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Q1. QoS is applied on an outgoing interface as shown below:
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
Q2. A network engineer wants to decrease the convergence time of a network that is running integrated IS-IS as an IGP, at the expense of bandwidth and CPU usage. Which two configuration tasks achieve this goal? (Choose two.)
A. Configure the hold time to be 1 second.
B. Configure the hello interval to be minimal.
C. Ensure that hello-padding is disabled.
D. Ensure that the hello multiplier is set to 3.
E. Configure the hello multiplier to be 3.
Answer: B,D
Explanation:
https://books.google.co.in/books?id=u_XOQy4cBkgC&pg=PA184&lpg=PA184&dq=what+is +hello+multiplier+minimal+time+in+integrated+is-is&source=bl&ots=XqDfyO3AVT&sig=NHY0L-k-nhHrg7h6i3RWorttgcE&hl=en&sa=X&ved=0CDAQ6AEwA2oVChMIhfCI5ZXTxwIVQwaOC h3PfQea#v=onepage&q=what%20is%20hello%20multiplier%20minimal%20time%20in%20 integrated%20is-is&f=false
Q3. Refer to the exhibit.
ABC and XYZ MPLS VPN customers are accruing Internet access. Both CEs are sending traffic to the Internet. Which statement about their connectivity is true?
A. Both CEs will have connectivity.
B. Only CE-XYZ will have connectivity.
C. Neither CEs will have connectivity, as both CEs are using the same NATed subnet.
D. Only CE-ABC will have connectivity.
E. Neither CEs will have connectivity, as IAR does not have route back to the NATed subnet.
Answer: D
Q4. 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 of vrf INTERNET from all customer VRFs.
B. Originate a default route on PE4 in vrf INTERNET.
C. Import the RD from vrf INTERNET in all customer VRFs.
D. Originate a default route on the firewall in vrf INTERNET.
E. Import the VRF “INTERNET” Route Target in all customer VRFs.
F. Import the Route Target of all customer VRFs in vrf INTERNET.
G. Leak all VRF routes to the global routing table.
Answer: B,C,G
Q5. Two Service Providers are beginning a merger between AS boundaries to provide MPLS-enabled services between their networks. Customers are using both Service Providers for services and, under certain circumstances; there are requirements to extend Layer 2 VPN circuits between each provider. The providers are in the process of completing the technical merger. However, the MPLS is not supported between the providers. Which action allows MPLS Layer 2 VPN circuits to be built over the inter-AS link?
A. Create a GRE tunnel with the mpls ip command between ASBRs.
B. Create Layer 2 VPN peerings between PE routers from each provider.
C. Create a VPNv4 peering between ASBRs to advertise labels between each provider.
D. Create a sham link between ASBR routers to enable a superbackbone peering for Layer 2 VPN signaling.
Answer: A
Explanation: https://ccdewiki.wordpress.com/2013/07/02/inter-as-l2vpn-mpls-solutions/
Q6. Which two frame types are correct when configuring T3 interfaces? (Choose two.)
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
Q7. 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
Q8. 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
Q9. DRAG DROP
Drag and drop each fast detection mechanism on the left to its definition on the right.
Answer:
Q10. What is NETCONF?
A. It is a standard for installing, manipulating and deleting configuration of network devices.
B. it is a Cisco proprietary solution to help remove the time, cost and manual steps involved in network element configuration.
C. It is data modeling language, to help remove the time, cost and manual steps involved in network element configuration.
D. It is a new recommendation which writes device specific CLI scripts while keeping flexibility in a vendor dependence environment.
Answer: A
Explanation: http://www.tail-f.com/education/what-is-netconf/
Q11. 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
Q12. 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
Q13. Which is the main characteristic of LTE architecture compared to other mobile architectures?
A. Provides supports to deploy Layer 3 MPLS VPN model, where other mobile architectures do not support.
B. Offers node redundancy with the static route configured on the IP NodeB using the HSRP/VRRP virtual ip address.
C. Provides a simpler, less hierarchical model with the capability of simplistically distributing the core gateways.
D. Introduces a hierarchical model with connection-oriented service requirements and one-to-one relationships.
Answer: C
Explanation: https://books.google.co.in/books?id=-fyjBAAAQBAJ&pg=PA50&lpg=PA50&dq=LTE+Provides+a+simpler,+less+hierarchical+mo del+with+the+capability+of+simplistically+distributing+the+core+gateways.&source=bl&ots =Bwpk3CQ_jN&sig=2-kgrCA_7hEX3kuvSxWVV2AnAS0&hl=en&sa=X&ved=0CB0Q6AEwAGoVChMI_5La8tbCx wIVgZ6OCh1N7gHa#v=onepage&q=LTE%20Provides%20a%20simpler%2C%20less%20 hierarchical%20model%20with%20the%20capability%20of%20simplistically%20distributing %20the%20core%20gateways.&f=false
Q14. Refer to the exhibit. Router RT1 has three equal-cost paths back to the source. Which configuration should be applied in order to load-balance the multicast traffic across all three links.
A. Create three static multicast routes where each pointing out to one or three interfaces.
B. Enable PIM multipath.
C. Create a tunnel interface between RT1 and RT2. Enable PIM on the interface tunnel and disable PIM on the three interfaces part of equal-cost path between RT1 and RT2.
D. PIM load balance is not possible. PIM only chooses one interface for RFC check and prunes the other interfaces.
Answer: C
Explanation:
Reference: http://www.cisco.com/c/en/us/support/docs/ip/ip-multicast/16450-mcastguide0.html
Q15. DRAG DROP
Drag each resiliency mechanism on the left to its corresponding technology on the right.
Answer: