CCNP Switch 4

Pregunta 1 de 56

1

If a network engineer applies the command "mac-address-table notification mac-move" on a Cisco switch port, when is the sys log message generated?

Selecciona una de las siguientes respuestas posibles:

When a new MAC address is removed from the content-addressable memory
When more than 64 MAC addresses are added to the content-addressable memory
When a new MAC address is added to the content-addressable memory
When a MAC address or host moves between different switch ports

Explicación

Pregunta 2 de 56

1

Which feature is automatically enabled when a voice VLAN is configured but not automatically disabled when a voice VLAN is removed?

Selecciona una de las siguientes respuestas posibles:

Portfast
Port-security
Spanning tree
Storm control

Explicación

Pregunta 3 de 56

1

Which statement describes one major issue that VTP can cause in an enterprise network when a new switch is introduced in the network in VTP mode server?

Selecciona una de las siguientes respuestas posibles:

It can cause a network-wide VLAN configuration change if the revision number on the new switch is higher.
It can cause network access ports to go into err-disable state.
It can cause a network-wide VLAN configuration change if the revision number on the new switch is lower.
It can cause routing loops.

Explicación

Pregunta 4 de 56

1

Users of PC1 experience slow connection when a webpage is requested from the server. To increase bandwidth the network engineer configured an EtherChannel on interfaces f1/0 and f0/1 of the server farm switch.
server_switch# sh etherchannel load-balance
EtherChannel load-balancing operational state (src-mac):
Non-IP: Source MAC address
IPv4: Source MAC address
IPv6: Source MAC address

However traffic is still slow. What action can the engineer take to resolve this issue?

Selecciona una de las siguientes respuestas posibles:

Disable EtherChannel load balancing.
Upgrade the switch IOS to IP services image.
Change the load-balance method to dst-mac.
Contact Cisco TAC to report a bug on the switch.

Explicación

Pregunta 5 de 56

1

A network engineer must implement Ethernet link that are capable of transporting frames and IP traffic for different broadcast domains that are mutually isolated. Consider that this is a multi-vendor environment. Which Cisco IOS switching feature can be used to achieve the task?

Selecciona una de las siguientes respuestas posibles:

PPP encapsulation with a virtual template
Link Aggregation Protocol at the access layer
dot1q VLAN trunking
inter-switch link

Explicación

Pregunta 6 de 56

1

On which interface can port security be configured?

Selecciona una de las siguientes respuestas posibles:

dynamic access point
static trunk port
destination port for SPAN
EtherChannel port group

Explicación

Pregunta 7 de 56

1

Which statement about the MAC address sticky entries in the switch when the copy run start command is entered is true?

Selecciona una de las siguientes respuestas posibles:

A sticky MAC address ages out of the MAC address table after 600 seconds
A sticky MAC address is lost when the switch reboots
A sticky MAC address is retained with the switch reboots
A sticky MAC address can be a unicast or multicast address

Explicación

Pregunta 8 de 56

1

Interface f0/1 is configured as a trunk interface that allows all VLANs. This command is configured globally.
switch(config)#monitor session 2 filter vlan 1 - 8, 39, 52

What is the result of the implemented command?

Selecciona una de las siguientes respuestas posibles:

All VLAN traffic is sent to the SPAN destination interface.
Traffic from VLAN 4 is not sent to the SPAN destination interface.
Traffic from VLANs 1 to 8, 38, and 52 is replicated to the SPAN destination port.
Filtering a trunked SPAN port effectively disables SPAN operations for all VLANs.
The trunk's native VLAN must be changed to something other than VLAN 1.

Explicación

Pregunta 9 de 56

1

Your customer has asked you to come in and verify the operation of R1 and R2 which are configured to use HSRP. They have questions about how these two devices will perform in the event of a device failure.

What is the virtual MAC address of HSRP group 1?

Selecciona una de las siguientes respuestas posibles:

000.0c07.ac02
4000.000.0010
0000.0c07.ac01
4000.000.ac01

Explicación

Pregunta 10 de 56

1

Which feature describes MAC addresses that are dynamically learned or manually configured, stored in the address table, and added to the running configuration?

Selecciona una de las siguientes respuestas posibles:

sticky
dynamic
secure
static

Explicación

Pregunta 11 de 56

1

When a private VLAN is configured which mode must be configured as a router facing port? Choose 1

Selecciona una o más de las siguientes respuestas posibles:

host
community
isolated
promiscuous

Explicación

Pregunta 12 de 56

1

A question about RSPAN configuration in VTPv2.

