b) Protocols 10 W c) ill be used when devices communicate are called. Firewall d) Registers 35) The network communication that only allows computers on the network to talk to each other and not a outside is called: a) Intranet b) Internet other and not accessible from c) LAN d) Topology For two's complement calculations, excess notation table is given below. Bit Pattern Value Representation 111 110 2 101 100 Oil 010 001 000