4.05-2. Generalized forwarding: specifying a flow table entry (b). Consider the three-node network below, that uses flow-based generalized forwarding (e.g., as in OpenFlow) in the network's routers.  In the question below, we'll want to create match+action entries in the flow table at router r2, with three ports labelled 1,2,3 (in black).  In the question, matches are constrained to be over only four fields: the IP source address, the IP destination address, the upper-layer protocol field of the IP datagram, and the destination port number of the transport-layer segment. The actions are either to drop or to forward(i), that is, to forward a matching packet on port i. The default action (unless stated otherwise) is that if a packet doesn't match a rule,

You're working on a procedure that will connect a node to a doubly connected set. The machine in which this operation will be run is prone to hardware faults on a regular basis. The list that your software must keep is extremely important. As if the computer crashes in the midst of performing the process, the software must maintain the list's accuracy. Provide the actual statements you'll need to update the list in your protocol. (There should be no more than a dozen statements on the list.) After each command, explain the impact of a system malfunction. Describe how you can change this protocol to recover the simple list's credibility in the event of a system breakdown.

2.  Recall the concept of Physically Unclonable Functions, which are an importantcomponent of hardware based security. Here is a simple scenario and simple protocol usingPUFs for authenticating a tag. In the protocol below, the Reader stores ALL possiblecombinations of Challenge-Response pairs for every tag it needs to authenticate. Duringauthentication, the Reader broadcasts the ID of the tag, and a greeting (Gn ). Every tag maysee this message, but only the one with the right ID will process the message. The right tagwith the ID in the message will then feed the greeting to its PUF and compute the responseSn. The response is then sent to the Reader. This should be clear from the Figure below. Forthe next round of authenticating the same Tag, the process repeats with a new Greeting(G n+1 ). Since the Reader has the responses, authentication is straightforward. Recall thatChallenges and Responses are typically 128 or 256 bit strings for RFIDs.From the protocol, and class, it should be…

Can anyone help me with basic client-server interaction using TCP sockets in network programming in c code that includes csapp.c and csapp.h. and a text file of the student record that include first name, last name, age, major, and graducation year. The ideas is have 4 choice: Add record, Search Age Range, Search graducation year, and Terminate.    In opition 1, it should collect all the data to the text file, in opition 2, it should search for age range from the text file. in opition 3, it should search the graducation year from the text file and if the year is not there it should print record not found. And opition 4, the client should close the connection and terminate.   studentRecord.txt: John,Doe,24,Computer Science,2023Jane,Doe,22,Mechanical Engineering,2020Charles,Babbage,21,Math,2022George,Bool,25,Math,2023Marie,Curie,26,Chemistry,2023   I know this isn't enough but I want to understand about the client-server interaction using socket interface. So please try to make it simple…