Tips for ccnp 300 135

Exam Code: 300 135 dumps (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Troubleshooting and Maintaining Cisco IP Networks (TSHOOT)
Certification Provider: Cisco
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Q1. – (Topic 19) 

The implementation group has been using the test bed to do an IPv6 'proof-of-concept1. After several changes to the network addressing and routing schemes, a trouble ticket has been opened indicating that the loopback address on R1 (2026::111:1) is not able to ping the loopback address on DSW2 (2026::102:1).

Use the supported commands to isolate the cause of this fault and answer the following question.

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: B

Explanation:

Start to troubleshoot this by pinging the loopback IPv6 address of DSW2 (2026::102:1). This can be pinged from DSW1, R4, and R3, which leads us to believe that the issue is with R2. Going further, we can see that R2 only has an IPV6 OSPF neighbor of R1, not R3:

We can then see that OSPFv3 has not been enabled on the interface to R3:

So the problem is with R2, related to IPV6 Routing, and the fix is to enable the "ipv6 ospf 6 area 0" command under the serial 0/0/0.23 interface.

Q2. – (Topic 15) 

The implementations group has been using the test bed to do a ‘proof-of-concept' that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing scheme, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 address. 

Use the supported commands to isolated the cause of this fault and answer the following questions. 

The fault condition is related to which technology? 

A. NTP 

B. IP DHCP Helper 

C. IPv4 EIGRP Routing 

D. IPv6 RIP Routing 

E. IPv4 layer 3 security 

F. Switch-to-Switch Connectivity 

G. Loop Prevention 

H. Access Vlans 

I. Port Security 

J. VLAN ACL / Port ACL 

K. Switch Virtual Interface 

Answer:

Explanation: 

On DSW1, VALN ACL, Need to delete the VLAN access-map test1 whose action is to drop access-list 10; specifically 10.2.1.3 

Q3. – (Topic 5) 

Scenario: 

A customer network engineer has edited their OSPF network configuration and now your customer is experiencing network issues. They have contacted you to resolve the issues and return the network to full functionality. 

The OSPF neighbour relationship has been lost between R1 and R3. What is causing this problem? 

A. The serial interface in R1 should be taken out of the shutdown state. 

B. A neighbor statement needs to be configured in R1 and R3 pointing at each other. 

C. The R1 network type should be changed to point-to-multipoint non-broadcast. 

D. The hello, dead and wait timers on R1 need to be reconfigured to match the values on R3. 

Answer:

Explanation: 

In order for two OSPF routers to become neighbors, they must have matching network types across the links. In this case, we see that R1 has been configured as non-broadcast and R3 is using point to point non-broadcast. 

This can be seen by issuing the "show running-config" command on each router, or the "show ip ospf interface" command: 

Topic 6, Ticket 1: Switch Port Trunk 

Topology Overview (Actual Troubleshooting lab design is for below network design) 

. Client Should have IP 10.2.1.3 

. EIGRP 100 is running between switch DSW1 & DSW2 

. OSPF (Process ID 1) is running between R1, R2, R3, R4 

. Network of OSPF is redistributed in EIGRP 

. BGP 65001 is configured on R1 with Webserver cloud AS 65002 

. HSRP is running between DSW1 & DSW2 Switches 

The company has created the test bed shown in the layer 2 and layer 3 topology exhibits. 

This network consists of four routers, two layer 3 switches and two layer 2 switches. 

In the IPv4 layer 3 topology, R1, R2, R3, and R4 are running OSPF with an OSPF process number 1. 

DSW1, DSW2 and R4 are running EIGRP with an AS of 10. Redistribution is enabled where necessary. 

R1 is running a BGP AS with a number of 65001. This AS has an eBGP connection to AS 65002 in the ISP's network. Because the company's address space is in the private range. 

R1 is also providing NAT translations between the inside (10.1.0.0/16 & 10.2.0.0/16) networks and outside (209.65.0.0/24) network. 

ASW1 and ASW2 are layer 2 switches. 

NTP is enabled on all devices with 209.65.200.226 serving as the master clock source. 

The client workstations receive their IP address and default gateway via R4's DHCP server. 

The default gateway address of 10.2.1.254 is the IP address of HSRP group 10 which is running on DSW1 and DSW2. 

In the IPv6 layer 3 topology R1, R2, and R3 are running OSPFv3 with an OSPF process number 6. 

DSW1, DSW2 and R4 are running RIPng process name RIP_ZONE. 

The two IPv6 routing domains, OSPF 6 and RIPng are connected via GRE tunnel running 

over the underlying IPv4 OSPF domain. Redistrution is enabled where necessary. 

Recently the implementation group has been using the test bed to do a ‘proof-of-concept' on several implementations. This involved changing the configuration on one or more of the devices. You will be presented with a series of trouble tickets related to issues introduced during these configurations. 

