CCNP Switch 1

Pregunta 1 de 49

1

A switch was added into the production network to increase port capacity. A network engineer is configuring the switch for DHCP snooping and IP Source Guard, but is unable to configure ip verify source under several of the interfaces. Which Option is the cause of the problem?

Selecciona una de las siguientes respuestas posibles:

Cisco Discovery Protocol v2 carries native VLAN information, but v1 does not
Cisco Discovery Protocol v1 carries native VLAN information, but v2 does not
Cisco Discovery Protocol v1 and v2 carry native VLAN information
Cisco Discovery Protocol v3 carries native VLAN information, but versions 1 and 2 do not.

Explicación

Pregunta 2 de 49

1

What is the maximum number of virtual MAC addresses that GLBP allows per group

Selecciona una de las siguientes respuestas posibles:

6
4
2
8

Explicación

Pregunta 3 de 49

1

A Network engineer wants to analyze all incoming and outgoing packets for an interface that is connected to an access switch. Which three items must be configured to mirror traffic to a packet sniffer that is connected to the distributions switch?

Selecciona una o más de las siguientes respuestas posibles:

A monitor session on the distribution switch with remote SPAN VLAN as the source and physical interface as the destination.
A monitor session on the access switch with a physical interface source and the remote SPAN VLAN as the destination
A monitor session on the distribution switch with a physical interface as the source and a physical interface as the destination
A remoter SPAN VLAN on the distribution and access layer switch
A monitor session on the distribution switch with a physical interface as the source and the remote SPAN VLAN as the destination.
A monitor session on the access switch with a remote SPAN VLAN source and the physical interface as the destination

Explicación

Pregunta 4 de 49

1

Which statement about using native VLAN's to carry untagged frames is true?

Selecciona una de las siguientes respuestas posibles:

Cisco Discovery Protocol v2 carries native VLAN information, but v1 does not
Cisco Discovery Protocol v1 carries native VLAN information, but v2 does not
Cisco Discovery Protocol v1 and v2 carry native VLAN information
Cisco Discovery Protocol v3 carries native VLAN information, but versions 1 and 2 do not.

Explicación

Pregunta 5 de 49

1

When you configure a private VLAN, which type of port must you configure the gateway router port on?

Selecciona una de las siguientes respuestas posibles:

Community port
Access port
Promiscuous port
Isolated port

Explicación

Pregunta 6 de 49

1

What is the result of the configuration?

Selecciona una de las siguientes respuestas posibles:

The EtherChannels would not form because the load-balancing method must match on the devices
The EtherChannels would form but network loops would occur because the load-balancing methods do not match
The EtherChannels would form and function properly even though the load-balancing and EtherChannel modes do not match
The EtherChannel would form and both devices would use the dst-ip load-balancing method because Switch1 is configured with EtherChannel mode active.

Explicación

Pregunta 7 de 49

1

How do you configure loop guard on a Cisco switch?

Selecciona una de las siguientes respuestas posibles:

(config-if)#spanning-tree loop
(config-if)#spanning-tree guard loop
(config-if)#spanning-tree loop guard default
(config-if)#spanning-tree loop-guard default
(config-if)#spanning-tree guard

Explicación

Pregunta 8 de 49

1

Which option is the maximum frame size for an 802.1Q frame?

Selecciona una de las siguientes respuestas posibles:

64 bytes
1518 bytes
1522 bytes
68 bytes

Explicación

Pregunta 9 de 49

1

After the recent upgrade of the switching infrastructure, the network engineer notices that the port roles that were once blocking are now defined as alternate and backup. What is the reason for this change?

Selecciona una de las siguientes respuestas posibles:

The administrator has defined the switch as the root in the STP domain.
The new switches are using RSTP instead of legacy IEEE 802.1D STP
IEEE 802.1D STP and PortFast have been configured by default on all newly implemented Cisco Catalyst switches.
The port roles have been adjusted based on the interface bandwidth and timers of the new Cisco Catalyst switches.

Explicación

Pregunta 10 de 49

1

Private VLANs (PVLANs) have two secondary VLAN types.

Selecciona una o más de las siguientes respuestas posibles:

Community
Primary
Isolated
Promiscuous

Explicación

Pregunta 11 de 49

1

Select a valid VRRP configuration from a list of possible configurations. Choose 3

Selecciona una o más de las siguientes respuestas posibles:

vrrp [group number] priority [priority]
vrrp [grou-number] preempt
standby [group number] preempt
standby [group number priority [priority]
vrrp [group-number] ip [ip-address]

Explicación

Pregunta 12 de 49

1

Which statement about Cisco Discovery Protocol configuration on a Cisco switch is true?

