A.802.1D and 802.1w interoperate only when the 802.1D STP domain supports rapid convergence.
B.Ports leading to 802.1D devices will run in compatibility mode， while the rest of the ports will run in 802.1w mode.
C.This is an invalid configuration and a partial migration cannot be done.
D.The bridge timers will be set to match the 802.1D devices.
E.A secondary root bridge will always be populated within the 802.1D domain.
F.If the root bridge is selected within the 802.1D domain， the whole STP domain will run in 802.1D compatibility mode.
G.In partially migrated 802.1w networks， it is recommended to keep the STP diameter below 4.
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A.The VSS switch must be the root bridge for all VLANs and is automatically designated.
B.The VSS switch is defined in RFC 4318 as a managed object.
C.The PAgP+ or LACP protocols are used to maintain the operational state of the VSS devices.
D.A VSS interoperates with a virtual port channel.
E.The 802.1Q or ISL protocols are used to maintain the operational state of the VSS devices.
F.A VSS increases the size of the spanning-tree domain.
Refer to the exhibit.From the MAC addresses shown in the command output，to which two ports is the multicast stream 225.230.57.199 being forwarded on this switch？（）
A.Fa6/28
B.Fa7/20
C.Gi3/7
D.Fa4/2
E.Fa4/14
F.Fa4/38
G.Fa6/38
H.Fa5/7
Refer to the exhibit. When applying this hierarchical policy map on the on the tunnel1 interface, you measure high jitter for traffic going through class 1234. What is the most likely cause of this jitter?（）
A.The configuration of a hierarchical policy map on a tunnel interface is not supported.
B.Class 5555 and class 5554 are both taking up 100% of the bandwidth，leaving nothing for class 1234.
C.The burst size for the traffic shaping is wrongly configured to 15000；this would require an interface capable of sending at 150Mb/s.
D.The burst size for the traffic shaping has been wrongly configured；it should be set as low as possible.
E.The burst size for the traffic shaping has been wrongly configured；it should be set as high as possible.
最新試題
The Frame Relay network in the diagram is not functioning properly.What is the cause of the problem?（）
什么是NAT？
當(dāng)將多個交換機加入到MST region當(dāng)中會發(fā)生什么（what happen）？
How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
Which of the following describes the roles of devices in a WAN?（）
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2.The routers cannot establish an adjacency relationship on their common Ethernet link.The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2.Based on the information in the graphic,what is the cause of this problem?（）
Refer to the exhibit.The network administrator is in acampus building distant from Building B.WANRouter is hosting a newly installed WAN link on interface S0/0.The new link is not functioning and the administrator needs to determine if the correct cable has been attached to the S0/0 interface.How can the administrator accurately verify the correct cable type on S0/0 in the most efficient manner?（）
The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?（）
Which of the following are key characteristics of PPP?（）
What field in IP packet is used for classification by QOS？