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After reading RFC 2821, answer the following questions: 1.What would the command sequence in a normal SMTP session be? Use C: to preface a command issued by the client and S: to preface a command issued by the server. 2.What was the primary purpose of SMTP? Has it's purpose been modified? If so, how? 3.What security exists for SMTP? Are there other RFC's which document how SMTP can be secured? Describe what would need to be done in order to secure data in an SMTP session. Is this feasible or generally implemented?
Sometimes a slight change in the problem can significantly modify form of its solution. For instance, determine simple algorithm for solving following problem and categorize it using big-theta notation.
Write a for loop that produces the following output
Suppose that d's access control list gives p full (read, write, append, and execute) rights to d. In which ring(s) should p execute for following to occur?
There are k types of postcards, each with limited amount. Let there be ai copies of i-th postcard. How many ways are there to send these postcards to n friends?
One option used to speed up disk drives is to add a cache that hold either recently accessed blocks, blocks waiting to be written to the disk, or that is used to "prefetch" blocks for a file. If the disk speed is approximately 3ms for a block and the..
What are the differences between a struct and a class?
What are some factors or requirements when designing an Active Directory Infrastructure. How do you gather the requirements for the design? Please explain in approximately in two paragraphs.
Logic is a key factor in laying out the processes for programming a game/application/website. Explain why logic is an important part of OOP.
Write an instruction sequence to add the 3-byte numbers stored in memory locations 0x1 1-0x13 and 0x14-0x16 and save the sum in memory locations 0x20-0x22
Derive the simplest product-of-sums expression for the function f(x1,x2,x3,x4)= (x1'+x3'+x4')(x2'+x3'+x4)(x1+x2'+x3') HINT: use consensus property.
Consider the following recurrence relation: T (1) = 6, and for n > 1, T (n) = 1 + 2T ([n/2]) Note. [x] is the the floor function. It rounds x down to the nearest integer.
How will you run a process in background? How will you bring that into foreground and how will you kill that process?
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