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Tools needed for the assignment: Download a HEX editor from the web that can be used in analyzing your programs/data generation
Find the RFC that defines the FTP protocol. 1. Take any non text file (e.g. word document, mpg, excel or any application centric file) 2. Segmentation of a file and forming FTP datagrams: Read first 'x' number of bytes and use them as part of payload section of an FTP datagram 3. Encapsulate the FTP datagram into TCP datagram (generation of TCP packets) 4. Take the TCP datagram and encapsulate it into an IP Packet 5. Repeat steps 1-3 until all the contents of the file have been segmented and the corresponding IP packets have been generated. 6. Dump the generated IP packets into a different File. 7. Use the hex editor (or any other tool) to compare the payload content of the IP packet and the original read file to ensure that the contents were not corrupted. Use can use any values within the IP and the TCP header fields. Explain why you chose those values. Make sure the TCP and the IP checksums are properly calculated. Assume that the maximum IP packet size can be of 1400 octets (bytes). Assignment due on October 1, 2008
When data is transmitted using a statistical multiplexor, the individual units of data must have some form of address that tells the receiver the identity of the intended recipient of each piece of data.
Suppose a security-aware caching resolver receives DNS RRset at time t0 with signatures on it which expire at time t1 (where t0
Suppose a subnet with prefix 128.119.40.128/26. Provide an example of one IP address (of the form xxx.xxx.xxx.xxx) which can be allocated to this network.
What would be needed along with precautionary measures, and an overview of how the Internet works for the organization's office administration.
Let DES(x, K) represent the encryption of plaintext x with key K using the DES cryptosystem. Prove that y' = c(y) (i.e., if we complement the plaintext and the key, then the ciphertext is also complemented).
Coaxial cable is two-wire transmission system, determine the advantage of connecting outer conductor to ground? Explain the two layers: LLC & MAC.
Describe what types of problems could result from having a mix statically and dynamically assigned addresses on the same network.
Research both legacy and VoIP telecommunications. Determine which one is more secure and why.Define what it is and how it will be used in the telecommunications model. Provide 3 sources for your ideas.
You have been asked to design the entire cabling system for a medical instrument manufacturer's new central warehouse. The company already has three buildings within two city blocks.
When a message travels from source to destination through two routers, how many times the message M is modified before it reaches to the destination as M. Show your work to determine this number.
Discuss the role of Technology in improving the relationship building process Do you think that the setting of a PR department may be helpful for the ISP provider? Why?
The security manager is to estimate principal physical characteristics used for biometric user authentication, concepts of enrollment.
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