Selecciona una de las siguientes respuestas posibles:

vlan 510 remote span
vlan 4029 remote span
vlan 4029 span
vlan 510 span

Explicación

Pregunta 13 de 56

1

Which private VLAN access port belongs to the primary and can communicate with all interfaces, including the community and isolated host ports?

Selecciona una de las siguientes respuestas posibles:

isolated port
community port
promiscuous port
trunk port

Explicación

Pregunta 14 de 56

1

What should the configuration be for spanning-tree port-priority based on the diagram?

Selecciona una de las siguientes respuestas posibles:

sw(config)#spanning-tree port-priority 129
sw(config)#spanning-tree port-priority 127
sw(config-if)#spanning-tree port-priority 129
sw(config-if)#spanning-tree port-priority 127

Explicación

Pregunta 15 de 56

1

What happens if an interface within a channel group is configured as SPAN destination?

Selecciona una de las siguientes respuestas posibles:

It will operate as normal
The portchannel will forward traffic to the source SPAN
It will not be operational
The link will be in err-disable state

Explicación

Pregunta 16 de 56

1

Which statement about switch S1 is true?

Selecciona una de las siguientes respuestas posibles:

Physical port Fa0/13, Fa0/14, and Fa0/15 successfully formed a Layer 2 port-channel interface using an open standard protocol.
Logical port Fa0/13, Fa0/14, and Fa0/15 successfully formed a Layer 2 physical port-channel interface using a Cisco proprietary protocol.
Physical port Fa0/13, Fa0/14, and Fa0/15 successfully formed a Layer 3 port-channel interface using a Cisco proprietary protocol.
Logical port Fa0/13, Fa0/14, and Fa0/15 successfully formed a Layer 3 physical port-channel interface using an open standard protocol.

Explicación

Pregunta 17 de 56

1

Which command globally enables AAA on a device?

Selecciona una de las siguientes respuestas posibles:

aaa new-model
aaa authorization
aaa authentication
aaa accounting

Explicación

Pregunta 18 de 56

1

A network engineer is setting up a new switched network. The network is expected to grow and add many new VLANs in the future. Which spanning tree protocol should be used to reduce switch resources and managerial burdens that are associated with multiple spanning-tree instances?

Selecciona una de las siguientes respuestas posibles:

RPVST+
PVST
PVST+
RSTP
MST

Explicación

Pregunta 19 de 56

1

When troubleshooting a network problem, a network analyzer is connected to port f0/1 of a LAN switch. Which command can prevent BPDU transmission on this port?

Selecciona una de las siguientes respuestas posibles:

spanning-tree bpduguard default
spanning-tree portfast bpdufilter default
spanning-tree portfast bpduguard enable
no spanning-tree link-type shared

Explicación

Pregunta 20 de 56

1

What information is contained in a CDP advertisement?

Selecciona una de las siguientes respuestas posibles:

Native VLAN ID, memory errors, hardware platform
Port-duplex, hardware platform, memory errors
Native VLAN IDs, port-duplex, memory errors
Native VLAN IDs, port-duplex, hardware platform

Explicación

Pregunta 21 de 56

1

Which two commands ensure that DSW1 becomes the root bridge for VLAN 10 and 20? Choose Two

Selecciona una o más de las siguientes respuestas posibles:

spanning-tree mst vlan 10, 20 root primary
spanning-tree mst vlan 10, 20 priority root
spanning-tree mst 1 priority 0
spanning-tree mst 1 priority 1
spanning-tree mst 1 root primary
spanning-tree mst 1 priority 4096

Explicación

Pregunta 22 de 56

1

A network engineer must adjust STP interface attributes to influence root port selection. Which two elements are used to accomplish this?

Selecciona una o más de las siguientes respuestas posibles:

port-priority
cost
root guard
forward-timers
link type

Explicación

Pregunta 23 de 56

1

Which portion of AAA looks at what a user has access to?

Selecciona una de las siguientes respuestas posibles:

Auditing
Authentication
Authorization
Accounting

Explicación

Pregunta 24 de 56

1

Switch A, B and C are trunked together and have been properly configured for VTP. Switch C receives VLAN information from the VTP server Switch A but B does not receive any information. What is most likely the cause of this behavior?

Selecciona una de las siguientes respuestas posibles:

The VTP revision number of the Switch B is higher that that of Switch A.
The trunk between Switch A and Switch B is mis-configured.
Switch B is configured in transparent mode.
Switch B is configured with an access port to Switch A, which Switch C is configured with a trunk port to Switch B.

Explicación

Pregunta 25 de 56

1

What VTP mode is needed to configure an extended VLAN when a switch is configured to use VTP versions 1 or 2?

