Which route pattern is the best match for the range of 6000 to 6599?

The correct answer is E. 6[0-5]XX. The pattern 6[0-5]XX matches exactly the range 6000–6599. Breaking it down: '6' is a literal digit, '[0-5]' matches any single digit from 0 through 5 (the hundreds digit), and 'XX' matches any two digits (00–99). This covers 6000–6099, 6100–6199, …, 6500–6599. The other options…

Gateway and Dial Plan

Question

Options

A65XX
B60XX
C6[05]XX
D6XXX
E6[0-5]XX

How the community answered

(39 responses)

B
5% (2)
C
10% (4)
D
3% (1)
E
82% (32)

Explanation

The pattern 6[0-5]XX matches exactly the range 6000–6599. Breaking it down: '6' is a literal digit, '[0-5]' matches any single digit from 0 through 5 (the hundreds digit), and 'XX' matches any two digits (00–99). This covers 6000–6099, 6100–6199, …, 6500–6599. The other options are too narrow or too broad: 65XX covers only 6500–6599; 60XX covers only 6000–6099; 6[05]XX covers only 6000–6099 and 6500–6599 (skipping 6100–6499); and 6XXX matches the entire range 6000–6999.

Topics

#route patterns#wildcard matching#digit ranges#dial plan

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