Cisco 200-301 Exam Dumps, Practice Test Questions

Dynamic auto relies on DTP negotiation rather than suppressing negotiation traffic; it conflicts with the stipulated fixed-mode design.

This assigns the untagged VLAN but does not disable Dynamic Trunking Protocol advertisements on the port.

The allowed list filters VLAN admission; it does not stop DTP frames from being generated.

A native-VLAN comparison alone cannot reveal whether VLAN 40 is excluded from one peer’s allowed trunk VLAN set.

An operational Ethernet link can still refuse to forward a particular VLAN excluded by the allowlist.

Its gateway could be correct while the missing VLAN is filtered between the two switches.

VLAN existence says nothing about whether this DTP dynamic-auto interface became a trunk.

Spanning-tree roles are independent of whether DTP negotiated an operational access or trunk port.

The configured administrative mode is not the actual negotiated operational switchport mode requested.

Permitting additional tagged VLANs does not reconcile the inconsistent treatment of untagged traffic.

The physical link may be healthy even as the peers assign untagged frames to different VLANs.

Root selection does not directly reveal the mismatched trunk native VLAN numbers.

Without the add keyword, IOS replaces the permitted set and can remove VLANs 10 and 20.

That configures access VLAN membership rather than adding one allowed VLAN on the existing trunk.

Native-VLAN assignment does not append VLAN 40 to the allowed set.

The observed inconsistency is in tagged Ethernet VLAN encapsulation, which precedes any routed IP next-hop selection.

Native-VLAN settings primarily govern untagged ingress/egress; a wrong tag ID requires examining the tagged 802.1Q metadata.

PHY negotiation cannot explain an otherwise healthy tagged frame being classified into an unexpected VLAN.

Native VLAN applies to 802.1Q trunk handling, not the access VLAN assigned to untagged printer frames here.

SVIs provide Layer 3 gateways; their IP assignments do not override the access switchport VLAN membership.

The untagged printer arrives on its own access interface, which maps that frame into its configured access VLAN.

An untagged frame arriving on the trunk is classified using that trunk’s native VLAN, not another port’s access VLAN.

A trunk with native VLAN 99 classifies untagged traffic as VLAN 99, absent special tagging/drop policy.

The frame is explicitly untagged and therefore has no VLAN identifier in a tag to inspect.

A tag placed after the FCS would not use the specified Ethernet header format; the original FCS must be recalculated when the header changes.

The source MAC remains a 48-bit Layer 2 source address. The VLAN tag is an additional four bytes, not a replacement for the source address.

VLAN membership is carried in an 802.1Q Ethernet tag rather than inside the IP packet; this applies even to non-IP payloads.

A native VLAN edit does not fix an explicit allowed-VLAN exclusion that filters VLAN 60 traffic.

Management addressing does not restore the missing Layer 2 trunk forwarding allowance.

Spanning-tree changes are unnecessary and risky when the stated root cause is an allowlist omission.

VLAN creation/membership does not prove the tagged VLAN is permitted and STP-forwarding on the uplink.

An up link with a correct speed can still filter a tagged VLAN because of allowed/active or STP forwarding status.

A configured trunk can exclude VLAN 100; the requested fields are the actual allowed/active/forwarding lists.