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Q1. Refer the exhibit. Two Autonomous Systems are enabled to support multicast. An engineer wants to set up configuration so that a multicast client at AS 100 can receive multicast traffic from the M-Server at AS 200. However, the RP announcements must be limited within each autonomous system site. Which Cisco IOS configuration achieves this goal?
A. On both ASBRs Eth0/0 and the no ip pim sparse-mode command.
B. On both ASBRs add the ip pim send-rp-discovery scope 1 command.
C. On both RPs add the ip pim send-rp-discovery scope 2 command.
D. On both ASBRs Eth0/0 add the ip pim bsr-border command.
E. On both ASBRs Eth0/0 add the ip pim dense-mode command.
F. On both RPs add the ip pim bsr-border command.
Answer: D
Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_2/ipmulti/command/reference/fiprmc_r/1rfmult2.html#wp1050039 It filters the BSR message: http://tools.ietf.org/html/rfc5059#section-4.1
Q2. What BGP feature improves on DDOS mitigation by allowing instructions that are more granular and allow for source address, destination, address, L4 details, and packet specifics to be analyzed?
A. RCMD
B. RTBH
C. BGP Flowspec
D. BGPSec
Answer: C
Explanation:
https://supportforums.cisco.com/document/12226726/asr9000xr-understanding-bgp-flowspec-bgp-fs
Q3. An engineer must implement E-Line services for a service provider network. Which two services apply in this situation? (Choose two.)
A. EVPL
B. E-Tree
C. E-LAN
D. EVC
E. EPL
Answer: A,E
Explanation: http://www.cisco.com/c/en/us/td/docs/net_mgmt/prime/fulfillment/6-2/theory/operations/guide/theory/l2ce.pdf
Q4. Refer to the exhibit.
MPLS VPN service has been provisioned for a customer by using inter-AS MPLS Option C. It is possible to redistribute ISP1 and ISP2 received loopback addresses into the local IGP. How many labels are associated with packet forwarding between the ASBRs?
A. 0
B. 1
C. 2
D. 3
E. 4
Answer: C
Q5. Which multicast feature listens multicast conversations maintaining a map in order to control which ports receive specific multicast traffic?
A. Bidirectional PIM
B. Source Specific Multicast
C. PIM assertion
D. IGMP snooping
Answer: D
Q6. A client has an MPLS inter-AS implementation that is required to have QoS deployed between ASBRs based on IP packet. At the same time, the client requires minimization of the routing configuration between ASBRs for better scalability. Which MPLS inter-AS option can achieve this goal?
A. Option A
B. Option B
C. Option C
D. Option AB
Answer: D
Q7. Due to recent acquisitions, a company's MPLS infrastructure is growing very quickly. Concerns arise about labeling each and every IP address on the service provider core network. The IP address space is designed as per following:
. Service provide ip address range is: 10.0.0.0/16
. All loopback addresses use subnet mask /32
. 10.0.0.0/24 range is used for loopback addresses
. All other subnet masks used for links are /24 and /25
Which command would significantly reduce the label allocations without compromising LDP functionalities?
A. ip prefix-list Llst1 deny 10.0.0./16 le 20 ge 25
!
mpls Idp label
allocate global prefix-list List1
B. access-list 1 permit 10.0.0.0 0.0.255.255
mpls Idp neighbor 10.0.0.1 labels accept 3
C. mpls Idp label
allocate global host-routes
D. mpls Idp password required for 10
!
access-list 10 permit 10.0.0.1
access-list 10 permit 10.0.0.2
access-list 10 permit 10.0.0.3
Answer: C
Q8. What are the four key design requirements for mobile IP backhaul? (Choose four.)
A. X2 interface turning point
B. bandwidth
C. Layer 2 Tunneling
D. native IPv6 support
E. DiffServQoS
F. MPLS-enabled interface
G. network timing distribution and recovery
H. mandatory Layer 3 access up to a cell site
Answer: C,D,G,H
Explanation: http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_14-3/143_backhaul.html
Q9. Refer to the exhibit.
