how to add a new host to DNS?

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Which is the main sendmail configuaryion file ?

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What is tunnel mode?

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You have connected a Token Ring Network (4MBit/s) and an Ethernet Network. Copying a 5MB File from Ethernet to Token Ring takes 30 seconds. Copying from Token Ring to Ethernet takes 2 Minutes. Why? a. the Token Ring network is slower b. the packet size is larger with Ethernet than Token Ring. c. the packet size is larger with Token Ring than Ethernet. d. TCP windows size

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what is VPN ?

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Command to troubleshoot DNS problems Host name resolution problems:

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Your class C network has been subnet-ed. Mask for the new subnets is 255.255.255.224. How many subnets and how many nodes per subnet can you have ?

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On what layer does SMB protocol reside? a. application b. presentation c. session d. transport

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if one server is down, whenever restart the machine we get ok prompt what is the problem?

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How network topology affect your decision in setting up a network?

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The last octet of the broadcast address of a Class C network is :

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What is the command to start a service in Windows from command line?

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