Pid of init process

A relational schema for a train reservation database is given below Passenger (pid, pname, age) Re servation (pid, cass, tid) Table : Passenger pid ‘pname Age 0 ‘Sachin’ 65 1 ‘Rahul’ 66 2 ‘Sourav’ 67 3 ‘Anil’ 69 Table : Reservation pid class tid 0 ‘AC’ 8200 1 ‘AC’ 8201 2 ‘SC’ 8201 5 ‘AC’ 8203 1 'SC' 8204 3 'AC' 8202 What pids are returned by the following SQL query for the above instance of the tables? SELECT pid FROM Reservation WHERE class 'AC ' AND EXISTS (SELECT * FROM Passenger WHERE age > 65 AND Passenger.pid = Reservation.pid)

A

1, 0

B

1, 2

C

1, 3

D

1, 5

Suppliers(Sid: integer, sname:string, city:string, street:string) Parts(pid:integer, pname:string, color:string) Catalog(sid:integer, pid:integer, cost:real) Consider the following relational query on the above database: SELECT S.sname FROM Suppliers S WHERE S.sid NOT IN (SELECT C.sid FROM Catalog C WHERE C.pid NOT IN (SELECT P.pid FROM Parts P WHERE P.color < > ‘blue’)) Assume that relations corresponding to the above schema are not empty. Which of the following is the correct interpretation of the above query?

A

Find the names of all suppliers who have supplied a non-blue part

B

Find the names of all suppliers who have not supplied a non-blue part

C

Find the names of all suppliers who have supplied only blue parts

D

Find the names of all suppliers who have not supplied only blue parts

What is the output of the following code:

class Parent:
 def init(self):
 print('Parent constructor')
class Child(Parent):
 def init(self):
 print('Child constructor')
obj = Child()

A

Child constructor

B

Parent constructor

C

An error will occur

D

Child Parent

In a certain code language, “all are race goal” is written as “eg mig la di” “soul of are shine” is written as “mig xz cd pid” “shine always race head” is written as “pid rg eg mk” What is the code for ‘shine’ in the given code language?

A

eg

B

pid

C

mig

D

mk

The process id of init process is:

A

-1

B

0

C

1

D

2

What is the PID of the process who takes the parentage of the process run with nohup command?

A

0

B

1

C

2

D

Infinite

What is the PID of the first process that is set up when the system is booted?

A

1

B

0

C

any

D

2

When fork() is invoked, the child process created gets a new PID.

A

True

B

False

A process is controlled by PID controller. The sensor has high, measurement noise. How can the effect be reduced?

A

By use of bandwidth limited derivative term

B

By use of proportional and derivative terms in the forward path

C

By use of high proportional band

D

By use of low integral gain

When an applet begins, which of the following sequence methods is CORRECT? 1) start() 2) paint() 3) init()

A

2, 3, 1

B

3, 1, 2

C

1, 3, 2

D

3, 2, 1

Pid of init process

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