Examcollection offers free demo for 400-201 exam. "CCIE SP Written v4.0", also known as 400-201 exam, is a Cisco Certification. This set of posts, Passing the Cisco 400-201 exam, will help you answer those questions. The 400-201 Questions & Answers covers all the knowledge points of the real exam. 100% real Cisco 400-201 exams and revised by experts!
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Q1. Which is one difference between H-VPLS and VPLS?
A. VPLS is a point-to-point Layer-2 services and H-VPLS is a multipoint Layer-2 services.
B. H-VPLS reduces signaling overhead and packet replication requirements for the provider edge.
C. VPLS improve scalability concerns identified on H-VPLS implementation.
D. H-VPLS connects using also other Layer-2 encapsulation such as PPP and VPLS connects using Ethernet encapsulation only
Answer: B
Q2. Refer to the exhibit.
A service provider has multiple time sources in the environment for NTP. The time source at 10.0.4.1 is intended to be seen as a primary time source. What command can be issued on PE4 to fix the configuration, ensuring the proper NTP source will be issued?
A. ntp peer 10.0.4.1
B. ntp peer 10.0.4.1 prefer
C. ntp server 10.0.4.1 source GigabitEthernet0/0
D. ntp server 10.0.4.1 prefer
Answer: D
Explanation: 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_3ntp.html#wp1106725
Q3. In Multicast Inter-AS VPN context, which BGP attribute should you use to overcome the Option B limitation due to a rewritten originator next-hop address in the network?
A. connector
B. AS path
C. weight
D. originator
Answer: A
Q4. A Service Provider is offering VoIP services and a service level agreement to customers. Which configuration provides validation to customers that the service level agreement has been honored?
A. ip sla 999 udp-jitter 209.165.200.225 1000 codec g729a tos 160 ip sla schedule 999 life forever start-time now
B. ip sla 999 icmp-jitter 209.165.200.225 tos 160 ip sla schedule 999 life forever start-time now
C. ip sla 999 icmp-jitter 209.165.200.225 tag VoIP-SLA ip sla schedule 999 life forever start-time now
D. ip sla 999 udp-jitter 209.165.200.225 1000 codec g729a tag VoIP-SLA
ip sla schedule 999 life forever start-time now
Answer: D
Q5. DRAG DROP
Drag and drop the IPFIX terminology on the left to the correct description on the right. Not all options will be used.
Answer:
Q6. Refer to the exhibit.
PIM sparse mode is implemented in the network RPF succeeds under which condition?
A. The RPF check succeeds for the next hop whose router ID is the highest.
B. The RPF check succeeds for the highest DR priority for the PIM router.
C. The RPF check succeeds for both PIM neighbors, and traffic load-balances across both neighbors.
D. The RPF check succeeds for the highest interface IP address for the PIM router.
Answer: D
Q7. Which Cisco IOS XR Virtualization technology provides full isolation between virtualized routing instances for extra control plane resources?
A. HVR
B. SVR
C. SDR
D. DRP
Answer: C
Explanation:
http://www.cisco.com/en/US/solutions/collateral/ns341/ns524/ns562/ns573/white_paper_c11-512753_ns573_Networking_Solutions_White_Paper.html
Q8. For MPLS inter-AS Option B, how many labels are associated with packet forwarding between the VPNv4 ASBR neighbors?
A. 0
B. 1
C. 2
D. 3
Answer: D
Explanation: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/xe-3s/irg-xe-3s-book/bgp_nsr_support_for_mpls_vpnv4_and_vpnv6_inter-as_option_b.pdf
Q9. In order to prevent malicious traffic flows, how does BGPsec protect prefix advertisements?
A. It validates only the originating AS.
B. It validates routes with encryption.
C. It validates the AS path.
D. It validates the next-hop AS.
Answer: C
Q10. Refer to the exhibit. R2 and R3 cannot install IS-IS IPv6 routes. What is the root cause?
A. R2 is missing the metric-style wide command under the IS-IS process.
B. R3 is missing the multi-topology transition command under the IS-IS address-family IPv6 process.
C. R2 is missing the multi-topology command under the IS-IS address-family IPv6 process.
D. R3 is missing the metric-style wide command under the IS-IS process.
Answer: B