MCQOPTIONS
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MCQOPTIONS
This section includes 228 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science Engineering (CSE) knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
What things are the transaction coordinator is responsible for? |
| A. | starting the execution of the transaction |
| B. | breaking transaction into a number of subtransactions |
| C. | coordinating the termination of the transaction |
| D. | all of the mentioned |
| Answer» E. | |
| 202. |
What are the advantages of token(with rings) passing approach? i) One processor as coordinator which handles all requests ii) No starvation if the ring is unidirectional iii) There are many messages passed per section entered if few users want to get in section iv) One processor as coordinator which handles all requests v) Only one message/entry if everyone wants to get in |
| A. | i |
| B. | ii and iii |
| C. | i, ii and iii |
| D. | i, ii and iv |
| Answer» E. | |
| 203. |
What are the characteristics of mutual exclusion using centralized approach? |
| A. | one processor as coordinator which handles all requests |
| B. | it requires request,reply and release per critical section entry |
| C. | the method is free from starvation |
| D. | all of the mentioned |
| Answer» E. | |
| 204. |
In distributed file system, file name does not reveal the file’s ___________ |
| A. | local name |
| B. | physical storage location |
| C. | both local name and physical storage location |
| D. | none of the mentioned |
| Answer» C. both local name and physical storage location | |
| 205. |
There is no need to establish and terminate a connection through open and close operation in ___________ |
| A. | stateless file service |
| B. | stateful file service |
| C. | both stateless and stateful file service |
| D. | none of the mentioned |
| Answer» B. stateful file service | |
| 206. |
In a distributed file system, a file is uniquely identified by ___________ |
| A. | host name |
| B. | local name |
| C. | the combination of host name and local name |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 207. |
In a distributed file system, _______ is mapping between logical and physical objects. |
| A. | client interfacing |
| B. | naming |
| C. | migration |
| D. | heterogeneity |
| Answer» C. migration | |
| 208. |
In a distributed file system, when a file’s physical storage location changes ___________ |
| A. | file name need to be changed |
| B. | file name need not to be changed |
| C. | file’s host name need to be changed |
| D. | file’s local name need to be changed |
| Answer» C. file’s host name need to be changed | |
| 209. |
Which one of the following hides the location where in the network the file is stored? |
| A. | transparent distributed file system |
| B. | hidden distributed file system |
| C. | escaped distribution file system |
| D. | spy distributed file system |
| Answer» B. hidden distributed file system | |
| 210. |
_______ is not possible in distributed file system. |
| A. | file replication |
| B. | migration |
| C. | client interface |
| D. | remote access |
| Answer» C. client interface | |
| 211. |
The file once created can not be changed is called ___________ |
| A. | immutable file |
| B. | mutex file |
| C. | mutable file |
| D. | none of the mentioned |
| Answer» B. mutex file | |
| 212. |
______ of the distributed file system are dispersed among various machines of distributed system. |
| A. | clients |
| B. | servers |
| C. | storage devices |
| D. | all of the mentioned |
| Answer» E. | |
| 213. |
What is the coherency of replicated data? |
| A. | all replicas are identical at all times |
| B. | replicas are perceived as identical only at some points in time |
| C. | users always read the most recent data in the replicas |
| D. | all of the mentioned |
| Answer» E. | |
| 214. |
What are characteristic of NFS protocol? |
| A. | search for file within directory |
| B. | read a set of directory entries |
| C. | manipulate links and directories |
| D. | all of the mentioned |
| Answer» E. | |
| 215. |
What is a stateless file server? |
| A. | it keeps tracks of states of different objects |
| B. | it maintains internally no state information at all |
| C. | it maintains some information in them |
| D. | none of the mentioned |
| Answer» C. it maintains some information in them | |
| 216. |
What are the characteristics of the stateless server? |
| A. | easier to implement |
| B. | they are not fault-tolerant upon client or server failures |
| C. | they store all information file server |
| D. | they are redundant to keep data safe |
| Answer» B. they are not fault-tolerant upon client or server failures | |
| 217. |
What are the advantages of file replication? |
| A. | improves availability & performance |
| B. | decreases performance |
| C. | they are consistent |
| D. | improves speed |
| Answer» B. decreases performance | |
| 218. |
What are the characteristics of a distributed file system? |
| A. | its users, servers and storage devices are dispersed |
| B. | service activity is not carried out across the network |
| C. | they have single centralized data repository |
| D. | there are multiple dependent storage devices |
| Answer» B. service activity is not carried out across the network | |
| 219. |
A process that is based on IPC mechanism which executes on different systems and can communicate with other processes using message based communication, is called ________ |
| A. | local procedure call |
| B. | inter process communication |
| C. | remote procedure call |
| D. | remote machine invocation |
| Answer» D. remote machine invocation | |
| 220. |
What is not true about a distributed system? |
| A. | it is a collection of processor |
| B. | all processors are synchronized |
| C. | they do not share memory |
| D. | none of the mentioned |
| Answer» C. they do not share memory | |
| 221. |
What is not a major reason for building distributed systems? |
| A. | resource sharing |
| B. | computation speedup |
| C. | reliability |
| D. | simplicity |
| Answer» E. | |
| 222. |
What is the full form of RMI? |
| A. | remote memory installation |
| B. | remote memory invocation |
| C. | remote method installation |
| D. | remote method invocation |
| Answer» E. | |
| 223. |
To resolve the problem of data representation on different systems RPCs define _____________ |
| A. | machine dependent representation of data |
| B. | machine representation of data |
| C. | machine-independent representation of data |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 224. |
The remote method invocation __________ |
| A. | allows a process to invoke memory on a remote object |
| B. | allows a thread to invoke a method on a remote object |
| C. | allows a thread to invoke memory on a remote object |
| D. | allows a process to invoke a method on a remote object |
| Answer» C. allows a thread to invoke memory on a remote object | |
| 225. |
What is stub? |
| A. | transmits the message to the server where the server side stub receives the message and invokes procedure on the server side |
| B. | packs the parameters into a form transmittable over the network |
| C. | locates the port on the server |
| D. | all of the mentioned |
| Answer» E. | |
| 226. |
RPC provides a(an) _____ on the client side, a separate one for each remote procedure. |
| A. | stub |
| B. | identifier |
| C. | name |
| D. | process identifier |
| Answer» B. identifier | |
| 227. |
To differentiate the many network services a system supports ______ are used. |
| A. | variables |
| B. | sockets |
| C. | ports |
| D. | service names |
| Answer» D. service names | |
| 228. |
Remote Procedure Calls are used ____________ |
| A. | for communication between two processes remotely different from each other on the same system |
| B. | for communication between two processes on the same system |
| C. | for communication between two processes on separate systems |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |