Share some CCIE 400-201 exam questions and answers below.
An support engineer has been tasked to protect an ISP infrastructure from the growing number of encrypted DDoS attacks. The solution should also validate the eBGP peering.
Which solution accomplishes these goals?
A. BGP FlowSpec
B. BTSH
C. BGP Route Dampening
D. BGP LS
E. RTBH
Answer: E
What ISIS TLVs are used to support MPLS traffic Engineering? (Choose three)
A. TLV 22 Extended IS neighbor
B. TLV 10 Authentication Information
C. TLV 134 Router ID
D. TLV 132 IP interface Address
E. TLV 128 IP Internal Reachability
F. TLV 135 IS Reachability
Answer: A, C, F
Which three IS-IS TLVs floods the MPLS TE resource allocation information through the network?
(Choose three)
A. Traffic engineering router ID
B. Extended IP reachability
C. IS TE reachability
D. RSVP
E. Extended IS reachability
F. Opaque
Answer: A, B, E
An operator engineer notices that even through the BGP next-hop tracking feature is enabled in case of a PE failure, the network convergence is still slow.
Which configuration provides a faster convergence time in case a PE fails in this MPLS network?
A.

B.

C.

D.

Answer: D
A content provider uses ISP-A and ISP-B for Internet transit service for the purpose of redundancy and load balancing. The content provider has one address range assigned to it.
Which two techniques achieve the load balancing and redundancy for inbound traffic? (Choose two)
A. BGP Local-preference attribute
B. BGP MED attribute
C. Use ISP-A for outbound traffic and ISP-B for inbound traffic
D. BGP AS-prepend technique
E. Address range split into two more specific prefixes, then advertise one specific prefix per ISP
F. Aggregate all prefixes received from both ISPs into a less-specific prefix
Answer: D, E
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