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Question 42446

posted 11 months ago

a) Show how stored media can be streamed over the internet using the RTSP Client-server application layer protocol
b) Compare and contrast the use of TCP and UDP as transport laver protocols for streaming applications

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Question 42445

posted 11 months ago

a) Identify the key functions of the network layer. Justify your choices
b) Explain the operation of the ARP: Address Resolution Protocol.
c) Compare and contrast Circuit and Packet switching.

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Question 42444

posted 11 months ago

a) Sketch a diagram to show the TCP/IP protocol stack
b) Explain the role of each layer in your diagram.
c) Explain why TCP/IP rather than the OSI 7-layer model has become the dominant network protocol model.

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Question 39004

posted 1 years ago

Describe how the above forwarding table determines the appropriate link interface for datagrams with destination addresses: SHOW & EXPLAIN YOUR WORK.

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Question 39002

posted 1 years ago

2. [20 points]Consider a VC network with a 2-bit field for the VC number. Suppose that the network wants to set up a virtual circuit over four links: link A, link B, link C and link D.Suppose that each of these lin ks is currently carrying two other virtual circuits, and theVC numbers of these other VCs are as follows:
In answering the following questions, keep in mind that each of the existing VCs may only betraversing one of the four links.
a. If each VC is required to use the same VC number on all links along its path, whatVC number could be assigned to the new VC?
b. If each VC is permitted to have different VC numbers in the different links along its path (so the forwarding tables must perform VC number translation), how many different combinations of four VC numbers (one for each of the four links)could be used?

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Question 39003

posted 1 years ago

a. [8 points]What is your network address? SHOW YOUR WORK
What is the network broadcast address?
s]What is maximum number of hosts in this network?

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Question 39001

posted 1 years ago

1. [10 points]lt has been said that when IPV6 tunnels through IPV4 routers, IPV6 treats theIPV4 tunnels as link-layer protocols. Do you agree with this statement? Why or why not?

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Question 37012

posted 1 years ago

(18 points) Consider you have a set of 8 inexpensive disks. You want to build a RAID system out of it. You have the option of building a RAID 0, RAID 1, or RAID 5. For each of the following criteria, which one of the three configuration provides the best performance? Which provides the worst?
a. Reliability
b. Storage capacity
c. Process throughput, if an overwhelming of operations on the disk are processes request short writing operations only (i.e. writing a sector or two for each request)
There may be cases where you can only identify which configuration give you the best or worst performance, but not both. It is ok to state that you cannot determine that without further explanation. However, if you pick one configuration to be the best/worst you do need to justify your choice.

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Question 37013

posted 1 years ago

3. Answer the following questions:
a. Describe when is interrupts needed during demand paging.
b. Name two consequences on the limitation of SSD drives (such that a page cannot be overwritten until a larger block containing the pages is erased).

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Question 37011

posted 1 years ago

1. (20 points) Consider demand paging. You are given the following reference string, page replacement policy and the number of frames available. Calculate the number of page faults in each case.
To answer the question, write down the # of page fault, and also copy the referencestring and circle all references that causes a page fault.
Notice that we assume no pages exists in the frames in the beginning, thus, the initial pages being loaded into the frames should count as page faults. Another way to look at it is to assume page faults = number of times a page need to be loaded into main memory (assume nothing is there in the first place).

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