Explain how to adapt the algorithm for reliable multicast over IP multicast to eliminate the hold
back queue – so that a received message that is not a duplicate can be delivered immediately, but
without any ordering guarantees. Hint: use sets of sequence numbers to represent the messages
that have been delivered so far.
What will be an ideal response?
Messages in the hold-back queue serve as markers indicating missing messages. In the original prootocol,
missing messages are retrieved and once a message in the hold-back queue has a sequence number 1 greater
than the last message R-delivered, it too is R-delivered and removed from the queue. However it is not
necessary to hold such messages back. Instead, they can be R-delivered immediately and a record (a set) kept,
for each group, of the sequence numbers of all missing messages. Once a missing message has been retrieved,
it too is immediately R-delivered and its sequence number removed from the set.
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A(n) ________ is composed of software programs known as bots, which run autonomously on a large number of zombie computers
Fill in the blank(s) with correct word
The concept of truth in materials was developed by ____________.
a. Henry Moore b. Pablo Picasso c. Duane Hanson d. Constantin Brancusi
Which special identity group specifically includes any user account (except the Guest) logged into a computer or domain with a valid username and password?
A. Anonymous Logon B. Authenticated Users C. Everyone D. System
What does a data item's data type describe?
What will be an ideal response?