In an operating system, indivisibility of operation means : (A) Operation is interruptable (B) Race - condition may occur (C) Processor can not be pre-empted (D) All of the above

In an operating system, indivisibility of operation means : (A) Operation is interruptable (B) Race - condition may occur (C) Processor can not be pre-empted (D) All of the above 
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Answer :

(C) Processor can not be pre-empted 
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The translator which performs macro calls expansion is called : (A) Macro processor (B) Micro pre-processor (C) Macro pre-processor (D) Dynamic linker

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Last Answer : (C) Macro pre-processor 

What is the output of the following program ? (Assume that the appropriate pre-processor directives are included and there is no syntax error) main() { char S[ ] = "ABCDEFGH"; printf ("%C",* (& S[3])); printf ("%s", S+4); printf ("%u", S); /* Base address of S is 1000 */ } (A) ABCDEFGH1000 (B) CDEFGH1000 (C) DDEFGHH1000 (D) DEFGH1000

Description : What is the output of the following program ? (Assume that the appropriate pre-processor directives are included and there is no syntax error) main() { char S[ ] = "ABCDEFGH"; printf ("%C",* (& ... Base address of S is 1000 */ } (A) ABCDEFGH1000 (B) CDEFGH1000 (C) DDEFGHH1000 (D) DEFGH1000

Last Answer : (D) DEFGH1000

In windows 2000 operating system all the processor-dependent code is isolated in a dynamic link library called (A) NTFS file system (B) Hardware abstraction layer (C) Microkernel (D) Process Manager

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Last Answer : (B) Hardware abstraction layer

A part of Windows 2000 operating system that is not portable is (A) Device Management (B) Virtual Memory Management (C) Processor Management (D) User Interface

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ECL is the fastest of all logic families. High Speed in ECL is possible because transistors are used in difference amplifier configuration, in which they are never driven into ............... (1) Race condition (2) Saturation (3) Delay (4) High impedance

Description : ECL is the fastest of all logic families. High Speed in ECL is possible because transistors are used in difference amplifier configuration, in which they are never driven into ............... (1) Race condition (2) Saturation (3) Delay (4) High impedance

Last Answer : Answer: 2  Explanation: Emitter-coupled logic (ECL) is the fastest of all logic families and therefore is used in applications where very high speed is essential. High speeds have become ... configuration, in which they are never driven into saturation and thereby the storage time is eliminated.

In Java variables, if first increment of the variable takes place and then the assignment occurs. This operation is also called ............................. . A) pre increment B) post increment C) incrementation D) pre incrementation

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Last Answer : Mmmm homework =)

A dynamic RAM has refresh cycle of 32 times per msec. Each refresh operation requires 100 nsec and a memory cycle requires 250 nsec. What percentage of memory’s total operating time is required for refreshes? (A) 0.64 (B) 0.96 (C) 2.00 (D) 0.32

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Last Answer : Answer: D Explanation: in 1ms : refresh = 32 times Memory cycle = 1ms/250ns = 106ns/250ns = 4000 times Therefore, % of refresh time = (32 x 100ns)/(4000 x 250ns) = 3200ns/1000000 x 100% = 0.32%

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.............. refers to a situation in which a process is ready to execute but is continuously denied access to a processor in deference to other processes. A) Synchronization B) Mutual Exclusion C) Dead lock D) Starvation

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……………. Allows definitions and query language statements to be entered; query results are formatted and displayed. A) Schema Processor B) Query Processor C) Terminal Interface D) None of the above

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