Which of the following is a group pf cells chosen to perform an action

When you reach a yield sign, yield to cross traffic and before you enter the intersection. a. flash your headlights b. wait for a signal c. wait five seconds d. wait for a safe gap

Idon understand these and need some ! ?

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.