Q1. Refer to the exhibit.
Why does R1 not receive a label for 10.0.0.3/32 prefix?
A. R1 does not have an established LDP neighborship with the router announcing the 10.0.0.3/32 prefix.
B. The 10.0.0.3/32 prefix is being null-routed in the downstream neighbor
C. LDP peer is not configured to advertise a label for the 10.0.0.3/32 prefix
D. BGP is not configured to exchange labels with the BGP peer advertising 10.0.0 3/32 prefix
Answer: D
Q2. 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
Q3. In order to prevent malicious traffic flows, how does BGPsec protect prefix advertisements?
A. It validates only the originating AS.
B. It validates routes with encryption.
C. It validates the AS path.
D. It validates the next-hop AS.
Answer: C
Q4. A Service Provider is designing control policies at the customer edge of the network, in order to prevent usage that exceeds the contracted terms. A new client that is contracted for only 2 Gbps is connecting to the Service Provider edge with a 10 Gbps interface. Which two QoS strategies meet the design goal? (Choose two.)
A. On the service Provider edge, enable traffic shaping on the customer port.
B. On the customer edge device, enable traffic shaping on the interface that is connected to the Service Provider.
C. On the customer edge device, enable policing on the interface that is connected to the Service Provider.
D. On the service Provider edge, enable policing on the customer port.
E. On the service Provider edge, enable WRED on the customer port.
F. On the customer edge, enable WRED on the interface that is connected to the Service Provider.
Answer: B,D
Explanation: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_plcshp/configuration/xe-3s/asr1000/qos-plcshp-xe-3s-asr-1000-book/qos-plcshp-oview.html
Q5. 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
Q6. 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
Q7. A telecom company offers ISPs the ability to resell dynamic IP broadband services over its local loops, but it does not allow the resellers to install broadband network gateways. If an ISP wants to become a reseller but is unable to use NHRP, which tunneling protocol should be implemented?
A. IP in IP
B. IPsec
C. L2TP
D. GRE
Answer: C
Explanation:
However, while OpenVPN can not be used with VoIP, L2TP can be used for VoIP. Only use this if OpenVPN is not available and you are in need of very high security/encryption.
Q8. 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
Q9. 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/
Q10. 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