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Originally Linux/UNIX systems had one all-powerful user called root that managed systems. Discuss the risks of having a single root user and how more limited management abilities can be given to others users on Linux/UNIX systems. Include a sample generic policy for a limited user from which a configuration could be written.
Assume nodes A and Bare on the same 10 Mbps Ethernet bus, and the propagation delay between the two nodes is 325 bit times. The answer is no, if B 's signal reaches A before bit time t = 512 + 64 bits. In the worst case, when does B's signal reach A?
Assume it wishes to create four subnets from this block, with each block having same number of IP addresses. Determine the prefixes (of form a.b.c.d/x) for four subnets?
List the networking and commination devices required, including the IP addresses, product numbers, the cost of each and the approximate total cost.
Application Architecture. You have been tasked with building a payroll program for a large organization with offices spread across the United States.
Determine the minimum required bandwidth for the baseband transmission of an 8-level PAM pulse sequence having a data rate, Rb, of 9600 bps.
If IPSec gives security at network layer, why is it that security mechanisms are still require at layers above IP?
Which of data hazards can be prevented if forwarding is added to datapath? For each such hazards, list register number and two instructions involved.
The main memory of a computer is organized as 128 blocks, with a block size of 16 words. The cache has eight block frames. Illustrate direct mapping and address bits that recognize the tag field, the block number, and the word number.
Write down some popular reconnaissance tools?
In context of telecommunications standards and policy, create 3-5 page white paper which explains current standards and policies which are suitable to MCG's work with Star Clothing.
While working in an economy, it has a separate identity but cannot operate insolently.
Given a computer that can test 2^40 keys each second. What is the expected time to find a key by exhaustive search given a key space, say 2^88. How do you go about figuring this out? Is there a formula or standard equation that is used?
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