CompTIA Network+ N10-008- Domain 1.1-1.2 Practice Questions with Correct Answers

At which layer of the OSI model do cables operate? Correct Answer Physical Layer (Layer 1) What is the highest level of the OSI model? Correct Answer Application Layer Which layer of the TCP/IP model corresponds with the OSI Transport layer? Correct Answer Transport Layer (Layer 4) At which layer of the OSI model does routing take place? Correct Answer Network layer Which network layout has a dedicated connection from each device to every other device? Correct Answer A mesh network What are two disadvantages of the star topology? Correct Answer Total installation cost can be higher due to the larger number of cables. If the central hub fails, the entire network goes down. What are two disadvantages of the mesh topology? Correct Answer Mesh topologies are expensive to implement and are very complex and difficult to maintain. Which layer of the TCP/IP model corresponds to the OSI network layer? Correct Answer Internet layer (Layer 2) How is partial mesh topology implemented? Correct Answer By establishing multiple connections on nodes that have requirements for a large volume of data transfer. What are two disadvantages of the bus topology? Correct Answer If the backbone cable breaks or otherwise develops a fault, then all computers are off the network. There is loss of signal strength if the backbone extends over large distances. At which layer of the OSI model does ICMP function? Correct Answer The network layer. A systems engineer configures IP addresses for a SOHO router. In doing so, the engineer uses calculations to determine adresses for two subnets. What value does the engineer determine the binary value of 1010 relate to in hexadecimal? Correct Answer The character A A networking engineer is troubleshooting issues with a router. At which layer of the OSI mode is the engineer troubleshooting? Correct Answer Layer 3 Network