Exam Code: 400 101 pdf (Practice Exam Latest Test Questions VCE PDF)
Exam Name: CCIE Routing and Switching (v5.0)
Certification Provider: Cisco
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Q121. Which two statements about IOS and IOS XE are true? (Choose two.) 

A. IOS XE can upgrade and restart applications independently of IOS. 

B. Only IOS uses the FFM to provide separation between the control plane and the data plane. 

C. IOS XE provides improved functionality and an enhanced UI. 

D. Only IOS runs as a single daemon within the Linux OS. 

E. IOS XE provides additional system functions that run as multiple separate processes in the OS. 

Answer: A,E 


Q122. Which two statements are true about an EPL? (Choose two.) 

A. It is a point-to-point Ethernet connection between a pair of NNIs. 

B. It allows for service multiplexing. 

C. It has a high degree of transparency. 

D. The EPL service is also referred to as E-line. 

Answer: C,D 

Explanation: 

Ethernet private line (EPL) and Ethernet virtual private line (EVPL) are carrier Ethernet data services defined by the Metro Ethernet Forum. EPL provides a point-to-point Ethernet virtual connection (EVC) between a pair of dedicated user–network interfaces (UNIs), with a high degree of transparency. EVPL provides a point-to-point or point-to-multipoint connection between a pair of UNIs. The services are categorized as an E-Line service type, with an expectation of low frame delay, frame delay variation and frame loss ratio. EPL is implemented using a point-to-point (EVC) with no Service Multiplexing at each UNI (physical interface), i.e., all service frames at the UNI are mapped to a single EVC (a.k.a. all-to-one bundling). 

Reference: http://en.wikipedia.org/wiki/Ethernet_Private_Line 


Q123. Refer to the exhibit. 

If the network switch is configured as shown, which two statements about network traffic are true? (Choose two.) 

A. Traffic enters the shaper on a FIFO basis. 

B. Traffic enters the shaper on a weighted fair queueing basis. 

C. Drop behavior is random for traffic in excess of 6 Mbps. 

D. Voice traffic is given priority until it reaches 1.5 Mbps. 

E. Voice traffic is given priority until it reaches 6 Mbps. 

Answer: A,D 

Explanation: 

A. Serial interfaces at E1 (2.048 Mbps) and below use weighted fair queueing (WFQ) by default. Other interfaces use first-in first-out (FIFO) by default. 

D. Voice traffic is given priority up to 25% of the shape average value, which is 6000000, so 25% of 6 Mbps is 1.5 Mbps. 


Q124. Which technology can be used to secure the core of an STP domain? 

A. UplinkFast 

B. BPDU guard 

C. BPDU filter 

D. root guard 

Answer: D 

Explanation: 

Since STP does not implement any authentication or encryption to protect the exchange of BPDUs, it is vulnerable to unauthorized participation and attacks. Cisco IOS offers the STP Root Guard feature to enforce the placement of the root bridge and secure the core of the STP domain. 

STP root guard forces a port to become a designated port so that no switch on the other end of the link can become a root switch. If a port configured for root guard receives a superior BPDU, the port it is received on is blocked. In this way, STP root guard blocks other devices from trying to become the root bridge. 

STP root guard should be enabled on all ports that will never connect to a root bridge, for example, all end user ports. This ensures that a root bridge will never be negotiated on those ports. 

Reference: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Security/Baseline_Security/secur ebasebook/sec_chap7.html 


Q125. What two values are required to implement an EIGRP named configuration? (Choose two.) 

A. virtual-instance-name 

B. address-family 

C. router-id 

D. subnet-mask 

E. process-id 

Answer: A,B 


Q126. DRAG DROP 

Drag and drop each EIGRP element on the left to the corresponding definition on the right. 

Answer: 


Q127. DRAG DROP 

Drag and drop the NetFlow Export feature on the left to the NetFlow version that first supported it on the right. 

Answer: 


Q128. Which statement about the bgp soft-reconfig-backup command is true? 

A. It requires BGP to store all inbound and outbound updates. 

B. It overrides soft reconfiguration for devices that support inbound soft reconfiguration. 

C. When the peer is unable to store updates, the updates are implemented immediately. 

D. It provides soft reconfiguration capabilities for peers that are unable to support route refresh. 

E. It provides outbound soft reconfiguration for peers. 

Answer: D 


Q129. Which statement about NAT64 is true? 

A. It uses one-to-one mapping between IPv6 addresses and IPv4 addresses. 

B. It requires static address mapping between IPv6 addresses and IPv4 addresses. 

C. It can be used to translate an IPv6 network to another IPv6 network. 

D. It can be configured for stateless and stateful translation. 

Answer: D 


Q130. Which two technologies are supported by EIGRP? (Choose two.) 

A. clear-text authentication 

B. MD5 authentication 

C. stub routing 

D. multiple areas 

Answer: B,C 

Explanation: 

The IP Enhanced IGRP Route Authentication feature provides MD5 authentication of routing updates from the EIGRP routing protocol. The MD5 keyed digest in each EIGRP packet prevents the introduction of unauthorized or false routing messages from unapproved sources. The EIGRP stub routing feature improves network stability, reduces resource utilization, and simplifies the stub device configuration. Stub routing is commonly used in hub-and-spoke network topologies. In a hub-and-spoke network, one or more end (stub) networks are connected to a remote device (the spoke) that is connected to one or more distribution devices (the hub). The remote device is adjacent to one or more distribution devices. The only route for IP traffic to reach the remote device is through a distribution device. 

References: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-s/ire-15-s-book/ire-rte-auth.html http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-s/ire-15-s-book/ire-eigrp-stub-rtg.html