How could email be sent to a list of 100 recipients using PGP or a similar scheme? Suggest a
scheme that is simpler and faster when the list is used frequently.

What will be an ideal response?


The idea of this exercise is to contrast the need for PGP to encrypt the session key n times (once in the public
key of each user) with a scheme where the members of a group would share a single session key. The
management and renewal of the shared key can be more easily achieved if the mailing list members are
represented as members of a multicast group

Computer Science & Information Technology

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Under Windows XP, __________ mode processes have access to the entire system memory and all processor instructions and can bypass Windows security to access objects.

a. user b. kernel c. either A or B d. neither A nor B

Computer Science & Information Technology

The ‘Transfer’ transactions T and U are defined as:

T: a.withdraw(4); b.deposit(4);

U: c.withdraw(3); b.deposit(3);

Suppose that they are structured as pairs of nested transactions:


Explain why the use of these nested transactions generally permits a larger number of serially equivalent interleavings than non-nested ones.

Computer Science & Information Technology

To create text, click the Type tool on the ____________________, then start typing.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

How do you determine when to create a mobile site?

What will be an ideal response?

Computer Science & Information Technology