Selecciona una de las siguientes respuestas posibles:

CDP is enabled by default and can be disabled globally with the command no cdp enable
CDP is disabled by default and can be enabled globally with the command cdp enable
CDP is enabled by default and can be disabled globally with the command no cdp run
CDP is disabled by default and can be enabled globally with the command cdp run

Explicación

Pregunta 13 de 49

1

Which description of the effect of entering the switch port trunk allowed vlan 2, 3, 4, command on FastEthernet0/2 is true?

Selecciona una de las siguientes respuestas posibles:

The command in unsupported on a trunk where VLANs are already being pruned manually
The two workstations continue to communicate without a default gateway configured
The running configuration displays switch port trunk allowed vlan 1 - 5 for Fa0/2
The two workstations stop communicating because they are on VLAN 5. Which is not allowed on the trunk

Explicación

Pregunta 14 de 49

1

Switch A, B and C are trunked together and have been properly configured for VTP. Switch B has all VLANs but Switch C in not receiving traffic from certian VLANs. What would cause this issue?

Selecciona una de las siguientes respuestas posibles:

The VTP version number of Switch B is higher that that of Switch A
VTP Pruning is configured globally on all switches and it removed VLANs from the trunk interface that is connected to Switch C.
A VTP authentication mismatch occurred between Switch A and Switch B
The trunk between Switch A and Switch B is misconfigured

Explicación

Pregunta 15 de 49

1

When using the sh int trunk command there is no output. What is wrong.
int faX/X
switchport trunk vlan x, x,x,x
switchport mode trunk
exit
sh vlan
VLAN name status ports
1 default active Fa0/1, Fa0/3, Fa0/3, FaX/X
sh int trunk

Selecciona una de las siguientes respuestas posibles:

The other side is configured as an access port
the link is down
the interface needs the no shut command
it is mission the switchport command

Explicación

Pregunta 16 de 49

1

EtherChannel guard misconfig is configured on a switch, which technology supports that?

Selecciona una de las siguientes respuestas posibles:

STP
LACP
Port Security
PagP

Explicación

Pregunta 17 de 49

1

What happens at an access port with a tagged packet is received with a VLAN ID of an access port?

Selecciona una de las siguientes respuestas posibles:

The tag is removed and the packet is forwarded on the VLAN of the access port
The packet is dropped
The tag is removed and the packet is forwarded to the VLAN mentioned in the tag
The tag is removed and the packet is forwarded on the VLAN of the trunk port

Explicación

Pregunta 18 de 49

1

Which Authentication service is needed to configure 802.1x?

Selecciona una de las siguientes respuestas posibles:

TACACS+
RADIUS with EAP Extention
RADIUS using VSA
RADIUS with CoA

Explicación

Pregunta 19 de 49

1

All interfaces are active. DSW2 has not become the active device for the VLAN 103 HSRP group. As related to the VLAN 103 HSRP group, what can be done to make the group function properly?

Selecciona una de las siguientes respuestas posibles:

On DSW2, increase the decrement value in the track command to a value greater than 10 and less than 50
On DSW1 disable preempt
On DSW1 decrease the priority value to a value less than 190 and greater than 150.
On DSW2 increase the priority value to a value greater than 200 and less than 250.

Explicación

Pregunta 20 de 49

1

Which set of configurations will result in all ports on both switches successfully bundling into an EtherChannel?

Selecciona una de las siguientes respuestas posibles:

switch 1 channel-group 1 mode desirable, switch 2 channel-group 1 mode passive
switch 1 channel-group 1 mode active, switch 2 channel-group 1 mode auto
switch 1 channel-group 1 mode desirable, switch 2 channel-group 1 mode auto
switch 1 channel-group 1 mode on, switch 2 channel-group 1 mode auto

Explicación

Pregunta 21 de 49

1

An Engineer is configuring EtherChannel between two switches and notices the console message on switch 2. Based on the output which option describes the reason for this error?

Selecciona una de las siguientes respuestas posibles:

The port channel interface numbers do not match
Switch 2 has too many member ports configured
The EtherChannel protocols do not match
Switch 1 does not have enough member ports configured

Explicación

Pregunta 22 de 49

1

Which statement about LLDP-MED is true?