Note: Although trouble tickets have many similar fault indications, each ticket has its own issue and solution. 

Each ticket has 3 sub questions that need to be answered & topology remains same. 

Question-1 Fault is found on which device, 

Question-2 Fault condition is related to, 

Question-3 What exact problem is seen & what needs to be done for solution 

Client is unable to ping IP 209.65.200.241 

Solution 

Steps need to follow as below:-

. When we check on client 1 & Client 2 desktop we are not receiving DHCP address from R4 

Ipconfig —– Client will be getting 169.X.X.X 

. On ASW1 port Fa1/0/ 1 & Fa1/0/2 access port VLAN 10 was assigned which is using IP address 10.2.1.0/24 

Sh run ——- & check for running config of int fa1/0/1 & fa1/0/2 

==================================================== 

interface FastEthernet1/0/1switchport mode accessswitchport access vlan 10interface 

FastEthernet1/0/2switchport mode accessswitchport access vlan 10 

==================================================== 

. We need to check on ASW 1 trunk port the trunk Po13 & Po23 were receiving VLAN 20 & 200 but not VLAN 10 so that switch could not get DHCP IP address and was failing to reach IP address of Internet 

. Change required: On ASW1 below change is required for switch-to-switch Connectivity.. 

int range portchannel13,portchannel23 switchport trunk allowed vlan none switchport trunk allowed vlan 10,200 

Q4. – (Topic 16) 

The implementations group has been using the test bed to do a ‘proof-of-concept'. After several changes to the network addressing, routing schemes, a trouble ticket has been opened indicating that the loopback address on R1 (2026::111:1) is not able to ping the loopback address on DSW2(2026::102:1). 

Use the supported commands to isolated the cause of this fault and answer the following questions. 

What is the solution to fault condition? 

A. Under the interface Serial 0/0/0.23 configuration enter the ipv6 ospf 6 area 0 command. 

B. Under the interface Serial0/0/0.12 configuration enter the ipv6 ospf 6 area 12 command. 

C. Under ipv6 router ospf 6 configuration enter the network 2026::1:/122 area 0 command. 

D. Under ipv6 router ospf 6 configuration enter no passive-interface default command. 

Answer:

Explanation: 

On R2, IPV6 OSPF routing, configuration is required to add ipv6 ospf 6 area 0 under interface serial 0/0/0.23 

Q5. – (Topic 1)

When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful. What is the next thing that should be checked?

A. Verify that the EIGRP hello and hold timers match exactly.

B. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP peer command.

C. Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP traffic command.

D. Verify that EIGRP is enabled for the appropriate networks on the local and neighboring router.

Answer: D

Q6. – (Topic 9) 

The implementations group has been using the test bed to do a ‘proof-of-concept' that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing schemes, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 address. 

Use the supported commands to isolated the cause of this fault and answer the following questions. 

On which device is the fault condition located? 

A. R1 

B. R2 

C. R3 

D. R4 

E. DSW1 

F. DSW2 

G. ASW1 

Answer:

Explanation: 

The BGP neighbor statement is wrong on R1. 

Q7. – (Topic 18) 

The implementations group has been using the test bed to do a ‘proof-of-concept' that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing schemes, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 

address. 

Use the supported commands to isolate the cause of this fault and answer the following question. 

What is the solution to the fault condition? 

A. Under the global configuration, delete the no ip dhcp use vrf connected command. 

B. Under the IP DHCP pool configuration, delete the default -router 10.2.1.254 command and enter the default-router 10.1.4.5 command. 

C. Under the IP DHCP pool configuration, delete the network 10.2.1.0 255.255.255.0 command and enter the network 10.1.4.0 255.255.255.0 command. 

D. Under the IP DHCP pool configuration, issue the no ip dhcp excluded-address 10.2.1.1 

10.2.1.253 command and enter the ip dhcp excluded-address 10.2.1.1 10.2.1.2 command. 

Answer:

Explanation: 

On R4 the DHCP IP address is not allowed for network 10.2.1.0/24 which clearly shows the problem lies on R4 & the problem is with DHCP 

Q8. – (Topic 14) 

The implementations group has been using the test bed to do a ‘proof-of-concept' that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing scheme, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 address. 

Use the supported commands to isolated the cause of this fault and answer the following questions. 

The fault condition is related to which technology? 

A. NTP 

B. IP DHCP Server 

C. IPv4 OSPF Routing 

D. IPv4 EIGRP Routing 

E. IPv4 Route Redistribution 

F. IPv6 RIP Routing 

G. IPv6 OSPF Routing 

H. IPv4 and IPv6 Interoperability 

I. IPv4 layer 3 security 

Answer:

Explanation: 

On R4, IPV4 EIGRP Routing, need to change the EIGRP AS number from 1 to 10 since DSW1 & DSW2 is configured to be in EIGRP AS number 10. 

