Discussion
The number of cross-points needed for 10 lines in a cross-point switch which is full duplex in nature and there are no self connection, is
Answer: B
Correct answer: 45
One full-duplex line serves both directions between a pair, and no line joins a station to itself:
\[ \binom{10}{2} = 45 \]
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development