What happens to switch ports after the VLAN to which they are assigned is deleted

How is traffic routed between multiple VLANs on a multilayer switch?

Traffic is routed via physical interfaces.

Traffic is routed via internal VLAN interfaces.

Traffic is broadcast out all physical interfaces.

Traffic is routed via subinterfaces.

¡ Correcto ! ¡ Incorrecto !

Multilayer switches can perform inter-VLAN routing by the use of internal VLAN interfaces. External physical interfaces can receive traffic but are not necessary for routing functions. When routing between VLANs, any broadcast traffic that is received on a VLAN would remain on ports that are members of that VLAN. Subinterfaces are not usable for inter-VLAN routing on multilayer switches.

Refer to the exhibit. A router-on-a-stick configuration was implemented for VLANs 15, 30, and 45, according to the show running-config command output. PCs on VLAN 45 that are using the 172.16.45.0 /24 network are having trouble connecting to PCs on VLAN 30 in the 172.16.30.0 /24 network. Which error is most likely causing this problem?

The GigabitEthernet 0/0 interface is missing an IP address.

The wrong VLAN has been configured on GigabitEthernet 0/0.45.

The command no shutdown is missing on GigabitEthernet 0/0.30.

There is an incorrect IP address configured on GigabitEthernet 0/0.30.

¡ Correcto ! ¡ Incorrecto !

The subinterface GigabitEthernet 0/0.30 has an IP address that does not correspond to the VLAN addressing scheme. The physical interface GigabitEthernet 0/0 does not need an IP address for the subinterfaces to function. Subinterfaces do not require the no shutdown command.

How are IP addressing designs affected by VLAN implementations?

Each VLAN must have a different network number

Each VLAN must have a different subnet mask.

VLANs do not use a broadcast address.

VLANs do not support VLSM.

¡ Correcto ! ¡ Incorrecto !

Each VLAN requires its own network number, broadcast address, and valid IP addresses because each VLAN is a separate network. IP addressing schemes are frequently designed with the VLAN numbers as part of the design.

Refer to the exhibit. A network administrator is verifying the configuration of inter-VLAN routing. Users complain that PC2 cannot communicate with PC1. Based on the output, what is the possible cause of the problem?

The encapsulation dot1Q 5 command contains the wrong VLAN.

Gi0/0 is not configured as a trunk port.

The command interface GigabitEthernet0/0.5 was entered incorrectly.

The no shutdown command is not entered on subinterfaces.

There is no IP address configured on the interface Gi0/0.

¡ Correcto ! ¡ Incorrecto !

In router-on-a-stick, the subinterface configuration should match the VLAN number in the encapsulation command, in this case, the command encapsulation dot1Q 10 should be used for VLAN 10. Since subinterfaces are used, there is no need to configure IP on the physical interface Gi0/0. The trunk mode is configured on the switch port that connects to the router. The subinterfaces are turned on when they are added.

Refer to the exhibit. Communication between the VLANs is not occurring. What could be the issue?

The Gi1/1 switch port is not in trunking mode.

The wrong port on the router has been used.

Default gateways have not been configured for each VLAN.

A duplex issue exists between the switch and the router.

¡ Correcto ! ¡ Incorrecto !

The subinterfaces could not have an IP address unless the encapsulation mode had been configured. When a duplex issue exists, communication can still occur, but it is at a slower than optimum rate.

Under which two occasions should an administrator disable DTP while managing a local area network? (Choose two.)

Por favor, selecciona 2 respuestas correctas

on links that should not be trunking

when a neighbor switch uses a DTP mode of dynamic auto

on links that should dynamically attempt trunking

when a neighbor switch uses a DTP mode of dynamic desirable

when connecting a Cisco switch to a non-Cisco switch

¡ Correcto ! ¡ Incorrecto !

Cisco best practice recommends disabling DTP on links where trunking is not intended and when a Cisco switch is connected to a non-Cisco switch. DTP is required for dynamic trunk negotiation.

Which two events will cause the VTP revision number on a VTP server to change? (Choose two.)

