o'

L L*,t't

For More Question Papers Visit s - www.pediawikiblog.com USN

s

t Sem est

LT#:i'

-fi"?:lil;"s;: l"'

Time: 3 hrs.

u

rv 20 t 6

#;.,J

g. co m

Fir

Max. Marks: IOB

Note: Answer any FIVE full questions. Discuss the objectives and evolutions of operating systems. List out and explain the major functions of operating system. Explain the security issues in design of operating system.

o

2a.

Differentiate traditional UNIX Kernel with modern UNIX kernel with a neat sketch.

o o d !

;

lo

=

I a. b. c.

(,

C)

=(n ll -"o c00 .S c\ (€s

Y(.)

0(.)= E()

c.

Give description about the components'of linux kernel along with a diagram. (08 Marks)

a. b' : d'

Distinguish between thread and process from a point of view of process management.

4a.

boi (c(s

o. b1 tro. ()i ?.Y 6= 3() 7)tE tio

a. b. c'

Explain popular classes of real time scheduling algorithm. (08 Marks) Explain LINUX scheduling classes and major modifications implemented in UNIX SVR4.

a. b.

Explain characteristics and objectives of embedded operating system. (08 Marks) Explain with layered structure of eCOS (embedded configurable operating system) the objectives of eCOS kernel. (08 Marks) Explain eCOS schedulers. (04 Marks)

Discuss how do you compare windows/Linux scheduling.

(08 Marks) (04 Marks)

c.

&, ,b.

c.

Discuss the key objectives of computer security. (06 Marks) Discuss about intruders and classes of intruders. (06 Marks) Describe four kinds of threat consequences and list the kinds of attacks that result in each consequence. (08 Marks)

a. b.

Write a short notes on: Virus, worms and Bots. Windows NT/2000 organaation.

w

?E >.,* ootro0

Explain characteristics and approach of real-time operating systems.

w

3ar 'E -r 6E a-

(08 Marks) (12 Marks)

b.

.p ed

>e

-(l ss) -od

(06 Marks)

List out and explain any two general approaches for multiprocessing thread scheduling.

ia

oq)

(no

(06 Marks)

What are the key benefits of thread derive from the performance implication? 1o+ nnarts; Highlight on the basic thread operation associated with a change in thread state. (04 Marks) Explain categorizatronof thread implementation with advantages and disadvantages.

Ee (u=

a diagram the process states.

ib

o-;,:4 (g (J

(08 Marks) (04 Marks)

what is process? Explain with

ik

EP bo*

(05 Marks)

b.

w

Lr

(08 Marks) (07 Marks)

(D=

o.

Ei

w

=() o tr<

-

0.)

z P

(! F

o. tr

C-.tr

(15 Marks) (05 Marks) '*

I {< it *

For More Question Papers Visit - www.pediawikiblog.com