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Wireless networks have become a pervasive part of society today. Let's focus our discussion on Wi-Fi also known as the IEEE 802.11 standards group. The latest member of the 802.11 family is 802.11n. What are some immediately noticeable differences between LANs and Wireless LANs?
As security manager at XYZ Corporation, you are responsible for managing intrusion detection environment. If you were given the ability to build the environment from scratch, would you use network based IDS, host based IDS, or a combination?
Access control is handled at ____ layer during routing processrouter consults a list of rules before forwarding incoming packet to determine whether a packet meeting certain criteria.
Let N users participating in audio/video conference by using IP multicasting. How many distinct SSRCs are required?
Let RTP session consisting of four users, all of which are sending and receiving packets to same multicast address. How much RTCP bandwidth will each receiver be allocated?
How would you utilize this information in the decision-making process to help the company grow?
Given a DAC system explain how a MAC system could be "implemented" on top of this DAC system. Explain any problems and assumptions.
Create several duplicate scenarios and modify the interarrival times for all the Ethernet stations to 0.0008, 0.002, 0.003, 0.005, and 0.006, respectively.
If IPSec gives security at network layer, why is it that security mechanisms are still require at layers above IP?
Terminal A is sending data to terminal B using a sliding window protocol with the window size equal to 5 and the maximum sequence number equal to 6.
The main memory of a computer is organized as 128 blocks, with a block size of 16 words. The cache has eight block frames. Illustrate direct mapping and address bits that recognize the tag field, the block number, and the word number.
Now that you know more about ConnectSpree's network, you begin drawing a map of its devices and connections, starting with its internal LAN.
Which of machines A-E is the client and which is the server? In an X-windows environment, a program is running on machine A, displays windows on machine B and a window manager on machine C controls the look and feel of the windows.
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