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QUESTION NO: 41
In a Layer 2 VPN service, which is the default behavior of an EVC-based platform with regards to VLAN manipulation?
A. keeps the VLAN tag of the incoming frame
B. attaches two VLAN tags to the incoming frame
C. removes the VLAN tag from the incoming frame
In a Layer 2 VPN service, which is the default behavior of an EVC-based platform with regards to VLAN manipulation?
A. keeps the VLAN tag of the incoming frame
B. attaches two VLAN tags to the incoming frame
C. removes the VLAN tag from the incoming frame
D. removes all the VLAN tags from the incoming frame
E. sets the VLAN tag of the incoming frame
Answer: A
Explanation: http://www.cisco.com/c/en/us/support/docs/routers/asr-9000-series-aggregation- services-routers/116453-technote-ios-xr-l2vpn-00.html#anc7
E. sets the VLAN tag of the incoming frame
Answer: A
Explanation: http://www.cisco.com/c/en/us/support/docs/routers/asr-9000-series-aggregation- services-routers/116453-technote-ios-xr-l2vpn-00.html#anc7
QUESTION NO: 42
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
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
QUESTION NO: 43
A network engineer is responsible for implementing a solution with Cisco IOS XR Software that insures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? (Choose two.)
A. TE FRR
B. IP FRR
C. graceful restart
D. BFD
E. NSR
A network engineer is responsible for implementing a solution with Cisco IOS XR Software that insures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? (Choose two.)
A. TE FRR
B. IP FRR
C. graceful restart
D. BFD
E. NSR
Answer: C,E
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-3/mpls/configuration/guide/b_mpls_cg43xcrs/b_mpls_cg43crs_chapter_01.html#task_1129395
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-3/mpls/configuration/guide/b_mpls_cg43xcrs/b_mpls_cg43crs_chapter_01.html#task_1129395
QUESTION NO: 44
Refer to the exhibit. An SP core is running MPLS with OSPF as the IGP used for Loopback propagation. LDP Synchronization is enabled per the given configuration. What will the traffic flow behavior be after a temporary outage event on PE1 Eth0/0?
Refer to the exhibit. An SP core is running MPLS with OSPF as the IGP used for Loopback propagation. LDP Synchronization is enabled per the given configuration. What will the traffic flow behavior be after a temporary outage event on PE1 Eth0/0?
A. Permanently through PE1 -> P2 -> PE4 due to lowest path metric.
B. Initially through PE1 -> P1 -> PE4, then a few seconds later, it will be over PE1 -> P2 -> PE4.
C. Permanently through PE1 -> P1 -> PE4 due to lowest path metric.
D. Initially through PE1 -> P2 -> PE4, then a few seconds later, it will be over PE1 -> P1 -> PE4
Answer: B Explanation:
B. Initially through PE1 -> P1 -> PE4, then a few seconds later, it will be over PE1 -> P2 -> PE4.
C. Permanently through PE1 -> P1 -> PE4 due to lowest path metric.
D. Initially through PE1 -> P2 -> PE4, then a few seconds later, it will be over PE1 -> P1 -> PE4
Answer: B Explanation:
QUESTION NO: 45 Which two frame types are correct when configuring T3 interfaces? (Choose two.)
A. M23
B. G.832
C. Extended Super Frame
A. M23
B. G.832
C. Extended Super Frame
D. C-bit parity
E. G.751
F. Super Frame
Answer: A,D
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/interfaces/configuration/guide/hc42crsbook/hc42t3e3.html
E. G.751
F. Super Frame
Answer: A,D
Explanation: http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-2/interfaces/configuration/guide/hc42crsbook/hc42t3e3.html
QUESTION NO: 46
Refer to the exhibit. The referenced TE tunnels compete for bandwidth requirements over the limited available bandwidth that is provisioned. Which core MPLS component erases a conflict and provides admission control for any new added TE tunnel?
Refer to the exhibit. The referenced TE tunnels compete for bandwidth requirements over the limited available bandwidth that is provisioned. Which core MPLS component erases a conflict and provides admission control for any new added TE tunnel?
A. link management
B. link attributes
C. MPLS TE priorities
D. RSVP
Answer: D
Explanation: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/mpls/configuration/guide/mpls_cg/mp_te_RSVP.pdf
B. link attributes
C. MPLS TE priorities
D. RSVP
Answer: D
Explanation: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/sw/5_x/nx-os/mpls/configuration/guide/mpls_cg/mp_te_RSVP.pdf
QUESTION NO: 47
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.)
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. Configuretunnel mpls traffic-eng bandwidth 20000under the Tunnel 1 interface.
