Cisco 400-101 ExamCCIE Routing and Switching (v5.0)

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400-101 practice exam(91 to 100) for IT learners: Apr 2017 Edition

Exam Code: 400-101 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: CCIE Routing and Switching (v5.0)
Certification Provider: Cisco
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2017 Apr 400-101 exam

Q91. Which three statements about IPsec VTIs are true? (Choose three.) 

A. IPsec sessions require static mapping to a physical interface. 

B. They can send and receive multicast traffic. 

C. They can send and receive traffic over multiple paths. 

D. They support IP routing and ACLs. 

E. They can send and receive unicast traffic. 

F. They support stateful failover. 

Answer: B,D,E 


Q92. Which two mechanisms provide Cisco IOS XE Software with control plane and data plane separation? (Choose two.) 

A. Forwarding and Feature Manager 

B. Forwarding Engine Driver 

C. Forwarding Performance Management 

D. Forwarding Information Base 

Answer: A,B 

Explanation: 

Control Plane and Data Plane Separation 

IOS XE introduces an opportunity to enable teams to now build drivers for new Data Plane ASICs outside the IOS instance and have them program to a set of standard APIs which in turn enforces Control Plane and Data Plane processing separation. IOS XE accomplishes Control Plane / Data Plane separation through the introduction of the Forwarding and Feature Manager (FFM) and its standard interface to the Forwarding Engine Driver (FED). FFM provides a set of APIs to Control Plane processes. In turn, the FFM programs the Data Plane via the FED and maintains forwarding state for the system. The FED is the instantiation of the hardware driver for the Data Plane and is provided by the platform. 

Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-xe-3sg/QA_C67-622903.html 


Q93. If two OSPF type 3 prefixes have the same metric, and are within the same process, which prefix(es) are installed into the routing table? 

A. The route whose originator has the lower router ID. 

B. Both routes are installed. 

C. The route whose originator has the higher router ID. 

D. The first route that is learned. 

Answer:

Explanation: 

OSPF allows multiple equal-cost paths to the same destination. Since all link-state information is flooded and used in the SPF calculation, multiple equal cost paths can be computed and used for routing, and each route will be installed in the routing table. 


Q94. Refer to the exhibit. 

What does "(received-only)" mean? 

A. The prefix 10.1.1.1 can not be advertised to any eBGP neighbor. 

B. The prefix 10.1.1.1 can not be advertised to any iBGP neighbor. 

C. BGP soft reconfiguration outbound is applied. 

D. BGP soft reconfiguration inbound is applied. 

Answer:

Explanation: 

When you configure bgp soft-configuration-inbound, all the updates received from the neighbor will be stored unmodified, regardless of the inbound policy, and these routes appear as “(received-only).” 


Q95. Which two statements about the BGP community attribute are true? (Choose two.) 

A. Routers send the community attribute to all BGP neighbors automatically. 

B. A router can change a received community attribute before advertising it to peers. 

C. It is a well-known, discretionary BGP attribute. 

D. It is an optional transitive BGP attribute. 

E. A prefix can support only one community attribute. 

Answer: B,D 

Explanation: 

A community is a group of prefixes that share some common property and can be configured with the BGP community attribute. The BGP Community attribute is an optional transitive attribute of variable length. The attribute consists of a set of four octet values that specify a community. The community attribute values are encoded with an Autonomous System (AS) number in the first two octets, with the remaining two octets defined by the AS. A prefix can have more than one community attribute. A BGP speaker that sees multiple community attributes in a prefix can act based on one, some or all the attributes. A router has the option to add or modify a community attribute before the router passes the attribute on to other peers. 

Reference: 

http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/28784-bgp-community.html 


Most recent 400-101 test engine:

Q96. Which two statements about a network running MPLS VPN with IS-IS IGP are true? (Choose two.) 

A. IS-IS traffic engineering uses wide metric TLV type 135 with an up/down bit to define a leaked route. 

B. IS-IS traffic engineering uses wide metric TLV type 128 with an internal/external bit and an up/down bit to define a leaked route. 

C. IS-IS traffic engineering uses wide metric TLV type 130 with an internal/external bit and an up/down bit to define a leaked route. 

D. If the IS-IS up/down bit is set to 1, the leaked route originated in the L1 area. 

E. The MPLS VPN IS-IS core is inherently protected against IP-based attacks. 

Answer: A,E 


Q97. Refer to the exhibit. 

Routers R1 and R2 are configured as shown, and traffic from R1 fails to reach host 209.165.201.254. 

Which action can you take to correct the problem? 

A. Ensure that R2 has a default route in its routing table. 

B. Change the OSPF area type on R1 and R2. 

C. Edit the router configurations so that address 209.165.201.254 is a routable address. 

D. Remove the default-information originate command from the OSPF configuration of R2. 

Answer:

Explanation: 

Not sure that any of these answers are correct, it appears that this configuration is valid for reaching that one specific host IP. Answer A does have a route to that host so it would not need a default route to get to it. Choice B is incorrect as the area types have nothing to do with this. C is incorrect as that IP address is routable, and D is needed so that R1 will have a default route advertised to it from R2 so that it can reach this destination. 


Q98. Which BGP feature allows a router to maintain its current BGP configuration while it advertises a different AS number to new connections? 

A. local-AS 

B. next-hop-self 

C. allow-AS in 

D. soft reset 

Answer:

Explanation: 

The local-AS feature allows a router to appear to be a member of a second autonomous system (AS), in addition to its real AS. This feature can only be used for true eBGP peers. The local-AS feature is useful if ISP-A purchases ISP-B, but ISP-B's customers do not want to modify any peering arrangements or configurations. The local-AS feature allows routers in ISP-B to become members of ISP-A's AS. At the same time, these routers appear to their customers to retain their ISP-B AS number. 

Reference: http://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/13761-39.html 


Q99. Which two statements about IS-IS wide metrics are true? (Choose two.) 

A. The wide metric is a 24-bit field. 

B. The maximum link metric is 16777215. 

C. R3 and R4 periodically advertise PNSP messages to synchronize the IS-IS database. 

D. IS-IS devices that are enabled with wide metrics can become neighbors with a device that uses standard metrics. 

E. The maximum link metric is 4261412864. 

F. The maximum path metric is 16777215. 

Answer: A,B 


Q100. DRAG DROP 

Drag and drop the BGP state on the left to the action that defines it on the right. 

Answer: 


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