070-505 Free Dumps Study Materials
Question 1: You are creating a Windows Forms application by using the .NET Framework 3.5.
The application stores a list of part numbers in an integer based array as shown in the following code
segment (Line numbers are included for reference only)
01 var parts = new int[]
02 { 105, 110, 110, 235, 105, 03 135, 137, 205, 105, 100, 100 } ;
03
04
05 foreach (var item in results) {
06 tbResults.Text.+= item + "\r\n";
07 }
You need to use a LINQ to Objects query to perform the following tasks:
- Obtain a list of duplicate part numbers
- Order the list by part numbers
- Provide the part numbers and the total count of part numbers in the results
Which code segment should you insert at line 04 ?
A. var results = (from n in parts orderby n group n by n into n1 select new { n1.Key, count = n1.Count() })
Distinct();
B. var results = (from n in parts group n by n into n1 where n1.Count() > 1 orderby n1 select new
{ n1.Key, count = n1.Count() });
C. var results = (from n in parts orderby n group n by n into n1 where n1.Count() > 1 select n1);
D. var results = (from n in parts orderby n group n by n into n1 where n1.Count() > 1 select new { n1.Key,
count = n1.Count() });
Correct Answer: D