Selecciona una de las siguientes respuestas posibles:

LLDP-MED is an extension to LLDP that operates between endpoint devices and network devices.
LLDP-MED is an extension to LLDP that operates between routers that run BGP
LLDP-MED is an extension to LLDP that operates only between network devices
LLDP-MED is an extention to LLDP that operates only between endpoint devices

Explicación

Pregunta 23 de 49

1

After UDLD is implemented a Network Administrator notices that one port stops received UDLD packets. This ports continues to re-establish unit after eight failed retries. The port then transitions into the errdisable state. Which option describes what causes the port to go into the errdisable state?

Selecciona una de las siguientes respuestas posibles:

UDLD port is configured in aggressive mode
Normal UDLD operations that prevent traffic loops
UDLD timers are inconsistent
UDLD port is enabled globally

Explicación

Pregunta 24 de 49

1

An engineer is configuring EtherChannel between two switches when he notices the error message on Switch 2 (channel-misconfiguring error), based on this output what is the problem?

Selecciona una de las siguientes respuestas posibles:

The EtherChannel interface of Switch 2 in not configured
The EtherChannel protocol on Switch 1 is not correct
The EtherChannel interface of Switch 1 is not configured
The EtherChannel on the Switch 1 is using incorrect member ports

Explicación

Pregunta 25 de 49

1

Which statements about SPAN source and destination ports during an active session are true? Choose 2

Selecciona una o más de las siguientes respuestas posibles:

The source port can be monitored in multiple SPAN sessions
The destination port can be a destination in multiple SPAN sessions
The destination port does not participate in STP
The source port can be only an Ethernet physical port
You can mix individual source ports and source VLANs within a singe session.

Explicación

Pregunta 26 de 49

1

While troubleshooting a network outage, a network engineer discovers an unusually high level of broadcast traffic coming from one of the switch interfaces. Which option decreases consumption of bandwidth used by broadcast traffic?

Selecciona una de las siguientes respuestas posibles:

Integrated routing and bridging
SDM routing
Dynamic ARP inspection
Cisco IOS parser
Storm control

Explicación

Pregunta 27 de 49

1

A network engineer wants to make sure that an access switch will never become a spanning tree root for VLAN 5. What action will accomplish this task?

Selecciona una de las siguientes respuestas posibles:

Apply root guard to all outgoing neighbor interfaces
disable STP globally
enable MSTP and use a different revision number than all other switches
adjust STP priority to the maximum value

Explicación

Pregunta 28 de 49

1

What is the maximum number of VLANs that can be assigned to an access switchport without a voice VLAN?

Selecciona una de las siguientes respuestas posibles:

0
1
2
1024

Explicación

Pregunta 29 de 49

1

How many bytes are added to each frame as a result of the configuration?

Selecciona una de las siguientes respuestas posibles:

4-bytes except the native VLAN
8-bytes except the native VLAN
4-bytes including the native VLAN
8-bytes including the native VLAN

Explicación

Pregunta 30 de 49

1

Which technique automatically limits VLAN traffic to only the switches that require it?

Selecciona una de las siguientes respuestas posibles:

access list
VTP pruning
PBR
DTP in non-negotiate

Explicación

Pregunta 31 de 49

1

A network is running VTPv2. After verifying all VTP setting the network engineer notices that the new switch is not receiving the list of VLANs from the server. Which action resolves this problem?

Selecciona una de las siguientes respuestas posibles:

Reload the new switch
Reload the VTP server
Restart the VTP process on the new switch
Verify connected trunk ports

Explicación

Pregunta 32 de 49

1

An administrator recently configured all ports for rapid transition using PortFast. After testing it has been determined that several ports are not transitioning as they should. What is the reason for this?

Selecciona una de las siguientes respuestas posibles:

The STP root bridge selection is forcing key ports to remain in non-rapid transitioning mode
RSTP has been enabled per interface and not globally.
STP is unable to achieve rapid transition for trunk links
The switch does not have the processing power to ensure rapid transition for all ports.

Explicación

Pregunta 33 de 49

1

What is the effect of configuring the following command on a switch?
switch(config)# spanning-tree portfast bpdpufilter default

Selecciona una de las siguientes respuestas posibles:

If BPDUs are received by a port configured for PortFast, the port transitions to the forwarding state.
If BPDUs are received by a port configured for Portfast then PortFast is disabled and the BPDUs are processed normally.
The command enables BPDU filtering on all ports regardless of whether they are configured for BPDU filtering at the interface level.
If BPDUs are received by a port configured for PortFast, they are ignored and none are sent.

