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$405.$ For proper synchronization in distributed systems $\_\_\_\_\_\_\_\_\_\_\_\_$

Question $1$Answer

a$.$

prevention from the deadlock & starvation is must

b$.$

none of the mentioned

c$.$

prevention from the starvation is must

d$.$

prevention from the deadlock is must

Question $2$

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$409.$ In distributed systems, election algorithms assumes that $\_\_\_\_\_\_\_\_\_\_\_\_$

Question $2$Answer

a$.$

priority of the processes is not required

b$.$

there is no priority number associated with any process

c$.$

none of the mentioned

d$.$

a unique priority number is associated with each active process in system

Question $3$

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$2001.$Resources and clients transparency that allows movement within a system is called$\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

Question $3$Answer

a$.$

Mobility transparency

b$.$

Performance transparency

c$.$

Concurrency transparency

d$.$

Replication transparency

Question $4$

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$402.$ If timestamps of two events are same, then the events are $\_\_\_\_\_\_\_\_\_\_\_\_$

Question $4$Answer

a$.$

non$-$concurrent

b$.$

non$-$monotonic

c$.$

concurrent

d$.$

monotonic

Question $5$

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$13.$ Domain Name System $($DNS$)$ resolvers use Paxos and invalidation messages to maintain the consistency of cached records

Question $5$Answer

a$.$

FALSE

b$.$

TRUE

Question $6$

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$401.$ In distributed systems, a logical clock is associated with $\_\_\_\_\_\_\_\_\_\_\_\_\_\_$

Question $6$Answer

a$.$

each instruction

b$.$

none of the mentioned

c$.$

each register

d$.$

each process

Question $7$

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$2006.$What is the characteristics of atomicity $?$

Question $7$Answer

a$.$

When responses are received from all processes, then process can enter its Critical Section

b$.$

All operations associated are executed to completion or none are performed

c$.$

Use communication links

d$.$

One processor as coordinator which handles all requests

Question $8$

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$1.$ Which of the following promotes interoperability between cells?

Question $8$Answer

a$.$

Interface

b$.$

GDA

c$.$

CDS

d$.$

GDS

Question $9$

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$311.$ Which of the following are forms of malicious attack?

Question $9$Answer

a$.$

Wiping of information

b$.$

Modification of data

c$.$

All of the mentioned

d$.$

Theft of information

Question $10$

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$2003.$If one site fails in distributed system, $\_\_\_\_\_\_\_\_\_\_\_$

Question $10$Answer

a$.$

none of the mentioned

b$.$

all the sites will stop working

c$.$

directly connected sites will stop working

d$.$

the remaining sites can continue operating

Question $11$

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$406.$ In the token passing approach of distributed systems, processes are organized in a ring structure $\_\_\_\_\_\_\_\_\_\_\_\_$

Question $11$Answer

a$.$

both logically and physically

b$.$

logically

c$.$

none of the mentioned

d$.$

physically

Question $12$

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$2005.$What are characteristic of Network Operating Systems $?$

Question $12$Answer

a$.$

All of the mentioned

b$.$

They are simple to use

c$.$

Users are aware of multiplicity of machines

d$.$

They are transparent

Question $13$

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$2011.$What are characteristics of Distributed Operating system $?$

Question $13$Answer

a$.$

It is a collection of processor

b$.$

They do not share memory

c$.$

All processors are synchronized

d$.$

None of the mentioned

Question $14$

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$314.$ Which of the following is the least secure method of authentication?

Question $14$Answer

a$.$

fingerprint

b$.$

Password

c$.$

retina pattern

d$.$

Key card

Question $15$

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$100.$ What are non characteristics of session semantics?

Question $15$Answer

a$.$

Each client obtains a working copy from the server

b$.$

When file is closed, the modified file is copied to the file server

c$.$

Easy to implement in a single processor system

d$.$

The burden of coordinating file sharing is ignored by the system