Selecciona una de las siguientes respuestas posibles:

Extended VLANs are only supported in version 3 and not in version 1 or 2.
Client
Transparent
Server

Explicación

Pregunta 26 de 56

1

Which gateway role is responsible for answering ARP requests for the virtual IP address in GLBP?

Selecciona una de las siguientes respuestas posibles:

active virtual gateway
designated router
active virtual forwarder
active virtual router

Explicación

Pregunta 27 de 56

1

You have been asked to install and configure a new switch in a customer network. Use the console access to the existing and new switches to configure and verify correct device configuration.

Refer to the configuration. For which configured VLAN are untagged frames sent over trunks between SW1 and SW2?

Selecciona una de las siguientes respuestas posibles:

VLAN 200
VLAN 40
VLAN 999
VLAN 1
VLAN 99

Explicación

Pregunta 28 de 56

1

A network engineer changed the port speed and duplex settings of an existing EtherChannel bundle that uses the PAgP protocol. Which statement describes what happens to all ports in the bundle?

Selecciona una de las siguientes respuestas posibles:

PAgP changes the port speed and duplex for all ports in the bundle.
PAgP drops the ports that do not match the configuration.
PAgP does not change the port speed and duplex for all ports in the bundle until the switch is rebooted.
PAgP changes the port speed but not the duplex for all ports in the bundle.

Explicación

Pregunta 29 de 56

1

A network engineer deployed a switch that operates the LAN base feature set and decides to use the SDM VLAN template. The SDM template is causing the CPU of the switch to spike during peak working hours. What is the root cause of the issue?

Selecciona una de las siguientes respuestas posibles:

The VLAN receives additional frames from neighboring switches.
The switch needs to be rebooted before the SDM template takes effect
The VLAN template disables routing in hardware
The SDM VLAN template causes the MAC address-table to overflow

Explicación

Pregunta 30 de 56

1

On which layer does IP source guard provide filtering to prevent a malicious host from impersonating the IP address of a legitimate host?

Selecciona una de las siguientes respuestas posibles:

Layer 3
Layer 7
Layer 1
Layer 2

Explicación

Pregunta 31 de 56

1

When two MST instances (MST 1 and MST 2) are created on a switch, what is the total number of spanning-tree instances running on the switch?

Selecciona una de las siguientes respuestas posibles:

1
2
3
4

Explicación

Pregunta 32 de 56

1

Based on the debug output, which three statements about HSRP are true?

Selecciona una o más de las siguientes respuestas posibles:

The IP address 172.16.11.115 is the virtual HSRP address
The router with IP address 172.16.11.111 had preempt configured
The priority of the router with the IP address 172.16.11.112 is preferred over the router with IP address 172.16.11.111
The final active router in the router with the IP address 172.16.11.111
The router with IP address 172.16.11.112 is using default HSRP priority

Explicación

Pregunta 33 de 56

1

Which action allows a network engineer to limit a default VLAN from being propagated across all trunks?

Selecciona una de las siguientes respuestas posibles:

Upgrade to VTP version 3 for advanced feature set support
Enable VTP pruning on the VTP server
Manually prune default VLAN with swithport trunk allow vlans remove
Use trunk pruning VLAN 1

Explicación

Pregunta 34 de 56

1

Which statement is true about RSTP topology changes?

Selecciona una de las siguientes respuestas posibles:

Only edge ports moving to the blocking state generate a TC BDPU
If either an edge port or a non-edge port move to a block state, then a TC BDPU is generated
Only non-edge ports moving to the forwarding state generate a TC BDPU
Any loss of connectivity generates a TC BDPU

Explicación

Pregunta 35 de 56

1

Which option is a possible cause for an err-disable interface?

Selecciona una de las siguientes respuestas posibles:

routing loop
STP loop guard
Security violation
Cable unplugged

Explicación

Pregunta 36 de 56

1

What is Cisco recommendation for RSPAN best practices?

Selecciona una de las siguientes respuestas posibles:

RSPAN should have seperate VLANs
Use different portchannels
Use range VLAN extended 1-1005
Use different vlan for multiple/different switches

Explicación

Pregunta 37 de 56

1

Which configuration command ties the router host standby priority to the availability of its interfaces?

Selecciona una de las siguientes respuestas posibles:

standby priority
standby group
standby track
backup interface

Explicación

Pregunta 38 de 56

1

What is needed for Virtual Switching System (VSS) ?

