CWICP-202

Which wireless IoT technology is best suited for long-range, low-power communication?A . Wi-FiB . LoRaWANC . BluetoothD . NFCView AnswerAnswer: B

Which upper-layer protocols are commonly used in IoT applications for communication? (Select two)A . CoAPB . TCPC . MQTTD . FTPView AnswerAnswer: AC

Which of the following is a security protocol designed specifically for low-power, constrained IoT devices?A . WPA2B . TLSC . DTLSD . IPSecView AnswerAnswer: C

Which protocol is used for constrained devices and supports lightweight communication in IoT networks?A . MQTTB . HTTPC . CoAPD . FTPView AnswerAnswer: C

In wireless IoT troubleshooting, what can cause excessive retries and packet loss in a communication session?A . High signal-to-noise ratioB . Congested frequency channelsC . Use of encryptionD . Low bandwidth usageView AnswerAnswer: B

Which IoT security challenge is most directly addressed by implementing mutual authentication?A . Data integrityB . Device identity verificationC . Secure data storageD . Network latencyView AnswerAnswer: B

Which responsibilities are associated with the PHY layer in a wireless IoT network? (Select two)A . Modulating and demodulating data signalsB . Encrypting data for transmissionC . Managing frequency channelsD . Addressing devices in the networkView AnswerAnswer: AC

What protocol is responsible for providing MAC layer security in IEEE 802.15.4 networks?A . Advanced Encryption Standard (AES)B . IP Security (IPsec)C . Transport Layer Security (TLS)D . Wi-Fi Protected Access (WPA2)View AnswerAnswer: A

Which of the following is a primary advantage of Wi-Fi HaLow over traditional Wi-Fi for IoT applications?A . Higher data ratesB . Longer range and lower power consumptionC . Improved security featuresD . Compatibility with all existing IoT protocolsView AnswerAnswer: B

Which techniques are used by the MAC layer to improve security in wireless IoT networks? (Select two)A . Data encryptionB . Address filteringC . Address filteringD . Time slottingView AnswerAnswer: AB