| Let’s test your skill in binary conversions, | | | | queues exist by default, and how many packets |
| OSPF ABR and ASBRs, and other vital Cisco | | | | can each queue hold? |
| certification exam topics! | | | | Answer: There are four default queues - High |
| CCNA and CCENT certification: | | | | (20), Medium (40), Normal (60), and Low (80). |
| There is a range of addresses reserved for | | | | These are configurable. For example, the following |
| multicasting. Take the absolute highest number in | | | | command will double the Normal queue's capacity |
| that range and convert it to a binary string. | | | | while leaving the others unchanged. Even if you're |
| Answer: The range is 224.0.0.0 - 239.255.255.255; | | | | just changing one queue's limit, you still have to |
| the binary representation for that last address is | | | | name a value for each queue. |
| 11101111 11111111 11111111 11111111. | | | | Below, I've used IOS Help to show the order in |
| CCNP / BSCI: | | | | which the queue sizes are defined. The bolded |
| What command will show whether a router's | | | | command is the final command. |
| neighbors are or are not an ABR or ASBR? | | | | R3(config)#priority-list 1 queue-limit ? |
| Answer: show ip ospf border-routers. | | | | High limit |
| CCNP / BCMSN: | | | | R3(config)#priority-list 1 queue-limit 20 ? |
| What command places a physical switch port into | | | | Medium limit |
| a logical bundling of ports? | | | | R3(config)#priority-list 1 queue-limit 20 40 ? |
| Answer: To place ports into an Etherchannel, use | | | | Normal limit |
| the port-channel command. | | | | R3(config)#priority-list 1 queue-limit 20 40 120 ? |
| CCNP / ISCW Exam: | | | | Lower limit |
| What is "signature tuning"? | | | | R3(config)#priority-list 1 queue-limit 20 40 120 80 |
| Answer: Signature tuning is simply the process of | | | | ? |
| editing a signature, most likely changing the action | | | | R3(config)#priority-list 1 queue-limit 20 40 120 80 |
| taken when there's a signature match. | | | | Look for more CCNA, CCENT, and CCNP practice |
| CCNP / ONT Exam: | | | | exam questions on my website, and on this one |
| You're configuring Priority Queueing. How many | | | | as well! |