Q1. Which MPLS technology will achieve LAN extensions over the service provider backbone? 

A. AToM 

B. VPLS 

C. L2VPN 

D. L2TPv3 

View Answer

Q2. DRAG DROP 

Drag and drop the IOS XR NTP access group options on the left to the right from the least restrictive (top) to the most restrictive order (bottom). 

View Answer

Q3. Two MPLS VPN customers want to acquire Internet access. They make use of overlapping address space but do not want to use NAT on the CPEs. Which action satisfies this requirement? 

A. Configure each VRF with a default route in the global table by using a static route toward each customer's range, pointing to the customer interface in the global table. 

B. Configure VRF-aware NAT with a default route in the global table for each VRF that requires it 

C. Configure a separate PE-CE subinterface that terminates in the global routing table on the PE. 

D. Configure the Internet upstream interface inside a VRF, Which becomes an extranet VRF to which customers join and make use of NAT in this VRF. 

View Answer

Q4. DRAG DROP 

Drag and drop the subslot of the SIP-800 card that is used on Cisco CRS routers on the left to the correct PUM ASIC process on the right. 

View Answer

Q5. What is the PPMP label used for? 

A. for the ingress replication model with BIDIR-PIM in an overlay model 

B. only for the inter-AS mVPN models that use mLDP 

C. for the partitioned mVPN model with PIM signaling in an overlay model 

D. only for unicast over MPLS VPN 

E. for all the default MDT and mVPN models 

View Answer

Q6. Refer to the exhibit. OSPFv3 is already running, and R1 has added a new subnet (loopback 11). What is the reason code on R4 when executing the command show ipv6 ospf statistics? 

A. P (partial) 

B. N (network) 

C. R (router) 

D. L (link) 

View Answer

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 P router. Which command would significantly reduce the label allocations without compromising LDP functionalities? 

A. ip prefix-list List1 deny prefix/prefix_length 

! 

mpls ldp label 

allocate global prefix-list List1 

B. mpls ldp label 

allocate global host-routes 

C. access-list 1 permit subnet wildcard 

mpls ldp neighbor neighbor_ip labels accept 3 

D. mpls ldp password required for 10 

access-list 10 permit host_ip_1 

access-list 10 permit host_ip_2 

access-list 10 permit host_ip_n 

View Answer

Q8. 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. 

View Answer

Q9. Refer to the exhibit. R2 and R3 cannot install IS-IS IPv6 routes. What is the root cause? 

A. R2 is missing the metric-style wide command under the IS-IS process. 

B. R3 is missing the multi-topology transition command under the IS-IS address-family IPv6 process. 

C. R2 is missing the multi-topology command under the IS-IS address-family IPv6 process. 

D. R3 is missing the metric-style wide command under the IS-IS process. 

View Answer

Q10. Which are two major changes SyncE offers over traditional Ethernet to make it suitable for clock distribution? (Choose two.) 

A. SyncE introduces the concept of “Boundary Clocks” and “Transparent Clocks” improving network scalability and accuracy of clock synchronization. 

B. Industry standard that guarantee interoperability, since granular details, such as specific field values are specified. 

C. A mandated clock accuracy of 4.6ppm. 

D. The ESMC protocol for clock selection, distribution, management, traceability, and failover. 

E. High-priority synchronization packets so it can continually adjust its own oscillator. 

View Answer