12 Listed are four strategies that can be used to provide a transport user with the address of the destination transport user. For each one, describe an analogy with the Postal Service user. a Know the address ahead of time. b. Make use of a "well-known address." c. Use a name server. d. Addressee is spawned at request time.
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- This is an example of what happens when one computer sends a packet of data to another computer over the Internet. An error occurred when sending the packet because of a faulty logical destination address. What happens to the package after it's been delivered? To the source computer, how will this circumstance be communicated?What are your thoughts on the sentence that states, "There is no idea of client and server sides of a communication session"? Where is the value in that?How would you configure static routes as a network administrator in the following circumstances?
- A client application establishes a connection to a server, performs an operation, and gets feedback. What then? Do other tasks work over this link? Contrast the methods used by SMTP, FTP, HTTP, POP, and IMAP. When deciding whether to keep or sever ties between operations, what factors should be considered?Check all of the phrases below that state a true property of a local DNS server. Group of answer choices A.The local DNS server can decrease the name-to-IP-address resolution time experienced by a querying local host over the case when a DNS is resolved via querying into the DNS hierarchy. B.The local DNS server holds hostname-to-IP translation records, but not other DNS records such as MX records. C.The local DNS server record for a remote host is sometimes different from that of the authoritative server for that host. D. The local DNS server is only contacted by a local host if that local host is unable to resolve a name via iterative or recursive queries into the DNS hierarchy.Assume that a client can use UDP to obtain a file from a distant server at a known address. The client initiates the request for a file name, and the server responds with a sequence of data packets containing various file components. To ensure delivery reliability, the client and server use a stop-and-wait protocol. Is there anything else wrong with this protocol aside apparent performance issues? Consider the possibility of process failure.
- A client application establishes a connection to a server, transmits an action, and waits for a response. What happens then? Is the connection still accessible for other operations? Compare the protocols SMTP, FTP, HTTP, POP3, and IMAP. What are the advantages and disadvantages of maintaining or terminating the connection between operations?Assume that at the network layer, a computer sends a packet to another computer on the Internet. The logical destination address of the packet is incorrect. What happens to the package? What is the most effective method of notifying the source computer?Suppose Alice, with a Web-based e-mail account (such as Hotmail or Gmail), sends a message to Bob, who accesses his mail from his mail server using POP3. Discuss how the message gets from Alice’s host to Bob’s host. Be sure to list the series of application-layer protocols that are used to move the message between the two hosts.
- Is there a difference between iterative and non-iterative requests, authoritative and root servers, and DNS records?Given that you have submitted many requests to a server, each with its own id (or unique identification) and priority (or priority).Requests = [(id1, p1), (id2, p2), ……, (idn, pn)], where p1 > p2 > …. > pn. Provide the best algorithm or pseudocode for dealing with all of the requests.Sort DNS records according to their kind. Give a short description of each with examples, as well as an explanation of why they are utilized. Is it feasible for a web server and a mail server in an organization to use the same alias for a hostname?