Selecciona una de las siguientes respuestas posibles:

Virtual trunk
Virtual Switching Link or VSL
portchannel
trunk

Explicación

Pregunta 39 de 56

1

Hotspot – HSRP
Ferris Plastics, Inc. is a medium sized company, with an enterprise network (access, distribution and core switches) that provides LAN connectivity from user PCs to corporate servers. The distribution switches are configured to use HSRPto provide a high availability solution.
– DSW1 -primary device for VLAN 101 VLAN 102 andVLAN 105
– DSW2 – primary device for VLAN 103 and VLAN 104
– A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device, unless GigabitEthernet1/0/1 on backup device has also failed.
Troubleshooting has identified several issues. Currently all interfaces are up. Using the running configurations and show commands, you have been asked to investigate and respond to the following question.

What is the priority value of the VLAN 105 HSRP group on DSW2? Use sh standby br on console 2

Selecciona una de las siguientes respuestas posibles:

50
100
150
200

Explicación

Pregunta 40 de 56

1

What is the default HSRP priority?

Selecciona una de las siguientes respuestas posibles:

120
50
100
1024

Explicación

Pregunta 41 de 56

1

Which statement about the use of SDM templates in a Cisco switch is true?

Selecciona una de las siguientes respuestas posibles:

SDM templates are used to configure ACLs that protect networks and specific hosts from unnecessary or unwanted traffic.
SDM templates are used to configure system resources in the switch to optimize support for specific features, depending on how the switch is used in the network.
SDM templates are used to create Layer 3 interfaces (switch virtual interfaces) to permit hosts in one VLAN to communicate with hosts in another VLAN.
SDM templates are used to configure a set of ACLs that allows the users to manage the flow of traffic handled by the route processor.
SDM templates are configured by accessing the switch using the web interface.

Explicación

Pregunta 42 de 56

1

Which feature must be enabled to eliminate the broadcasting of all unknown traffic to switches that are not participating in the specific VLAN?

Selecciona una de las siguientes respuestas posibles:

VTP pruning
port-security
storm control
bpdguard

Explicación

Pregunta 43 de 56

1

Which option lists that modes that are available for configuring UDLD on a Cisco switch?

Selecciona una de las siguientes respuestas posibles:

Normal and active
Normal and aggressive
Normal and passive
Normal and standby
Active and aggressive

Explicación

Pregunta 44 de 56

1

How will the traffic reach the core switch from AZ switch to DS core switch?

Selecciona una de las siguientes respuestas posibles:

ASW1 to DWS2 to core
ASW1 to DSW2 to DSW1 to core
ASW1 to DWS2 to DWS1 to core
ASW1 to DSW1 to DSW2 to core

Explicación

Pregunta 45 de 56

1

Which configuration ensures that the CDP packet update frequency sent from DSW1 to ALS1 is half of the default value?

Selecciona una de las siguientes respuestas posibles:

DSW1(config-if)#cdp holdtime 30
DSW1(config-if)#cdp time 30
DSW1(config-if)#cdp holdtime 60
DSW1(config-if)#cdp timer 30
DSW1(config-if)#cdp timer 90

Explicación

Pregunta 46 de 56

1

An engineer has run the show EtherChannel summary command and the output is displayed. Which statement about the status of the EtherChannel is true?

Selecciona una de las siguientes respuestas posibles:

The EtherChannel is operational and is configured for PAgP
The EtherChannel is operational and is using no EtherChannel protocol
The EtherChannel is down because of a mismatched EtherChannel protocol
The EtherChannel is down and configured for LACP

Explicación

Pregunta 47 de 56

1

Which command would a network engineer apply to err-disable a switchport when a packet-storm is detected?

Selecciona una de las siguientes respuestas posibles:

router(config-if)#storm-control action shutdown
router(config-if)#storm-control action enable
router(config-if)#storm-control action error
router(config-if)#storm-control action trap

Explicación

Pregunta 48 de 56

1

Which VRRP router is responsible for forwarding packets that are sent to the IP address of the virtual router?

Selecciona una de las siguientes respuestas posibles:

virtual router active
virtual router master
virtual router standby
virtual router backup

Explicación

Pregunta 49 de 56

1

If GiE1/0/1 on DSW2 is shutdown what will be the resulting priority value of the VLAN 105 HSRP group on router DSW2?

Selecciona una de las siguientes respuestas posibles:

90
100
150
200

Explicación

Pregunta 50 de 56

1

What does the command "vlan dot1q tag native" accomplish when configured under global configuration?

