802.1Q Protocol Quiz (Online) - Networkwalks Academy

IEEE 802.1Q (sometimes referred to as 1Q or DOT1Q) is an industry standard based implementation of carrying traffic for multiple VLANs on a single trunking interface between two Ethernet switches like Cisco or Huawei switches

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Which protocol is used in redundant network topologies to avoid receiving multiple copies of the same frame?

Routing Information Protocol

Cisco Discovery Protocol

802.1q

Spanning Tree Protocol

When a Cisco switch receives untagged frames on a 802.1Q trunk port, which VLAN ID is the traffic switched to by default?

Management VLAN ID

Native VLAN ID

Unused VLAN ID

Data VLAN ID

When configuring a Router as part of a RoaS (Router-on-a-Stick) inter-VLAN Routing topology, where should the IP address be assigned?

To the sub-interface

To the VLAN

To the interface

To the SVI

Which one of these is a characteristic of the 802.1Q protocol?

It is used exclusively for tagging vlan frames and does not address network re-convergence following switched network topology changes

It modifies the 802.3 frame header and thus requires that the FCS be recomputed

It includes an 8-bit field which specifies the priority of a frame

It is a layer 2 messaging protocol which maintains vlan configurations across network

Which command is used to remove only VLAN 20 from a Cisco Switch?

Delete vlan.dat

Delete flash:vlan.dat

No switchport access vlan 20

No vlan 20

What is a disadvantage of using RoaS (Router-on-a-Stick) inter-VLAN Routing?

Requires the use of multiple router interfaces configured to operate as access links

Does not scale well beyond 50 VLANs

Does not support VLAN-tagged packets

Requires the use of more physical interfaces than legacy inter-VLAN routing

What is a characteristic of legacy inter-VLAN routing

Only one VLAN can be used in the topology

The user VLAN must be the same ID number as the management VLAN

The Router requires one Ethernet link for each VLAN

Inter-VLAN routing must be performed on a switch instead of a router

What is the benefit of using VLANs?

Improved IT staff efficiency

A reduction in the number of trunk links

Security, Cost reduction

End user satisfaction

An FE Port on a Cisco Switch is assigned to VLAN 30. If the command no switchport access vlan 30 is entered on this FE interface, what will happen?

An error message would be displayed

The FE Port will be returned to VLAN 1

The FE Port will be shutdown

VLAN 30 will be deleted

A high school uses VLAN15 for the laboratory network and VLAN30 for the faculty network. What is required to enable communication between these two VLANs while using the RoaS (Router-on-a-Stick) approach?

A multilayer switch is needed

A switch with a port that is configured as a trunk is needed when connecting to the router

Two groups of switches are needed, each with ports that are configured for one VLAN

A router with at least two LAN interfaces is needed

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