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In cloud computing, what type of service provides virtualized computing resoures, such as servers and storage, on a pay-as- you-go basis?
In which of the following service models the hardware is virtualized in the cloud?
Out of 60 customers, 10 chose service 1 and 2, 15 chose service 2 and 3 and 5 chose service 1 and 3, 15 chose only service 2. 20 chose service 1, 35 chose service 2, and 30 chose service 3.  How many chose all the three services?
Which of the following functional cloud computing hardware/software stack is the Cloud Reference Model?
The Weberian model of bureaucracy has been criticised from a variety of stand points.
Consider the following points in this regard:
1. The Weberian model appears to be a 'machine theory' and a closed system model taking little account of organisational interactions with the environment.
2. The structural features of bureaucracy as laid down by Weber might be suitable for routine and repetitive tasks but these would produce dysfunctional consequences in terms of human behaviour if the jobs would involve innovation and creativity.
3. Weberian model has not been found to respond adequately to the tasks of socioeconomic transformation in the developing countries. These tasks require quick changes whereas the capacity of the Weberian model for adaptation to change is rather slow.
4. Weber's model is confined to the study of formal bureaucratic structure and fails to take notice of the informal structure of bureauracy such as informal relations, informal norms and values, an informal power hierarchy and informal power struggles.
Which of the above points make a valid criticism of the Weberian model? Select the correct answer from below:
A _________ is a cloud computing service that is both hardware and software.
Cloud computing has the following distinct characteristics : (A) The service is hosted on the internet. (B)  It is made available by a service provider. (C) It computes and predicts rain when the weather is cloudy. (D) The service is fully managed by the provider Choose the correct answer from the options given below :
The plum pudding ( first model )of the atom was proposed by JJ Thomson. Which of the following is/are the limitations of the Thomson model (i) The model wasn't able to explain the alpha scattering (ii) The model failed to explain the position of nuclei  (iii) The model failed to explain how the positive charges hold the negative charges (iv)The model failed to explain the existence of electrons in an atom 
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
_________ computing refers to applications and services that run on a distributed network using virtualized resources.