Latest Cisco 642-813 Actual Free Exam Questions & Community Discussion, Page 3

Question #27

Which trunking protocol inserts a four byte tag into the Ethernet frame and recalculates the CRC value?

A. VTP

B. 802.1Q

C. ISL

D. DTP

Discussion 0

Correct Answer: B Vote an answer

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Question #28

Refer to the exhibit.

BPDUGuard is enabled on both ports of SwitchA. Initially, LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA. Which two statements about the possible result of attaching the second link are true? (Choose two.)

A. One or both of the two switch ports attached to the hub goes into the err-disabled state when a BPDU is received.

B. The switch port attached to LinkB does not transition to up.

C. A heavy traffic load could cause BPDU transmissions to be blocked and leave a switching loop.

D. The switch port attached to LinkA immediately transitions to the blocking state.

E. Both switch ports attached to the hub transitions to the blocking state.

Discussion 0

Correct Answer: A,C Vote an answer

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Question #29

CORRECT TEXT
Scenario:
You work for SWITCH.com. They have just added a new switch (SwitchB) to the existing network as shown in the topology diagram.
RouterA is currently configured correctly and is providing the routing function for devices on SwitchA and SwitchB. SwitchA is currently configured correctly, but will need to be modified to support the addition of SwitchB. SwitchB has a minimal configuration. You have been tasked with competing the needed configuring of SwitchA and SwitchB. SwitchA and SwitchB use Cisco as the enable password.
Configuration Requirements for SwitchA
The VTP and STP configuration modes on SwitchA should not be modified.
SwitchA needs to be the root switch for vlans 11, 12, 13, 21, 22 and 23. All other vlans should be left are their default values.
Vlan 21
Configuration Requirements for SwitchB
o Name: Marketing
o will support two servers attached to fa0/9 and fa0/10
Vlan 22
o Name: Sales
o will support two servers attached to fa0/13 and fa0/14
Vlan 23
o Name: Engineering
o will support two servers attached to fa0/15 and fa0/16
Access ports that connect to server should transition immediately to forwarding state upon detecting the connection of a device.
SwitchB VTP mode needs to be the same as SwitchA.
SwitchB must operate in the same spanning tree mode as SwitchA
No routing is to be configured on SwitchB
Only the SVI vlan 1 is to be configured and it is to use address 192.168.1.11/24
Inter-switch Connectivity Configuration Requirements
For operational and security reasons trunking should be unconditional and Vlans 1, 21, 22 and 23 should tagged when traversing the trunk link.
The two trunks between SwitchA and SwitchB need to be configured in a mode that allows for the maximum use of their bandwidth for all vlans. This mode should be done with a nonproprietary protocol, with SwitchA controlling activation.
Propagation of unnecessary broadcasts should be limited using manual pruning on this trunk link.

Discussion 0

Correct Answer:

Here are steps:
hostname SWITCH_B
!
!
vlan 21
name Marketing
vlan 22
name Sales
vlan 23
name Engineering
!
!
interface FastEthernet0/3
switchport trunk allowed vlan 1,21-23
channel-protocol lacp
channel-group 1 mode passive
switchport mode trunk
!
interface FastEthernet0/4
switchport trunk allowed vlan 1,21-23
channel-protocol lacp
channel-group 1 mode passive
switchport mode trunk
!
interface FastEthernet0/9
switchport access vlan 21
switchport mode access
spanning-tree portfast
!
interface FastEthernet0/10
switchport access vlan 21
switchport mode access
spanning-tree portfast
!
interface FastEthernet0/13
switchport access vlan 22
switchport mode access
spanning-tree portfast
!
!
interface FastEthernet0/14
switchport access vlan 22
switchport mode access
spanning-tree portfast
!
interface FastEthernet0/15
switchport access vlan 23
switchport mode access
spanning-tree portfast
!
interface FastEthernet0/16
switchport access vlan 23
switchport mode access
spanning-tree portfast
!
!
interface GigabitEthernet1/1
!
interface GigabitEthernet1/2
!
interface Port-channel 1
switchport mode trunk
switchport trunk encapsulation dot1q
spanning-tree allowed vlans 1,21-23
!
interface Vlan1
ip address 192.168.1.11 255.255.255.0
!
end
SWITCH_B(config)#
hostname SWITCH_A
!
panning-tree vlan 11 root primary
spanning-tree vlan 12 root primary
spanning-tree vlan 13 root primary
spanning-tree vlan 21 root primary
spanning-tree vlan 22 root primary
spanning-tree vlan 23 root primary
!
interface FastEthernet0/3
switchport trunk allowed vlan 1,21-23
channel-protocol lacp
channel-group 1 mode active
switchport mode trunk
!
interface FastEthernet0/4
switchport trunk allowed vlan 1,21-23
channel-protocol lacp
channel-group 1 mode active
switchport mode trunk
!
interface FastEthernet0/21
switchport access vlan 21
switchport mode access
!
interface FastEthernet0/22
switchport access vlan 22
switchport mode access
!
interface FastEthernet0/23
switchport access vlan 23
switchport mode access
!
interface GigabitEthernet1/1
!
interface GigabitEthernet1/2
!
interface Port-channel 1
!
interface Vlan1
no ip address
shutdown
!
ip default-gateway 192.168.1.1
!
!
End

Question #30

Which two components should be part of a security implementation plan? (Choose two.)

