Questions (173)
Q57CSE2011
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 statements (a) and (b) given above are correct in this context
✓ Correct answer: (A)
Science & Technology › IT/Computing/Cyber
Q69CSE2011
A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD?
- DVD supports Standard Definition video while BD supports High Definition video
- Compared to a DVD, the BD format has several times more storage capacity
- Thickness of BD is 2-4 mm while that of DVD is 1-2 mm
Which of the statements given above is/are correct?
- A 1 only
- B 1 and 2 only ✓
- C 2 and 3 only
- D 1, 2 and 3
✓ Correct answer: (B)
Science & Technology › IT/Computing/Cyber
Q99CSE2011
What is "Virtual Private Network"?
- A It is a private computer network of an organization where the remote users can transmit encrypted information through the server of the organization
- B 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 ✓
- 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
✓ Correct answer: (B)
Science & Technology › IT/Computing/Cyber
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