Question Detail OSI reference model has how many layers 457 3 Answer: Option C Ad Similar Questions : 1. Straight cable is used to connect Host to switch or hubHost to RouterBoth of above None of above Answer: Option A 2. Binary value of 128 is 10000000101000001100000010100100 Answer: Option A 3. MAC address is written in which format Binary formatSimple numeric formatHexa decimal formatnone of above Answer: Option C 4. Which among following is not a router fuction Packet SwitchingPacket FilteringInternetwork communicationForwarding broadcasts by default Answer: Option DExplanation:It is advantage of router that : They do not forward broadcasts by default They can filter the network based on layer 3 information 5. Framing is done on which layer Datalink LayerPhysical LayerTransport LayerApplication Layer Answer: Option A Read more from - Internetworking Question Answers