A. placing all unused access ports in VLAN 1 to proactively manage port security

B. enabling SNMP access to Cisco Discovery Protocol data for logging and forensic analysis

C. a Layer 2 spanning-tree design topology

D. rollback guidelines

E. detailed list of personnel assigned to each task within the plan

Discussion 0

Correct Answer: C,D Vote an answer

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Question #31

Refer to the exhibit.

What can be determined about the HSRP relationship from the displayed debug output?

A. The nonpreempt feature is enabled on the 172.16.11.112 router.

B. The IP address 172.16.11.112 is the virtual HSRP router IP address.

C. The IP address 172.16.11.111 is the virtual HSRP router IP address.

D. Router 172.16.11.111 will be the active router because its HSRP priority is preferred over router
172.16.11.112.

E. Router 172.16.11.112 will be the active router because its HSRP priority is preferred over router
172.16.11.111.

F. The preempt feature is not enabled on the 172.16.11.111 router.

Discussion 0

Correct Answer: F Vote an answer

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Question #32

Which statement describes Virtual Router Redundancy Protocol (VRRP)?

A. A VRRP group has one master and at least one standby virtual router.

B. A VRRP group has one active and one or more standby virtual routers.

C. A VRRP group has one active and one backup virtual router.

D. A VRRP group has one master and one or more backup virtual routers.

Discussion 0

Correct Answer: D Vote an answer

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Question #33

Static VLANs are being used on the Cisco network. What is true about static VLANs?

A. Devices are assigned to VLANs based on their MAC addresses.

B. Devices use DHCP to request their VLAN.

C. Devices are in the same VLAN regardless of which port they attach to.

D. Attached devices are unaware of any VLANs.

Discussion 0

Correct Answer: D Vote an answer

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Question #34

HOTSPOT

Discussion 0

Correct Answer:

Explanation:
On DSW1, increase the decrement value in the track command to a value greater than 6.
For VLAN 104, the priority is 200 on DSW2 and 150 on DSW1. The decrement value is set to 1 on
DSW1 and 55 on VLAN 104. We need to increase the decrement value on DSW1.

Question #35

Which two items are most important for managing the long-term success of high availability? (Choose two.)

A. company and user expectations

B. Stateful Switchover

C. Nonstop Forwarding

D. change control processes

E. dual devices and dual links

F. completing aggressive implementation schedule

Discussion 0

Correct Answer: A,D Vote an answer

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Question #36

A port in a redundant topology is currently in the blocking state and is not receiving BPDUs. To ensure that this port does not erroneously transition to the forwarding state, which command should be configured?

A. Switch(config-if)#spanning-tree bpduguard

B. Switch(config)#spanning-tree loopguard default

C. Switch(config-if)#spanning-tree bdpufilter

D. Switch(config)#udld aggressive

Discussion 0

Correct Answer: B Vote an answer

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Question #37

Which two statements correctly describe VTP? (Choose two.)

A. Server mode can synchronize across VTP domains.

B. Client mode cannot forward received VTP advertisements.

C. Client mode synchronizes its VLAN database from VTP advertisements.

D. Transparent mode cannot modify a VLAN database.

E. Transparent mode always has a configuration revision number of 0.

Discussion 0

Correct Answer: C,E Vote an answer

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Question #38

You are implementing basic switch security best practices. Which of these is a tactic that you can use to mitigate compromises from being launched through the switch?

A. Place all unused ports in native VLAN 1 until needed.

B. Make all ports private VLAN ports.

C. Proactively configure unused switch ports as access ports.

D. Disable Cisco Discovery Protocol globally.

Discussion 0

Correct Answer: C Vote an answer

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Question #39

Which statement is true about RSTP topology changes?

A. Only non-edge ports moving to the forwarding state generate a TC BPDU.

B. Only edge ports moving to the blocking state generate a TC BPDU.

C. If either an edge port or a non-edge port moves to a block state, then a TC BPDU is generated.

D. Any change in the state of the port generates a TC BPDU.

E. Any loss of connectivity generates a TC BPDU.

Discussion 0

Correct Answer: A Vote an answer

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