'Time-division multiplexing\r'

'A drug customr of a inhabitation tele phone picks up her phone and possesss a telephone remember to a friends home telephone in another part of town. Which of the pursuance is desirely to be consecutive close to this mention? A. It manipulations a single pair of wires on the topical anesthetic loop at all(prenominal) end of the call 2. Which of the pursual atomic number 18 services that phone services have offered as demented services over the years? A. Switched additive circuits B. Dedicated digital circuits 3. This chapter claims that IP routers work well as devices that connect to many different types of interfaces, including LANs and WANS.Which of the succeeding(a) answers list the reasons why routers do well in this role? A. Routers have much fast-paced CPUs and eject do the hard work to translate the entree datalink header into the outgoing data-link format D. Routers dis ride old(a) data-link headers and insert new data-link headers as part of their lo gic, which treats each Interfaces lower-layer detallds as Independent from each other 4. An enterprise interlock has many routers that connect to both a LAN as well as the WAN. Which of the succeeding(a) statements best describe how routers typically use and ideate about their WAN connections?B. As a carry-over service to deliver IP packets to the next Ip router 5. An enterprise builds a WAN devise on paper. The main rate, where all the servers sit, is shown in the center ofa ne 2rk diagram. The WAN has a leased note from that berth to every remote site, with the remote sites drawn more than or less the edges of the drawing In a big circle. no(prenominal) of the remote sites have a leased neckcloth directly betwixt them. Which of the interest name is virtually typically use to describe this WAN analysis situs? D. Hub-and-spoke 6. A U. S. based company wants to determine a leased cable television amongst ii sites, with the eased occupation using the traditiona l T-carrier DSO, DSI, and DS3 types of lines. Which of the following answers describes the look sharp and distances for the leased line? A. No faster than 43,736 Mbps (T3) D. No literal distance Ilmltatlon 7. A phone service client has purchased a Tl leased line between deuce sites. The customer has al straightaway bought a router for one site, with a serial publication interface card with a built-in CSU/DSU. Which of the following answers lists other physiologic parts that the customer will need for that sites founding of the Tl leased line?B. A serial cable 8. A phone service customer has a Tl leased line between dickens sites, called sites A and B. he telco has several switches between sites A and B that use T3 drawers. These switches use the T3 boxershorts along with time-division multiplexing (TDM) to compel the leased line from site A to B. which of the following answers is unbent about how TDM industrial plant in this design? C. The switches map the Tl customer lin es to one of 28 different frequencies in the T3 t escapeks 9. A telco net has TDM switches in the CO, ready to support Tl leased lines to customer sites.Two much(prenominal) switches have a single T3 automobile trunk connecting the two switches, set aside to support T Is that run Just between those two co swltcnes. nlcn 0T tne Tollowlng answers Dest aescrlDes tne numDer 0T customer T Is the telco gouge support with these switches and the trunk? C. 28 10. A customer ordered a full Tl leased line between two sites. The telco implemented that leased line in its network using the T-carrier technology discussed in this chapter, with DSI, DS2, and DS3 lines plus switches that use time-division multiplexing (TDM) logic.Into which of the following general WAN categories does this service fit? B. Packet reverse 1 1 . A telco customer orders a leased line between sites A and B, with put across speed of 1. 024 Mbps. The customer plans to use an external CSU/DSU at each site. The telco us es only T-carrier technology and none of the more modern options like SONET, ATM, MPLS, or metro Ethernet. Which of the following answers is admittedly about the speeds employ on this link? B. The physical line between the telco CO and site B uses a line speed of 1. 2544 Mbps 12.A telco customer orders a leased line between sites A and B, with requested speed of 512 Kbps. The customer plans to use an external CSU/DSU at each site. The telco uses only T-carrier technology and none of the more modern options like SONET, ATM, MPLS, or Metro Ethernet. Which of the following answers is true about the speeds used between the router and the CSU/ DSU? A. THe CSU/DSU controls the routers displace and receiving speeds using clocking 13. Which of the following answers are true about DSI framing and channels? A. Each anatomy has 193 bits C.The frame up groups 8 bits together for each of 24 channels, plus overhead 14. Which of the following data-link protocols was created to be used on lea sed lines, with support for multiple bed 3 protocols by including a Type field of operation that identifies the type of packet inside the data-link frame? C. palatopharyngoplasty 15. Which handle that exist in both the HDLC and palatopharyngoplasty headers have such relatively small use in point-to-point leased lines today, to the point that the PPP standards very allows the nodes to simply not bother to include these fields when unhorseing PPP frames?B. Address C. Control 16. esteem about the differences in a circuit switching the T-carrier system (ignoring analog circuit switching) versus packet switching. Which of the following answers are true about packet switching, barely not about circuit switching? B. The telco switch can queue the data wait on the congested outgoing to trunk to drop dead available D. The switches look at the bits to find an address, and use that address to make a choice where to send the bits 17.In a Frame put across network, which of the followi ng terms refers to the customer router that connects to the Frame Relay network? D. entrée link 18. Which of the following answers is not true about a Frame Relay network? B. be by the telco ahead of time, when the customers orders the service 19. A new Frame Relay customer is considering two competing Frame Relay design for his WAN. One design uses a full-mesh topology of PVCs between the 20 routers. The irregular design uses a partial mesh that looks like a hub-and-spoke design.Assuming that all other technical foul details not mentioned in this question are the same when comparing the two designs, which of these answers are true about the partial-mesh design but not true about the full-mesh design? A. Not all routers can send a Frame Relay frame alrectly to eacnotner B Frame Relay Trames, wlll De Torwaraea Dy tne network Dasea on the DLCI field in the Frame Relay 20. Which two of the following WAN services make good use of protocols that enterprise have used for many years, with those protocols being expanded and enhanced to create new types of WAN services?\r\n'