1. (a) A block of 8192 addresses is available for allocation to hosts, starting with 192.24.0.0.The following organizations request addresses, Tithe an Oireachtais, An Post, and RaidióTeilifís Éireann.Tithe an Oireachtais need(s) 2048 addresses and is assigned 192.24.0.0/21. An Postneeds 4096 addresses and is assigned 192.24.16.0 and the subnet mask 255.255.240.0.Finally, Raidió Teilifís Éireann asks for 1024 addresses and is assigned 192.24.8.0/22.(i) How many addresses are left after this allocation has been performed?(ii) If any addresses are available, give the network prefix for the available network.(iii) Give the first valid address and the last valid address of the available address space.[10 Marks]

The given problem deals with IPv4 address allocation and subnetting. To solve it, we need to…

Answered: 1. (a) A block of 8192 addresses is…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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An ISP is granted a block of addresses starting with 180.100.0.0/16. The ISP needs to distribute these addresses to four groups(A,B,C,D) of customer as follows: The group 'A' has 32 customers; each needs 256 addresses. The second 'B' group has 128 customers; each needs 128 addresses. The third 'C' group has 128 customers; each needs 64 addresses. The Fourth 'D' group has 32 customers, each needs 32 addresses. Design the Network of ISP for both IPv4 and IPv6(you can choose IPv6 addresses as own) according to above conditions and find out how many addresses are still available after these allocations. Analysis network performance for both networks and take a decision which one is the best. 1) ii) iii) iv)
182. Refer to the exhibit. Statements A, B, C, and D of ACL 10 have been entered in the shown order and applied to interface E0 inbound, to prevent all hosts (except those whose addresses are the first and last IP of subnet 172.21.1.128/28) from accessing the network. But as is, the ACL does not restrict anyone from the network. How can the ACL statements be re-arranged so that the system works as intended?
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An ISP is granted a block of addresses starting with 129.80.0.0/16. The ISP wants to distribute these blocks to 2600 groups as follows: i. The first group has 200 medium sized businesses; each needs 14 hosts. ii. The second group has 400 small businesses; each needs 6 hosts. iii. The third group has 2000 point-to-point links; each needs 2 hosts. iv. Design the sub-blocks and give the slash notation for each sub-block
An ISP is granted a block of addresses starting with 129.80.0.0/16. The ISP wants to distribute these blocks to 2600 groups as follows: The first group has 200 medium sized businesses; each need 14 hosts. The second group has 400 small businesses; each need 6 hosts. iii. The third group has 2000 point-to-point links; each need 2 hosts. Design the sub-blocks and give the slash notation for each sub-block. Find out how many addresses are still available after these allocations.
An Internet Service Provider (ISP) is granted a block of addresses starting with 150.80.0.0/22. The ISP needs to have 4 subblocks of addresses to use in its four subnets: one subblock of 200 addresses, one subblock of 330 addresses, one subblock of 100 addresses, and one subblock of 62 addresses. With the available information, a) Calculate the number of addresses in the block and determine the address mask, first address, and last address of the block. b) Determine the number of allocated addresses, subnet mask (n), address mask, first address, and last address for each of the subblocks. c) Calculate the number of unused addresses and provide its first address and last address. d) Illustrate the original block and the subblocks using two figures. The figures must contain the number of addresses, mask, first address, and last address.
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Q.7. Design and implement a client/ Multi-threaded Server Chat application where a set of clients are able to send their request to the Multithreaded Server. In this application, messages that are exchanged between client and server, must be encrypted using AES encryption algorithm. After receiving the message, each party (client or server) perform decryption operation and show the content of message on the terminal.
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D Five network segments are chained with m TU spes of 2800, 0, 1360, 3100 PMTU Size is > 2800 100 890 9920 7890 890,192 D A differenf value: ०१४/ 1100 bytes. This nefwerk
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