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between your computer and a Exercise 3.7
simulated web server.
(b) Explore how simulated 1. Tanzania Institute of Education Chapter Three: Advanced Computer Networks
network configurations affect has been allocated the network
packet routing and delivery. address 211.77.20.0 and needs to
FOR ONLINE READING ONLY
2. Examine network layer protocols create 6 subnets. The largest subnet
(a) Research how protocols at must accommodate up to 25 hosts,
the network layer (such as and future subnet sizes should not
IPv4 and IPv6) facilitate the exceed 30 hosts. Identify the valid
delivery of web content in subnets and the host IP addresses
various simulated network within each subnet.
environments. 2. A school is granted site address
(b) Compare and contrast the (IP address) 11.0.0.0/24 for its use.
functionalities of different Design the subnets for the school
network layer protocols using considering the following number
simulation scenarios. of hosts:
3. Study the role of routers
(a) Utilize simulation to observe (a) Subnet A with 50 hosts
the role of Layer 3 devices (b) Subnet B with 25 hosts
(routers) in managing (c) Subnet C with 10 hosts,
simulated outgoing and and
incoming packets. (d) Subnet D with 5 hosts
(b) Simulate scenarios where 3. NECTA head office is granted
routers handle packets exiting the site address 135.65.20.31 by
your simulated network and the regional ISP (Internet Service
packets entering your network Provider) for its use.
from external sources.
4. Document your findings (a) Create 16 subnets for NECTA
(a) Record your observations and (b) Calculate the number of hosts
insights from the simulations. per subnet
(b) Compile your findings, (c) Determine the subnet ranges
including screenshots or
diagrams from the simulation,
into a portfolio for future Transport layer
reference and learning. The Transport layer is responsible for
segmenting and reassembling data into
Deliverables: a coherent data stream. It facilitates
Prepare a simulation report, include data exchange between end systems,
screenshots or diagrams to illustrate segmenting and reassembling data from
key simulation scenarios. upper-layer applications into a unified
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Student’s Book Form Five
Computer Science Form 5.indd 163 23/07/2024 12:33