Explicación

Pregunta 34 de 49

1

When IP Source Guard with source IP filtering is enabled on an interface which feature must be enabled on the access VLAN for that interface?

Selecciona una de las siguientes respuestas posibles:

Spanning-tree portfast
Private VLAN
DHCP Snooping
Storm control

Explicación

Pregunta 35 de 49

1

A network engineer notices inconsistent CDP neighbors according to the diagram that is provided. The engineer notices only a single neighbor that uses CDP but it has several routing neighbor relationships. What would cause the output to show only the single neighbor?

Selecciona una de las siguientes respuestas posibles:

CEF is enabled locally
The routers are connected via a layer 2 switch
IP routing is disabled on neighboring devices
CDP advertisements are inconsistent between the local and remote devices.

Explicación

Pregunta 36 de 49

1

After configuring ne data VLANs 1020 through 1030 on the VTP server, a network engineer notices that none of the VTP clients are receiving the updates. What is the problem?

Selecciona una de las siguientes respuestas posibles:

VTP must be stopped and restarted on the server
After each update to the VTP server, it takes up to 4 hours to propagate
Another switch in the domain is higher revision number than the server
The VTP server must be reloaded
The VTP version number must be set to version 3

Explicación

Pregunta 37 de 49

1

Which VLAN range is eligible to be pruned when a network engineer enables VTP pruning on a switch?

Selecciona una de las siguientes respuestas posibles:

VLANs 1-1001
VLANs 1-4094
VLANs 2-1001
VLANs 2-4094

Explicación

Pregunta 38 de 49

1

An access switch at a remote location is connected to the spanning-tree root with redundant uplinks. A network engineer notices that there are issues with the physical cabling of the current root port. The engineer decides to force the secondary link to be the desired forwarding root port.

What actions accomplish this task?

Selecciona una de las siguientes respuestas posibles:

Change the link-type to point to point
Adjust the secondary link to have a lower priority than the primary link
Enable RSTP to converge using the secondary link
Applu a BPDU filter on the primary interface of the remote switches.

Explicación

Pregunta 39 de 49

1

What condition was matched during an EtherChannel configuration? Choose two

Selecciona una o más de las siguientes respuestas posibles:

Spanning tree port priority
Interface description
Trunk allow VLAN
Spanning tree cost
Trunk mode

Explicación

Pregunta 40 de 49

1

When SDM templates are configured which action must be performed for the configuration to take effect?

Selecciona una de las siguientes respuestas posibles:

shutdown
write memory
reload
backup config

Explicación

Pregunta 41 de 49

1

In a switch stack environment what is the total bidirectional traffic flow between two logical counter-rotating paths?

Selecciona una de las siguientes respuestas posibles:

32 Gbps
64 Gbps
16 Gbps
128 Gbps

Explicación

Pregunta 42 de 49

1

The command storm-control broadcast level 75 65 is configured under the switch port connected to the corporate mail server. In which three ways does this command impact the traffic? Choose Three

Selecciona una o más de las siguientes respuestas posibles:

Only broadcast traffic is limited by this particular storm control configuration
The switch resumes forwarding broadcasts when they are below 65% of bandwidth
Multicast traffic is dropped at 65% and broadcast traffic is dropped at 75% of the total interface bandwidth
The switchport is disabled when unicast traffic reaches 75% of the total interface bandwidth
SNMP traps are sent by default when broadcast traffic reaches 65% of the lower-level threshold
The switch drops broadcasts when they reach 75% of bandwidth

Explicación

Pregunta 43 de 49

1

Pilot testing of the new switching infrastructure finds that when the root port is lost, STP immediately replaces the root port with an alternative port. Which spanning-tree technology is used to accomplish backup root port selection?

Selecciona una de las siguientes respuestas posibles:

PVST+
PortFast
Loop Guard
UDLD
UplinkFast
BackboneFast

Explicación

Pregunta 44 de 49

1

During routine maintenance it became necessary to shut down the ge1/0/1 interface on DSW1. All other interfaces were up. During this time DSW1 remained the active device for the VLAN 102 HSRP group. You have determined that there is an issue with the decrement value in the track command for the VLAN 102 HSRP group. What needs to be done to make the group function properly?

