Question

11) Which of the following is/are the feature(s) of AMQP?
a. Targeted QoS
b. Persistence
c. High speed protocol
d. All of these


12) IEEE 802.15.4 uses which of the following for accessing the channel?
a. Carrier sense
multiple access (CSMA)
b. Carrier sense multiple access with collision detection (CSMA-CD)
c. Carrier sense multiple access with collision avoidance (CSMA-CA)
d. None of these

Answer 1

Answer:

1.

AMQP (Advanced Message Queuing Protocol) is an open standard application layer protocol designed to allow development of applications which are work as message-oriented middleware.

Some features of AMQP are:

• Message orientation,

• Queuing,

• Routing,

• Reliability and security,

• Targeted Qos (Quality of service),

• Standards compliance and safety,

• Persistence,

• Delivery of message to multiple consumers,

• High speed protocol, etc.

Therefore the answer is d) All of the above

2.

C.CSMA-CA

Carrier-sense multiple access with collision avoidance (CSMA/CA) in computer networking, is a network multiple access method in which carrier sensing is used, but nodes attempt to avoid collisions by beginning transmission only after the channel is sensed to be "idle".When they do transmit, nodes transmit their packet data in its entirety

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