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

Native VLAN ID

Unused VLAN ID

Data VLAN ID

Management VLAN ID

A network administrator is determining the best placement of VLAN trunk links. Which two types of point-to-point connections utilize VLAN trunking?

Between a switch and a server that has an 802.1Q NIC

Between a switch and a network printer

Between a switch and a client PC

Between two switches that utilize multiple VLANs which do not have any common vlan

What happens to a port that is associated with VLAN 10 when the administrator deletes VLAN 10 from Cisco Switch?

The port goes back to the default VLAN

The port creates the VLAN again

The port becomes inactive

The port automatically associates itself with the native VLAN

Which characteristic matches extended range VLANs?

CDP can be used to learn and store these VLANs

VLANs are initialized from flash memory & they are commonly used in small networks

VLAN IDs exist between 1006 to 4094 & they are saved in the running-config file by default

VLANs are initialized from flash memory & they are commonly used in small networks

What is the benefit of using VLANs?

Security, Cost reduction

Improved IT staff efficiency

End user satisfaction

A reduction in the number of trunk links

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

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

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

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

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

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

802.1q

Routing Information Protocol

Spanning Tree Protocol

Cisco Discovery Protocol

A small college uses VLAN 10 for the classroom network and VLAN 20 for the office network. What is needed to enable communication between these two VLANs while using legacy inter-VLAN routing?

A Router with one VLAN interface is needed to connect to the SVI on a switch

A Router with at least two LAN interfaces should be used

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

A Switch with a port that is configured as trunk is needed to connect to a router

Which type of VLAN is used to designate which traffic is untagged when crossing a trunk port?

Native

Default

Management

Data

What is a characteristic of legacy inter-VLAN routing

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

Only one VLAN can be used in the topology

The Router requires one Ethernet link for each VLAN

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

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