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Q. Categories of Encryption - Decryption ?
Categories of Encryption/Decryption
- Symmetric-key - encryption key (Ke) and the decryption key (Kd) are the same and secret
- Character-level
- Bit-level
- Public Key - encryption key is publicly known; decryption key is kept private
- RSA
User Datagram Protocol - UDP is a connectionless oriented transport protocol for use when the upper layers give error-recovery and reliability. UDP does not series data or re-assem
Q. What is Virtual LANs? Virtual LANs - LAN (Local area network) configured by software not by physical wiring Virtual LANs - Divides a LAN into logical, in
Repeaters - Operate only in physical layer - Connects two segments of the same LAN - Both segments must be of the same protocol - Only forwards frames; does not filter
Multicast An identifier for a set of interfaces (typically belonging to dissimilar nodes). A packet sent to a multicast address is delivered to all interfaces identified by tha
What is logical link control? One of two sublayers of the data link layer of OSI reference model, as explained by the IEEE 802 standard. This sublayer is responsible for mainta
Example of transport layer are:- a) TCP is connection oriented. b) UDP is connectionless
Can you determine routing loop issue in RIP protocol?
Why does collision happen in HUBS and repeaters?
What is a Web server? This new model of Client/Server having of thin, portable, "universal" clients that talk to super fat servers. In the easiest form, a web server returns do
i) Identify at least two items at every site that needs upgrading [2 Marks] ii) What type of WAN connection (link) might you use to connect the three sites to each other?
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