B. Configurebandwidth 20000under the Tunnel 1 interface.
C. Configuretunnel mpls traffic-eng bandwidth 80000under the Tunnel 2 interface.
D. Configurebandwidth 80 Mbpsunder physical interfaces in the path PE1-P2-PE2.
E. Configurebandwidth 20 Mbpsunder physical interfaces in the path PE1-P1-PE2
F. Configurebandwidth 80000under the Tunnel 2 interface.
Answer: A,C
Explanation: SeeConfigurationGuide
B. Configurebandwidth 20000under the Tunnel 1 interface.
C. Configuretunnel mpls traffic-eng bandwidth 80000under the Tunnel 2 interface.
D. Configurebandwidth 80 Mbpsunder physical interfaces in the path PE1-P2-PE2.
E. Configurebandwidth 20 Mbpsunder physical interfaces in the path PE1-P1-PE2
F. Configurebandwidth 80000under the Tunnel 2 interface.
Answer: A,C
Explanation: SeeConfigurationGuide
QUESTION NO: 48
What are three main characteristics of mLDP that differ from RSVP-TE? (Choose three.)
A. The LSPs are built from tailend to headend.
B. The LSPs are built from headend to tailend.
C. It supports only P2MP LSPs.
D. It supports both P2MP and MP2MP LSPs.
E. Signaling is periodic.
F. No periodic signaling is performed.
What are three main characteristics of mLDP that differ from RSVP-TE? (Choose three.)
A. The LSPs are built from tailend to headend.
B. The LSPs are built from headend to tailend.
C. It supports only P2MP LSPs.
D. It supports both P2MP and MP2MP LSPs.
E. Signaling is periodic.
F. No periodic signaling is performed.
Answer: A,D,F
Explanation: http://www.cisco.com/c/dam/en/us/products/ios-nx-os-software/multicast-label- distribution-protocol-mldp/whitepaper_c11-598929_v1.pdf
Explanation: http://www.cisco.com/c/dam/en/us/products/ios-nx-os-software/multicast-label- distribution-protocol-mldp/whitepaper_c11-598929_v1.pdf
QUESTION NO: 49
Which are the three header fields that affect how Equal-Cost Multipath hashes traffic flow into interface groups? (Choose three.)
A. source MAC address
B. source port
C. source IP address
D. destination IP address
E. IP protocol ID
F. destination MAC address
Answer: B,C,D
Explanation: https://supportforums.cisco.com/document/111291/asr9000xr-loadbalancing- architecture-and-characteristics#field
Which are the three header fields that affect how Equal-Cost Multipath hashes traffic flow into interface groups? (Choose three.)
A. source MAC address
B. source port
C. source IP address
D. destination IP address
E. IP protocol ID
F. destination MAC address
Answer: B,C,D
Explanation: https://supportforums.cisco.com/document/111291/asr9000xr-loadbalancing- architecture-and-characteristics#field
QUESTION NO: 50
Refer to the exhibit. What is the correct action to fix the L2TPv3 configuration?
Refer to the exhibit. What is the correct action to fix the L2TPv3 configuration?
A. At Router-A, correct the local interface in the pseudowire configuration.
B. At Router-B, correct the encapsulation in the pseudowire configuration.
C. At Router-A, correct the encapsulation in the pseudowire configuration.
D. At Router-B, correct the local interface in the pseudowire configuration.
B. At Router-B, correct the encapsulation in the pseudowire configuration.
C. At Router-A, correct the encapsulation in the pseudowire configuration.
D. At Router-B, correct the local interface in the pseudowire configuration.
Answer: B Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/l2tpv30s.html#wp1046765
http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/l2tpv30s.html#wp1046765
QUESTION NO: 51
Two routers that are running MPLS and LDP have multiple links that than connect them to each other. An engineer wants to ensure that the label bindings are not flushed from the LIB if one of the links fails. Which configuration meets this requirement?
A. themplsldp neighbor targetedcommand
B. themplsipcommand on a Cisco MPLS TE tunnel
C. themplsldp discovery targeted-hello acceptcommand
D. themplsldp session protectioncommand
Answer: D Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fssespro.html#wp1027177http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ldp/configuration/xe-3s/asr1000/mp-ldp-xe- 3s- asr1000-book/mp-ldp-sessn-prot.html#GUID-FA0EF183-FA7C-488A-85C1-82BFEB91DCA7
Two routers that are running MPLS and LDP have multiple links that than connect them to each other. An engineer wants to ensure that the label bindings are not flushed from the LIB if one of the links fails. Which configuration meets this requirement?
