants to manage some routes on the router during operation and maintenance, which of the following tools can mark these routes so that the administrator can configure the policy? (Multiple Choice)

• A.Use ip-prefix to mark routes on the router.
• B.If the BGP protocol is running, use the community attribute to mark the route.
• C.Use Tag value to mark routes on the router.
• D.Use ACLs to mark routes on the router.

What is wrong about the description of MPLS below?

• A.The length of the MPLS label is 20 bits and it is used for packet forwarding.
• B.MPLS supports multi-layer tag nesting, the S-bit value of the innermost tag is 1.
• C.The label space range of dynamic signaling protocols such as LDP and MP-BGP is 16-1023.
• D.In the TTL processing mode by using Pipe mode, IP packets are transmitted on the MPLS network. The TTL value of the IP packets is reduced by 1 in the MPLS ingress node and the egress node respectively.