The Mapper implementation processes one line at a time via _________ method.

The Mapper implementation processes one line at a time via . . . . . . . . method. TOPIC 5.2 MAPREDUCE

A

map

B

reduce

C

mapper

D

reducer

The Mapper implementation processes one line at a time via . . . . . . . . method.

A

map

B

reduce

C

mapper

D

reducer

If farmers loan are waived in India, how will it affect the aggregate demand in the economy? 1. Private consumption impact via increase in private sector net wealth 2. Public sector impact via changes in government expenditure/taxes 3. Crowding-out impact via higher borrowings by State Governments 4. Crowding-in impact via higher credit availability as bank NPAs fall Select the correct answer using the code given below:

A

1, 2 and 3 only

B

1, 2, 3 and 4

C

3 and 4 only

D

1 and 2 only

The delivery function of a report management system allows reports to be delivered via e-mail, via the Web, via XML Web services, via hand delivery and other delivery means.

A

True

B

False

Consider four processes P, Q, R, and S scheduled on a CPU as per round-robin algorithm with a time quantum of 4 units. The processes arrive in the order P, Q, R, S, all at time t = 0. There is exactly one context switch from S to Q, exactly one context switch from R to Q, and exactly two context switches from Q to R. There is no context switch from S to P. Switching to a ready process after the termination of another process is also considered a context switch. Which one of the following is NOT possible as CPU burst time (in time units) of these processes?

A

P = 4, Q = 10, R = 6, S = 2

B

P = 2, Q = 9, R = 5, S = 1

C

P = 4, Q = 12, R = 5, S = 4

D

P = 3, Q = 7, R = 7, S = 3

There are 10 different processes running on a workstation. Idle processes are waiting for an input event in the input queue. Busy processes are scheduled with the Round-Robin time sharing method. Which out of the following quantum times is the best value for small response times, if the processes have a short runtime, e.g. less than 10ms?

A

tQ = 15ms

B

tQ = 40ms

C

tQ = 45ms

D

tQ = 50ms

Mapper implementations are passed the JobConf for the job via the ________ method.

A

JobConfigure.configure

B

JobConfigurable.configure

C

JobConfigurable.configurable

D

None of the mentioned

Mapper implementations are passed the JobConf for the job via the . . . . . . . . method.

A

JobConfigure.configure

B

JobConfigurable.configure

C

JobConfigurable.configurable

D

None of the mentioned

In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the suggested courses of action logically follow (s) for pursuing. Statement: With one year to go for 2019 parliamentary elections, Prime Minister Narendra Modi has stepped in to ensure results can be seen on the ground. The Centre has asked states to focus on impactful and public-private-partnership based smart city projects, which would show results over the next one year and have a review mechanism in place. Ministry of housing and urban affairs, the nodal ministry for Smart Cities Mission has identified 261 impactful ventures worth Rs. 31,000 crore and PPP projects worth Rs. 32,000 crore for the states to work on. Courses of Action: I. The move follows directives from the Prime Minister. During a review of Smart Cities mission last week, PM Modi had emphasized on early implementation of projects and suggested that the chief secretaries of all states should review the progress of the implementation. II. These identified projects account for an investment of Rs. 31,112 crore. The states have also been asked to work on 370 PPP projects that involve an investment of Rs. 32,410 crore The impactful projects identified range from building 40 outdoor fitness centres in New Delhi Municipal Council area at a cost of Rs. 1.31 crore to redevelopment of 340 acre area in Bhopal at a cost of Rs. 3,000 crore. III. Secretary (housing and urban affairs) D. S. Mishra has written to chief secretaries of states and asked them to focus on the belated implementation of smart city projects that have a visible and transformative impact in the lives of citizens in identified smart cities.

A

Both I and III follow

B

Neither II nor III follows

C

None follows

D

All except III follow

E

All I, II and III follow

A certain computation generates two arrays a and b such that a[i]=f(i) for 0 ≤ i < n and b[i] = g (a[i] ) for 0 ≤ i < n. Suppose this computation is decomposed into two concurrent processes X and Y such that X computes the array a and Y computes the array b. The processes employ two binary semaphores R and S, both initialized to zero. The array a is shared by the two processes. The structures of the processes are shown below. Process X: private i; for (i=0; i

A

ExitX(R, S) {

P(R);

V(S);

}

EntryY(R, S) {

P(S);

V(R);

}

B

ExitX(R, S) {

V(R);

V(S);

}

EntryY(R, S) {

P(R);

P(S);

}

C

ExitX(R, S) {

P(S);

V(R);

}

EntryY(R, S) {

V(S);

P(R);

}

D

ExitX(R, S) {

V(R);

P(S);

}

EntryY(R, S) {

V(S);

P(R);

}

The Mapper implementation processes one line at a time via _________ method.

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