ccna question and answer 2018

ccna question and answer 2018.D.ready/not ready signaling and windowing techniques7.Multiplexing of connections is achieved using number. A. sockets B. hardware C. network D. sessions8At which layer of the OSI reference model do the following various devices primarily operate? Devices:(1) transponders, (2) routers, (3) NICs, and (4) switches. Layers: (a) physical layer, (b) data link layer, (c) network layer, and (d) transport layer. Note that not every layer has a corresponding device, while the same layer may correspond to multiple devices.9. Please indicate for each of the followingPDU name corresponds to which layer of the OSI reference model.PDU names: (1) data, (2) frame, (3) packet, (4) bit, and (5) data segment. Layers: (a) application layer, (b) representation layer, (c) session layer, (d) transport layer, (e) network layer, (f) data link layer, and (g) physical layer.10. In the network shown in Figure 2.6, which of the following statements is true when PC-A wants to send data to PC-B, assuming that the Layer 2 medium is Ethernet and Layer 3 uses TCP/IP? A.When PC-A generates a frame, it adds its MAC address to the source address field and adds the MAC address of Switch A to the destination address field B.When PC-A generates a frame, it adds its MAC address to the source address field and adds the MAC address of PC-B to the destination address field C.When PC-A generates a frame, it adds its IP address to the source address field and adds the IP address of Router A to the Destination address field D. When PC-A generates a frame, it adds its IP address of Router A to the Source address field and adds the IP address of PC-B to the Destination address fieldE. When Router A generates a frame, it adds its MAC address to the source address field and adds PC-B's MAC address to the destination address field2.7 Answers to Self-Test Questions