Import the numpy and scipy modules with the aliases used in this material. These modules will be used with user input integers to create arrays and perform a linear regression. Linear regression will be covered in a different chapter. Ex: When the input is:

Usually, when we sniff packets, we are only interested certain types of packets. we can do that by setting filters in sniffing. scapy’s filter use the bpf (berkeley packet filter) syntax; you can find the bpf manual from the internet. set the following filters and demonstrate your sniffer program again (each filter should be set separately): (a) capture only the icmp packet. (b) capture any tcp packet that comes from a particular ip and with a destination port number 23. (c) capture packets comes from or to go to a particular subnet. you can pick any subnet, such as 128.230.0.0/16; you should not pick the subnet that your vm is attached to.

When creating a budget, log fixed expenses before income. after income. after savings. at the top.

The two main ways in which marketers address the competition with their strategies are by satisfying a need better than a competition and by