6.3A-4. Multiple Access protocols (4). Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times t=0.1, 1.4, 1.8, 3.2, 3.3, 4.1. Each transmission requires exactly one time unit. 1 45 6 t=0.0 t-1.0 t-2.0 t-3.0 t-4.0 t=5.0 For the CSMA/CD protocol (with collision detection), indicate which packets are successfully transmitted. You should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy and that that node will not attempt a retransmission of that packet until sometime after t=5. If a node senses a collision, it stops transmitting immediately (although it will still take .2 time units for the last transmitted bit to propagate to all other nodes). Hint: consider propagation times carefully here. [Note: You can find more examples of problems similar to this here.]

please look at the two pics and answer please

look at the  two q please

Implement in Packet Tracer a network of a fictitious organization with the following characteristics: - The organization will be made up of 4 units: 3 local Ethernet networks + 1 remote Ethernet network (via the Internet)- Local dependencies must connect to each other through a Backbone (links) between Switches- There must be 2 VLANs in 2 local dependencies- Throughout the organization there must be 2 IP networks with 2 subnets each. The different IP networks must communicate with each other.- A static routing method or a dynamic routing method must exist- The remote unit must be integrated into some IP network through a VPN link- Each local office must have IP telephony (VoIP). At least one IP phone for each unit.- In each unit there must be at least 5 user PCs- Each PC must have Automatic IP configuration (DHCP)- DHCP, DNS and Web Servers must exist - All rooms must have access to the Internet through NAT-PAT- There must be a Wi-FI network in each unit