CCNP: Building Cisco Multilayer Switched Networks Study Guide (642-811)

1. 

Which of the following is used to search the bridging tables in a 3550 switch?

1. CAM

2. DCAM

3. TCAM

4. Bridging database

2. 

Which switching fabric is used by the 2950 switch series?

1. Dynamic

2. Shared memory

3. Crossbar

4. Bus

3. 

What does the term non-blocking mean when referring to an Ethernet switch?

1. The switch has dual power supplies.

2. The switch has sufficient capacity to forward data without delay.

3. The switch has enhanced management to allow frames to pass through undelayed.

4. The switch has more than one bus.

4. 

What does the TCAM on a 3550 switch do?

1. Searches for matches on '1s,' '0s,' and 'don't cares'

2. Searches for matches on binary '1s' and '0s'

3. Searches for the longest prefix match

4. Searches for the match with the most bits

5. 

What type of buffer creates buffers as needed?

1. Particle buffering

2. Virtual buffering

3. Contiguous buffering

4. Ring buffering

6. 

What command is used to display the system buffers in a 3550 switch?

1. show memory

2. show system-buffers

3. show buffers

4. show buffers system

7. 

What command is used to stop all debugging activity on an IOS-based switch?

1. stop debug all

2. no debug all

3. disable debug all

4. undebug all

8. 

What does CMS stand for?

1. Cisco Management Suite

2. Cluster Management Session

3. Cluster Management Suite

4. Cisco Management Session

9. 

What are the two chassis options available with the 4000 series switches?

1. 4000 and 4003

2. 4003 and 4006

3. 4000 and 4006

4. 4000 and 4500

10. 

In the 2950 switch range, where is the VLAN information held?

1. In flash, in its own file called vlan.dat

2. In ROM, in its own file called vlan.dat

3. In flash, in the config.text file

4. In the VTP server

11. 

What can a TCAM process be used for? (Choose the best answer.)

1. Layer 2 lookups

2. Layer 3 lookups

3. Layer 2 and Layer 3 lookups

4. Layer 2, Layer 3, and ACL lookups

12. 

If a switch is running 'hybrid IOS,' what do you understand it to be using?

1. Software that is a combination of CatOS and IOS

2. CatOS on the switch and IOS on the routing module

3. Software that has commands from both operating systems running in tandem

4. IOS on the switch and CatOS on the router

13. 

What does EI mean when referring to 2950 series IOS?

1. Enterprise Image

2. Extended Image

3. Enhanced Image

4. Excellent Image

14. 

Which of the following is supported inside the EI IOS on a 2950 switch? (Choose all that apply.)

1. IGMP snooping

2. DSCP for 13 values

3. 255 VLANs

4. 802.1w

15. 

Which command is used to show the non-configured entries in a CAM table on a 2950 series switch?

1. show cam dynamic

2. show bridge dynamic

3. show dynamic cam

4. show cam

16. 

What type of switching fabric exists inside a 2950G-24-DC switch?

1. Distributed shared bus

2. Crosspoint

3. Shared memory

4. Distributed shared memory

17. 

What is a particle buffer?

1. A buffer made up from small particles of memory

2. A small piece of a larger buffer

3. A buffer designed to handle frame particles

4. A group of contiguous buffer

18. 

What is a CAM?

1. A special memory block where the location of the data is related to its type

2. Another name for the bridging table

3. A special table where data is grouped for easy access

4. A special memory block where data is accessed using fast pointer lookups

19. 

Why are system buffers made in so many different sizes?

1. Because different systems allow different frames to be received

2. Because different interfaces support different MTUs

3. Because the buffers can be used as particles to create larger buffers

4. Because buffers have to be discarded once they are used

20. 

The Network Analysis Module on the 6500 series switches can be used to do what? (Choose all that apply.)

1. Remotely gather traffic statistics.

2. Remotely configure QoS options.

3. Remotely change passwords.

4. Remotely measure traffic parameters.

1. 

C The 3550 uses a TCAM for searching the forwarding tables.

2. 

B The 2950 switch uses a shared memory switching fabric.

3. 

B Non-blocking switches have sufficient built-in capacity to ensure that frames are forwarded without delay being introduced by waiting for fabric availability.

4. 

A TCAM looks for matches of '1s' '0s' and 'don't cares.'

5. 

A Particle buffering uses small blocks of memory, called particles, to create buffers as needed.

6. 

C The command show buffers is used to display both the system and interface buffers in IOS.

7. 

B, D The command disable debug all is used to stop all debugging activity on an IOS-based switch.

8. 

C CMS is the Cluster Management Suite.

9. 

B The two chassis options currently available are the 4003 and the 4006.

10. 

A VLAN information is held in a separate database, and stored under the name vlan.dat in flash.

11. 

D TCAM lookup can be performed on any structure where addresses contain masks, including Layer 2, Layer 3, and ACL lookups.

12. 

B Switches are said to be running hybrid software when they have CatOS on the switch and IOS on the router.

13. 

C EI is the abbreviation of Enhanced Image.

14. 

A, B, C, D EI supports all of the possible options.

15. 

A The command show cam dynamic shows the dynamically discovered MAC addresses.

16. 

D The 3550 series switches all use a distributed shared-memory switching architecture.

17. 

A A particle buffer is a logically contiguous buffer constructed from particles of memory.

18. 

A With Content Addressable Memory (CAM), a precise relationship exists between the information in the data and its location in the data store.

19. 

B Different interfaces on a router support different MTUs. Different buffer sizes are created at switch-on to support the different MTUs.

20. 

A, D The NAM is a remote monitoring and analysis tool used with the 6500 series switches. It does not perform remote configuration changes.