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Cisco 642-832 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Maintain and Monitor Network Performance | 20% | - Use Cisco IOS troubleshooting tools - Plan and perform scheduled network maintenance - Utilize troubleshooting methodologies |
| Troubleshoot Layer 2 Technologies | 30% | - Troubleshoot EtherChannel - Troubleshoot switch security features - Troubleshoot Spanning Tree Protocol - Troubleshoot VLANs and trunking |
| Troubleshoot IP Services and IPv6 | 15% | - Troubleshoot network services - Troubleshoot IPv6 routing and coexistence - Troubleshoot DHCP and NAT |
| Troubleshoot Layer 3 Technologies | 35% | - Troubleshoot BGP - Troubleshoot EIGRP - Troubleshoot OSPF - Troubleshoot First Hop Redundancy Protocols - Troubleshoot route redistribution |
Cisco Troubleshooting and Maintaining Cisco IP Switched Networks (TSHOOT) Sample Questions:
Topic 4, Ticket 2 : ACCESS VLAN
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
Correct Answer:
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
Here we are not able to see access Vlan10 configured for Port Fa1/0/1 & Fa1/0/2
Change required: On ASW1, for configuring Access Vlan under interface fa1/0/1 & 1/0/2 we have to enable command switchport access vlan 10
So in ticket Answer to the fault condition will be as:
You have 2 NTP servers in your network - 10.1.1.1 and 10.1.1.2. You want to configure a Cisco router to use 10.1.1.2 as its NTP server before falling back to 10.1.1.1. Which commands will you use to configure the router?
- A. ntp server 10.1.1.1 ntp server 10.1.1.2 primary
- B. ntp server 10.1.1.1 fallback ntp server 10.1.1.2
- C. ntp server 10.1.1.1 ntp server 10.1.1.2
- D. ntp server 10.1.1.1 ntp server 10.1.1.2 prefer
Correct Answer: D 🗳️
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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.
What is the solution to the fault condition?
Client is unable to ping IP 209.65.200.241
- A. In Configuration mode, using the interface range Fa 1/0/1 2, then no switchport port-security interface configuration commands. Then in exec mode clear errdisable interface fa 1/01 2 vlan 10 command
- B. In Configuration mode, using the interface range Fa 1/0/1 2, then no switchport port-security interface configuration commands. Then in exec mode clear errdisable interface fa 1/0/1, then clear errdisable interface fa 1/0/2 commands.
- C. In Configuration mode, using the interface range Fa 1/0/1 2, then no switchport port-security, followed by shutdown, no shutdown interface configuration commands.
- D. In Configuration mode, using the interface range Fa 1/0/1 2, then no switchport port-security interface configuration commands.
Correct Answer: C 🗳️
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.
What is the solution to the fault condition?
- A. Under the interface Serial0/0/0 configuration enter the ip nat outside command.
- B. Under the ip access-list standard nat_trafic configuration enter the permit 209.65.200.0 0.0.0.255 command.
- C. Under the interface Serial0/0/0 configuration enter the ip nat inside command.
- D. Under the ip access-list standard nat_trafic configuration enter the permit 10.2.0.0 0.0.255.255 command.
Correct Answer: D 🗳️
FCAPS is a network maintenance model defined by ISO. It stands for which of the following ?
- A. Security Management
- B. Fault Management
- C. Configuration Management
- D. Protocol Management
- E. Action Management
Correct Answer: A,B,C 🗳️
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