Serial Line Internet Protocol

A traditional traffic model for circuit switched data as well as packet data is the Poisson process in which the number of incoming packets per time is according to Poisson distribution. It is one of the most widely used and oldest traffic models. In this model the length of each packet is based on exponential distribution and the number of simultaneously ongoing packets is according to Erlang distribution [16]. The Poisson process is characterized as a renewal process. In a Poisson process the…

The amount of data that must be transmitted through the Internet increases exponential, new applications such as RealAudio, Real Video, Internet Phone software and videoconferencing systems need a lot more bandwidth than the applications that were used in the early years of the Internet, this means that without any bandwidth control, the quality of these real-time streams depends on the bandwidth that is just available…

In the paper, [1], the author introduced two kinds of topology attacks focus on the architecture of SDN and emphasized the weakness of the host tracking service and the link discovery service. And then, the paper provides the security extension, called Topoguard, for the Floodlight v0.9 controller. A. Two topology attacks The first attack as we mentioned, Host Location Hijacking Attack, is to send a fake request that the target host migrates to a new location trying to intercept packets and…

QUES 1. A router has the following CIDR entries in the routing table: Address/Mask Next Hop 135.46.56.0/22 Interface 0 135.46.60.0/22 Interface 1 192.53.40.0/23 Router 1 Default Router 2 For each of the following IP addresses, what does the router do if a packet with that address arrives? 1. 135.46.63.10 2. 135.46.57.14 3. 135.46.52.2 4. 192.53.40.7 5. 192.53.56.7 g entirely with bytes is much simpler than working with individual bits. Answers: 1. 135.46.63.10 Using the first 22 bits of it as…

Inspite of its conceptual elegance, RPC (Remote Procedure Call) have a few problems. Discuss any 3 of those in brief. Often times it is unclear who the client is and who the server is in certain situations, in these types of situations RPC would not be suitable. RPC also makes unexpected messages hard or impossible to send if the receiver of the message is not expecting the message. Also RPC does not allow multi-threaded servers even when one would be appropriate(Tanenbaum & Renesse, n.d.).…

Unit Standard 26227 (ER 4.1, 4.2, 4.3) Outcome 4: Customize the LAN’s user interface. a) Map network drive for user A) First we open active directory users and computer B)then open users and create new user C)then open up new user’s properties which we created D) then go to security and allow full control E) after that open advance option and click on check names and select your name F) after that select the new user which is created G) then click on “OK” and select click…

The SIP protocol requires the packets to be received in a timely manner. If the routers are routing packets and taking longer than normal it could completely drop the call as the protocol has timed out. This is also the same issue whit malfunctioning SIP protocol timers. The timers are in place to end calls if the connection has been disrupted before the end of call packet has been sent…

from being zero to 255. For example, 1.160.10.240 could be an IP address. Although IP address can be static or dynamic. A static IP address stays the same and it is a permanent Internet address. On the other hand, a dynamic IP address is a temporary address that is assigned each time a computer or device accesses the Internet, and DNS is used to it make easy to read or remember hostnames like www.it200class.com ¥ 1.2 Server and Client is a network architecture in which each computer or process…

The Internet functions as the __________, and the Web (WWW) is __________ that runs on the Internet. a) transport mechanism; an application b) information architecture; a browser c); protocol; a search engine d) hardware; software 39. Which of the following is not a characteristic of intranets? a) Portals (gateways) that provide easy and inexpensive browsing and search capabilities. b) Company-owned networks that use IP technology to securely share part of a business’s information or…

amount of addressesarouse from the explosion in the usage of addresses which included: a) An increase in the internet population by approximately 2 billion users in 2011. b) Increase in the amount of mobile users including smart phones, PDAs, tablets, notepads etc. c) An increase in consumer devices such as E-book readers, TVs and cable set-top boxes, cameras that also use the internet. d) Transportation, which saw 1.1 billion automobiles in 2010 These factors has led to a rapid decline in…