Consider an e-commerce site that wants to keep a purchase record for
each of its customers. Describe how this can be done with cookies?
The Site returns a Cookie number when the user first visits the site. This number
is stored on the user's host and i
The project on Wireshark analysis that we have done using three different
machines on three different servers such as Windows7, Linux ubuntu and Mac
The whole process we have divided in to three different phases which are to
What is the difference between a host and an end system? List several
different types of end systems. Is a Web server an end system?
In networking, the computers that are connected to a computer network are
referred to as end systems,
Host and end syst
Suppose two TCP connections are present over some bottleneck link
of rate R bps. Both connections have a huge file to send (in the same
direction over the bottleneck link). The transmissions of the files start
at the same time. What transmission rate w
R1. Lets review some of the terminology used in this textbook. Recall
that the name of a transport-layer packet is segment and that the
name of a link-layer packet is frame. What is the name of a networklayer packet? Recall that both routers and link-laye
R3.) What are some of the possible services that a link-layer protocol
can offer to the network layer? Which of these link-layer services have
corresponding services in IP? In TCP?
Framing and link access.
Suppose there is exactly one packet switch between a sending host and
a receiving host. The transmission rates between the sending host and
the switch and between the switch and the receiving host are R1 and
R2, respectively. Assuming that the switch
R1. Reconstruct Table 7.1 for when Victor Video is watching a 4 Mbps
video, Facebook Frank is looking at a new 100 Kbyte image every 20
seconds, and Martha Music is listening to 200 kbps audio stream?
Streaming stored audio/video: pause/resume, re-positio
In Torrents, suppose Alice provides chunks to Bob throughout a 30secondinterval. Will Bob necessarily return the favor and provide
chunks to Alice in this same interval? Why or why not?
Even if Alice provides chunks to Bob throughout 30 second interval
R12. Do routers have IP addresses? If so, how many?
Yes. They have one address for each interface.
R15. Suppose there are three routers between a source host and a
destination host. Ignoring fragmentation, an IP datagram sent from
the source host to the d
R1. What does it mean for a wireless network to be operating in
infrastructure mode? If the network is not in infrastructure mode,
what mode of operation is it in, and what is the difference between
that mode of operation and infrastructure mode?
Suppose the network layer provides the following service. The
network layer in the source host accepts a segment of maximum size
1,200 bytes and a destination host address from the transport layer.
The network layer then guarantees to deliver the segmen
What is the difference between network architecture and application
Network Architecture would be the design of a communication network, from
the physics of communication channels and the topology of their layout,
through the protocols tha
R1. What are the differences between message confidentiality and
message integrity? Can you have confidentiality without integrity?
Can you have integrity without confidentiality? Justify your answer
Confidentiality is the property that the original plain