多項選擇題Which two statements are true about Unicast Reverse Path Forwarding Loose Mode?()

A.It is used in multihome network scenarios.
B.It can be used with BGP to mitigate DoS and DDoS.
C.It does not need to have CEF enabled.
D.It is enabled via the interface level command ip verify unicast reverse-path.
E.It cannot be used with "classification" access lists.


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1.單項選擇題What does Cisco recommend when you are enabling Cisco IOS IPS?()

A.Do not enable all the signatures at the same time.
B.Do not enable the ICMP signature.
C.Disable the Zone-Based Policy Firewall because it is not compatible with Cisco IOS IPS.
D.Disable CEF because it is not compatible with Cisco IOS IPS. .

2.多項選擇題Which three statements are true about TACACS+?()

A.It is a Cisco proprietary protocol.
B.It runs on TCP port 59. .
C.Authentication and authorization are done at different stages.
D.TACACS+ encrypts the entire body of the packet, but leaves a standard TACACS+ header.
E.It is an industry standard protocol.
F.TACACS+ encrypts both the entire body of the packet and the TACACS+ header.

3.單項選擇題What is Phantom RP used for?()

A.it is used for load balancing in bidirectional PIM
B.it is used for redundancy in bidirectional PIM
C.it is used for redundancy in PIM-SM
D.it is used for load balancing in PIM-SM

4.單項選擇題

Refer to the exhibit. Look at the command output. What can you use to prevent this behavior? ()

A. UDLD  (UniDirectional Link Detection)
B. spanning-tree loopguard
C. VTP mode transparent
D. switchport mode desirable

5.單項選擇題Which IGMPv2 message contains a non-zero "Max Response Time"?()

A.Membership Query
B.Membership Report
C.Membership Delay
D.Backward Compatible IGMPv1 Report Message

6.單項選擇題Apart from interdomain multicast routing, what else is MSDP used for?()

A.Source Specific Multicast and IGMPv2
B.Announcing multicast sources to BGP speakers
C.Anycast RP
D.Intradomain multicast routing

7.單項選擇題

Refer to the exhibit. Look at the command output. Assume that there is no other path, and the configuration is correct. What would be the consequences of this situation?()

 

A. Users in SW1 can ping SW2 but not vice versa.
B. Users in SW2 can ping SW1 but not vice versa.
C. Users in SW1 and SW2 can ping each other.
D. Users in SW1 and SW2 cannot ping each other.

8.單項選擇題How is RPF used in multicast routing?()

A.to prevent multicast packets from looping
B.to prevent PIM packets from looping
C.to instruct PIM where to send a (*, G) or (S, G) join message
D.to prevent multicast packets from looping and to instruct PIM where to send a (*, G) or (S, G) joinmessage

10.單項選擇題

Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch?()

A. spanning-tree misconfiguration
B. speed mismatch configuration
C. cabling problem
D. configuration problem

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