Data Communication & Network

Q1. Determine if the following statements are True or False 1- The star topology is mainly used for LANS but it can be used also for WANS. Irue 2. Transport layer flow control tries to reduce the speed of the sender computer to avoid having congestion at the network routers. False 3. The DSL or optical fiber (eLife) Internet connection from your home to Etisalat can be considered a point-to point WAN. True + The network layer in a sender machine interacts with the network layer in another machine by exchanging protocol data units (PDUS) True 5 One of the distadvantages of the mesh topology is that the link capacity is dedicated only to two stations. False Addressing is one of the functionalities of the network layer. Irve 7- If 10 nodes are connectod in a network with a full mesh topology, the number of links in the network has to be 45. True 8- The data flow between a computer's keyboard and the computer central processing unit (CPU) is half-duplex. False Q2. Choose the correct answer 9- If a server is connected to a number of computers using a bus topology, we can say that Fa) there is a poinm-0-poin link betwoen the server and the computers O there is a multipoint link between the server and the computers (c) there are multiple links between the server and the computers 10- The UAEU main campus network O is a LAN (6) is a WAN (c) is bigger than a LAN but smaller than a WAN