21) The manager of the accounting department has decided not to return from maternity leave. Her replacement
has been hired from outside the organization. Which of
the following is the best way to ensure that her replacement
has the same access to the network she had?
A) change the password on the old manager's account and let
the new manager use the same account.
B) Disable the old managers account create a new
account with the same settings as the old account.
c) Delete the old account create a new account
D) Rename the account to the new managers
username.​

Atype of researcher who uses computers to make sense of complex digital data

The idea that, for each pair of devices v and w, there’s a strict dichotomy between being “in range” or “out of range” is a simplified abstraction. more accurately, there’s a power decay function f (·) that specifies, for a pair of devices at distance δ, the signal strength f(δ) that they’ll be able to achieve on their wireless connection. (we’ll assume that f (δ) decreases with increasing δ.) we might want to build this into our notion of back-up sets as follows: among the k devices in the back-up set of v, there should be at least one that can be reached with very high signal strength, at least one other that can be reached with moderately high signal strength, and so forth. more concretely, we have values p1 ≥ p2 ≥ . . ≥ pk, so that if the back-up set for v consists of devices at distances d1≤d2≤≤dk,thenweshouldhavef(dj)≥pj foreachj. give an algorithm that determines whether it is possible to choose a back-up set for each device subject to this more detailed condition, still requiring that no device should appear in the back-up set of more than b other devices. again, the algorithm should output the back-up sets themselves, provided they can be found.\

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