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Dmitry [639]
3 years ago
13

Suppose that a client performs an intermixed sequence of (queue) enqueue and dequeue operations. The enqueue operations put the

integers 0 through 9 in order onto the queue; the dequeue operations print out the return value. Which of the following sequence(s) could not occur? a. 0 1 2 3 4 5 6 7 8 9 b. 4 6 8 7 5 3 2 9 0 1c. 2 5 6 7 4 8 9 3 1 0
d. 4 3 2 1 0 5 6 7 8 9
Computers and Technology
1 answer:
earnstyle [38]3 years ago
8 0

Answer:

b, c and d can't occur.

Explanation:

Order is preserved in queue. Option A is order preserving so only it will occur.

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Explain how chord works. To increasing the fault tolerance in chord, each node maintains a successor list (finger table) instead
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Answer:

Chord is a set of rules for a peer-to-peer distributed hash table it collects key-value sets by allotting keys to several computers (known as "nodes"); a node will collect the values for all the keys for which that is reliable. Chord defines how keys are allocated to the nodes, and how a node can determine the value for a distributed key by first locating the node liable for such key.

Explanation:

A chord is a peer-to-peer lookup service. It Resolves the difficulty of establishing a data item in a combination of shared nodes, considering various node arrivals and removals The most crucial operation in most peer-to-peer method is the efficient position of data objects.

It is able of supporting only one operation i.e. given a key, it maps the key on a link.

Algorithm:

Algorithm shows working of the chord:

// x is a node used to find successor of id

x.find_successor(id)

if (id (x; successor])

return successor;

else

// query is being delivered around the circle

entrance successor.find_successor(id);

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