Is the nyquist theorem true for optical fibre or only for copper wire ? Explain.
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what is the role of Domain controller in lan ? What is the active directory ?
Coaxial Cable?
How many layers are there in OSI ? Why is it called OSI model ?
Which layer is used to convert packets to frame
what is meant by printer configuration?
What are the principles that were applied to arrive at the seven layers in OSI model?
What is packet filter?
What are the advantages and disadvantages of switch
1).what is forest? 2).what is dns and dhcp port no's? 3).what is file system? 4).what is terminal server?
what is firewall?
What is ARP and RARP?
Assuming classful addressing, find the no of subnets and the no of hosts per subnet for the following blocks: (i) 122.45.77.32/20 (ii) A class B block having mask of 255.255.192.0