ISP-X customers must be able to reach both ISP-Y and ISP-Z, but ISP-X must not allow transit traffic between ISP-Y and ISP-Z at any time Which two options satisfy this requirement? (Choose two.)
A. Use the MED to prefer the proper routes
B. Use communities to identify and filter routes.
C. Use local preference to prefer the routes
D. Use a route map to filter routes on the AS number.
E. Use the atomic aggregate attribute
Answer: B,D
Q10. Refer to the exhibit. A web server is connected to a switch via two Gigabit Ethernet links. These two links are bundled into a single logical link that provides the aggregate bandwidth of 2 Gbps. The support engineer notices that traffic from the Internet to the web server uses both Gigabit Ethernet links. However, traffic from the web server to the Internet uses only one link.
Which CLI command on the exhibit causes this behavior?
A. lacp port-priority 32768 in interface configuration mode
B. channel-group 5 mode passive
C. lacp port-priority 32768 in global configuration mode
D. port-channel load-balance dst-mac
Answer: D
Q11. Which BGP feature improves the convergence and response time to adjacency changes with BGP neighbors?
A. Fast Peering Session Deactivation
B. BGP Multihop
C. reducing BGP scanner timing to the minimum that is supported
D. TTL Security Check
E. Next-Hop Address Tracking
Answer: E
Q12. The following congestion avoidance configuration has been applied on an outgoing interface:
Which is the result of the egress packets marked as DSCP AF32 when the average queue depth is 40?
A. It will be dropped with a random rate less than the one defined by MPD.
B. It will be tail dropped.
C. It will be dropped with a rate of 1 packet out of 30.
D. It will be dropped with a rate of 1 packet out of 20.
Answer: D
Q13. Refer to the exhibit. The configuration in the exhibit redistributes static route 172.16.0.0/24 into BGP. Which action does the route-map STATIC-TO-BGP do?
A. Route 172.16.0.0/24 cannot be sent to the Internet.
B. Route 172.16.0.0/24 cannot be re-advertised beyond its neighbors.
C. Route 172.16.0.0/24 cannot be advertised outside of AS 100.
D. Route 172.16.0.0/24 cannot be exported from BGP to another protocol.
Answer: C
Q14. 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
Q15. Refer to the exhibit.
Customer ABC is peering with two service providers for Internet Access In order to prevent the AS100 from becoming a transit AS between ISP_1 and ISP_2 Which BGP configuration must be applied to achieve this goal?
A. CE1#
ip as-path access-list 1 permit ^$
route-map LOCAL_ONLY permit 10
match as-path 1
router bgp 100
neighbor 1.1.2.2 route-map LOCAL_ONLY in
CE2#
ip as-path access-list 1 permit ^$
route-map LOCAL_ONLY permit 10
match as-path 1
router bgp 100
neighbor 1.1.1.2 route-map LOCAL-ONLY in
B. CE1#
ip as-path access-list 1 permit ^11$
route-map LOCAL_ONLY permit 10
match as-path 1
, router bgp 100
neighbor 1.1.1.2 route-map LOCAL_ONLY out
CE2#
ip as-path acctss-list 1 permit ^22$
router-map LOCAL.ONLY permit 10
match as-path 1
router bgp 100
neighbor 1.1.1.2 routt-map LOCAL_ONLY out
C. CE1#
ip as-path access-list 1 permit ^$
route-map LOCAL_ONLY permit 10
match as-path 1
router bgp 100
neighbor 1.1.2.2 route-map LOCAL_ONLY out
CE2#
ip as-path access-list 1 permit ^$
route-map LOCAL_ONLY permit 10
match as-path 1
router bgp 100
neighbor 1.1.1.2 route-map LOCAL_ONLY out
D. CE1#
ip as-path access-list 1 permit ^100$
route-map LOCAL_ONLY permit 10
match as-path 1
router bgp 100
neighbor 1.1.2.2 route-map LOCAL_ONLY out
CE2#
ip as-path access-list 1 permit ^100S
route-map LOCAL_ONLY permit 10
match as-path 1
router bgp 100
neighbor 1.1.1.2 route-map LOCALJDNLY out
Answer: C