20 01 2012
CCNP 642-832 EXAM 5
QUESTION 41
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 and Client 2 are getting a 169.x.x.x IP address and are not able to ping DSW1 or the FTP Server.
They are able to ping each other.
Configuration on ASW1
Interface PortChannel13
switchport mode trunk
switchport trunk allowed vlan 1-9
!
Interface PortChannel23
switchport mode trunk
switchport trunk allowed vlan 1-9
!
Interface FastEthernet1/0/1
switchport mode access
switchport access vlan 10
!
Interface FastEthernet1/0/2
switchport mode access
switchport access vlan 10
!
On Which device is the fault condition located?
A. ASW1
B. DSW1
C. Client 1D. FTP Server
Answer: A
Explanation/Reference:
Explanation:
Since the Clients are getting ip 169.x.x.x, we know that DHCP is not working. However, upon closer
examination of the ASW1 configuration we can see that the problem is not with DHCP, but the fact that the
trunks on the port channels are only allowing VLANs 1-9, when the clients belong to VLAN 10. VLAN 10 is
not traversing the trunk on ASW1, so the problem is with the trunk configuration on ASW1.
QUESTION 42
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 and Client 2 are getting a 169.x.x.x IP address and are not able to ping DSW1 or the FTP Server.
They are able to ping each other.
Configuration on ASW1
Interface PortChannel13
switchport mode trunk
switchport trunk allowed vlan 1-9
!
Interface PortChannel23
switchport mode trunk
switchport trunk allowed vlan 1-9
!
Interface FastEthernet1/0/1
switchport mode access
switchport access vlan 10
!
Interface FastEthernet1/0/2
switchport mode access
switchport access vlan 10
!
The Fault Condition is related to which technology?
A. VLAN
B. InterVLAN communication
C. DHCP
D. Switch to Switch Connectivity
Answer: D
Explanation/Reference:
Explanation:
Since the Clients are getting ip 169.x.x.x, we know that DHCP is not working. However, upon closer
examination of the ASW1 configuration we can see that the problem is not with DHCP, but the fact that the
trunks on the port channels are only allowing VLANs 1-9, when the clients belong to VLAN 10. VLAN 10 is
not traversing the trunk on ASW1, so the problem is with switch to switch connectivity, specifically the trunkconfiguration on ASW1.
QUESTION 43
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 and Client 2 are getting a 169.x.x.x IP address and are not able to ping DSW1 or the FTP Server.
They are able to ping each other.
Configuration on ASW1
Interface PortChannel13
switchport mode trunk
switchport trunk allowed vlan 1-9
!
Interface PortChannel23
switchport mode trunk
switchport trunk allowed vlan 1-9
!
Interface FastEthernet1/0/1
switchport mode access
switchport access vlan 10
!
Interface FastEthernet1/0/2
switchport mode access
switchport access vlan 10
!
What is the solution of the fault condition?
A. Change the VLAN assignment on fa1/0/1 and fa1/0/2 on ASW1 to VLAN 1
B. Change the IP Address of VLAN 10 on DSW1
C. In Configuration mode, using the interface port-channel 13, port-channel 23, the configure switchport
trunk none allowed vlan none followed by switport trunk allowed vlan 10,200 commands.
D. Issue switchport trunk allowed vlan none on interface portchannel13 and portchanngel23 on ASW1
Answer: C
Explanation/Reference:
Explanation:
We need to allow VLANs 10 and 200 on the trunks to restore full connectivity. This can be accomplished by
issuing the "switchport trunk allowed vlan 10,200" command on the port channels used as trunks in DSW1.
QUESTION 44
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicatingthat client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 is not able to reach the WebServer. Initial troubleshooting shows that DSW1 can ping the Fa0/1
interface of R4 but not the s0/0/0/0.34 interface.
Configuration on DSW1
router eigrp 10
network 10.1.4.4 0.0.0.0
network 10.2.1.1 0.0.0.0
network 10.2.4.13 0.0.0.0
no auto-summary
Configuration on DSW2
router eigrp 10
network 10.1.4.8 0.0.0.0
network 10.2.2.1 0.0.0.0
network 10.2.4.14 0.0.0.0
no auto-summary
Configuration on R4
router eigrp 1
network 10.1.4.5 0.0.0.0
no auto-summary
redistribute ospf 1
On which device is the fault condition located?
