Assume you have a text file named text. txt. Open the file for reading. Create a second file called caps. txt for writing. Scan text. txt, until you reach the end of file. Whenever the program encounters a capital letter, copy that letter to caps. txt. Close all files when completed. Check if there is an error in opening or creating a file. If there is an error, tell the user and exit the program.

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.

This os integrated the processing power of windows nt with the easy-to-use gui of windows 98. windows 2000 windows 3.11 windows for workgroups windowa millennium edition

Q14 what is most important for you to choose before you build a network? a. private network b. nos c. network media d. network protocol e. directory service