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Let the simpli ed TCPs AIMD algorithm where congestion window size is measured in number of segments, not in bytes. In additive increase, congestion window size increases by one segment in each RTT. In multiplicative reduce, congestion window size decreases by half (if result is not integer, round down to nearest integer). Assume that two TCP connections, C1and C2, share single congested link of speed 30 segments per second. Suppose that both C1 and C2 are in congestion avoidance phase. Connection C1s RTT is 100 ms and connection C2s RTT is 200 ms. Suppose that when data rate in link exceeds links speed, all TCP connections experience data segment loss.
a. If both C1 and C2 at time t0 have congestion window of 10 segments, determine their congestion window sizes after 2200 msec?
b. In long run, will these two connections get same share of the bandwidth of congested link? Describe.
It is significant to know what issues are for encrypting data in the database. Comment on what you think is most significant obstacle to encryption. Describe your position.
You are hired to design an IP addressing scheme for five departments that will give security and access to Internet. Each department requires between 1,500 - 2,000 IP addresses.
When people explain client-server architecture, they are usually referring to a system in which a large server is serving a client on a PC. With X Window, reverse is frequently the case. Explain
What are the areas addressed in CBK? Was policy explicitly listed? If not, where do you feel it is addressed in the CBK?
You have been asked to design a LAN with operation over a distance of about 100m. Compare and contrast twisted pair cable, coaxial cable, fiber-optics.
Write down the analogous steps in dimensioning a computer network?
Your boss has just heard about some nefarious computer activities known as ping sweeps and port scans. He wishesto know more about them and what the impact of these activities might be on company.
When a DNS resolver queries the name server, does case of the domain name affect response?
Is there any protocol which you and Luke can use to avoid defeat? If not, describe why not. If there is protocol that would work, describe it.
Utilize the following information to outline a new network security design. Employee breakdown; 2 partners, 28 accountants, 5 administrative assistants, 2 technology specialists, 1 human resources manager.
Several graphic files were transmitted by a e-mail from the unknown source to suspect in the ongoing investigation. Lead investigator provides you these graphics files and tells you that at least four messages must be embedded in them.
Should Iris have placed CD back at coffee station and forgotten entire thing? Describe why that action would have been ethical or unethical.
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