Selecciona una de las siguientes respuestas posibles:

It allows control traffic to pass using the non-default VLAN.
All frames within the native VLAN are tagged, except when the native VLAN is set to 1.
Control traffic is tagged
It removes the 4-byte dot1q tag from every frame that traverses the trunk interfaces

Explicación

Pregunta 51 de 56

1

What type of SDM templates can you use on a switch? Choose 4

Selecciona una o más de las siguientes respuestas posibles:

Switching
Routing
VLAN
Security
Access
Default

Explicación

Pregunta 52 de 56

1

Interfaces are assigned to a VLAN and then the VLAN is deleted. Which state are these interfaces in after the VLAN is deleted?

Selecciona una de las siguientes respuestas posibles:

They remain up but they are reassigned to the native VLAN
They remain up but they are reassigned to the default VLAN
They go down but they are reassigned to the default VLAN
The go down until they are reassigned to a VLAN

Explicación

Pregunta 53 de 56

1

If HSRP group number is 45 what would the MAC address be?

Selecciona una de las siguientes respuestas posibles:

0000-070C-AC2D
00-00-0C-07-AC-2D
0000-C004-ACD2
0000-0C07-AC45

Explicación

Pregunta 54 de 56

1

When a Layer 2 EtherChannel is configured which statement about placement of the IP address is true?

Selecciona una de las siguientes respuestas posibles:

The IP address is placed on the lowest numbered member port
The IP address is assigned via DHCP only
The IP address is placed on the port-channel logical interface
The IP address is placed on the highest numbered member port

Explicación

Pregunta 55 de 56

1

Which SDM templates is the most appropriate for a Layer 2 switch that provides connectivity to a large number of clients?

Selecciona una de las siguientes respuestas posibles:

Default
VLAN
Routing
Access

Explicación

Pregunta 56 de 56

1

Which SDM template disables routing and supports maximum number of unicast MAC addresses?

Selecciona una de las siguientes respuestas posibles:

VLAN
Routing
Access
Default

	Creado por Tyson Mckay hace más de 6 años

CCNP 300-115 50 questions

CCNP Switch 4

Pregunta 1 de 56

If a network engineer applies the command "mac-address-table notification mac-move" on a Cisco switch port, when is the sys log message generated?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 56

Which feature is automatically enabled when a voice VLAN is configured but not automatically disabled when a voice VLAN is removed?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 3 de 56

Which statement describes one major issue that VTP can cause in an enterprise network when a new switch is introduced in the network in VTP mode server?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 56

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 5 de 56

A network engineer must implement Ethernet link that are capable of transporting frames and IP traffic for different broadcast domains that are mutually isolated. Consider that this is a multi-vendor environment. Which Cisco IOS switching feature can be used to achieve the task?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 56

On which interface can port security be configured?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 7 de 56

Which statement about the MAC address sticky entries in the switch when the copy run start command is entered is true?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 56

Interface f0/1 is configured as a trunk interface that allows all VLANs. This command is configured globally. switch(config)#monitor session 2 filter vlan 1 - 8, 39, 52 What is the result of the implemented command?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 56

Your customer has asked you to come in and verify the operation of R1 and R2 which are configured to use HSRP. They have questions about how these two devices will perform in the event of a device failure. What is the virtual MAC address of HSRP group 1?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 56

Which feature describes MAC addresses that are dynamically learned or manually configured, stored in the address table, and added to the running configuration?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 11 de 56

When a private VLAN is configured which mode must be configured as a router facing port? Choose 1

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 56

A question about RSPAN configuration in VTPv2.

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 13 de 56

Which private VLAN access port belongs to the primary and can communicate with all interfaces, including the community and isolated host ports?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 14 de 56

What should the configuration be for spanning-tree port-priority based on the diagram?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 56

What happens if an interface within a channel group is configured as SPAN destination?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 56

Which statement about switch S1 is true?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 17 de 56

Which command globally enables AAA on a device?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 18 de 56

A network engineer is setting up a new switched network. The network is expected to grow and add many new VLANs in the future. Which spanning tree protocol should be used to reduce switch resources and managerial burdens that are associated with multiple spanning-tree instances?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 56

When troubleshooting a network problem, a network analyzer is connected to port f0/1 of a LAN switch. Which command can prevent BPDU transmission on this port?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 56

What information is contained in a CDP advertisement?

Selecciona una de las siguientes respuestas posibles:

Interface f0/1 is configured as a trunk interface that allows all VLANs. This command is configured globally.
switch(config)#monitor session 2 filter vlan 1 - 8, 39, 52

What is the result of the implemented command?

Your customer has asked you to come in and verify the operation of R1 and R2 which are configured to use HSRP. They have questions about how these two devices will perform in the event of a device failure.

What is the virtual MAC address of HSRP group 1?