CCNA Service Provider Practice Test Results

Question 1
31% answer correctly
Which of the following about STP operations is true?
One root bridge exists per collision domain.
One root port is established per root bridge.
One designated port is defined per segment.
Non-designated ports are set in the forwarding state.
One root port exists per broadcast domain.
Question 2
56% answer correctly
Using VLSM, how many /30 subnets can be derived from a single /27 Class C subnet?
1
16
4
8
2
Question 3
42% answer correctly
Given the CIDR address range of 200.165.160.0 to 200.165.191.255, what is the CIDR block?
200.165.160.0/20
200.165.160.0/19
200.165.160.0/18
200.165.160.0/17
200.165.160.0/21