Topic 15, Ticket 10 : VLAN Access Map 

Topology Overview (Actual Troubleshooting lab design is for below network design) 

. Client Should have IP 10.2.1.3 

. EIGRP 100 is running between switch DSW1 & DSW2 

. OSPF (Process ID 1) is running between R1, R2, R3, R4 

. Network of OSPF is redistributed in EIGRP 

. BGP 65001 is configured on R1 with Webserver cloud AS 65002 

. HSRP is running between DSW1 & DSW2 Switches 

The company has created the test bed shown in the layer 2 and layer 3 topology exhibits. 

This network consists of four routers, two layer 3 switches and two layer 2 switches. 

In the IPv4 layer 3 topology, R1, R2, R3, and R4 are running OSPF with an OSPF process number 1. 

DSW1, DSW2 and R4 are running EIGRP with an AS of 10. Redistribution is enabled where necessary. 

R1 is running a BGP AS with a number of 65001. This AS has an eBGP connection to AS 65002 in the ISP's network. Because the company's address space is in the private range. 

R1 is also providing NAT translations between the inside (10.1.0.0/16 & 10.2.0.0/16) networks and outside (209.65.0.0/24) network. 

ASW1 and ASW2 are layer 2 switches. 

NTP is enabled on all devices with 209.65.200.226 serving as the master clock source. 

The client workstations receive their IP address and default gateway via R4's DHCP server. 

The default gateway address of 10.2.1.254 is the IP address of HSRP group 10 which is running on DSW1 and DSW2. 

In the IPv6 layer 3 topology R1, R2, and R3 are running OSPFv3 with an OSPF process number 6. 

DSW1, DSW2 and R4 are running RIPng process name RIP_ZONE. 

The two IPv6 routing domains, OSPF 6 and RIPng are connected via GRE tunnel running over the underlying IPv4 OSPF domain. Redistrution is enabled where necessary. 

Recently the implementation group has been using the test bed to do a ‘proof-of-concept' on several implementations. This involved changing the configuration on one or more of the devices. You will be presented with a series of trouble tickets related to issues introduced during these configurations. 

Note: Although trouble tickets have many similar fault indications, each ticket has its own issue and solution. 

Each ticket has 3 sub questions that need to be answered & topology remains same. 

Question-1 Fault is found on which device, 

Question-2 Fault condition is related to, 

Question-3 What exact problem is seen & what needs to be done for solution 

Client 1 is unable to ping IP 209.65.200.241 

Solution 

Steps need to follow as below:-

. When we check on client 1 & Client 2 desktop we are not receiving DHCP address from R4 

ipconfig —– Client will be receiving IP address 10.2.1.3 

. From Client PC we can ping 10.2.1.254…. 

. But IP 10.2.1.3 is not able to ping from R4, R3, R2, R1 

. Change required: On DSW1, VALN ACL, Need to delete the VLAN access-map test1 whose action is to drop access-list 10; specifically 10.2.1.3 

Q9. – (Topic 14) 

The implementations group has been using the test bed to do a ‘proof-of-concept' that requires both Client 1 and Client 2 to access the WEB Server at 209.65.200.241. After several changes to the network addressing, routing scheme, DHCP services, NTP services, layer 2 connectivity, FHRP services, and device security, a trouble ticket has been opened indicating that Client 1 cannot ping the 209.65.200.241 address. 

Use the supported commands to isolated the cause of this fault and answer the following questions. 

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:

Explanation: 

The EIGRP AS number configured on R4 is wrong. 

Q10. – (Topic 5) 

Scenario: 

A customer network engineer has edited their OSPF network configuration and now your customer is experiencing network issues. They have contacted you to resolve the issues and return the network to full functionality. 

After resolving the issues between R3 and R4. Area 2 is still experiencing routing issues. Based on the current router configurations, what needs to be resolved for routes to the networks behind R5 to be seen in the company intranet? 

A. Configure R4 and R5 to use MD5 authentication on the Ethernet interfaces that connect to the common subnet. 

B. Configure Area 1 in both R4 and R5 to use MD5 authentication. 

C. Add ip ospf authentication-key 7 BEST to the R4 Ethernet interface that connects to R5 and ip ospf authentication-key 7 BEST to R5 Ethernet interface that connects to R4. 

D. Add ip ospf authentication-key CISCO to R4 Ethernet 0/1 and add area 2 authentication to the R4 OSPF routing process. 

Answer:

Explanation: 

Here, we see from the running configuration of R5 that OSPF authentication has been configured on the link to R4: 

However, this has not been done on the link to R5 on R4: 

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