Linux Fundamentals Networks

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If you are having problems with your Ethernet connection, what command could you run to find information on the problem? (select the best answer)

dmesg | grep eth0

Which command allows you to see the IP configuration of your Linux PC ?

ifconfig

Which of the following command will list all current NIC adapter information?

ifconfig

The daemons associated with network services listen for network traffic associated with a particular ______.

port

What devices are used to transfer information from one network to another?

routers

A utility that will copy an ordinary file from a local to a remote computer while ensures its confidentiality by encrypting the file while in transit over the network is.

scp

Utilizing the secure shell with which of the following commands can one transfer files to a remote system with?

scp

Which of the following commands will take down interface eth0?

sudo ifdown eth0

What is the proper way to stop the ssh server?

sudo service ssh stop

Which of the following port numbers is associated with ssh?

22

The TCP flags involving established a three-way handshake involve:

True

The host utility looks up the IP address of a hostname.

True

The subnet mask is used to differentiate the network portion from the host portion in a TCP/IP address.

True

To stop pinging, type <ctrl+c>.

True

Use the ping command to test the network connection.

True

scp is a utility that will copy an ordinary file from a local to a remote computer, and ensures its confidentiality by encrypting the file while in transit over the network.

True

ssh encrypts all traffic that passes across the network between the local and remote computers, whereas telnet and rlogin do not encrypt.

True

The TCP/IP address 127.0.0.1 is referred to as the ______.

loopback address


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