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Q1. What is the minimum hardware configuration of the multishelf Cisco CRS-1 system?
A. One route processor (RP) card and one modular services card (MSC)
B. One distributed route processor (DRP) and one S13 fabric card (SFC)
C. One line card chassis (LCC) and one fabric card chassis (FCC)
D. One route processor (RP) and one fabric card chassis (FCC)
E. One line card chassis (LCC) and one S13 fabric card (SFC)
Answer: C
Explanation:
1.4. SP high end product
A minimum of one LCC and one FCC are required to configure a multishelf system.
Q2. Refer to the exhibit.
The prefix 10.1.1.64/28 should be advertised to the PE router, yet the prefix is not being received by the PE. Which configuration should be applied on CE in order to fix this issue?
A. jp prefix-list ROUTES_TO_SP seq 1 permit 10.1.1.64/28
B. router bgp 65000 no network 10.1.1.64 mask 255.255.255.240 network 10.1.1.128 mask 255.255.255.128
C. ip prefix-list ROUTES_TO_SP permit 10.1.1.64/28
D. router bgp 65000 no network 10.1.1.64 mask 255.255.255.240 network 10.1.1.0 mask 255.255.255.0
Answer: A
Q3. A Service Provider wants to extend MPLS WAN endpoints in the cloud at the edge of a customer network within the cloud. Which platform will meet this requirement?
A. Cisco NX-OS
B. Cisco CSR1000v
C. Cisco ISR Routers running IOS
D. Cisco CRS-1
E. Cisco ASR Routers running IOS-XR
Answer: B
Explanation: http://www.cisco.com/c/en/us/products/collateral/routers/cloud-services-router-1000v-series/datasheet-c78-733443.html
Q4. An engineer is deploying RTBH. What is necessary routing constraint required for successful implementation?
A. The trigger device must have an iBGP session with all the clusters/route reflectors in the autonomous system.
B. The trigger device must redistribute the static route pointing to a null interface into the IGP process.
C. The no ip reachables command must be issued on the PE router interface under attack.
D. The attacker’s destination IP address must be routed to a null interface.
E. The eBGP sessions need to set the next-hop attribute value to the trigger device loopback interface.
Answer: A
Explanation:
http://www.cisco.com/web/about/security/intelligence/ipv6_rtbh.html Old Dumps Actual Test pg no.52 (520 Q)
Q5. Refer to the exhibit.
Which piece of information can be derived from this Cisco IOS XR route policy?
A. If the destination is 227.0 0 3 or 227 0 0 13 the default table will be used for reverse path forwarding
B. If the destination ranges between 227.0 0.3 and 227 0.0.13. the IPv4 unicast table will be used for reverse path forwarding
C. If the destination is 227.0.0.3 or 227.0 0.13, the IPv4 unicast table will be used for reverse path forwarding
D. If the destination ranges between 227.0.0.3 and 227.0.0.13. the multicast default table will be used for reverse path forwarding
Answer: A
Q6. An IS-IS enabled router with multiple IS-IS neighbors is required to have BFD sessions with all neighbors. Which BFD mode should you use when you want to save the overhead of periodic protocol control packets?
A. echo
B. asynchronous
C. demand
D. active
Answer: C
Explanation: https://tools.ietf.org/html/rfc5880#section-3.1 RFC - 5880
Q7. Which BGP feature improves the convergence and response time to adjacency changes with BGP neighbors?
A. reducing BGP scanner timing to the minimum that is supported
B. BGP Multihop
C. Next-Hop Address Tracking
D. Fast Peering Session Deactivation
E. TTL Security Check
Answer: C
Explanation: http://www.cisco.com/c/en/us/td/docs/ios/12_2sb/feature/guide/sbbnhop.html
Q8. Which information is carried in the OSPFv3 intra-area Prefix LSA?