A. DSW1
B. DSW2
C. Client 1
D. R4
Answer: D
Explanation/Reference:
Explanation:
DSW is able to only ping the locally connected interface on R4 but nothing beyond it. If we were to view the
routing table of DSW1 we would not see any routes for any of the networks beyond R4. The problem is with
the R4 configuration
QUESTION 45
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 is not able to reach the WebServer. Initial troubleshooting shows that DSW1 can ping the Fa0/1
interface of R4 but not the s0/0/0/0.34 interface.Configuration on DSW1
router eigrp 10
network 10.1.4.4 0.0.0.0
network 10.2.1.1 0.0.0.0
network 10.2.4.13 0.0.0.0
no auto-summary
Configuration on DSW2
router eigrp 10
network 10.1.4.8 0.0.0.0
network 10.2.2.1 0.0.0.0
network 10.2.4.14 0.0.0.0
no auto-summary
Configuration on R4
router eigrp 1
network 10.1.4.5 0.0.0.0
no auto-summary
redistribute ospf 1
The Fault Condition is related to which technology?
A. IPv4 EIGRP Routing
B. InterVLAN communication
C. OSPF
D. Switch to Switch Connectivity
Answer: A
Explanation/Reference:
Explanation:
According to the network topology table, router R4 should be configured for EIFRP 10, not EIGRP 1. DSW
is able to only ping the locally connected interface on R4 but nothing beyond it. If we were to view the
routing table of DSW1 we would not see any routes for any of the networks beyond R4. The problem is with
the EIGRP configuration of router R4.
QUESTION 46
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 is not able to reach the WebServer. Initial troubleshooting shows that DSW1 can ping the Fa0/1
interface of R4 but not the s0/0/0/0.34 interface.
Configuration on DSW1
router eigrp 10
network 10.1.4.4 0.0.0.0
network 10.2.1.1 0.0.0.0
network 10.2.4.13 0.0.0.0no auto-summary
Configuration on DSW2
router eigrp 10
network 10.1.4.8 0.0.0.0
network 10.2.2.1 0.0.0.0
network 10.2.4.14 0.0.0.0
no auto-summary
Configuration on R4
router eigrp 1
network 10.1.4.5 0.0.0.0
no auto-summary
redistribute ospf 1
What is the solution of the fault condition?
A. Change the EIGRP AS to 1 on DSW1
B. Change the routing protocol on DSW1 and DSW2 to OSPF
C. Change the AS number on the EIGRP routing process from 1 to 10 to much the AS number used on
DSW1 and DSW2
D. Advertise 10.1.1.8/30 network in EIGRP on R4
Answer: C
Explanation/Reference:
Explanation:
According to the network topology table, router R4 should be configured for EIFRP 10, not EIGRP 1. DSW
is able to only ping the locally connected interface on R4 but nothing beyond it. If we were to view the
routing table of DSW1 we would not see any routes for any of the networks beyond R4. By changing the
EIGRP AS number from 1 to 10, connectivity should be restored.
QUESTION 47
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 is not able to reach the WebServer. Initial troubleshooting shows that DSW1 can ping the Fa0/1
interface of R4 but not the s0/0/0/0.34 interface.
Configuration on DSW1
router eigrp 10
network 10.1.4.4 0.0.0.0
CertKiller.com
network 10.2.1.1 0.0.0.0
network 10.2.4.13 0.0.0.0
no auto-summary
Configuration on DSW2router eigrp 10
network 10.1.4.8 0.0.0.0
network 10.2.2.1 0.0.0.0
network 10.2.4.14 0.0.0.0
no auto-summary
Configuration on R4
router eigrp 10
network 10.1.4.5 0.0.0.0
no auto-summary
redistribute ospf 1 metric 100 10 255 1 1500 route-map EIGRP_to_OSPF
router ospf 1
network 10.1.1.8 0.0.0.0 area 34
redistribute eigrp 10 subnets
!
route-map EIGRP->OSPF
match ip address 1
!
access-list 1 permit 10.0.0.0 0.255.255.255
access-list 1 permit 209.0.0.0 0.255.255.255
On Which device is the fault condition located?
A. DSW1
B. DSW2
C. Client 1
D. R4
Answer: D
Explanation/Reference:
Explanation:
Since Client 1 is able to ping the near-end interface of the router R4 but not the far-end interface, we can
be reasonably certain that the fault condition is with R4.
QUESTION 48
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 is not able to reach the WebServer. Initial troubleshooting shows that DSW1 can ping the Fa0/1
interface of R4 but not the s0/0/0/0.34 interface.
