H12-261_V3.0 무료 덤프문제 온라인 액세스

Assuming that the neighbor relationship between BGP routers has been established successfully, the configuration on R1 is as shown in the figure. Which router is the route entry 10.10.10.0/24 advertised by R1 delivered to the farthest?

• A.R3
• B.R4
• C.R1
• D.R2

Which of the following is the wrong description about the establishment of the BFD session?

• A.When dynamically establishing a BFD session, the local identifier is dynamically allocated
• B.Statically configuring a BFD session refers to manually configuring BFD session parameters through the command line, including local identifiers and remote identifiers, etc.
• C.BFD sessions can only be established dynamically
• D.The system distinguishes between static BFD sessions and dynamic BFD sessions by dividing the identifier area.

As shown in the figure, there are three switches S1, SW2 and SW3, of which SW1 is the root bridge. The link between S1 and SW2 is congested, and SW2 cannot receive the configuration BPDU sent by the root bridge.
What kind of spanning tree does the administrator need to configure? Protection mechanisms to prevent problems caused by link congestion?

• A.root protection
• B.BPDU protection
• C.loop protection
• D.DefendTC-BPDU attack

Which of the following statements about BGP route reflectors is correct?

• A.Routes learned from clients, advertised to all non-clients and clients of this RR.
• B.A backbone network is divided into multiple reflection clusters, eachRR configures her RRs as non-clients, and establishes IBGP full connections between RRs.
• C.The trigger-ID attribute is generated by a route reflector (RR) and is used to prevent loops between clusters.
• D.Cluster-List is an optional non-transition attribute used to prevent loops within a cluster.

uninterrupted forwardingNSF (Non-Stopping Forwarding) and nonstop routing NSR (Non Stopping Routing) are two solutions for high reliabilitysolution, which of the following statements is correct

• A.NSF routers do not need to negotiate the ability to support NSF through specific packets
• B.turn onNSFAfter that, the router is switched between active and standby, and the routing table and forwarding table remain unchanged, so the traffic will not be lost during the GR time.
• C.NSR standby routers need to negotiate the ability to support NSR through specific packets
• D.NSRAfter this is enabled, if the main control board fails before the batch backup of services is completed, the NSR switchover cannot be completed.