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55.

Let the time taken to switch between user and kernel modes of execution be t₁ while the time taken to switch between two processes be t₂. Which of the following is TRUE?
[1 mark]
(A) t₁ > t₂
(B) t₁ = t₂(C) t₁ < t₂(D) nothing can be said about the relation between t₁ and t₂

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2011

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56.

A company needs to develop digital signal processing software for one of its newest inventions. The software is expected to have 40000 lines of code. The company needs to determine the effort in person-months needed to develop this software using the basic COCOMO model. The multiplicative factor for this model is given as 2.8 for the software development on embedded systems while the exponentiation factor is given as 1.20. What is the estimated effort in person-months? [1 mark]
(A) 234.25
(B) 932.50
(C) 287.80
(D) 122.40

asked in Computer Science And Engineering, 2011

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57.

Which of the following pairs have DIFFERENT expressive power? [1 mark]
(A) Deterministic finite automata (DFA) and Non-deterministic finite automata (NFA)
(B) Deterministic push down automata (DPDA) and Non-deterministic push down automata (NPDA)
(C) Deterministic single-tape Turing machine and Non-deterministic single-tape Turing machine
(D) Single-tape Turing machine and multi-tape Turing machine

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2011

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58.

HTML (Hyper Text Markup Language) has language elements which permit certain actions other than describing the structure of the web document. Which one of the following actions is NOT supported by pure HTML (without any server or client side scripting) pages? [1 mark]
(A) Embed web objects from different sites into the same page
(B) Refresh the page automatically after a specified interval
(C) Automatically redirect to another page upon download
(D) Display the client time as part of the page

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2011

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59.

Which one of the following is NOT desired in a good Software Requirement Specifications (SRS) document? [1 mark]
(A) Functional Requirements
(B) Non-Functional Requirements
(C) Goals of Implementation
(D) Algorithms for Software Implementation

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2011

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60.

A computer handles several interrupt sources of which of the following are relevant for this question.
• Interrupt from CPU temperature sensor (raises interrupt if CPU temperature is too high)
• Interrupt from Mouse (raises interrupt if the mouse is moved or a button is pressed)
• Interrupt from Keyboard (raises interrupt when a key is pressed or released)
• Interrupt from Hard Disk (raises interrupt when a disk read is completed)
Which one of these will be handled at the HIGHEST priority? [1 mark]
(A) Interrupt from Hard Disk
(B) Interrupt from Mouse
(C) Interrupt from Keyboard
(D) Interrupt from CPU temperature sensor

last reply by CpjJwWHV • 14 years ago • asked in Computer Science And Engineering, 2011

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