400-101 exam

Which condition must be true to allow an access port to trust QoS markings on an incoming frame?A . The switch must be configured globally with the mls qos trust cos command.B . The port must be configured with the mls qos cos command.C . The port must be configured...

Which two statements about marking fields are true? (Choose two)A . The 3 priority bits are in 802.10/C . The Frame Relay OE field is in the IP header and is 1 bit long.D . The IP DSCP field is in the IP header and is 6 bits long.E ....

Which two operating modes does VPLS support, (choose two).A . dynamic modeB . transport modeC . strict modeD . port modeE . VLAN modeF . loose modeView AnswerAnswer: D E

Which EIGRP feature allows the use of leak maps?A . StubB . NeighborC . Offset-listD . Address-familyView AnswerAnswer: A

In which two modes do IPv6-in-IPv4 tunnels operate? (Choose two.)A . tunnel modeB . transport modeC . 6to4 modeD . 4to6 modeE . ISATAP modeView AnswerAnswer: C, E

Which routing protocol type prevents routing loops by recording each autonomous system that a route traverses?A . Path-vector routingB . Link-state routingC . Distance-vector routingD . Hybrid routingView AnswerAnswer: D

Which two application protocols require application layer gateway support when using NAT on a Cisco router? (Choose two.)A . SIPB . HTTPC . FTPD . SMTPE . POP3View AnswerAnswer: A, C

Drag and drop the OSPFv3 LSA type on the left to the functionality it provides on the right View AnswerAnswer:

Drag and drop each step in the uRPF packet-forwarding from the left into the correct order of operations on the right View AnswerAnswer:

Which IPv6 tunneling mechanism requires a service provider to use one of its own native IPv6 blocks to guarantee that its IPv6 hosts will be reachable?A . automatic 4to6 tunnelingB . NAT-PT tunnelingC . ISATAP tunnelingD . 6rd tunnelingE . automatic 6to4 tunnelingF . manual ipv6ip tunnelingView AnswerAnswer: D