The combination of an IP address and a port number is known as _____
2015
The combination of an IP address and a port number is known as _____
- A.
network number
- B.
socket address
- C.
subnet mask number
- D.
MAC address
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Correct answer: B
Answer: socket address
Explanation: A socket address combines an IP address and a port number to uniquely identify a network endpoint (a specific process or service on a host). For TCP and UDP, this is commonly written as IP:port.
Example: 192.168.1.5:80 identifies port 80 on the host with IP address 192.168.1.5.
network number — the portion of an IP address that identifies the network; it does not include a port.
subnet mask number — a mask used to separate network and host portions of an IP address; not an IP+port combination.
MAC address — a hardware (Layer 2) address for a network interface; unrelated to IP addresses and ports.