Por favor, selecciona 2 respuestas correctas

adding VLANs

changing the VTP domain name

rebooting the switch

changing the switch to a VTP client

changing interface VLAN designations

¡ Correcto ! ¡ Incorrecto !

Changing the VTP domain name always resets the VTP revision number to 0. This is an important step in adding switches to an existing VTP domain no matter what VTP mode the switch uses.

Which command should the network administrator implement to prevent the transfer of DTP frames between a Cisco switch and a non-Cisco switch?

S1(config-if)# switchport mode access

S1(config-if)# switchport mode dynamic desirable

S1(config-if)# switchport nonegotiate

S1(config-if)# switchport mode trunk

S1(config-if)# switchport trunk allowed vlan none

¡ Correcto ! ¡ Incorrecto !

To prevent DTP frames from being generated by the interface of a Cisco switch, use the S1(config-if)# switchport nonegotiate command. DTP is Cisco proprietary and not usable by other vendors.

Where is the vlan.dat file stored on a switch?

in NVRAM

in RAM

on the externally attached storage media or internal hard drive

in flash memory

¡ Correcto ! ¡ Incorrecto !

Normal range VLAN configurations are stored within a VLAN database file, called vlan.dat, which is located in the flash memory of the switch.

Given the following configuration, which two statements are true? (Choose two.)
switch(vlan)# vtp version 2
switch(vlan)# vtp mode server
switch(vlan)# vtp domain Cisco
switch(vlan)# vtp password mypassword

Por favor, selecciona 2 respuestas correctas

This switch can send and receive advertisements from only the Cisco domain.

The password will prevent unauthorized routers from participating in the Cisco domain.

This switch maintains a full list of all VLANs and can create VLANs, but cannot delete or modify existing VLANs.

This switch can advertise its VLAN configuration to other switches in the Cisco domain only, but can receive advertisements from other domains.

This switch can create, modify, and delete all VLANs within the Cisco domain

¡ Correcto ! ¡ Incorrecto !

A switch in VTP server mode can create, modify, and delete VLANs as well as transmit that information (if the switch has the highest VTP configuration revision number) to other switches in the same VTP domain.

Fill in the blank. In a Cisco switch, the extended range VLAN information is stored in the [ _ ] file.

¡ Correcto ! ¡ Incorrecto !

Extended range VLAN information is stored in the running configuration, unlike normal range VLANs which are stored in the vlan.dat file in flash. Extended range VLANs have other differences from normal range VLANs as well.​

Refer to the exhibit. After attempting to enter the configuration that is shown in router RTA, an administrator receives an error and users on VLAN 20 report that they are unable to reach users on VLAN 30. What is causing the problem?

The no shutdown command should have been issued on Fa0/0.20 and Fa0/0.30.

There is no address on Fa0/0 to use as a default gateway.

Dot1q does not support subinterfaces.

RTA is using the same subnet for VLAN 20 and VLAN 30.

¡ Correcto ! ¡ Incorrecto !

The IP 192.168.2.49/27 and 192.168.3.62/27 belong to the same subnet of 192.168.3.32/27. Valid host IPv4 addresses include 192.168.3.33 to 192.168.3.62.

Refer to the exhibit. The switch does the routing for the hosts that connect to VLAN 5. If the PC accesses a web server from the Internet, at what point will a VLAN number be added to the frame?

point E

point A

No VLAN number is added to the frame in this design.

point B

point D

point C

¡ Correcto ! ¡ Incorrecto !

The switch has an SVI configured in VLAN 5 and is routing for VLAN 5. With this design no trunking is necessary. The switch port to which the PC attaches is in VLAN 5, so no trunking is needed there. The connection between the switch and the router is a routed port on the switch, so an IP address can be assigned and no trunking is needed. The connection from the router to the Internet is a serial WAN connection that requires no trunking.

While configuring inter-VLAN routing on a multilayer switch, a network administrator issues the no switchport command on an interface that is connected to another switch. What is the purpose of this command?

to provide an access link that tags VLAN traffic

to create a switched virtual interface

to create a routed port for a single network

to provide a static trunk link

¡ Correcto ! ¡ Incorrecto !

