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Networking Interview Questions - Part 6


What protocol can be applied when you want to transfer files between different platforms, such between UNIX systems and Windows servers ?

Use FTP (File Transfer Protocol) for file transfers between such different servers. This is possible because FTP is platform independent.

What is the use of a default gateway ?

Default gateways provide means for the local networks to connect to the external network. The default gateway for connecting to the external network is usually the address of the external router port.

One way of securing a network is through the use of passwords. What can be considered as good passwords ?

Good passwords are made up of not just letters, but by combining letters and numbers. A password that combines uppercase and lowercase letters is favorable than one that uses all upper case or all lower case letters. Passwords must be not words that can easily be guessed by hackers, such as dates, names, favorites, etc. Longer passwords are also better than short ones.

What is the proper termination rate for UTP cables ?

The proper termination for unshielded twisted pair network cable is 100 ohms.

What is netstat ?

Netstat is a command line utility program. It provides useful information about the current TCP/IP settings of a connection.

What is the number of network IDs in a Class C network ?

For a Class C network, the number of usable Network ID bits is 21. The number of possible network IDs is 2 raised to 21 or 2,097,152. The number of host IDs per network ID is 2 raised to 8 minus 2, or 254.

What happens when you use cables longer than the prescribed length ?

Cables that are too long would result in signal loss. This means that data transmission and reception would be affected, because the signal degrades over length.

What common software problems can lead to network defects ?

Software related problems can be any or a combination of the following:
  • client server problems
  • application conflicts
  • error in configuration
  • protocol mismatch
  • security issues
  • user policy and rights issues

    What is ICMP ?

    ICMP is Internet Control Message Protocol. It provides messaging and communication for protocols within the TCP/IP stack. This is also the protocol that manages error messages that are used by network tools such as PING.

    What is Ping ?

    Ping is a utility program that allows you to check connectivity between network devices on the network. You can ping a device by using its IP address or device name, such as a computer name.

    Networking Interview Questions - Part 7 >>>




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