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IT (Computers) Multiple Choice Questions Answers Quiz - 18

1. Which of the following commands in Novell Netware Operating System permanently removes files that have been marked for deletion?
[A]PURGE
[B]REMOVE
[C]SALVAGE
[D]REVOKE


2. Which of the following commands in Novell Netware Operating System opens a spool file that trapsdata for printing?
[A]CAPTURE
[B]REMOVE
[C]SALVAGE
[D]REVOKE


3. Which of the following commands in Novell Netware Operating System permits the alteration of thefile attributes?
[A]NCOPY
[B]REMOVE
[C]SALVAGE
[D]FLAG


4. The subnet in Wide Area Network consists of
I. Transmission lines.
II. Routers.
III. Bridges.
[A]Only (I) above
[B]Only (II) above
[C]Only (III) above
[D]Both (I) and (II) above


5. The technology present in Metro Politan Network is
I. Distributed Queue Dual Bus.
II. Fiber Distributed Data Interface.
III. Fiber Distributed Data Bus.
[A]Only (I) above
[B]Only (II) above
[C]Only (III) above
[D]Both (I) and (II) above


6. ADP inc. a reputed BPO company, is maintaining the database of the customers office & home phone numbers. But it is having a problem in wasting space when the customers are using only either of them. So which of the following processes can help the company in eliminating the redundant data?
[A]Structuring
[B]Randomizing
[C]Analyzing
[D]Normalizing


7. The difference(s) between PBX (Private Branch Exchange) and Centrex networks is/are
I. In a Centrex network the switching equipment is located in one of the telephone company’s “central exchanges” instead of on the premises of a business.
II. Unlike PBX, a Centrex network incorporates data-over-voice technology for transmissions.
III. A Centrex network consists of large-scale networking systems that enable a business with several offices in the same area whereas a PBX is a telephone multiplexer connecting a large number of inhouse telephones to a smaller number of external lines that lead to the service provider’s telephone exchange.
[A]Only (I) above
[B]Only (II) above
[C]Both (I) and (II) above
[D]Both (I) and (III) above


8. In which of the following operations, OLAP (Online Analytical Processing) moves in the reverse direction and automatically displays detailed data that comprise consolidated information?
[A]Consolidation
[B]Drill down
[C]Slicing and dicing
[D]Abstraction


9. In which of the following analyses, an end user makes changes to variables or relationships among them, and observes the resulting changes in the values of other variables?
[A]What-if Analysis
[B]Sensitivity Analysis
[C]Goal-seeking Analysis
[D]Optimization Analysis


10. Entity-Relationship Model falls under which of the following Data Models?
[A]Relational Model
[B]Network Model
[C]Hierarchical Model
[D]Object-Based Logical Model


11. In computer networks, the two local area networks can be joined by using
[A]Routers
[B]Backbones
[C]Bridges
[D]Gateways


12. ATM breaks voice, video and data into fixed cells of 53 bytes. What is the size of data, control information in each cell?
[A]48 bytes, 5 bytes
[B]49 bytes, 4 bytes
[C]50 bytes, 3 bytes
[D]47 bytes, 6 bytes


13. In protocol hierarchy, IDU (interface data unit) is a combination of
[A]Interface control information, service data unit
[B]Interface control information, protocol data unit
[C]Protocol data unit, service access unit
[D]Interface control information, service access unit


14. Which of the following is false about network architecture?
I. Data is directly transferred from layer n on one computer to layer n on another computer.
II. At source machine each layer passes data and control information to the layer below it.
III. At destination machine each layer passes data and control information to the layer above it.
[A]Only (I) above
[B]Only (II) above
[C]Both (II) and (III) above
[D]Both (I) and (III) above


15. In computer networks, if the data travels in either of the direction but not simultaneously, then such type of communication is called
[A]Simplex communication
[B]Half-duplex communication
[C]Full-duplex communication
[D]Half-simplex communication


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