When a Layer 2 interface on a multilayer switch is configured with the no switchport command, it becomes a routed port. A routed port is configured with an IP address for a specific subnet.

Match the DTP mode with its function. (Not all options are used.)

passively waits for the neighbor to initiate trunking => dynamic auto
requires manual configuration of trunking or nontrunking => negotiate
actively attempts to convert the link to a trunk => dynamic desirable
permanent trunking mode => trunk

¡ Correcto ! ¡ Incorrecto !

The dynamic auto mode makes the interface become a trunk interface if the neighboring interface is set to trunk or desirable mode. The dynamic desirable mode makes the interface actively attempt to convert the link to a trunk link. The trunk mode puts the interface into permanent trunking mode and negotiates to convert the neighboring link into a trunk link. The nonegotiate mode prevents the interface from generating DTP frames.

What happens to switch ports after the VLAN to which they are assigned is deleted?

The ports stop communicating with the attached devices.

The ports are assigned to VLAN1, the default VLAN.

The ports are placed in trunk mode.

The ports are disabled.

¡ Correcto ! ¡ Incorrecto !

The affected ports must be reconfigured for an active VLAN.

What is a characteristic of VTP?

Switches in VTP transparent mode revert back to VTP server mode after a reboot.

Switches in VTP transparent mode forward VTP advertisements.

Switches in VTP client mode store VLAN information in NVRAM.

Switches in VTP server mode cannot be updated by switches in VTP client mode.

¡ Correcto ! ¡ Incorrecto !

All switches in the same VTP domain forward advertisements to other switches.

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question. Fill in the blank. Do not use abbreviations.
Which command is missing on the Layer 3 switch to restore the full connectivity between PC1 and the web server? (Note that typing no shutdown will not fix this problem.) [ _ ]

ip address 192.168.20.1 255.255.255.0

¡ Correcto ! ¡ Incorrecto !

On the Layer 3 switch, an SVI has to be explicitly created for each VLAN. PC1 belongs to VLAN 10, which is already created on the Layer 3 switch and with an IP address assigned. The web server belongs to VLAN 20. The interface vlan 20 command was already entered on the Layer 3 switch, but with no IP address assigned to it. So the ip address 192.168.20.1 255.255.255.0 command has to be entered in the interface vlan 20 interface mode.​ To test the connectivity between the PC1 and the web server, access PC1, select the Desktop tab, click on the Web Browser application and enter on the URL box “www.webserver.com”. A message “Congratulations! You’ve got it!​” will be displayed.​

Which command displays the encapsulation type, the voice VLAN ID, and the access mode VLAN for the Fa0/1 interface?

show interfaces trunk

show interfaces Fa0/1 switchport

show vlan brief

show mac address-table interface Fa0/1

¡ Correcto ! ¡ Incorrecto !

The show interfaces switchport command displays the following information for a given port:
Switchport
Administrative Mode
Operational Mode
Administrative Trunking Encapsulation
Operational Trunking Encapsulation
Negotiation of Trunking
Access Mode VLAN
Trunking Native Mode VLAN
Administrative Native VLAN tagging
Voice VLAN

Which two VTP parameters must be identical on all switches in the network in order to participate in the same VTP domain? (Choose two.)

Por favor, selecciona 2 respuestas correctas

VTP domain name

VTP domain password

VTP client mode

VTP transparent mode

VTP server mode

VTP revision number

¡ Correcto ! ¡ Incorrecto !

VTP updates are sent to other switches in the same domain with the same password. The configuration revision number is used to determine whether a switch keeps its existing VLAN database or updates it with the new information.

Refer to the exhibit. A network administrator is configuring inter-VLAN routing. However, the communication between VLAN 10 and VLAN 20 fails. Based on the output of the show vlan command, what is the cause of the problem?

Gi1/1 and Gi1/2 are not configured as trunk mode.

Gi1/1 and Gi1/2 are not assigned to their respective VLANs

The IP addresses on Gi0/0 and Gi0/1 are switched by mistake.

