A.HMAC-SHA
B.HMAC-MD5
C.CBC-DES
D.AES
E.3DES
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Refer to the exhibit. Based on the configuration shown, which queuing mechanism has been configured on interface serial 1/0?（）
A.PQ
B.CQ
C.WFQ
D.LLQ
E.CBWFQ
A.ICMP path echo
B.UDP echo
C.ICMP path jitter
D.Application Performance Monitor
E.TCP connect
A.Only the FTP PUT operation type is supported.
B.Active mode is supported.
C.Passive FTP transfer modes are supported.
D.FTP URL specified for the FTP GET operation is not supported.
Refer to the exhibit. A network engineer received a sudden request to prioritize voice over his Cisco network and he has decided to leverage the AutoQoS feature. Based on the output shown, which two tasks need to be performed prior to issuing the autoqos voip command in this router? （）
A.Enable Cisco Express Forwarding.
B.Enable fast switching.
C.Delete all policy maps.
D.Remove service-policy commands from interface serial1/0.
E.Delete all the currently configured class maps.
A.1
B.2
C.4
D.6
E.8
Refer to the exhibit. This exhibit shows the NAT configuration for Router A and the output for a ping issued from device 171.68.200.48 and destined to 172.16.47.142. Based on this information， what change must be made to Router A in order for the ping to work？（）
A.reload the router
B.clear the route cache
C.add a static route
D.configure IP as classless
E.load a newer IOS image
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How should arouter that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?（）
what is the advantage of policing opposite to shaping？
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2.The routers cannot establish an adjacency relationship on their common Ethernet link.The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2.Based on the information in the graphic,what is the cause of this problem?（）
DHCP SERVER在給一個(gè)網(wǎng)段設(shè)置POOL時(shí)，該網(wǎng)段路由器接口地址能不能放入POOL，能why，不能why。
當(dāng)將多個(gè)交換機(jī)加入到MST region當(dāng)中會(huì)發(fā)生什么（what happen）？
A default Frame Relay WAN is classified as what type of physical network?（）
The following configuration line was added to router R1 Access-list 101 permit ip 10.25.30.00.0.0.255 any What is the effect of this access list configuration?（）
As a CCNA candidate,you must have a firm understanding of the IPv6 address structure.Refer to IPv6 address,could you tell me how many bits are included in each filed?（）
Local Preference？
What is the three main step of using the QoS feature with MQC command line interface？