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  Fix the problem in RedHat Linux: There is no repository enabled in /etc/yum.repos.d *** If you have no repository list in the redhat.repo file under /etc/yum.repos.d  directory, then you have to follow below instruction step by step. Un-register the system : subscription-manager remove --all subscription-manager unregister subscription-manager clean Re-register the system : subscription-manager register subscription-manager refresh Search for the Pool ID : subscription-manager list --available Attach the subscription : subscription-manager attach --pool=<Pool-ID>

  1.        54.   What valid host range is the IP address 172.25.22.55 255.255.255.224 a part of?               Answer:       172.25.22.33  -  172.25.22.62 2.         55.   EIGRP use ------- types of packets to communicate. What are these packets?               Ans: 5 Types of packets a.        Hello b.       Update c.        Ack d.       Query                            e.      Reply Video Link of above questions 1.           56.   What are the key fields of Hello packets those have to match in OSPF? Hello/dead interval Area ID Authentication DR IP BDR IP  ...

Networking Interview Questions 44-53 44. Do supernetting (Summarization) 172.16.128.0/18,   172.16.192.0/20   ,   172.16.224.0/22 Supernetting 172.16.128.0/18,   172.16.192.0/20   ,   172.16.224.0/22 172.16. 128.0                         1 0000000 172.16. 192.0                         1 1000000 172.16. 224.0                          1 1100000 172.16.                                   10000000 . 00000000 Ans...