A. themplsldp neighbor targetedcommand
B. themplsipcommand on a Cisco MPLS TE tunnel
C. themplsldp discovery targeted-hello acceptcommand
D. themplsldp session protectioncommand
Answer: D Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fssespro.html#wp1027177http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ldp/configuration/xe-3s/asr1000/mp-ldp-xe- 3s- asr1000-book/mp-ldp-sessn-prot.html#GUID-FA0EF183-FA7C-488A-85C1-82BFEB91DCA7
QUESTION NO: 52
A network engineer needs to connect two core switches that use Gigabit Ethernet interfaces in an MPLS backbone and that are separated by a distance of 60 km. Which Cisco GBIC achieves this goal?
A. Cisco 1000BASE-T GBIC
B. Cisco 1000BASE-SX GBIC
C. Cisco 1000BASE-LX/LH GBIC
D. Cisco 1000BASE-ZX GBIC
Answer: D
Explanation: http://www.cisco.com/web/partners/downloads/765/tools/quickreference/gbic.pdf
A network engineer needs to connect two core switches that use Gigabit Ethernet interfaces in an MPLS backbone and that are separated by a distance of 60 km. Which Cisco GBIC achieves this goal?
A. Cisco 1000BASE-T GBIC
B. Cisco 1000BASE-SX GBIC
C. Cisco 1000BASE-LX/LH GBIC
D. Cisco 1000BASE-ZX GBIC
Answer: D
Explanation: http://www.cisco.com/web/partners/downloads/765/tools/quickreference/gbic.pdf
QUESTION NO: 53
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
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 MLP link fragmentation and interleaving to the interface.
B. Apply LLQ with both voice traffic and video traffic in the same priority queue.
C. Apply CBWFQ with VoIP traffic in its own class, which is marked with a PHB value of EF.
D. Apply CBWFQ with video traffic in its own class, which is marked with a PHB value of AF41.
E. Apply voice-adaptivefragmentation to ensure that large video packets are fragmented and interleaved.
F. Apply LLQ with video traffic that is dedicated in the priority queue.
Answer: A,C,D Explanation:
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS- SRND-Book/WANQoS.html
A. Apply MLP link fragmentation and interleaving to the interface.
B. Apply LLQ with both voice traffic and video traffic in the same priority queue.
C. Apply CBWFQ with VoIP traffic in its own class, which is marked with a PHB value of EF.
D. Apply CBWFQ with video traffic in its own class, which is marked with a PHB value of AF41.
E. Apply voice-adaptivefragmentation to ensure that large video packets are fragmented and interleaved.
F. Apply LLQ with video traffic that is dedicated in the priority queue.
Answer: A,C,D Explanation:
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS- SRND-Book/WANQoS.html
QUESTION NO: 54
An R1 router requires an equal load balancing to reach the prefix 192.168.0.0/16 over two exit points: through R2 and R3 routers. Which two options must be configured on the R1 router to achieve this goal? (Choose two.)
A. The BGP maximum path feature must be configured on R1.
B. The BGP PIC core must be enabled on R1
C. Weight, local-pref, MED, as-path length, origin, and the BGP next-hop IGP cost must be the same for the R2 and R3 IBGP updates to R1.
D. The BGP Link Bandwidth feature must be applied on R1.
E. BGP extended community exchange must be enabled betweenIBGP neighbors.
Answer: D,E Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_2s/feature/guide/fsbgplb.html#wp1058373
An R1 router requires an equal load balancing to reach the prefix 192.168.0.0/16 over two exit points: through R2 and R3 routers. Which two options must be configured on the R1 router to achieve this goal? (Choose two.)
A. The BGP maximum path feature must be configured on R1.
B. The BGP PIC core must be enabled on R1
C. Weight, local-pref, MED, as-path length, origin, and the BGP next-hop IGP cost must be the same for the R2 and R3 IBGP updates to R1.
D. The BGP Link Bandwidth feature must be applied on R1.
E. BGP extended community exchange must be enabled betweenIBGP neighbors.
Answer: D,E Explanation:
http://www.cisco.com/c/en/us/td/docs/ios/12_2s/feature/guide/fsbgplb.html#wp1058373
QUESTION NO: 55
An engineer has just configured IOS-XR with out-of-band MPP. Which are the three results that will occur? (Choose three.)
A. Management traffic to RPfrom all non-MPP interfaces is dropped
B. RP/DRP Ethernet Interfaces are not default out-of-band interfaces.
An engineer has just configured IOS-XR with out-of-band MPP. Which are the three results that will occur? (Choose three.)
