COIT20261: Network Routing And Switching - Fully Qualified Domain Name - OSI model Assignment Help

Network Routing And Switching Assignment Help

TASK1 1 . What is the default mask for a class C address in CIDR notation? 2 . What is this IPv4 address also known as: 127.0.0.1 ? 3 . What is the minimum size of an IPv4 header? 4 . A host needs to send a message to a local node. The host has the IP address of this local node but not the MAC address. What protocol should it use to obtain this MAC address? 5 . If a router using RIP has five entries in its routing table, what is the maximum possible number of periodic timers that is can have? 6 . What is an Autonomous System in networking context? 7 . In a TCP connection, the value of cwnd is 5000 and the value of rwnd is 8000. The host has sent 4,000 bytes, which have not been acknowledged. How many more bytes can be sent? 8 . What is the bit size of the port address in a TCP header? 9 . Give two pieces of information that a DHCP server provides to a client. 10 . What is a Fully Qualified Domain Name (FQDN)? Explain. 11 . What is a DNS resolver? Explain. 12 . The following is an abbreviated IPv6 address: 13 . Write the full (expanded) address of this abbreviate IPv6 address. 14 . Layer 1 and layer 2 of the OSI model are sufficient to support the operation of a network in the delivery of data. Why then was layer 3 introduced? Briefly explain. 15 . What is encapsulation in network protocols? TASK2 1 . An organisation has been allocated a block of classless addresses by the ISP: 32.7.254.24/29 List all the addresses in this range. Then identify those from your list: the network address, the addresses that can be used by hosts, and the direct broadcast address. 2 . An organisation has been granted a block of addresses which starts at 28.150.40.0/22. Create the following 8 subnets for this organisation:

• 1 subnet with 512
• 3 subnets with 128
• 4 subnets with 32

Give your answer by copying and completing the following table in the examination Answer Booklet. 3 . The following is an ICMPv6 message fragment with its header (in hexadecimal): 01 04 B1 B5 00 00 00 00 00 00 00 00 00 .. .. Identify the information that is carried in the header, and state their values. What type of ICMPv6 message is this? What is the message? 4 . The figure below shows the configuration of a hypothetical section of the Internet. 5 . Construct the routing table of Router R2 for this configuration by copying and completing the following table in the examination Answer Booklet. TASK3 1 . In a communication between a client and a server, TCP is used to establish a network connection. This connection is established before any data is exchanged between the client and the server. Describe the 3-way handshake that establishes this connection. Use suitable diagrams to support your description. Your diagram(s) and explanation must be clear. Use your own words to describe, and do not copy directly from any source including the textbook. 2 . There are row entries for an IPv6 routing table. Identify the key fields in the row entry. Also clearly describe these fields. Use your own words to describe, and do not copy directly from any source including the textbook. 3 . Intradomain routers use the distance vector routing protocol and the link state routing protocol. Compare and contrast the features of the Distance Vector routing protocol and the Link State routing protocol.Do not simply describe the mechanism of a specific protocol. Use your own words to explain, and do not copy directly from any source including the textbook. 4 . In the area of wireless communications, LTE technology is used in mobile and data networking. Identify six key features of the LTE technology, and briefly describe how these features provide benefits to mobile data communications.

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