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Question:
(a) What is Network Address Translation (NAT)? Why is it used?
(b) Given a following information by your ISP about your newly acquired Frame Relay connection:
Global IP address: 202.123.21.120 /30
You are required to design a network which constitutes of a LAN having 3 subnets (with Internet connectivity) for each department in your company.
Each subnet is assumed to have each a maximum of 28 hosts including a file server and an internal web server.
Note: You must use an internal Class C addressing scheme.
Draw the network layout and giving maximum information about:
• IP, Subnet Mask & Gateway addresses of all devices and servers and 1 host from each subnet.
• Type and hierarchy of hardware devices, transmission media and network topology you might adopt, with justifications, where necessary.
Question: (a) State whether the following statements are TRUE or FALSE. Justify your answer. i. A good site security policy will require that users use computer generated p
ADDRESS RESOLUTION AND PROTOCOL ADDRESSES Address resolution (ARP) is a network interface layer protocol. Protocol addresses are used in all upper layers. Address resolution s
To master the complexity one must apply the given points. CONCENTRATE IN UNDERSTANDING THE CONCEPTS: Instead of details of wires used to connect computers to a specif
CSMA/CA Wireless needs collision avoid ness rather than collision checking. Transmitting computer puts very short codes to receiver. Receiver responds with short message getti
How to pretect my computer from attacking
Intercultural sensitivity: recognising differences You represent a Mauritian computer company which is negotiating to buy hardware from a manufacturer in Japan. In your first
The Security Systems Development Life Cycle (SecSDLC) The same phases which is used in traditional SDLC can be adapted to support specialized implementation of IS project,At its
Protocols for Secure Communications Securing Internet Communication by using S-HTTP and SSL Secure Socket Layer (SSL) protocol is a protocol that uses public key encryption t
SECURITY ANALYSIS Overview • Know yourself: examine, identify, and understand the information and systems which are currently in place • Know the enemy: examine, identify,
Question : (a) How does a 2-key rollover differ from the N-key rollover? (b) Why is isolation so important in interfacing? (c) Explain what is software debouncing.
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