单项选择题
Routers R1 and R2 are configured for HSRP as shown below：
Router R1：
interface ethernet 0
ip address 20.6.2.1 255.255.255.0
standby 35 ip 20.6.2.21
standby 35 priority 100
interface ethernet 1
ip address 20.6.1.1.2 255.255.255.0
standby 34 ip 20.6.1.21
Router R2：
interface ethernet 0
ip address 20.6.2.2 255.255.255.0
standby 35 ip 20.6.2.21
interface ethernet 1
ip address 20.6.1.1.1 255.255.255.0
standby 34 ip 20.6.1.21
standby 34 priority 100
You have configured the routers R1 & R2 with HSRP. While debugging router R2 you notice veryfrequent HSRP group state transitions. What is the most likely cause of this？（）
A.physical layer issues
B.no spanning tree loops
C.use of non-default HSRP timers
D.failure to set the command standby 35 preempt
相关考题
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多项选择题
WhichtwostatementsaretrueabouttheCiscoClassic（CBAC）IOSFirewallset？（）
A.It can be used to block bulk encryption attacks
B.It can be used to protect against denial of service attacks
C.Traffic originating from the router is considered trusted， so it is not inspected
D.Based upon the custom firewall rules， an ACL entry is statically created and added to theexisting ACL permanently
E.Temporary ACL entries that allow selected traffic to pass are created and persist for theduration of the communication session -
单项选择题
Refer to the exhibit. Host A has sent an ARP message to the default gateway IP address10.10.10.1. Which statement is true？（）
A.DSw1 will reply with the MAC address of the next AVF
B.DSw2 will reply with the MAC address of the next AVF
C.Because of the invalid timers that are configured， DSw1 will not reply
D.Because of the invalid timers that are configured， DSw2 will not reply
E.DSw1 will reply with the IP address of the next AVF
F.DSw2 will reply with the IP address of the next AVF -
多项选择题
This item contains several questions that you must answer. You can view these questions byclicking on the Questions button to the left. Changing questions can be accomplished by clickingthe numbers to the left of each question. In order to complete the questions， you will need to referto the SDM and the topology， neither of which is currently visible. To gain access to either thetopology or the SDM， click on the button to left side of the screen that corresponds to the sectionyou wish to access. When you have finished viewing the topology the SDM， you can return to yourquestions by clicking on the Questions button to the left. Off Shore Industries is a large worldwide sailing charter. The company has recently upgraded itsInternet connectivity. As a recent addition to the network engineering team， you have been taskedwith documenting the active Firewall configurations on the Annapolis router using the Cisco Routerand Security Device Manager （SDM） utility. Using the SDM output from Firewall and ACL Tasks under the Configure tab， answer the followingquestions： Which two statements would specify a permissible incoming TCP packet on a trusted interface inthis configuration？（）
A.The packet has a source address of 10.79.233.107
B.The packet has a source address of 172.16.81.108
C.The packet has a source address of 198.133.219.40
D.The destination address is not specified within the inspection rule SDM_LOW