A. All link-local addresses
B. All IPv6 prefix and topology information that OSPFv2 included in Router LSA and Network LSA
C. List of options associated with the link to all other routers attached to the link
D. All prefix-specific information that OSPFv2 included in Router LSA and Network LSA
Answer: D
Explanation:
OSPFv3's new LSA, the Intra-area Prefix LSA (type 9), handles intra-area network information that was previously included in OSPFv2 type 2 LSAs. It is used in order to advertise one or more IPv6 prefixes. The prefixes are associated with router segment, stub network segment or transit network segment. Intra-area prefix LSAs (type 9) & Inter-Area-Prefix-LSA (type 3) carry all IPv6 prefix information, which, in IPv4, is included in router LSAs and network LSAs.
Q9. The following MPP configuration is applied on RA router: RP/0/RSP0/CPU0:RA#sh running-config control-plane
control-plane
management-plane
inband
interface TenGigE 0/0/0/0
allow SSH peer
address ipv4 5.0.0.0/8
Which two pieces of information are correct in regards to management traffic on RA router? (Choose two)
A. SNMP traps going out on TenGigE 0/0/0/0 interface are dropped.
B. SNMP polling coming through TenGigE 0/0/0/0 interface are dropped.
C. Telnet connections coming through MgmtEth0/RSP0/CPU0/0 interface are accepted.
D. SSH connections coming through TenGigE 0/0/0/0 interface from 5.5.5.5 host are accepted.
E. TACACS traffic going through TenGigE 0/0/0/0 interface are dropped.
Answer: B,D
Q10. BGP best route selection process is based on what?
A. path attributes
B. lowest cost
C. highest bandwidth
D. lowest delay
E. lowest hop-count
Answer: A
Q11. Refer to the exhibit .
A network engineer is troubleshooting a packet over SONET connection between Router A and Router B. What is causing the line protocol to be down?
A. The keepalive must be set on both sides
B. The POS CRC must be set on both sides.
C. There is an encapsulation mismatch
D. There is an MTU mismatch.
Answer: C
Q12. A MPP has been implemented in a Cisco IOS-XR device. Which are the two results that will occur? (Choose two.)
A. If MPP is disabled and a protocol is activated, all interfaces cannot pass traffic
B. MPP configuration changes doesn't affect active sessions established before the changes
C. RP/DRP Ethernet Interfaces are not default out-of-band interfaces
D. Management traffic to RP from all non-MPP interfaces is dropped
E. Interfaces configured for out-of-band MPP are still part of global routing/forwarding
Answer: B,D
Q13. Which are the three benefits of using the Yang model? (Choose three.)
A. Reduce lab footprint
B. Improve access to resources
C. Support interoperability that provides a standard way to model management data
D. Support simplified network management applications
E. Provide a scale virtual lab environment
F. Support programmatic interfaces
Answer: C,D,F
Explanation: https://tools.ietf.org/html/rfc6020#page-11
Q14. Refer to the exhibit. Customer XYZ Site 1 is not learning prefixes from Site 2. What is the issue?
A. MPLS LSP is broken along the path.
B. The route-policy is not implemented in router PE-2.
C. The BGP local-as command should be used between PE-1 and CE-1.
D. The route-distinguisher values must match in both sites.
E. The BGP as-override command should be implemented between PE-1 and CE-1.
Answer: E
Q15. The product team at an ISP that offers VoIP services wants to add two-way video conferencing to their product offering. Which three QoS methods can be applied for real-time traffic on WAN links with speeds that are slower than 768 Kbps? (Choose three.)
A. Apply voice-adaptive fragmentation to ensure that large video packets are fragmented and interleaved.
B. Apply LLQ with video traffic that is dedicated in the priority queue.
C. Apply MLP link fragmentation and interleaving to the interface.
D. Apply CBWFQ with video traffic in its own class, which is marked with a PHB value of AF41.
E. Apply CBWFQ with VoIP traffic in its own class, which is marked with a PHB value of EF.
F. Apply LLQ with both voice traffic and video traffic in the same priority queue
Answer: C,D,E