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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
A can complete 90% of a work in 18 days. Efficiency of B is 20% more than that of A. In how much time A and B will complete the whole work if A work 80% more efficiently as he actually did while B works 83.33% more efficiently as he actually did?
At their usual efficiency levels, A and B together finish a task in 12 days. If A had worked half as efficiently as she usually does, and B had worked thrice as efficiently as he usually does, the task would have been completed in 9 days. How many days would A take to finish the task if she works alone at her usual efficiency?
Two workers ‘A’ and ‘B’ working together completed a job in 5 days. Had ‘A’ worked twice as efficiently as he actually did and ‘B’ worked one-third as efficiently as he actually did, the work would have completed in 3 days. In how many days could ‘A’ alone complete the job?
A and B pipes can fill a tank together in 12 hours. If A worked half as efficiently as it usually does and if B worked thrice as efficiently as it usually does then the tank gets filled in 9 hours. How long would it take for pipe A to fill the tank alone completely? 
________________ are unnecessary software which infiltrates user’s system, spy on user’s activities, stealing internet usage data & sensitive information of that user.
With reference to pramāna theory both on dialogical and philosophical discourse, which of the following options are correct? (A) It furnishes the required grounding for the thesis to be backed up by a certain means of knowledge. (B) It provides the necessary platform to incisely analyse the proposed thesis. (C) It enables us to succinitly summarise the observations, that stem out of analysis, in the form of anumāna or nyāya prayoga. (D) It enables the debater to elicit acceptance of his/her own belief system on the basis of formal validity alone. Choose the correct answer from the options given below :
The operating system is a set of system programs that provides a number of facilities to a user to allow the use of a computer. Which of the below-listed facilities are provided by the operating system? i) Program to control input/output devices ii) Program to manage user files iii) Allocation of a resource of a computer iv) Program to select appropriate translators requested
A multiprocessing technology which enables software to treat a single processor as two processors to utilize the processing power in the chip that would otherwise go unused and lets the chip operate more efficiently resulting in faster processing is called
What is sent to the user via HTTP, invoked using the HTTP protocol on the user's computer, and run on the user's computer as an application?