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2017 Mar 400-201 exam answers

Q91. Which two statements about forwarding equivalence class (FEC) are true? (Choose two) 

A. FEC might correspond to a destination IP subnet, but it might also correspond to any traffic class that the edge LSR considers significant. 

B. FEC is a group of IP packets that is forwarded over a different path, but with the same forwarding treatment. 

C. FEC is a group of IP packets that is forwarded over the same path, and with the same forwarding treatment. 

D. FEC is a group of IP packets that is forwarded over a different path, but with the different forwarding treatment. 

E. FEC is a group of IP packets that is forwarded over the same path, but with a different forwarding treatment. 

Answer: A,C 


Q92. DRAG DROP 

Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right. 

Answer: 


Q93. Which OSPF configuration suppresses the periodic OSPF hello packets? 

A. router ospf 1 

area0 

interface GigabitEthernet 0/1 

passive 

B. router ospf 1 

area0 

interface GigabitEthernet 0/1 

C. router ospf 1 

area 0 

interface GigabitEthernet 0/1

stub-router 

router-lsa r-bit 

D. router ospf 1 

area 0 

interface GigabitEthernet 0/1 

demand-circuit 

point-to-point 

Answer:


Q94. Refer to the exhibit. 

An ISP engineer has been asked to identity a method to protect the PE and to control the number of BGP prefixes learned from his customers. The BGP session should be dropped if the PE router receives more than 1000 BGP prefixes. A syslog message should be generated when the number of BGP prefixes learned from CE exceeds 850. 

Which Cisco IOS command should the engineer apply on PE routers? 

A. neighbor 10.1.1.2 maximum-prefix 1000 85 

B. neighbor 10.1.1.2 maximum-prefix 1000 850 

C. neighbor 10.1.1.2 maximum-prefix 1000 85 warning-only 

D. neighbor 10.1.1.2 maximum-prefix 1000 850 warning-only 

Answer:


Q95. Network Operations team has configured the routers with the logging buffered warnings command. Which three severity levels appear in the router syslog? (Choose three.) 

A. errors 

B. notifications 

C. informational 

D. alerts 

E. debugging 

F. emergencies 

Answer: A,D,F 


Updated 400-201 practice exam:

Q96. An engineer wants to configure Fast Reroute in the network. Which methodology eliminates RSVP configuration in the network? 

A. Enable LDP Fast Synch. 

B. Enable IP Fast Reroute. 

C. Enable the auto tunnel primary feature. 

D. Enable Cisco MPLS TE Fast Reroute. 

E. Enable the auto tunnel backup feature. 

Answer:

Explanation: 

http://www.cisco.com/en/US/docs/ios/12_0st/12_0st10/feature/guide/fastrout.html 


Q97. Refer to the exhibit. Two MPLS TE tunnels are configured with a total bandwidth guarantee of 100 Mbps. However, Tunnel 1 has a requirement to have one-fifth of this total bandwidth. Which two configurations accomplish this goal? (Choose two.) 

A. Configure tunnel mpls traffic-eng bandwidth 20000 under the Tunnel 1 interface. 

B. Configure bandwidth 20000 under the Tunnel 1 interface. 

C. Configure tunnel mpls traffic-eng bandwidth 80000 under the Tunnel 2 interface. 

D. Configure bandwidth 80 Mbps under physical interfaces in the path PE1-P2-PE2. 

E. Configure bandwidth 20 Mbps under physical interfaces in the path PE1-P1-PE2 

F. Configure bandwidth 80000 under the Tunnel 2 interface. 

Answer: A,C 

Explanation: See Configuration Guide 


Q98. An operations engineer wants to manually optimize the MPLS Traffic Engineering tunnels. Which Cisco IOS EXEC command should the engineer apply? 

A. tunnel mpls traffic-eng autoroute destination 

B. tunnel mpls traffic-eng path-option lowest _number dynamic 

C. mpls traffic-eng reoptimize lockdown 

D. mpls traffic-eng multicast-intact 

E. mpls traffic-eng reoptimize 

Answer:


Q99. When IPv6 is enabled on an interface, which three multicast addresses does the configured interface automatically join? (Choose three.) 

A. FF01::2 

B. FEC0::1 

C. FF02:0:0:0:0:1:FF00::/104 

D. FF02::1 

E. FF01::1 

F. FF02::2 

G. FF02::D 

H. FF02::5 

Answer: C,D,F 

Explanation: 

http://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/4_1/configuration/guides/cli_4_1/clibook/ipv6.pdf https://www.iana.org/assignments/ipv6-multicast-addresses/ipv6-multicast-addresses.xml 


Q100. An engineer is tasked with configuring Lawful-Intercept on the Internet facing routers. Which two security issues must the engineer take into consideration? (Choose two) 

A. Default SNMP does not include all the MIB references needed to respond to the request. 

B. A new and dedicated loopback interface is required to communicate with the MD device. 

C. Encryption might be required depending on the request. 

D. The communication between the MD and the Content IAP happens over UDP port 161. 

E. QoS and CoPP should be implemented to protect and optimize the tasks. 

F. SNMFV2c should be enabled in order to provide the correct message format. 

Answer: A,D