This statement:
```
preg_match("/\b(car[[:alpha:]]+)\b/i", $string)
```
a. searches for any word beginning with the pattern "car"
b. searches for any word ending with the pattern "car"
c. searches specifically for the whole word "car"
d. searches for any lowercase string that matches the pattern "car"
a. searches for any word beginning with the pattern "car"
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A mixed cell reference:
A) causes a potential error. B) occurs when a formula directly or indirectly refers to the cell containing the formula. C) contains absolute or relative cell references, but not both. D) contains both an absolute and a relative cell reference.
Which of the following is not true about BGP?
a. It's a universal protocol. b. BGP Internet routers comply with the same standard. c. The steps to configure BGP on Juniper routers are the same as on Cisco routers. d. All the above are true.