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Cisco 642-813 Exam Syllabus Topics:

Cisco Implementing Cisco IP Switched Networks Sample Questions:

1. What is one method that can be used to prevent VLAN hopping?

A) Configure all frames with two 802.1Q headers.
B) Configure ACLs.
C) Enforce username and password combinations.
D) Explicitly turn off DTP on all unused ports.
E) Configure VACLs.

2. What two steps can be taken to help prevent VLAN hopping? (Choose two.)

A) Enable BPDU guard.
B) Disable Cisco Discovery Protocol on ports where it is not necessary.
C) Implement port security.
D) Place unused ports in a common unrouted VLAN.
E) Prevent automatic trunk configurations.

3. Which two items best describe a Cisco IOS IP SLA responder? (Choose two.)

A) required at the destination to implement Cisco IOS IP SLA services
B) required for VoIP jitter measurements
C) improves measurement accuracy
D) provides security on Cisco IOS IP SLA messages via LEAP or EAP-FAST authentication
E) responds to one Cisco IOS IP SLA operation per port
F) stores the resulting test statistics

4. CORRECT TEXT
Acme is small export company that has an existing enterprise network comprised of 5 switches; CORE,DSW1,
DSW2,ASW1 and ASW2. The topology diagram indicates their desired pre-VLAN spanning tree mapping.
Previous configuration attempts have resulted in the following issues:
-CORE should be the root bridge for VLAN 20; however, DSW1 is currently the root bridge for VLAN 20.
-
Traffic for VLAN 30 should be forwarding over the gig 1/0/6 trunk port between DSW1 and DSW2.
However VLAN 30 is currently using gig 1/0/5.
-
Traffic for VLAN 40 should be forwarding over the gig 1/0/5 trunk port between DSW1 and DSW2.
However VLAN 40 is currently using gig 1/0/6.
You have been tasked with isolating the cause the these issuer and implementing the appropriate solutions. You task is complicated by the fact that you only have full access to DSW1, with isolating the cause of these issues and implementing the appropriate solutions, Your task is complicated by the fact that you only have full access to DSW1, with the enable secret password cisco. Only limited show command access is provided on CORE, and DSW2 using the enable 2 level with a password of acme. No configuration changes will be possible on these routers. No access is provided to ASW1 or ASW2.

hostname DSW1 ! enable secret 5 $1$wN16$j5RnayatKfxaKxhX30TVo0 ! no aaa new-model switch 1 provision ws-c3750g-24t ip subnet-zero ! ! ! ! ! ! no file verify auto ! spanning-tree mode pvst spanning-tree extend systen-id spanning-tree "vlan 20 priority 28672 spanning-tree vlan 30 priority 24576 ! vlan internal allocation policy ascending ! ! interface GigabitEthernet1/0/1 description trunk line to ASW1 switchport trunk encapsulation dotlq switchport mode trunk switchport nonegotiate speed 100 duplex full ! interface GigabitEthernet1/0/2
shutdown ! interface GigabitEthernet1/0/3 shutdown ! interface GigabitEthernet1/0/4 shutdown ! interface GigabitEthernet1/0/5 description trunk line to DSW 2 switchport trunk encapsulation dotlq switcbport mode trunk switchport nonegotiate speed 100 duplex full ! interface GigabitEthernet1/0/6 description trunk line to DSW 2 switchport trunk encapsulation dotlq
switchport mode trunk switchport nonegotiate speed 100 duplex full ! interface GigabitEthemet1/0/7 shutdown ! interface GigabitEthemet1/0/8 shutdown ! Interface GigabitEthernetl/0/9
description trunk line to CORE switchport trunk encapsulation dotlq
switchport mode trunk ! end
DSW1# Show sp DSW1# Show spanning-tree
VLAN0001 Spanning tree enabled protocol ieee
Root ID Priority 32769 Address 0016. 4658. f300 Cost 19 Port 9 (GigabitEthernet/0/9) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1) Address 0016. 46fa. 9b00 Hello Time 2 sec Max Age 20 sec Forward Delay I5 sec Aging Time 300

VLAN0020 Spanning three enabled protocol ieee
Root ID Priority 28692 Address 0016. 46fa. 9b00 This bridge is the root
Bridge ID Priority 28692 (priority 28672 sys-id-ext 20) Address 0016. 46fa. 9b00 Hello Time 2 sec Max Age 20 sec Forward Delay I5 sec Aging Time 300

VLAN0020 Spanning three enabled protocol ieee
Root ID Priority 28692 Address 0016. 46fa. 9b00 This bridge is the root
Bridge ID Priority 28692 (priority 28672 sys-id-ext 20) Address 0016. 46fa. 9b00 Hello Time 2 sec Max Age 20 sec Forward Delay I5 sec Aging Time 300

VLAN0030 Spanning three enabled protocol ieee
Root ID Priority 24606 This bridge is the root
Bridge ID Priority 28692 (priority 28672 sys-id-ext 20) Address 0016. 46fa. 9b00 Hello Time 2 sec Max Age 20 sec Forward Delay I5 sec Aging Time 300

VLAN0040 Spanning three enabled protocol ieee
Root ID Priority 24616 Address 0016. 46fa. 6a00 Cost 19 Port 9 (GigabitEthernet/0/9) Hello Time 2 sec Max Age 20 sec Forward Delay I5 sec
Bridge ID Priority 32808 (priority 32768 sys-id-ext 40) Address 0016. 46fa. 9b00 Hello Time 2 sec Max Age 20 sec Forward Delay I5 sec Aging Time 300 DSW1#

DSW1#

5. Refer to the exhibit.

What can be concluded about VLANs 200 and 202?

A) VLAN 202 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 200 carries traffic between community ports and to promiscuous ports.
B) VLAN 202 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 200 carries traffic from isolated ports to a promiscuous port.
C) VLAN 200 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 202 carries traffic between community ports and to promiscuous ports.
D) VLAN 200 carries traffic from promiscuous ports to isolated, community, and other promiscuous ports in the same VLAN. VLAN 202 carries traffic from isolated ports to a promiscuous port.

Solutions: