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State the primary advantage of a deterministic local area network protocol over a nondeterministic local area network protocol.Give a real-life example of this advantage.
Explain ways that networking has changed society in the past 10 years. Do you feel that computer networking has impacted your life?
What is the advantage of using twisted pair wiring? Coaxial cable? Fiber-optic?
Prescribe a security strategy for a corporate WAN. Be sure to include methods to combat both technical and nontechnical attacks. Consider a fictional company with offices in Toronto, Houston, and Los
Discuss why wireless networks are more susceptible to security problems and how businesses can protect them.
Alice has selected the public key (n = 33; e = 3). Using this key, Bob sends plaintext X to Alice which encrypts as ciphertext 10. What is the plaintext X?
We know that doing a signature with RSA alone on a long message would be too slow. Suppose we could do division quickly. Would it be reasonable to compute an RSA signature on a long message by ?rst co
In the Diffie-Helman protocol, the common modulus is chosen as n = 19 and the generator g is chosen to be 2. Alice and Bob choose the numbers 6 and 10 privately. What will be the public values they tr
Alice sends to KDC { Alice;Bob;E_KDC(R) }. That is, her identity, Bob's identity and also a random session key encrypted with the KDC's public key (of which it has a trusted copy).
When people describe 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, the reverse is frequently the case. Explain
You have been hired to help troubleshoot a network. Users in this customer site have being experiencing intermittent problems. A few times a day, some users lose network connections to the server or t
You are a networking professional who works in a college computer lab the computers run only the tcp/ip protocol on an ethernet network and all the computers use 3Com NIC,s many begining computer scie
XYZ is multi-billion company having 24 departments and each department consisting no more than 750 hosts. Design the IP network based on the requirements stated above and answer the following:
Decrypt the cipher-text c = 12 using the secret key sk = (p, q) = (11, 13), where the corresponding public key is pk = (N, e) = (143, 13).
Think about how the highway network is dimensioned (e.g., how the number of lanes in highways leading into and out of a big city is determined).
HQ needs six static routes to the six remote Lans in the topology. Use the next-hop-ip argument in the static route configuration. HQ also needs a default route. Use the exit-interface argument in the
What is the maximum value of L such that TCP sequence numbers are not exhausted? Recall that the TCP sequence number field has 4 bytes.
If you have a class B network and want to divide it into subnets, each with 126 hosts, which subnet mask should you use? How many networks will be available? What are the four addresses (broadcast and
Let's figure out what kind of networking equipment an organization would need to buy. You can make assumptions on size and budget. What do we need to purchase? Why do we need to purchase it?
Using blocks of 4 encrypt the message I AM AN MSC STUDENT MAJORING IN SECURITY using the public key above.
A company wants to connect two offices, located in Memphis, Tennessee, and Laramie, Wyoming. The offices need to transfer data at 512 kbps
Show the timing of this instruction sequence by filling the above table with normal forwarding hardware but assuming a register read and write in same clock cycle 'forwards' through the register.
What kind of transmission media would you recommend for each different building and department of the medical instrument company and why?
Consider a router that interconnects three subnets subnet 1 subnet 2 and subnet 3 suppose all fo the interfaces in each of three subnets are required to have prefix 223.1.17/24.
A certain computer on your Fast Ethernet network seems to be acting sluggish. After ensuring the 10/100 Mbps NIC is not malfunctioning, you decide to find out whether it's configured to transfer data