2241: Biological Oxygen Demand (BOD) is a standard criterion for
(a) Measuring oxygen levels in blood
(b) Computing oxygen levels in forest ecosystems
(c) Pollution assay in aquatic ecosystems
(d) Assessing oxygen levels in high altitude regions
2242: What is the likely impact of decrease of population on economy?
(a) Increase in per capita income
(b) Decrease in per capita income
(c) Increase in investment
(d) Decrease in savings
2243: With reference to Bitcoins, sometimes seen in the news, which of the following statements is/are correct?
1. Bitcoins are tracked by the Central Banks of the countries.
2. Anyone with a Bitcoin address can send and receive Bitcoins from anyone else with a Bitcoin address.
3. Online payments can be sent without either side knowing the identity of the other.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
2244: With reference to 'Initiative for Nutritional Security through Intensive Millets Promotion', which of the following statements is/are correct?
1. This initiative aims to demonstrate the improved production and post-harvest technologies, and to demonstrate value addition techniques, in an integrated manner, with cluster approach.
2. Poor, small, marginal and tribal farmers have larger stake in this scheme.
3. An important objective of the scheme is to encourage farmers of commercial crops to shift to millet cultivation by offering them free kits of critical inputs of nutrients and micro irrigation equipment.
Select the correct answer using the code given below.
(a) 1 only
(b) 2 and 3 only
(c) 1 and 2 only
(d) 1, 2 and 3
2245: What is "Virtual Private Network" ?
(a) It is a computer network across a public internet that provides users access to their organization's network while maintaining the security of the information transmitted
(b) It is a private computer network of an organization where the remote users can transmit encrypted information through the server of the organization
(c) It is a computer network in which users can access a shared pool of computing resources through a service provider
(d) None of the statements (a), (b) and (c) given above is a correct description of Virtual Private Network