Which of these best identifies the types of prefixes a router running BGP will advertise to an EBGP peer?
A. prefixes received from any other BGP peer and prefixes locally originated via network statements or redistributed to BGP
B. all prefixes in its IP routing table
C. only prefixes received from EBGP peers and prefixes locally originated via network statements or redistributed
D. only prefixes received from EBGP peers and prefixes received from route reflectors
E. all prefixes in its routing table except the prefixes received from other EBGP peers
F. all prefixes in its routing table except the prefixes received from other IBGP peers
Which standard supports multiple instances of spanning tree?
Spanning Tree Protocol calculates path cost based on which of these?
A. interface bandwidth
B. interface delay
C. interface bandwidth and delay
D. hop count
E. bridge priority
A. HSRP standby configuration error
B. HSRP burned-in address error
C. HSRP secondary address configuration error
D. this is not an HSRP problem, but rather an STP error or router or switch configuration issue
What two features in Cisco switches help prevent Layer 2 loops? (Choose two.)
A. UniDirectional Link Detection
B. Hot Standby Router Protocol
C. Virtual Router Redundancy Protocol
E. root guard
F. loop guard
A. loop guard
C. root guard
D. BDPU guard
Refer to the exhibit. This exhibit shows the NAT configuration for Router A and the output for a ping issued from device 22.214.171.124 and destined to 172.16.47.142. Based on this information,
what change must be made to Router A in order for the ping to work?
A. reload the router
B. clear the route cache
C. add a static route
D. configure IP as classless
E. load a newer IOS image
In PIM-SM what control plane signaling must a multicast source perform before it begins to send
multicast traffic to a group?
A. The source must send a PIM Register message to the rendezvous point (RP).
B. The source must first join the multicast group using IGMP before sending.
C. The source must perform a Request to Send (RTS) and Clear to Send (CTS) handshake with the PIM designated router (DR).
D. No control plane signaling needs to be performed; the source can simply begin sending on the local subnet.
Which of these statements about PIM join messages in classic PIM-SM is correct?
A. PIM join messages are sent every 60 seconds to refresh the upstream router’s mroute state for the multicast tree.
B. Routers send a PIM join acknowledgement in response to each PIM join message received from a downstream router.
C. PIM join messages are only sent when the multicast distribution tree is first being established.
D. PIM join messages are sent every three minutes to refresh the upstream router’s mroute state for the multicast tree.
The ip pim autorp listener command is used to do which of these?
A. enable a Cisco router to “passively” listen to Auto-RP packets without the router actively sending or forwarding any of the packets
B. allow Auto-RP packets in groups 126.96.36.199 and 188.8.131.52 to be flooded in dense mode out interfaces configured with the ip pim sparse-mode command
C. enable the use of Auto-RP on a router
D. configure the router as an Auto-RP mapping agent
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