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Q. Show VPNs Security and the Internet Model?
- VPN's Security and the Internet Model
- Application layer - provide for each application protocol (other layers may be left vulnerable)
- Transport layer - difficult to change existing protocols
- Network layer - IPsec (additional security for IP)
- Data Link layer - does not provide end-to-end security
Q. Explain the Bit-Level Encryption? Bit-Level Encryption - Data is divided into blocks of bits then altered by encoding/decoding, permutation, substitution, exclusive OR
The Data link layer performs the following: Responsible for physically passing data from single node to another. Translates messages from the upper layers into data frames and adds
FAULT TREE ANALYSIS Reliability engineering, in a nutshell is concerned with failures. How failures occur, how often they occur, and how to minimize them are the basic proble
What is a Database Server? With a database server, the client passes SQL requests as messages to the database server. The results of every SQL command are returned over the net
QUESTION (a) Explain briefly what is meant Client-server Computing? (b) Distinguish among client process and server process (c) What are the four basic characteristics of
Retransmission of packets The disadvantage of thronging away a correctly received packet is that the subsequent retransmission of the packet might be lost or garbled and
8088 pin diagram
Write the characteristic of Store and Forward switches? A) Store and Forward switch will not forward fragments. B) The longer the frame, the longer the delay (latenc
What is a LAN? LAN stands for Local Area Network. It refers to the connection among computers and other network devices that are located within a small physical location.
- EIA/ TIA specifies and RJ-45 connector for unshielded twisted-pair (UTP) cable. The letter RJ stand for registered jack and the number 45 refers to a specific wiring sequence.
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