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Cisco CCNA in 60 Days

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Day 57

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1. HSRP routers exchange the following three types of messages:

Question 1 of 27

2. What does the * indicate in the output below?

R2#show ip route 172.16.100.0 255.255.255.0Routing entry for 172.16.100.0/24Known via “eigrp 150”, distance 90, metric 2172416, type internalRedistributing via eigrp 150Last update from 150.1.1.1 on Serial0/0, 00:01:55 agoRouting Descriptor Blocks:* 150.1.1.1, from 150.1.1.1, 00:01:55 ago, via Serial0/0Route metric is 2172416, traffic share count is 1Total delay is 20100 microseconds, minimum bandwidth is 1544 KbitReliability 255/255, minimum

Question 2 of 27

3. When a switch port is configured in passive mode, it will negotiate with an LACP channel only if it receives another LACP packet.

Question 3 of 27

4. STP BPDUs are sent ever __ seconds.

Question 4 of 27

5. HSRP version 1 routers communicate by sending messages to Multicast group address ____ using UDP port ____.

Question 5 of 27

6. Which of the below commands will configure a passive interface for Loopback 0?

Question 6 of 27

7. Two HSRP gateways are configured with priorities 100 and the other is 110. Which one will be elected primary gateway?

Question 7 of 27

8. What does the below HSRP virtual MAC address tell you?

Gateway-1#show standby[Trunkated]Standby router is 192.168.1.2, priority 100 (expires in 9.019 sec)Priority 105 (configured 105)IP redundancy name is “hsrp-Fa0/0-1” (default)State is Active2 state changes, last state change 00:09:45Virtual IP address is 172.16.1.254Active virtual MAC address is 0000.0c07.ac02Local virtual MAC address is 0000.0c07.ac02 (v1 default)Hello time 3 sec, hold time 10 secNext hello sent in 2.423 secsPreemption disabledActive router is local

Question 8 of 27

9. The STP port value for a 100Mbps interface is?

Question 9 of 27

10. When determining the RID, EIGRP will select the _____ IP address that is configured on the router.

Question 10 of 27

11. Each EtherChannel can consist of how many ports in total?

Question 11 of 27

12. Root Guard prevents a ____ port from becoming a _____ port?

Question 12 of 27

13. Two connected interfaces using PAgP Auto mode will form an EtherChannel.

Question 13 of 27

14. ________ BPDUs are sent by LAN switches and are used to communicate and compute the Spanning Tree topology.

Question 14 of 27

15. The STP timers below have which values:

Hello/Forward Delay/Max Age

Question 15 of 27

16. Which of the below are true for the EIGRP K values?

Question 16 of 27

17. STP uses the exchange of BPDUs to determine the network topology, which is determined by the following three variables:

Question 17 of 27

18. HSRP routers exchange the following three types of messages:

Question 18 of 27

19. Enhanced IGRP Hello packets are sent to the Link Local Multicast group address _______.

Question 19 of 27

20. BPDU Guard disables STP on an interface.

Question 20 of 27

21. By default, HSRP messages are sent with the plain text key string “cisco” as a simple method to authenticate HSRP peers.

Question 21 of 27

22. In order to set a switch to become the STP root you need to set it's priority to the highest possible value.

Question 22 of 27

23. Connected interfaces using PAgP modes Desirable on one side and Auto on the other will form an EtherChannel.

Question 23 of 27

24. RSTP port roles include?

Question 24 of 27

25. HSRP allows ____ physical gateways that are configured as part of the same HSRP group to share the same virtual gateway address.

Question 25 of 27

26. You want a switch to become the root should the primary switch fail. The primary switch is set to 0. Which value do you enter on the secondary switch?

Question 26 of 27

27. To copy the config from DRAM to NVRAM you issue which command?

Question 27 of 27