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   1.23)The value of k for which 4x^2 - 8xy + ky^2 = 0 does not  represent a pair of straight 

lines(both passing through the      origin) is :

     a) 0   b) 2   c) 9   d) 3 

2.7) the address generated by tracing a particular program executing a pure demand paging system 

with 100 recoeds per page with 1 free main memory frame is recorded as follows. what is the 

number of page faults ?

 0100,0200,0430,0499,0510,0530,0560,0120,0220,0240,0260,0320,0370

   a) 13   b) 8   c) 7   d) 10  

Pls try to solve this questions, These are from GATE 95

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Adhiti Newbie Joined: 02Feb2007 Online Status: Offline Posts: 32	Topic: Gate 95 Questions Posted: 02Feb2007 at 11:42am
	1.23)The value of k for which 4x^2 - 8xy + ky^2 = 0 does not represent a pair of straight lines(both passing through the origin) is : a) 0 b) 2 c) 9 d) 3 2.7) the address generated by tracing a particular program executing a pure demand paging system with 100 recoeds per page with 1 free main memory frame is recorded as follows. what is the number of page faults ? 0100,0200,0430,0499,0510,0530,0560,0120,0220,0240,0260,0320,0370 a) 13 b) 8 c) 7 d) 10 Pls try to solve this questions, These are from GATE 95 Post Resume: Click here to Upload your Resume & Apply for Jobs

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Alok Newbie Joined: 02Feb2007 Online Status: Offline Posts: 19	Posted: 02Feb2007 at 4:02pm
	Since pure demang paging system with Page size 100 records and one3 main mem frame. Lec See 0100 - Page Fault ( Load 100-199) 0200- Page Fault ( Load 200-299) 0430- Page Fault ( Load 400-499) 0499 - No Page Fault(NPF) 0510 - Page Fault ( Load 500-599) 0530 - NPF 0560 - NPF 0120- Page Fault ( Load 100-199) 0220- Page Fault ( Load 200-299) 0240 - NPF 0260- NPF 0320 - Page Fault ( Load 300-399) 0370 - NPF So total PF = 7
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