The IP addresses on Gi0/0 and Gi0/1 are not on the same network.

¡ Correcto ! ¡ Incorrecto !

Because two physical interfaces on the router are connected to two physical ports on a switch, this is a legacy inter-VLAN configuration. With legacy inter-VLAN, the ports on the switch that are connected to the router need to be in access mode and assigned their respective VLANs. As shown in the display, these two ports are still in VLAN 1. The IP address on the router interface can be configured as needed, as long as the devices on the same VLAN are in the same network.

Which three actions can cause problems with a VTP implementation? (Choose three.)

Por favor, selecciona 3 respuestas correctas

not using any VTP passwords on any switches

using a non-trunk link to connect switches

using non-Cisco switches

configuring all switches to be in VTP server mode

having a VTP transparent switch in between a VTP server switch and a VTP client switch (all switches in the same VTP domain)

using lowercase on one switch and uppercase on another switch for domain names

¡ Correcto ! ¡ Incorrecto !

Besides domain name, other issues to check are VTP versions, VTP password, and revision number before inserting a switch into any network where VTP is active.

What is a disadvantage of using multilayer switches for inter-VLAN routing?

Multilayer switches are limited to using trunk links for Layer 3 routing.

Multilayer switches have higher latency for Layer 3 routing.

Multilayer switches are more expensive than router-on-a-stick implementations.

Spanning tree must be disabled in order to implement routing on a multilayer switch.

¡ Correcto ! ¡ Incorrecto !

The main disadvantage of the multilayer switches is their higher cost. Because both routing and switching are done in hardware, multilayer switches are faster than router-on-a-stick.

What is a characteristic of a routed port on a Layer 3 switch?

It cannot have an IP address assigned to it.

It is not assigned to a VLAN.

It is commonly used as a WAN link.

It supports trunking.

¡ Correcto ! ¡ Incorrecto !

A routed port on a Layer 3 switch is commonly used for connecting between distribution and core layer switches or between a Layer 3 switch and a router. This port does not get VLAN or trunking commands assigned to it. Instead, the port is programmed with an IP address. This is commonly used when static routing is configured on the switch or when a routing protocol is being run between the Layer 3 switch and the router or another Layer 3 switch.

A switch is participating in a VTP domain and configured as a VTP server. The switch needs to propagate VLAN 10 (used by the Manufacturing department) throughout the VTP domain, but does not have any directly connected hosts using that particular VLAN. Which configuration would satisfy this requirement?
interface fa0/24
switchport mode access
switchport access vlan 10

vtp mode server
vtp password Manufacturing

vlan 10
name Manufacturing
exit

interface g0/1
switchport mode trunk
switchport trunk native vlan 10

interface fa0/24
switchport mode access
switchport access vlan 10

¡ Correcto ! ¡ Incorrecto !

The best practice to add a VLAN to the VLAN database with no local hosts to be in that VLAN is to configure that VLAN (vlan 10) with its name (name Manufacturing) and use the exit command to complete the configuration. Do not assign any switch interfaces to that VLAN.

What happens to switch ports after the VLAN is deleted?

"When you delete a specified VLAN, the ports associated to that VLAN are shut down and no traffic flows. However, the system retains all the VLAN-to-port mapping for that VLAN, and when you reenable, or recreate, the specified VLAN, the system automatically reinstates all the original ports to that VLAN."

When the default VLAN is deleted its ports are?

the ports are "suspended" and this is signalled by orange LED. They are not operational because members of a not existing vlan. So we can say that IOS is more user friendly when creating a new Vlan then when removing one. you said ports are "suspended" if VLAN is deleted.

What happens to switch ports after the villain?

The ports are disabled. The ports are placed in trunk mode. The ports are assigned to VLAN1, the default VLAN. The ports stop communicating with the attached devices.

Which VLAN on a switch Cannot be renamed or deleted?

VLAN 1 has all the features of any VLAN, except it cannot be renamed or deleted. By default, all Layer 2 control traffic is associated with VLAN 1. A native VLAN is assigned to an 802.1Q trunk port.