Types of Questions You ll Find on the CCNA Exam

Types of Questions You'll Find on the CCNA Exam

The CCNA 640-801 exam includes the following test formats:

• Multiple-choice single answer

• Multiple-choice multiple answer

• Router and switch simulations

• Drag-and-drop

The Multiple-Choice Format

The Cisco exam, at least as of this writing, always tells you how many right answers to pick, so you don't have to worry about a question that states "pick all the correct answers."

Sample

1. A receiving host has failed to receive all the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?

   1. Send a different source port number.

   2. Restart the virtual circuit.

   3. Decrease the sequence number.

   4. Decrease the window size.

The correct answer is D. A receiving host can control the transmitter by using flow control (TCP uses windowing by default). By decreasing the window size, the receiving host can slow down the transmitting host so the receiving host does not overflow its buffers.

Simulations

In addition to multiple-choice and fill-in response questions, Cisco Career Certifications exams may include performance simulation exam items. Although it's imperative that you understand and can fix the configurations in the simulations questions, it isn't possible to have the simulations in this book.

Drag and Drop

Here is an example of a drag-and-drop question:

1. The local router's routing has been enabled with these commands:

    Local(config)# ip route 0.0.0.0 0.0.0.0 192.168.10.1 Local(config)# ip route 172.16.0.0 255.255.255.0 192.168.20.2 Local(config)# ip route 172.16.0.0 255.255.0.0 192.168.30.3 

   Match the destination IP address in the left column to the proper next hop address on the right:

   Open table as spreadsheet

   	Next hop 192.168.10.1	Next hop 192.168.20.2	Next hop 192.168.30.3
   172.16.10.10
   172.16.0.33
   172.44.98.1
   172.16.41.2
   172.16.0.23
   172.2.5.6

   The answer would look like this:

   Open table as spreadsheet

   Next hop 192.168.10.1	Next hop 192.168.20.2	Next hop 192.168.30.3
   172.2.5.6	172.16.0.33	172.16.10.10
   172.44.98.1	172.16.0.23	172.16.41.2

In this case, you write the IP address under the appropriate hop address. The top route is a default route, so any destination IP address that doesn't match the second and third line will be sent to 192.168.10.1. The difference between the second and second line is the subnet mask. The second static route has a /24 mask, which makes the second octet the subnet address. Because the third static route has a /16 mask, the third octet isn't part of the subnet. Once you determine that the third octet has to be a zero to match the second static route, the rest of the answers fall into place.