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Address resolution algorithms may be grouped into three basic types:
1. TABLE LOOKUP:
In Table Lookup, mapping or binding is stored in a table in storage, which the software searches when it requires to resolve an address.
2. CLOSED-FORM COMPUTATION:
In Closed-form calculation, the protocol address given to a computer is selected carefully so that computer's hardware address may be calculated from the protocol address using basic arithmetic and Boolean operations.
3. MESSAGE EXCHANGE:
Computers interchange messages across a network to give an address. One computer transmit a message that requests an address binding (translation) and another computer transmit a reply that has the requested information.
PROCESSING AN INCOMING ARP MESSAGE When an ARP message reaches, the protocol specifies that the receiver must operate two basic steps. First the receiver finds the sender's add
Host-Based IDS A host-based IDS (HIDS) resides on a particular computer or server and monitors activity only on that system. HIDS also called as system integrity verifiers as th
IDS Intrusion is a attack on information assets in which instigator attempts to gain entry into or disrupt normal system with harmful intent Incident response is an identificatio
QUESTION (a) (i) Describe Phishing attacks. (ii) Distinguish between Phishing and Spear Phishing attacks. (b) Describe two instances where an attacker sniffing on a netwo
B a s i c functions of e-mail system are given as follows: C o mp o sition refers to the procedure of creating messages and the answers. Though any text editor can be
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Internet Protocol IP Gives computer-to-computer communication. Host and receiver addresses are computers. This is also known machine-to-machine communication.
QUESTION (a) What do you understand by a VLAN? Provide one advantage of using a VLAN. (b) What is a trunk port in a VLAN? (c) A VLAN will be created using one or more
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Advantages and Disadvantage of Packet Filtering firewall Advantages One screening router can help protect entire network One key advantage of packet filter
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