300-070 · Question #325
A dial plan uses six-digit numbers, in which the first two digits are a site code and the last four digits are an extension. Access codes must begin with a 7 or 8 and the second digit must be a 0…
The correct answer is C. [78][0159].XXXX D. [^0-69][^2-4678].XXXX. The dial plan requires access codes where the first digit is 7 or 8, and the second digit is 0, 1, 5, or 9, followed by four digits. Option C ([78][0159].XXXX) directly and explicitly matches this: [78] allows only 7 or 8; [0159] allows only 0, 1, 5, or 9; .XXXX matches any…
Question
A dial plan uses six-digit numbers, in which the first two digits are a site code and the last four digits are an extension. Access codes must begin with a 7 or 8 and the second digit must be a 0, 1, 5, or 9. Calls within a site are placed using just the four digit extensions. Which two route patterns will support this dial-plan requirement? (Choose two.)
Options
- A[^78][^234678].XXXX
- B[7-8][^0159].XXXX
- C[78][0159].XXXX
- D[^0-69][^2-4678].XXXX
- E[^0-6,9][2-4,6-8].XXXX
- F[7-8][234678].XXXX
How the community answered
(25 responses)- A4% (1)
- B12% (3)
- C60% (15)
- E20% (5)
- F4% (1)
Explanation
The dial plan requires access codes where the first digit is 7 or 8, and the second digit is 0, 1, 5, or 9, followed by four digits. Option C ([78][0159].XXXX) directly and explicitly matches this: [78] allows only 7 or 8; [0159] allows only 0, 1, 5, or 9; .XXXX matches any four following digits. Option D ([^0-69][^2-4678].XXXX) is equivalent: [^0-69] negates 0-6 and 9, leaving only 7 and 8; [^2-4678] negates 2, 3, 4, 6, 7, 8, leaving only 0, 1, 5, 9. Options A and B are incorrect because they allow or restrict wrong digits. Options E and F use incorrect digit sets for the second position.
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