1506: What is the difference between Bluetooth and Wi-Fi devices?
(a) Bluetooth uses 2-4 GHz radio frequency band, whereas Wi-Fi can use 2-4 GHz or 5 GHz frequency band
(b) Bluetooth is used for Wireless Local Area Networks (WLAN) only, whereas Wi-Fi is used for Wireless Wide Area Networks (WWAN) only
(c) When information is transmitted between two devices using Bluetooth technology, the devices have to be in the line of sight of each other, but when Wi-Fi technology is used the devices need not be in the line of sight of each other
(d) The statement (a) and (b) given above are correct in this context
1507: How many judges are there in the International Court of Justice?
(a) 10
(b) 12
(c) 15
(d) 20
1508: A present group of nations known as G-8 started first as G-7. Which one among the following was not one of them?
(A) Canada
(B) Russia
(C) Italy
(D) Japan
1509: Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?
(a) Bretton Woods Conference
(b) Montreal Protocol
(c) Kyoto Protocol
(d) Nagoya Protocol
1510: A tree species in Mauritius failed to reproduce because of the extinction of a fruit-eating bird. Which one of the following was that bird ?
(a) Dove
(b) Dodo
(c) Condor
(d) Skua