Most databases created today do not use the hierarchical or network models; however, these models, which are generally used with legacy mainframe systems, are still operational and so must be maintained.

a. true.
b. false.

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.

Which of the following examples has four beats in each measure?

To move a file or folder in microsoft windows, you can click and hold down the left mouse button while moving your mouse pointer to the location you want the file or folder to be, which is also known as.