Selecciona una de las siguientes respuestas posibles:

The decrement value on DSW1 should be greater than 11 and less than 19
The decrement value on DSW1 should be greater than 5 and less than 15
The decrement value on DSW1 should be greater than 195 and less than 205
The decrement value on DSW1 should be greater than 190 and less than 200
The decrement value on DSW1 should be greater than 9 and less than 15

Explicación

Pregunta 45 de 49

1

After port security is deployed throughout an enterprise campus, the network team has been overwhelmed with port reset requests. They decide to configure the network to automate the process of re-enabling user ports. Which commands accomplish this task?

Selecciona una de las siguientes respuestas posibles:

switch(config)# switchport port-security protect
switch(config)# switchport port-security aging type inactivity
switch(config)# errdisable recover interval 180
switch(config)# errdisable recovery cause security-violation
switch(config)# errdisable recovery cause psecure-violation

Explicación

Pregunta 46 de 49

1

The users in an engineering department that connect to the same access switch cannot access the network. The network engineer found that the engineering VLAN is missing from the database. What action resolves this problem?

Selecciona una de las siguientes respuestas posibles:

Disable VTP purning and disable 802.1q
Update the VTP revision number
Change VTP mode to server and enable 802.1q
Enable VTP pruning and disable 802.1q

Explicación

Pregunta 47 de 49

1

What effect does the MAC address-table aging-time 180 command have on the MAC address table?

Selecciona una de las siguientes respuestas posibles:

The MAC address-table will be flushed every 3 min.
ARP requests will be processed less frequently by the switch
This is how long a dynamic MAC address will remain in the CAM table
The MAC address-table will hold addresses 180 seconds longer than the default of 10 min
The default timeout period will be 360 seconds

Explicación

Pregunta 48 de 49

1

What is the command for configuring root guard?

Selecciona una de las siguientes respuestas posibles:

(config-if)# spanning-tree guard root
(config)# spanning-tree root guard
(config-if)# spanning tree guard root
(config-if)# spanning tree root guard
(config)# spanning tree guard root

	Creado por Tyson Mckay hace casi 6 años

CCNP Switch Exam 50

CCNP Switch 1

CCNP Switch 1

Pregunta 1 de 49

A switch was added into the production network to increase port capacity. A network engineer is configuring the switch for DHCP snooping and IP Source Guard, but is unable to configure ip verify source under several of the interfaces. Which Option is the cause of the problem?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 49

What is the maximum number of virtual MAC addresses that GLBP allows per group

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 49

A Network engineer wants to analyze all incoming and outgoing packets for an interface that is connected to an access switch. Which three items must be configured to mirror traffic to a packet sniffer that is connected to the distributions switch?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 49

Which statement about using native VLAN's to carry untagged frames is true?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 49

When you configure a private VLAN, which type of port must you configure the gateway router port on?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 49

What is the result of the configuration?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 49

How do you configure loop guard on a Cisco switch?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 49

Which option is the maximum frame size for an 802.1Q frame?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 49

After the recent upgrade of the switching infrastructure, the network engineer notices that the port roles that were once blocking are now defined as alternate and backup. What is the reason for this change?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 49

Private VLANs (PVLANs) have two secondary VLAN types.

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 49

Select a valid VRRP configuration from a list of possible configurations. Choose 3

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 49

Which statement about Cisco Discovery Protocol configuration on a Cisco switch is true?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 49

Which description of the effect of entering the switch port trunk allowed vlan 2, 3, 4, command on FastEthernet0/2 is true?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 49

Switch A, B and C are trunked together and have been properly configured for VTP. Switch B has all VLANs but Switch C in not receiving traffic from certian VLANs. What would cause this issue?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 49

When using the sh int trunk command there is no output. What is wrong. int faX/X switchport trunk vlan x, x,x,x switchport mode trunk exit sh vlan VLAN name status ports 1 default active Fa0/1, Fa0/3, Fa0/3, FaX/X sh int trunk

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 49

EtherChannel guard misconfig is configured on a switch, which technology supports that?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 49

What happens at an access port with a tagged packet is received with a VLAN ID of an access port?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 49

Which Authentication service is needed to configure 802.1x?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 49

All interfaces are active. DSW2 has not become the active device for the VLAN 103 HSRP group. As related to the VLAN 103 HSRP group, what can be done to make the group function properly?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 49

When using the sh int trunk command there is no output. What is wrong.
int faX/X
switchport trunk vlan x, x,x,x
switchport mode trunk
exit
sh vlan
VLAN name status ports
1 default active Fa0/1, Fa0/3, Fa0/3, FaX/X
sh int trunk

What is the effect of configuring the following command on a switch?
switch(config)# spanning-tree portfast bpdpufilter default