Unit-3 MCQ

What does RFID stand for?

• Remote Frequency Identification

• Radio Frequency Identification

• Random Frequency Identification

• Rapid Frequency Identification

Which type of RFID tag does not have an electric plug or battery?

• Dynamic RFID

• Semi-passive RFID

• Active RFID

• Passive RFID

What does NFC stand for?

• National Frequency Connection

• New Field Communication

• Network Frequency Control

• Near Field Communication

Which type of NFC device can both send and receive data?

• Passive NFC devices

• Static NFC devices

• Active NFC devices

• Interactive NFC devices

What is the main difference between NFC and Bluetooth/WiFi?

• NFC can induce electric currents within passive components

• NFC operates at a higher frequency than Bluetooth/WiFi

• NFC requires a power source for passive devices

• NFC has a longer range than Bluetooth/WiFi

Which band is considered somewhat obsolete due to lower data speeds than 5 GHz?

• 2.4 GHz

• 5 GHz

• 802.11n

• 802.11ac

Which IEEE standard introduced in 2009 significantly improved speed and range over its predecessors?

• 802.11a

• 802.11n

• 802.11b

• 802.11g

What is the full form of ICMP in networking?

• Internet Configuration Management Protocol

• Internet Control Message Protocol

• Internet Connection Management Protocol

• Internet Communication Message Protocol

Which protocol is designed for underwater communication?

• CORPL

• E-CARP

• RPL

• CARP

What is the main purpose of DHCP in networking?

• Physical layer management

• Routing efficiency optimization

• Ensuring secure data transmission

• Centralized management of IP addresses