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Category: Networking

What is physical layer of OSI model and what are the main concerns of physical layer?

Category: Networking

What are the physical layer devices in network? Give me the types of physical layer devices.

Category: Networking

What is a Fiber optic cable and what are the types of fiber optic cables?

Category: Networking

What is twisted-pair cable?

And what are the types of twisted-pair cables?

Category: Networking

What are Network support layers and user support layer in OSI model?

Category: Networking

What is the definitions for unicast address, multicast address and broadcast address?

Category: Networking

What are the network protocols used at the data link layer of the OSI model? These terms used in the CCNA exam and I am following a CCNA course and if you can give me the answers it really helpful for me.

Category: Networking

What are the key functionalities of the Cisco hierarchical model?

Category: Networking

Hello all,

Even after recharging my internet connection I get this error on opening some websites.

Does anyone know if it is the internet problem or something else?

Thanks for the help.

Network Error (tcp_error)

A communication error occurred;””

The web server may be down, too busy, or experiencing other problems preventing it from responding to requests.

You may wish to try again at a later time.

Category: Networking


I am really interesting in networking and currently following a diploma in networking in local university.

I heard about a Blu Modem from my friend.

What is this and why it calls as Blu modem?

Thank you