The following description of circuit switching and packet switching is correct ______ . (Multiple choices)

The following description of circuit switching and packet switching is correct ______ . (Multiple choices)
A . Small circuit switching delay and strong real-time transmission
B . High utilization of circuit-switched network resources
C . Large packet switching delay and poor real-time transmission
D . Low packet utilization network resource utilization

Answer: AC

Explanation:

Circuit switching:

Advantages: small delay, transparent transmission

Disadvantages: fixed bandwidth, low network resource utilization

Packet switching:

Advantages: multiplexing, high network resource utilization

Disadvantages: large delay, poor real-time performance, and complex device functions