Assume that you have been assigned the 200.35.1.0/24 network block. Specify the subnets of 200.35.1.0/24 in binary format and dotted decimal notation. Define an extended network prefix that allows the creation of 6 subnets and 20 hosts on each subnet. (just write the network mask in CIDR or Decimal format) For the answer of (2) above, what is the maximum number of hosts that can be assigned to each subnet? For the answer of (2) above, what is the maximum number of subnets that can be defined? List range of host addresses that can be assigned to the first subnet (with the smallest subnet prefix) that you derived from sub-question 4. What is the broadcast address for subnet 200.35.1.192/27? Suppose your company uses CIDR and has the IP address range from 200.35.56.0/24 to 200.35.113.0/24. Aggregate (combine )this set of (58) IP /24 network addresses to the highest degree possible. Be careful so that it does not overlap with other ip address not in the range.

Consider the figure below in which, +--+ +--+ +--+ HO | |H2| | H4 +--+ +--+ +--+ IO | EO 11 | E1 14 | E4 1 1 1 1 1 1 +- +-+ +-+ LAN 1 1 1 I +---+ I +----| B|----+ E2 +---+ E3 +--+ +--+ +--+ |H5 | H81 |H9| +--+ +--+ +--+ 15 | E5 18 E8 19 | E9 1 1 1 1 1 1 -+-+ +-+--- LAN 2 1 1 LAN 3 | 16 +---+ 17 | +---- R ----+ E6 +---+ E7 B is a bridge. Its filtering table is initially empty. R is an IP router. HO, HI, H4, H5, H8 & H9 are hosts. 10, 11, 14, 15, 16, 17, 18 & 19 are 32-bit IP (interface) addresses, as shown. EO, E1, E,... , E9 are 48-bit MAC (interface) addresses, as shown. Suppose host H4 sends an IP packet to host H9. This packet will, of course, be encapsulated in an Ethernet frame. a) What will the source Ethernet address in the header of that frame be as the frame traverses LAN 2? b) What will the destination Ethernet address in the header of that frame be as the frame traverses LAN 2? c) What will the destination IP address in the header of the encapsulated packet be as the frame traverses LAN 2? d) What will the source Ethernet address in the header of the frame encapsulating the packet be, as that frame traverses LAN 3? e) What will the destination Ethernet address in the header of that frame be as the frame traverses LAN 3? f) What will the source IP address in the header of the encapsulated packet be as the frame traverses LAN 3? g) Bridge B will, of course, receive the frame off of LAN 2. Will it transmit a copy of it on LAN 1? h) Now, suppose that H9 sends a reply back to H4. Will bridge B transmit a copy of that reply on LAN 1? i) After it receives that reply, suppose that H4 now sends a packet to H5. Will bridge B transmit a copy of the frame encapsulating that packet on LAN 1 j) Will router R forward the packet of the part (i) above to LAN 3? Mixed questions: Give the differences between hub and switch Why do we need the hardware address (or MAC address), and why do we need the IP address. Give an usage example of these two addresses. What ARP stands for? What is it application senario? Why do you need DHCP? Why do you need DNS? If you cannot connect to any DNS server, what do you need to know and to do to connect to a remote web server