Which two are effects of connecting a network segment that is running 802.1D to a network segment that is running 802.1w? (Choose Two.)
A. the entire network switches to 802.1D and generates BPDUs to determine root bridfe status.
B. A migration delay of three seconds occurs when the port that is connected to the 802.1D bridge comes up
C. The entire network reconverges and a unique root briddge for the 802.1D segment, and a root bridge for the 802.1W segment, is chosen
D. the first hop 802.1w switch that is connected to the 802.1D runs entirely in 802.1D compatibility mode and converts the BPDUs to either 802.1D or 802.1W segments of the network
E. Classic 802.1D timers, Such as forward Delay and Max-age, will only be used as a backup, and will not be necessary if point-to-point links and edge prots are properly identified and set by the administrator.
Which command is used to enable Etherchannel hashing for layer 3 IP and Layer 4 Port-based
A. mpls ip cef
B. port-channel ip cef
C. mpls ip port-channel cef
D. port-channel load balance
E. mpls ip load-balance
F. ip cef etherchannel channel-id XOR L4
G. ip cef connection exchange
In 802.1s, how is the VLAN to instance mapping represented in the BPDU?
A. The VLAN to instance mapping is a normal 16-byte field in the MST BPDU.
B. The VLAN to instance mapping is a normal 12-byte field in the MST BPDU.
C. The VLAN to instance mapping is a 16-byte MD5 signature field in the MST BPDU.
D. The VLAN to instance mapping is a 12-byte MD5 signature field in the MST BPDU.
Which three combinations are valid LACP configurations that will set up a channel? (Choose
Refer to the exhibit. Which statement is correct about the prefix 18.104.22.168/8?
A. The prefix has encountered a routing loop.
B. The prefix is an aggregate with an as-set
C. The prefix has been aggregated twice, once in AS 100 and once in AS 200.
D. None of these statements is true.
Which two options does Cisco PfR use to control the entrance link selection with inbound
optimization? (Choose two.)
A. Prepend extra AS hops to the BGP prefix.
B. Advertise more specific BGP prefixes (longer mask).
C. Add (prepend) one or more communities to the prefix that is advertised by BGP.
D. Have BGP dampen the prefix.
A. There is no potential issue; OSPF will work fine in any condition.
B. Sub-optimal routing may occur since there is no area 1 adjacency between the ABRs.
C. This is a wrong OSPF configuration because all routers must be in area 0 only.
D. This is a wrong OSPF configuration because /30 requires 0.0.0.3 wild card.
Refer to the exhibit. What triggered the first SPF recalculation?
A. changes in a router LSA, subnet LSA, and external LSA
B. changes in a router LSA, summary network LSA, and external LSA
C. changes in a router LSA, summary network LSA, and summary ASBR LSA
D. changes in a router LSA, summary ASBR LSA, and external LSA
Which two orders in the BGP Best Path Selection process are correct? (Choose two.)
A. Higher local preference, then lowest MED, then eBGP over iBGP paths
B. Higher local preference, then highest weight, then lowest router ID
C. Highest weight, then higher local preference, then shortest AS path
D. Lowest origin type, then higher local preference, then lowest router ID
E. Highest weight, then higher local preference, then highest MED
What is the first thing that happens when IPv6 is enabled on an interface on a host?
A. A router solicitation is sent on that interface.
B. There is a duplicate address detection on the host interface.
C. The link local address is assigned on the host interface.
D. A neighbor redirect message is sent on the host interface.
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