A numerical identifier used to distinguish specific processes or services running on a networked device. What is this concept called?
Difficulty: Medium
About this MCQ
This Medium Computer Networks question asks: A numerical identifier used to distinguish specific processes or services running on a networked device. What is this concept called? The correct choice is D. Port number. Read the options below, commit to one, then use the explanation to see why that choice holds and why the others do not.
Computer Networks items like this one are written for Pakistan exams such as CSS, FPSC, PPSC, and NTS. The difficulty label is a hint about how much of the topic the stem assumes, not a score. Tags and exam names, when they are present, tell you where else the same idea is tested. Previous and next links stay in Computer Networks so you can continue the subject. Related questions point at nearby stems if you want another angle on the same idea.
Treat the explanation as part of the question, not a footnote. If you missed it, reread the stem against the correct option before you open the next Computer Networks item. A timed quiz is the same pool with a clock and a score. A past paper is a full sitting rather than this single question.
- A. WAN
Why not A: “WAN” does not fit this question. The answer is Port number.
- B. Proxy server
Why not B: “Proxy server” does not fit this question. The answer is Port number.
- C. Network latency
Why not C: “Network latency” does not fit this question. The answer is Port number.
- D. Port number ✓
Correct answer
D. Port number
Explanation
Port number (option D) is the accepted answer to “A numerical identifier used to distinguish specific processes or services running on a networked device. What is this concept called”. Option A (WAN) does not fit this question. Option B (Proxy server) does not fit this question. Option C (Network latency) does not fit this question. For this Computer Networks question, the accepted answer is Port number.
Source: Computer Networks Official Reference Guide
Tags: computer science, computer networks, networking, protocols
Submitted by: MCQsHub Editorial
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