A. Management traffic to RPfrom all non-MPP interfaces is dropped
B. RP/DRP Ethernet Interfaces are not default out-of-band interfaces.
C. MPP configuration changes doesn’t affect active sessions established before the changes
D. Interfaces configured for out-of-band MPP are still part of global routing/forwarding
E. If MPP is disabled and a protocol is activated, all interfaces cannot pass traffic
F. LPTS will provide rate limiting
Answer: A,C,F
Explanation: https://supportforums.cisco.com/document/93456/asr9000xr-local-packet-transport- services-lpts-copp
D. Interfaces configured for out-of-band MPP are still part of global routing/forwarding
E. If MPP is disabled and a protocol is activated, all interfaces cannot pass traffic
F. LPTS will provide rate limiting
Answer: A,C,F
Explanation: https://supportforums.cisco.com/document/93456/asr9000xr-local-packet-transport- services-lpts-copp
QUESTION NO: 56
Refer to the exhibit. The Service Provider is deploying Internet service to its VRF customers by using vrf INTERNET. A dedicated firewall provides NAT functionally towards the Internet. Assume that IP address overlapping between VRFs is not an issue.
Refer to the exhibit. The Service Provider is deploying Internet service to its VRF customers by using vrf INTERNET. A dedicated firewall provides NAT functionally towards the Internet. Assume that IP address overlapping between VRFs is not an issue.
Which three configuration steps are required to add Internet service to the VRF customers? (Choose three.)
A. Export the RD ofvrfINTERNETfrom all customer VRFs.
B. Originate a default route on PE4 invrfINTERNET.
C. Import the RD fromvrfINTERNETin all customer VRFs.
D. Originate a default route on the firewall invrfINTERNET.
E. Import the VRF “INTERNET” Route Target in all customer VRFs.
F. Import the Route Target of all customer VRFs invrfINTERNET.
G. Leak all VRF routes to the global routing table
A. Export the RD ofvrfINTERNETfrom all customer VRFs.
B. Originate a default route on PE4 invrfINTERNET.
C. Import the RD fromvrfINTERNETin all customer VRFs.
D. Originate a default route on the firewall invrfINTERNET.
E. Import the VRF “INTERNET” Route Target in all customer VRFs.
F. Import the Route Target of all customer VRFs invrfINTERNET.
G. Leak all VRF routes to the global routing table
Answer: B,C,G Explanation:
QUESTION NO: 57 DRAG DROP Drag and drop the MPLS operation listed on the left to the correct order of the operation on the right.
QUESTION NO: 58 QoS is applied on an outgoing interface as shown below:
policy-map COS-OUT
policy-map COS-OUT
class DATA random-detect dscp-based random-detect exponential-weighting-constant 9 random-detect dscp 26 39 117 30 random-detect dscp 28 19 35 20 What will the QoS result be for egress traffic with an average queue depth of 40 that is marked as DSCP AF32?
A. Traffic will be dropped with a random rate less than the one defined by MPD.
B. All traffic will be tail dropped.
C. Traffic will be dropped with a rate of 1 packet out of 20.
D. Traffic will be dropped with a rate of 1 packet out of 30.
Answer: C Explanation:
A. Traffic will be dropped with a random rate less than the one defined by MPD.
B. All traffic will be tail dropped.
C. Traffic will be dropped with a rate of 1 packet out of 20.
D. Traffic will be dropped with a rate of 1 packet out of 30.
Answer: C Explanation:
QUESTION NO: 59 Refer to exhibit. NAT64 stateless configuration has been applied on RT1 router. The NAT64 prefix stateless used on this scenario is 2001:DB8:2::/96. ‘Host IPv4 only’ needs to test the connectivity with ‘Host IPv6 only’ using a ping command. Which is the correct ping command ‘Host IPv4 only’ should use?
A. ping 27.1.1.10
B. ping 27.1.1.10 source 2001:db8:2::7001:10A C. ping 2001:db8:2::7001:10A D. ping 2001:db8:2::112.1.1.10 E. ping 2001:db8:2::27.1.1.10 F. ping 2001:db8:2::1B01:10A
Answer: A
B. ping 27.1.1.10 source 2001:db8:2::7001:10A C. ping 2001:db8:2::7001:10A D. ping 2001:db8:2::112.1.1.10 E. ping 2001:db8:2::27.1.1.10 F. ping 2001:db8:2::1B01:10A
Answer: A
Explanation:
QUESTION NO: 60 Which is the RP address of the IPv6 multicast address FF76:0:130:1234:5678:9abc::4321? A. 4321:5678:9abc::30 B. 4321:5678:9abc::13 C. 1234:5678:9abc::130 D. 1234:5678:9abc::1 E. 1234:5678:9abc::13
Answer: D
Reference:http://www.netcraftsmen.com/wp-content/uploads/2014/12/20090429-CMU-Introduction_to_IP_Multicast.pdfpage 53
Answer: D
Reference:http://www.netcraftsmen.com/wp-content/uploads/2014/12/20090429-CMU-Introduction_to_IP_Multicast.pdfpage 53
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