Systems Architecture
7th Edition
ISBN: 9781305080195
Author: Stephen D. Burd
Publisher: Cengage Learning
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- Question 2:
- What best describe the following :
- A collection of
computer networks interconnected together__________________ - A network in which small chunks of data are passed through the network from node to node, and at each node the entire data chunk is received, stored briefly, and then transmitted to the next node IS A PACKET SWITCHING NEWT WORK
- This protocol model was developed by the International Organization for Standardization as a model for a computer protocol architecture and as a framework for developing protocol standards. ________________________
- A device is used to connect different types of networks. __________________________
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- What are the advantages and disadvantages of connectionless protocols in comparison to connection-based protocols?arrow_forward2. Subnetting a subnet or using variable-length subnet mask (VLSM) was designed to maximize addressing efficiency. You are required to subnet, based on the number of hosts, including router interface and WAN interface and WAN connections for the following scenario: •Toronto: 60 host addresses •Montreal: 28 host addresses •Ottawa: 12 host addresses •Vancouver: 12 host addresses •WAN1: 2 host addresses •WAN2: 2 host addresses •WAN3: 2 host addresses Using the given address block of 192.168.15.0/24, you can design an address scheme for the network to meet its requirements and save potential addresses. The data for Toronto is given to help you to fill the remaining all other columns. Name Toronto Montreal Ottawa Vancouver WAN1 WAN2 WAN3 Required no of addresses 60 28 12 12 ~~ 2 2 2 Subnet Address 192.168.15.0 Address Range .1 - .62 Broadcast Address .63 Network/ Prefix 192.168.15.0 /26 19arrow_forwardThe benefits and drawbacks of connectionless protocols must be weighed against those of connection-based protocols.arrow_forward
- 4. The original HTTP protocol used TCP/IP as the underlying protocol. For each page, graphic, or applet, a separate TCP connection was constructed, used, and terminated. This caused several problems: one referred to as the elephant and mice problem and two aspects of connection overhead. Describe both problems. Why were separate connections used? Would UDP rather than TCP be a good alternative? What solution would you propose to these problems to improve HTTP performance?arrow_forwardDiscrete Mathematic Question: Pretend we are defining a new class of networks: 1 byte for network IDs and 1 byte for hostID. The definition of class A is: networkdID is : 0xxx-xxxx and the one byte (8 bits) hostID cannot contain all 0s and 1s. The definition of class B is: networkdID is : 10xx-xxxx and the one byte (8 bits) hostID cannot contain all 0s and 1s The definition of class C is: networkdID is : 110x-xxxx and the one byte (8 bits) hostID cannot contain all 0s and 1s. How many total IP addresses can we have with the above definition?arrow_forwardDiscrete Structures or Discrete Mathematicsarrow_forward
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- Assume a client is connected to the server and has already received an HTML webpage. It reads the webpage, and it now needs to get 3 new files, File A is 5 MB file B is 1 MB and file C is 1 KB. The client requests the files in the order A B C. The link has an RTT (round trip time) of 0.5 seconds and a bandwidth of 8 Mb/s(Megabits per second) (or 1 Megabyte per second). The client can reuse the open connection if the protocol allows it to. For all parts of this problem ignore header sizes, and start the timer when the client sends How long does it take to get file C under HTTP 0? How long does it take to get file C under HTTP 1 (assume the browser does not support pipeling)? How long does it take to get file C under HTTP 2 assuming a frame size of 1 KB and no server push? What event would make HTTP 3 faster than HTTP 2 for this use case (ignore TLS)?arrow_forwardIs it even somewhat possible for two distinct network interfaces to have the same MAC address? Is there a purpose or meaning to the activity that's being conducted right now? Is it possible to use the same Internet Protocol address on two separate network interfaces at the same time, and if so, is it realistic to do so? Is there a purpose or meaning to the activity that's being conducted right now?arrow_forward
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