13. Given the extended LAN shown in Figure 3.46, indicate which ports are not selected by the spanning tree algorithm. E B1 B7 B4 D B2 B3 B6 B5 F H
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- 1 . Given a Class B network, what is the length of the SubnetID and the HostID should be in order to get 100 subnets with each having 200 hosts? Hint: such question may have multiple answers, give all the possible answers57- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method; What will be the range of usable (assignable) host addresses in Subnet C? Select one: A. 192.168.15.64 to 192.168.15.128 B. 192.168.15.97 to 192.168.15.110 C. 192.168.15.140 to 192.168.15.191 D. 192.168.15.128 to 192.168.15.139 E. 192.168.15.193 to 192.168.15.254Switches make forwarding decisions: a. Using a routing table which maps IP addresses to specific ports b. Using the shortest path first algorithm and a topology database c. Using a look up database mapping IP addresses to MAC addresses d. Using a switching table which maps MAC addresses to specific ports
- 13.9 What is the purpose of an IP address mask? Suppose an IP address is identified as 222.44.66.88/24. What is the network address in this case? What is the host address? How many hosts can this network address support? Repeat this exercise for the IP address 200.40.60.80/26. 13.10 Explain the concept of a DHCP lease. How is it obtained? How is it used? What does it provide? 14.5 In recent years, much of the storage and communication of data has been in digital form, even if the source data is actually analog. Even most television is now transmitted digitally. What benefits and advantages are gained by using digital storage and signaling?52- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method; What will be the subnet mask of Subnet A? Select one: A. 255.255.255.192 B. 255.255.128.255 C. 255.255.255.128 D. 255.255.192.192 E. 255.255.192.058- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method What will be the network address of Subnet D? Select one: A. 192.168.15.232 B. 192.168.15.191 C. 192.168.15.112 D. 192.168.15.240
- 56- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method; What will be the subnet mask of Subnet C? Select one: A. 255.255.128.255 B. 255.255.192.0 C. 255.255.255.240 D. 255.255.255.192 E. 255.255.255.12853- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method; and What will be the network address of Subnet B? Select one: A. 192.168.15.64 B. 192.168.15.0 C. 192.168.15.32 D. 192.168.15.1QUESTION 27 The network portion of an IP address is the same for all the hosts on the same IP network. True False QUESTION 28 Ethernet and 802.11 use different frame structures. True False
- Short answer27. A company is assigned to an address block 136.23.12.64/26, now it needs to be further divided into four subnets of the same size. Question: (1) How long is the network prefix of each subnet? (2) How many addresses are there in each subnet? (3) What is the address block of each subnet? (4) What is the minimum address that each subnet can be assigned to a host? (5) What is the maximum address that each subnet can be assigned to a host?55- A network for a local office requires 4 LAN subnets as follows: · Subnet A - North Office with 31 hosts; · Subnet B - East Office with 15 hosts; and · Subnet C - South Office with 7 hosts. · Subnet D – West Office with 4 hosts. Given the IP Address 192.168.15.0 /24 and above described network requirements: 1. Design an optimal address scheme using Variable Length Subnet Mask (VLSM) method; What will be the network address of Subnet C? Select one: A. 192.16.15.128 B. 192.168.15.191 C. 192.168.15.96 D. 192.168.15.323.1 An end device was given the IP address of 198.168.4.35/28. Consider this address and indicate: 3.1.1 The network ID/address to which the host belongs. 3.1.2 The network broadcast address to which the host belongs. 3.1.3 The total number of hosts available in the network. 3.1.4 The total number of networks. 3.2 Consider two neighbours, Alice and Bob. Each have wireless IPv4 routers with integrated NAT. Each neighbour connects their laptop to their own wireless router, and each uses appropriate utilities to examine the IP address of each laptop. They realise the laptops have the same IP address. 3.2.1 How is that possible? 3.2.2 Justify one reason that wide-spread deployment of IPv6 would remove the need for the NAT devices.