| 71. | Which of the following statements is not correct with reference to distributed systems ? |
| a. | Distributed system represents a global view of the network and considers it as a virtual uni-processor system by controlling and managing resources across the network on all the sites. |
| b. | Distributed system is built on bare machine, not an add-on to the existing software. |
| c. | In a distributed system, kernel provides smallest possible set of services on which other services are built. This kernel is called microkernel. Open servers provide other services and access to shared resources. |
| d. | In a distributed system, if a user wants to run the program on other nodes or share the resources on remote sites due to their beneficial aspects, user has to log on to that site. |
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Answer: (d).In a distributed system, if a user wants to run the program on other nodes or share the resources on remote sites due to their beneficial aspects, user has to log on to that site.
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| 72. | The portion of Windows 2000 operating system which is not portable is |
| a. | processor management |
| b. | user interface |
| c. | device management |
| d. | virtual memory management |
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Answer: (d).virtual memory management
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| 73. | Match the following for Windows Operating System :
(a) Hardware abstraction layer (i) Starting all processes, emulation of different operating systems, security functions, transform character based applications to graphical representation. (b) Kernel (ii) Export a virtual memory interface, support for symmetric multiprocessing, administration, details of mapping memory, configuring I/O buses, setting up DMA. (c) Executive (iii) Thread scheduling, interrupt and exception handling, recovery after power failure. (d) Win32 subsystem (iv) Object manager, virtual memory manager, process manager, plug and- play and power manager. Codes : (a) (b) (c) (d) |
| a. | (i) (iii) (ii) (iv) |
| b. | (iv) (iii) (ii) (i) |
| c. | (ii) (iii) (iv) (i) |
| d. | (iii) (ii) (i) (iv) |
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Answer: (c).(ii) (iii) (iv) (i)
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| 74. | Repository of information gathered from multiple sources, storing under unified scheme at a single site is called as |
| a. | Data mining |
| b. | Meta data |
| c. | Data warehousing |
| d. | Database |
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Answer: (c).Data warehousing
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| 75. | The task of correcting and pre processing data is called as |
| a. | Data streaming |
| b. | Data cleaning |
| c. | Data mining |
| d. | Data storming |
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Answer: (b).Data cleaning
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| 76. | When a mobile telephone physically moves from one to another cell, the base station transfers ownership to the cell getting strongest signal. This process is known as................. |
| a. | handoff |
| b. | mobile switching |
| c. | mobile routing |
| d. | cell switching |
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Answer: (a).handoff
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| 77. | Identify the incorrect statement : |
| a. | The overall strategy drives the E-Commerce data warehousing strategy. |
| b. | Data warehousing in an E-Commerce environment should be done in a classical manner. |
| c. | E-Commerce opens up an entirely new world of web server. |
| d. | E-Commerce security threats can be grouped into three major categories. |
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Answer: (d).E-Commerce security threats can be grouped into three major categories.
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| 78. | ……………. is not an E-Commerce application. |
| a. | House banking |
| b. | Buying stocks |
| c. | Conducting an auction |
| d. | Evaluating an employee |
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Answer: (d).Evaluating an employee
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| 79. | …………. is a satellite based tracking system that enables the determination of person’s position. |
| a. | Bluetooth |
| b. | WAP |
| c. | Short Message Service |
| d. | Global Positioning System |
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Answer: (d).Global Positioning System
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| 80. | Suppose that a given application is run on a 64-processor machine and that 70 percent of the application can be parallelized. Then the expected performance improvement using Amdahl’s law is |
| a. | 4.22 |
| b. | 3.22 |
| c. | 3.32 |
| d. | 3.52 |
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Answer: (b).3.22
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