Update Cisco CCIE 400-101 certification dumps

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Share some CCIE 400-101 exam questions and answers below.
Which two statements about DMVPN with NHRP are true? (Choose two) 
A. NHRP shortens the configuration of the hub router. 
B. NHRP dynamically provides information about the spoke routers to the hub. 
C. NHRP disables multicast 
D. The hub router uses NHRP to initiate the GRE tunnel with spokes. 
E. The spoke routers act as the NHRP servers. 
Answer: AB

Which TCP features allows a client to request a specific packet that was lost? 
A. flow control 
B. sliding window 
C. fast recovery 
D. selective acknowledgment 
Answer: D

Which two statements about route redistribution default metrics are true? (Choose two) 
A. When EIGRP is redistributed into OSPF as E2, it has a default metric of 20. 
B. When an IGP is redistributed into RIP, it has a default metric of 1. 
C. When an IGP is redistributed into OSPF, it has a default metric of 110. 
D. When an IGP is redistributed into IS-IS, it has a default metric of 115. 
E. When an BGP is redistributed into OSPF, it has a default metric of 1. 
Answer: A, E

Refer to the Exhibit. 



Which kind of ICMPv6 packet is shown in the output? 
A. neighbor advertisement 
B. neighbor solicitation 
C. router discovery 
D. time exceeded 
E. router advertisement 
Answer: B

Refer to the exhibit. 



You are configuring Router1 and Router2 for L2TPv3 tunneling. 
Which two additional configurations are required to enable Router 1 and Router 2 to establish the tunnel? (Choose two) 
A. Cisco Discovery Protocol must be enabled on interface FastEthernet 1/0 on Router 1 
B. An IP address must be configured on interface FastEthernet 1/0 on Router 1 
C. Cisco Express Forwarding must be disabled on Router 1 
D. Loopback 0 on Router 1 must be advertised to Router 2 
E. Router1 must be configured to encapsulate traffic by using L2TPv3 under the pseudowire-class R1toR2 
Answer: D ,E

Which feature can be used to block traffic from one host to another within one VLAN on a Layer 2 switch? 
A. port security 
B. dot1x 
C. access list 
D. protected ports 
Answer: D

Which IPv6 migration method allows IPv4-only devices to communicate with IPv6-only devices? 
A. GRE tunnel 
B. dual stack 
C. ISATAP tunnel 
D. NAT64 
Answer: D

Drag and drop BGP attribute on the left to the correct category on the right. Not all options will be used. 



Answer: 




Which technology can be used to prevent flooding of IPv6 multicast traffic on a switch? 
A. IGMP snooping 
B. IGMP filtering 
C. MLD snooping 
D. MLD filtering 
Answer: C

Which two statements about IP source guard are true? (Choose two.) 
A. it must be applied to EtherChannel port members. 
B. It is available only on L2 ports. 
C. It is supported in software only. 
D. It is not supported on private VLANS. 
E. It blocks DHCP packets. 
Answer: B, D

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