Design and implement a circuit that operates as a gated binary counter. When the counter is enabled, it should increment from 000, 001, 111, and finally roll over back .... to 000 and repeat the sequence. When disabled, the counter should hold its present value. Choose the flipflop that allows you to minimize the number of additional gates needed to realize this functionality.

Draw block diagrams to implement a 4 to 1 with 4 bits multiplexer. The data input lines are 4 bits wide. Please decide how many selects do you need. And write the final equation for inputs and output in both your report and block diagram. Do the simulation and save the screenshot into your report.

4.3-4a. IPv4/IPv6 co-existence: tunneling (a). Consider the mixed IPv4/IPv6 network shown b where an IPv4 tunnel exists between IPv6 routers B and E. Suppose that IPv6 router A sends a datagram to IPv6 router F. IPv6 datagrams are shown in blue; the IPv4 datagram is in red (cont. the encapsulated IPv6 datagram in blue). A IPv6 (a) B IPv6/v4 IPv4 (b) At point (a), the IP version field in the datagram is: At point (a), the source IP address is that of host: D IPv4 Perform the matching below to indicate the datagram field value and type at point (a). At point (a), the destination IP address is that of host: At point (a), the number of bits in the destination IP address is: E IPv6/v4 IPv6 (c) [Choose ] [Choose ] [Choose ] [Choose ]

This is the question: Suppose that we want to synthesize a circuit that has two switches x and y. The required functional behavior of the circuit is that the output must be equal to 0 if switch x is opened (x=0 ) and y is closed (y=1); otherwise the output must be 1. My friend sent me the answer which I will attach but I have no idea what is going on .. can someone please explain in detail?