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Q. Explain the diffrent types of Security Attacks?
Types of Security Attacks
Passive Threats:
- Traffic Analysis and
- Release of Message Contents
Active Threats:
Replay
- Masquerade-
- Modification of Mess. Contents
- Denial of Service
What common software problems can lead to network defects? Software related problems can be any or a combination of the following: - Client server problems - Application
Asynchronous or Statistical Time Division Multiplexing As we have seen synchronous TDM does not guarantee that the full capacity of a link in sued. In fact it is more like
Q Illustrate Unipolar line coding? - Simplest method is inexpensive - Utilizes only one voltage level - Polarity is habitually assigned to binary 1 a 0 is represented by
Q Illustrate Return to Zero encoding? - In NRZ-I long strings of 0s may still be a problem - May comprise synchronization as part of the signal for both 1s and 0s - How?
This new model of Client/Server having of thin, portable, "universal" clients those talks to super fat servers. In the easiest form, a web server returns documents when clients ask
Q. Common syntax of OpenMP? Every OpenMP directive begins with #pragma omp. The common syntax is #pragma omp directive-name [Set of clauses] where omp is an OpenMP key
Network Problems Q1 Consider the single-sender CDMA example in Kurose & Ross. What would be the sender's output (for the 2 data bits shown), if the sender's CDMA code were (
Explain use of RTP and RTCP Protocol?
Ku-BAND EARTH STATION This is most recent on-going project under which 40 remote sites will be installed for CDMA back haul and 60 sites will be installed for GSM back haul. 4
Bridged Ethernet Raises bandwidth by dividing the network into smaller networks allowing concurrent communications Separates collision domains because traffic is lower
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