Cisco Troubleshooting and Maintaining Cisco IP Switched Networks (TSHOOT) (642-832日本語版) - 642-832日本語 Exam Practice Test

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
This clearly shows problem at R4 Kindly check routes in EIGRP there are no routes of eigrp.
Check the neighborship of EIGRP on R4; there are no neighbor seen from DSW1 & DSW2 check the running config of EIGRP protocol it shows EIGRP AS 1 process.... Now check on DSW1 & DSW2
On DSW1 only one Eigrp neighbour is there with DSW2 but its not with R4...
From above snapshot & since R4 has EIGRP AS number 1 due to which neighbour is not happening.
Change required: On R4, IPV4 EIGRP Routing, need to change the EIGRP AS number from 1 to 10 since DSW1 & DSW2 is having EIGRP AS number 10

So in ticket Answer to the fault condition will be as below for

Explanation:
FCAPS -> Fault, Configuration, Accounting, Performance and Security (ISO)
ITIL -> A collection of best practice recommendations
Cisco Lifecycle -> Often referred to as the PPDIOO model
TMN -> Telecommunications Management Network
Well Known Network Maintenance Models
Maintenance models
Model
Explanation
FCAPS
Fault-, Configuration-, Accounting-, Performance- and Security management defined by ISO
ITIL
IT Infrastructure Library
Defines a collection of best-practice recommendations that work together to meet business goals.
TMN
Telecommunications Management Network
ITU-T variation of FCAPS - See above - specially targeted towards Tele Communication Networks
PPDIOO
Also called Cisco Lifecycle Services (See drawing below)

PPDIOO Life Cycle Reference: http://mars.tekkom.dk/mediawiki/index.php/CCNP_TSHOOT_642-832/Chapter_1