Configuration on DSW1
router eigrp 10
network 10.1.4.4 0.0.0.0
network 10.2.1.1 0.0.0.0
network 10.2.4.13 0.0.0.0
no auto-summaryConfiguration on DSW2
router eigrp 10
network 10.1.4.8 0.0.0.0
network 10.2.2.1 0.0.0.0
network 10.2.4.14 0.0.0.0
no auto-summary
Configuration on R4
router eigrp 10
network 10.1.4.5 0.0.0.0
no auto-summary
redistribute ospf 1 metric 100 10 255 1 1500 route-map EIGRP_to_OSPF
router ospf 1
network 10.1.1.8 0.0.0.0 area 34
redistribute eigrp 10 subnets
!
route-map EIGRP->OSPF
match ip address 1
!
access-list 1 permit 10.0.0.0 0.255.255.255
access-list 1 permit 209.0.0.0 0.255.255.255
The Fault Condition is related to which technology?
A. EIGRP
B. IPv4 Router Redistribution
C. OSPF
D. IP Addressing
Answer: B
Explanation/Reference:
Explanation:
Client 1 is able to ping the Fa0/1 interface, which means that connectivity throughout the EIGRP 10
network is working. However, pings fail when using the s0/0/0/0.34 interface. This is the interface where
OSPF is configured. This should be our first clue that the problem is with EIGRP to OSPF route
redistribution. Upon closer examination of the redistribution configuration, we can see that the route-map
name does not match that of the route-map referred to in the redistribution statement. These names need
to match exactly.
QUESTION 49
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show run
Client 1 is not able to reach the WebServer. Initial troubleshooting shows that DSW1 can ping the Fa0/1
interface of R4 but not the s0/0/0/0.34 interface.
Configuration on DSW1
router eigrp 10
network 10.1.4.4 0.0.0.0network 10.2.1.1 0.0.0.0
network 10.2.4.13 0.0.0.0
no auto-summary
Configuration on DSW2
router eigrp 10
network 10.1.4.8 0.0.0.0
network 10.2.2.1 0.0.0.0
network 10.2.4.14 0.0.0.0
no auto-summary
Configuration on R4
router eigrp 10
network 10.1.4.5 0.0.0.0
no auto-summary
redistribute ospf 1 metric 100 10 255 1 1500 route-map EIGRP_to_OSPF
router ospf 1
CertKiller.com
network 10.1.1.8 0.0.0.0 area 34
redistribute eigrp 10 subnets
!
route-map EIGRP->OSPF
match ip address 1
!
access-list 1 permit 10.0.0.0 0.255.255.255
access-list 1 permit 209.0.0.0 0.255.255.255
What is the solution of the fault condition?
A. Remove the redistribute command from OSPF process on R4
B. Under the EIGRP process, delete the distribute ospf 1 router-map OSPF_to_EIGRPcommand enter the
redistribute ospf 1 route-map OSPF->EIGRP command.
C. Change EIGRP AS to 1 on R4
D. Advertise 10.1.1.8/30 network in EIGRP on R4
Answer: B
Explanation/Reference:
Explanation:
A route-map can be used when trying to specify the exact networks to be redistributed from one routing
protocol to the other. The route-map name you used under the routing process configuration to specify
which route map to use in the global part of the configuration must match. In this case, the "redistribute
ospf 1 metric 100 10 255 1 1500 route-map EIGRP_to_OSPF" tells the router to use the route map
"EIGRP_to_OSPF", which does not exist. The redistribute command should be changed to "redistribute
ospf 1 metric 100 10 255 1 1500 route-map EIGRP->OSPF" on R4.
QUESTION 50
Following ticket consists of a problem description and existing configuration on the device.
TROUBLE TICKET STATEMENT:
The implementation group has been using the test bed to do a ‘proof-of-concept’ that required both client 1
and client 2 to access the Web Server at 209.65.200.241. After several changed to interface status,
network addressing, routing schemes and layer 2 connectivity, at trouble ticket has been opened indicating
that client 1 cannot ping the 209.65.200.241 (internet Server).
show runClient 1 and Client 2 are getting a 169.x.x.x IP address and are not able to ping DSW1 or the FTP Server.
They are able to ping each other.
Configuration on R4
!
no ip domain lookup
ip dhcp excluded-address 10.2.1.1 10.2.1.253
ip dhcp excluded-address 10.2.1.254
!
ip dhcp pool TSHOOT
network 10.2.1.0 255.255.255.0
default-router 10.2.1.254
!
On Which device is the fault condition located?
A. R1
B. R2
C. R3
D. R4
E. DSW1
F. DSW2
G. ASW1
H. ASW2
Answer: D
Explanation/Reference:
Explanation:
Since Client1 is getting ip address 169.x.x.x, there may be problem in DHCP. On closer look into the DHCP
configuration on DHCP Server i.e R4 you get ip dhcp excluded-address command has wrongly configured.
So the fault condition is located on R4.
CCNP 642-832 EXAM 4 CCNP 642-832 EXAM 6