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400-101 Product Description:
Exam Number/Code: 400-101 vce
Exam name: CCIE Routing and Switching (v5.0)
n questions with full explanations
Certification: Cisco Certification
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2016 May 400-101 Study Guide Questions:

Q221. What is the range of addresses that is used for IPv4-mapped IPv6 addresses? 

A. 2001. db9. . /32 

B. 2001. db8. . /32 

C. 2002. . /16 

D. . . ffff. /16 

E. . . ffff. 0. 0/96 

Answer: E 


IPv4-Mapped Addresses FFFF:0:0/96 are the IPv4-mapped addresses [RFC4291]. Addresses within this block should not appear on the public Internet. 

Reference: https://tools.ietf.org/html/rfc5156 

Q222. Which IPv6 tunneling type establishes a permanent link between IPv6 domains over IPv4? 

A. IPv4-compatible tunneling 

B. ISATAP tunneling 

C. 6to4 tunneling 

D. manual tunneling 

Answer: D 


A manually configured tunnel is equivalent to a permanent link between two IPv6 domains over an IPv4 backbone. The primary use is for stable connections that require regular secure communication between two edge routers or between an end system and an edge router, or for connection to remote IPv6 networks. 

Reference: http://www.cisco.com/c/en/us/td/docs/ios/ipv6/configuration/guide/12_4t/ipv6_12_4t_book/i p6-tunnel.html 

Q223. What is the main component of Unified MPLS? 

A. Multiple IGPs in the network are used, where the loopback IP addresses of the PE routers are aggregated on the area border routers. 

B. Confederations are used to provide scalability. 

C. The loopback prefixes from one IGP area are redistributed into BGP without changing the next hop. 

D. The ABR is a BGP route reflector and sets next-hop to self for all reflected routes. 

Answer: D 


Since the core and aggregation parts of the network are integrated and end-to-end LSPs are provided, the Unified MPLS solution is also referred to as "Seamless MPLS." New technologies or protocols are not used here, only MPLS, Label Distribution Protocol (LDP), IGP, and BGP. Since you do not want to distribute the loopback prefixes of the PE routers from one part of the network into another part, you need to carry the prefixes in BGP. The Internal Border Gateway Protocol (iBGP) is used in one network, so the next hop address of the prefixes is the loopback prefixes of the PE routers, which is not known by the IGP in the other parts of the network. This means that the next hop address cannot be used to recurse to an IGP prefix. The trick is to make the ABR routers Route Reflectors (RR) and set the next hop to self, even for the reflected iBGP prefixes. In order for this to work, a new knob is needed. 

Reference: http://www.cisco.com/c/en/us/support/docs/multiprotocol-label-switching-mpls/mpls/116127-configure-technology-00.html 

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Q224. Which three options are sources from which a SPAN session can copy traffic? (Choose three.) 

A. ports 

B. EtherChannels 


D. subnets 

E. primary IP addresses 

F. secondary IP addresses 

Answer: A,B,C 


. SPAN Sources 

The interfaces from which traffic can be monitored are called SPAN sources. Sources designate the traffic to monitor and whether to copy ingress, egress, or both directions of traffic. SPAN sources include the following: 

. Ethernet ports 

. Port channels 

. The inband interface to the control plane CPU — You can monitor the inband interface only from the default VDC. Inband traffic from all VDCs is monitored. 

. VLANs — When a VLAN is specified as a SPAN source, all supported interfaces in the VLAN are SPAN sources. 

. Remote SPAN (RSPAN) VLANs 

. Fabric port channels connected to the Cisco Nexus 2000 Series Fabric Extender . 

Satellite ports and host interface port channels on the Cisco Nexus 2000 Series Fabric Extender 

— These interfaces are supported in Layer 2 access mode, Layer 2 trunk mode, and Layer 3 mode. 

Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/system_management/configuration/guide/sm_nx_os_cg/sm_14span.html#wp1239492


Q225. Which two statements about device access control are true? (Choose two.) 

A. The AUX port is displayed as type tty in the output of the show line command. 

B. VTY lines are associated with physical interfaces on a network device. 

C. MPP restricts device-management access to interfaces that are configured under the control plane host configuration. 

D. The enable password command sets an MD5 one-way encrypted password. 

E. The console port supports hardware flow control 

Answer: C,E 


Drag each OSPF route-type identifier on the left to its description on the right. 



Download actual tests 400-101:

Q227. Which three responses can a remote RADIUS server return to a client? (Choose three.) 

A. Reject-Challenge 

B. Access-Reject 

C. Accept-Confirmed 

D. Access-Accept 

E. Access-Challenge 

F. Reject-Access 

Answer: B,D,E 

Q228. Refer to the exhibit. 

Which technology can be used on the switch to enable host A to receive multicast packets for but prevent host B from receiving them? 

A. IGMP filtering 

B. MLD snooping 

C. IGMP snooping 

D. MLD filtering 

Answer: C 


IGMP snooping is the process of listening to Internet Group Management Protocol (IGMP) network traffic. The feature allows a network switch to listen in on the IGMP conversation between hosts and routers. By listening to these conversations the switch maintains a map of which links need which IP multicast streams. Multicasts may be filtered from the links which do not need them and thus controls which ports receive specific multicast traffic. 


Drag and drop the QoS requirement on the left to the correct QoS technology on the right. 



Drag each IS-IS command on the left to its effect on the right. 


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