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16EVE/ELD/EIE24

USN

Time:

3 hrs.

Max. Marks:

Note: Answer FIVEfull questions, choosing ONEfull question from each module .. Module-l List the important features that are required to be supported Explain the three different types of resource analysis.

a. b.

by a RTOS.

OR

real time and soft isochronal

a. b.

Module-2 With necessary assumptions, explain the two cases ofRMLUB. Explain the concept of real time scheduler.

explain the functions

lo

b.

With diagrams explain utilities. With state transition diagram,

of the various service states.

ib

3

hard real time, isochronal

a.

(08 Marks)

(08 Marks)

ik

2

80

g.

1

co m

Second Semester M. Tech. Degree Examination, June/July 2017 Real Time Operating System

real time

(08 Marks) (08 Marks)

(10 Marks) (06 Marks)

OR

a. b.

Explain the following: Explain the worst-case

6

a. b.

Explain the following: i) blocking ii) deadlock iii) live lock, (08 Marks) Explain the ways of handling missed deadlines and quality of service (QoS) for a real time system. (08 Marks)

7

a. b.

feasibility

w

~o

Z

9

~o

(08 Marks) (98 Marks)

(08 Marks)

OR

Module-4 Explain with a figure any three firm ware components. Mention the levels of single step debugging.

a. b.

OR Differentiate between hardware and software breakpoints. Explain test access ports and trace ports.

a. b.

Module-S ii) thread iii) semaphore. i) process Explain the following: Write a program to create child process and print their process id.

a, b.

OR Write short notes on following: i) Message queue ii) Shared buffer Write a program to inter task communication using multiple threads.

w

8

testing

(08 Marks)

.p e

di a

Module-3 i) Shared memory ii) Flash file systems. execution time of a service.

(10 Marks) (06 Marks)

w

5

a.

w

b.

Discuss two algorithm for the determination of necessary and sufficient with RM policy. Explain the real time operating system preemptive fixed priority policy.

4

(08 Marks) (08 Marks)

(08 Marks) (08 Marks)

0..

E

10

iii) IPe

(08 Marks) (08 Marks)

*****

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