What is the range of port numbers for well-known (system) ports in TCP/IP? MCQ with Answer and Explanation

Question
What is the range of port numbers for well-known (system) ports in TCP/IP?
A. 1 to 255
B. 1024 to 49151
C. 0 to 1023
D. 49152 to 65535
Answer: Option C
Solution (By JKSSB Mock Tests)
Well-known ports are 0-1023, registered ports 1024-49151, and dynamic/private ports 49152-65535.
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Practice More Computer Networking Questions

Question #1
What does an IPv4 address configuration use to determine the broadcast address for a specific subnet?
A. The external DNS resolution system
B. The network mask and host bit combinations
C. The MAC registration lookup
D. The loopback hardware interface
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Correct Answer: Option B

Explanation:
Setting all host bits of an IP network block to binary 1 yields the specific broadcast address used to send data to all devices on that subnet.
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Question #2
Which networking utility uses ICMP echo requests to verify if a remote host target is online and measure round-trip network response times?
A. TRACERT
B. PING
C. NSLOOKUP
D. IPCONFIG
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Correct Answer: Option B

Explanation:
The ping command utilizes ICMP Echo Request and Echo Reply packets to test basic network connectivity and record latency metrics.
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Question #3
Which of the following is a private IP address range?
A. 203.0.113.0 to 203.0.113.255
B. 10.0.0.0 to 10.255.255.255
C. 172.15.0.0 to 172.31.255.255
D. 192.168.0.0 to 192.168.255.255
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Correct Answer: Option B

Explanation:
10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16 are private IP ranges. 10.x.x.x is valid.
This question belongs to: Computer Computer Networking
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