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Computer Network Questions and Answers June 03, 2019

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Suppose that a 1-Megabyte message is sent over a serial link using TCP over IP over PPP. If the speed of the line is 56 kbps and the maximum PPP payload is 500 bytes, how long does it take to send the message?

What are the differences between intranets and extranets? Why would an organization want both of these implemented within their organization?

You have a 64-bit machine and you bought 4GB of physical memory. Pages are 64KB. (a) How many virtual pages do you have per process? (b) How many physical pages do you have? (c) In the translation from a virtual address to a physical address, how many bits of VPN are you mapping to how many bits of PPN (assuming you have just enough bits in the

1) Explain the role of ports in network communication. 2) Suppose an application opens a UDP port 30,000 and another application opens a TCP port 30,000. What will happen? 3) What features make TCP a reliable transport layer protocol? 4) What is meant by stream delivery in TCP? 5) For a TCP message does the recipient port address have to be the

Suppose that three switches are used to connect 10 hosts (h_0, h_1, ..., h_9). Assume switch s_1 is connected to h_0,h_1,h_2,h_3, and switch s_2 (using interfaces 1 to 5 respectively); s_2 is connected to hosts h_4, h_5, h_6 and switch s_1 and s_3 (interfaces 1 to 5 respectively); and s_3 is connected to hosts h_7,h_8,h_9, and switch s_2 (on

You have the choice of buying two processors: Processor 1 has a clock speed of 4.0 GHz with 32 KiB of L1 cache. Processor 2 has a clock speed of 2.0 GHz with 64 KiB of L1 cache. In order to decide which to buy, you decide to estimate the time each processor will take to process a program with 10,000 RISC instructions. Each RISC instruction takes

As a network administrator in a job with a new company, you attend a meeting in which a manager asks, How many printers do we have in this company? You answer that you dont know the number, but will find out. After the meeting, you discover that no one else really knows the number of printers, which models the company owns, or where they are

A network is a collection of computers and devices connected together via communications devices and transmission media. A network can be internal to an organization or span the world by connecting to the Internet. Many home and business users create a network to facilitate communications, share hardware, share data and information. share