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User level threads are threads that are visible to the programmer and are unknown to the kernel. The operating system kernel supports and manages kernel level threads. Three different types of models relate user and kernel level threads. Which of the following statements is/are true ? (a) (i) The Many - to - one model maps many user threads to one kernel thread (ii) The one - to - one model maps one user thread to one kernel thread (iii) The many - to - many model maps many user threads to smaller or equal kernel threads (b) (i) Many - to - one model maps many kernel threads to one user thread (ii) One - to - one model maps one kernel thread to one user thread (iii) Many - to- many model maps many kernel threads to smaller or equal user threads
An Investigator interviewed 100 students to determine the performance of three drinks milk, coffee and tea. The investigator reported that 10 students take all three drinks, 20 students take milk and coffee, 30 students take coffee and tea; 25 students take milk and tea; 12 students take milk only. 5 students take coffee only and 8 student take tea only. Then the number of students who did not take any of the three drinks is λ. The value of \(\frac{\lambda }{4}\) is equal to
Study information given and select valid conclusion/s from the given statements based on it. In a joint family the number of members who take only coffee is equal to the half the number of members who take tea and the number of persons who take only tea is equal to the half the number of persons who take coffee. Statements: a. The total number of persons who take either coffee or tea or both is thrice the number of persons who take only coffee or only tea. b. The total number of persons who take only coffee and those who take only tea is twice the number of persons who take both coffee and tea.
Study the following information and select guilty person. Ram was visiting a place where inhabitants always answer any question with two sentences. One of these is always true while other is always false. While on the visit he found that his bag has been stolen and he suspected three persons those visited his guest room. He was sure that only one person is guilty. When he questioned them they replied as follows. R ∶ S did not do it. I did not do it. S ∶ I did not do it. P did not do it. T ∶ I did not do it. I did not know who did it.
X' agreed to supply 1000 tons of iron at Rs. 100 per ton to 'Y' to be delivered not later than 31st January, 2002. 'X' also entered into a contract with 'A' for purchase of 1000 tons of iron at Rs. 80 per ton telling 'A' clearly that the iron is needed before 31st January, 2002 for supply to 'Y' to fulfil the contract with Y. 'A' fails to supply the iron to 'X' who in tum failed to supply the same to 'Y'. In an action by 'X' against 'A'.
Directions : In each of the following questions a statement is given, followed by three conclusions. Give answer :

Statement : The residents of the locality wrote a letter to the Corporation requesting to restore normalcy in the supply of drinking water immediately as the supply at present is just not adequate.

Assumptions :
I. The Corporation may not take any action on the letter.
II. The municipality has enough water to meet the demand.
III. The water supply to the area was adequate in the past.
You are the administrator of the Windows 2000 Server network shown in the exhibit. Users in the Research group and the Executive group have permission to access the Internet through a Windows 2000 Server computer running Microsoft Proxy Server. These users must enter their proxy server user names and passwords to connect to the proxy server, to the Internet, and to your local intranet server. The users who do not access the Internet do not have user accounts on the proxy server and, therefore, cannot connect to the intranet server. You want all users to be able to connect to the intranet server without entering a separate user name and password. What should you do?
Three persons A, B & C wear shirts of Black, Blue and Orange colours (not necessarily in the older) and pants of green, yellow and orange (not necessarily in that order). No person wore shirt and pant of the same colour. Further, it is given that, 1. A did not wear shirt of black colour. 2. B did not wear shirt of blue colour. 3. C did not wear shirt of orange colour. 4. A did not wear the pants of green colour. 5. B wore pants of orange colour. What were the colours of the pants and shirts worn by C respectively?
Three persons A, B and C wear shirts of Black, Blue and Orange colours (not necessarily in the order) and pants of green, yellow and orange (not necessarily in that order). No person wore shirt and pant of the same colour. Further, it is given that, 1. A did not wear shirt of black colour. 2. B did not wear shirt of blue colour. 3. C did not wear shirt of orange colour. 4. A did not wear pant of green colour. 5. B wore pant of orange colour What were the colours of the pant and shirt worn by C respectively?
Three persons P,Q and R wore shirts of White, Black and Blue colours (not necessarily in that order) and pants of Green, Red and Whitecolours (not necessarily in that order). No persons wore shirts and pants of same colour. And further it is given that 1.A did not wear shirt of Black colour.
2.B did not wear shirt of Blue colour.
3.C did not wear shirt of White colour.
4.A did not wear pants of Green colour.
5.B wear pant of White colour. What were the colours of the pant and shirt wear by person A respectively?