A compiler takes all the codes and executes, whereas, an interpreter executes the codes line by line.

No your landlord can't enter your apartment without your consent for any reason. You paid the rent for it so you have the right to it.

I don't often bless my food each time I eat.

The similarities between LAN and WAN are:1) They involve two or more nodes.2) The networks communicate by the use of protocols.3) The can both be used in small geographical areas, although, WAN can go far distances ranging from towns to countries.

A router is used to connect different nodes (PCs) together, so as to share files and folders with each other.

The four (4) basic topologies are:1) Bus topology2) Ring topology3) Star topology4) Tree topology