Distributed Computing MCQ's




Question 151 :
A 'glue' between client and server parts of application

  1. Middleware
  2. Firmware
  3. Package
  4. System Software
  

Question 152 :
In which type of communication, messages are stored as long as sender and receiver are executing?

  1. Persistent
  2. Transient
  3. RMI based Communication
  4. RPC based Communication
  

Question 153 :
A client's clock reads 3:20:00. The server's clock reads 3:10:00 when they synchronize using the Berkeley algorithm. Assume message delays are negligible. What is the time at the client after synchronization?

  1. 0.135416667
  2. 0.177083333
  3. 0.21875
  4. 0.260416667
  

Question 154 :
Load balancing is the way of distributing _______across a set of processors, which is connected to a______.

  1. Load units, network
  2. Task, network
  3. Process, LAN
  4. Task, LAN
  

Question 155 :
The aim of load sharing approach is to refrain nodes from being _______ nodes.

  1. Dead
  2. Idle
  3. Strong
  4. Busy
  

Question 156 :
__________ refers to degree of tolerance against component failure and errors

  1. Performance
  2. Availability
  3. Integrity
  4. Reliability
  

Question 157 :
The Ricart - Agrawala distributed mutual exclusion algorithm is:

  1. Less efficient and less fault tolerant than a centralized algorithm.
  2. More efficient and more fault tolerant than a centralized algorithm.
  3. More efficient but less fault tolerant than a centralized algorithm.
  4. Less efficient but more fault tolerant than a centralized algorithm.
  

Question 158 :
Middleware forms a layer between

  1. application and distributed platforms
  2. several individual computers
  3. application and client
  4. server and client
  

Question 159 :
The following is the desirable feature of global scheduling algorithm:

  1. Dynamic in nature
  2. Static by nature
  3. Cannot assure about actual nature
  4. Fix in nature
  

Question 160 :
Compared to single sharing system, the distribute system has higher________and __________

  1. noise and irrelevance
  2. reliability and availability
  3. bottleneck and single point of failure
  4. noise and bottleneck
  

Question 161 :
_______ is not possible in distributed file system

  1. File replication
  2. Migration
  3. Client interface
  4. Remote access
  

Question 162 :
A type of consistency model in which shared data can be counted on to be consistent only after a synchronization is done

  1. Weak consistency
  2. Sequential consistency
  3. Casual consistency
  4. Strict consistency
  

Question 163 :
What is the feature of stateful server?

  1. Longer server recovery time
  2. Quick recovery after reboot
  3. File operations must be idempotent
  4. Simple server design
  

Question 164 :
Scaling transparency hides

  1. System expansion
  2. System collaboration
  3. System failure
  4. System security
  

Question 165 :
The ___________ operating system is specifically designed for heterogeneous multicomputer system, where multiple hardware and network platforms are supported.

  1. distributed
  2. network
  3. middleware
  4. hybrid
  

Question 166 :
Which one is the disadvantage of Remote Procedure Call

  1. There is no flexibility in RPC for hardware architecture.
  2. support process oriented and thread oriented models.
  3. The effort to re-write and re-develop the code is minimum
  4. Many of the protocol layers are omitted by RPC to improve performance.
  

Question 167 :
When a group can mask any k concurrent member failures,it is saidto be k-fault tolerant.

  1. k is called max limit of fault tolerance.
  2. k is called degree of fault tolerance.
  3. k is called tolerance threshold
  4. k is called fault tolerance constant.
  

Question 168 :
The remote method invocation __________

  1. Allows a process to invoke memory on a remote object
  2. Allows a thread to invoke a method on a remote object
  3. Allows a thread to invoke memory on a remote object
  4. allows a process to invoke a method on a remote object
  

Question 169 :
In X.500, each local directory is called a _____________________.

  1. Directory System Agent
  2. Local System Agent
  3. Personal System Agent
  4. Secret System Agent
  

Question 170 :
X.500 is a way to route e-mail as well as to provide name lookup, using the _________________.

  1. Lightweight Directory Access Protocol
  2. Directory Access Protocol
  3. Global Directory Access Protocol
  4. Local Directory Access Protocol
  

Question 171 :
A data consistency model in which shared data are made consistent when a critical region is exited.

  1. Casual consistency
  2. Sequential consistency
  3. Release consistency
  4. Strict consistency
  

Question 172 :
Network operating system runs on

  1. Server
  2. Every system in network
  3. Client machines only
  4. Inter- Network
  

Question 173 :
According to the ring algorithm, links between processes are _____

  1. Bidirectional
  2. Unidirectional
  3. Both bidirectional and unidirectional
  4. omnidirectional
  

Question 174 :
_______________ in NFS involves the parsing of a path name into separate directory entries – or components.

  1. Path parse
  2. Path name parse
  3. Path name translation
  4. Path name parsing
  

Question 175 :
Tasks are scheduled to improve ____-in task assignement approach

  1. concurrecy
  2. performance
  3. reliability
  4. replication
  

Question 176 :
______supports reliable servers for all network clients accessing transparent and homogeneous namespace file locations.

  1. Andrew File System
  2. Distributed management System
  3. Asynchronous system
  4. Synchronous System
  

Question 177 :
Distributed Mutual Exclusion Algorithm does not use

  1. Coordinator process
  2. Token
  3. Logical clock for event ordering
  4. Request and Reply messages
  

Question 178 :
What is the drawback of non-interleaving technique compared to interleaving technique in stream-oreinted communication

  1. Non-interleaving techniques is not providing synchronization.
  2. Non-interleaving technique is more complex.
  3. Non-interleaving technique does not handle loss of packets.
  4. Non-interleaving techniques requires larger buffer space.
  

Question 179 :
An architecture where clients first communicate the server for data then format and display it to the users, is known as ___________

  1. Client/Server architecture
  2. Three-tier architecture
  3. Two-tier architecture
  4. Peer-to-Peer architecture
  

Question 180 :
Data replication, where the same data is stored

  1. on single storage device
  2. on multiple storage devices
  3. on storage area network
  4. on distributed environment
  
Pages