Q1. Which is the main goal of BGPsec regards to improve BGP security? 

A. Reduces risk of improper route propagation from unauthorized AS numbers 

B. Configures BGP route verification by storing routes in a database used to validate AS numbers 

C. Adds encryption to route propagation outside the iBGP AS 

D. Increases legitimacy and authenticity of BGP advertisements 

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Q2. Which QoS DiffServ mode preserves the original customer IP marking besides of on egress PE router uses the DSCP value of this IP packet on outbound queuing? 

A. MPLS PHB mode 

B. Pipe mode 

C. IntServ mode 

D. Uniform mode 

E. Short-Pipe mode 

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Q3. A Service Provider connects to a client site that has two CEs. These CEs have a backdoor link for backup. OSPF is used as the routing protocol in this environment. You want to ensure that client traffic prefers the service provider connections for routing instead of the secondary connection. Which option describes the default behavior and the action that accomplishes your goal? 

A. The routes to the Service Provider are not preferred, due to the increased OSPF cost through the service provider network. Ensure that the cost on the links to the service provider are lower than the secondary connection. 

B. The routes to the Service Provider are seen as external type 1 in the OSPF database. Configure a domain ID that is the same across all PEs, to ensure that customers see routes as intra-area. 

C. The routes to the Service Provider are seen as inter-area OSPF routes through the network. Configure a sham link to create a new intra-area path across the service provider network between the PE routers that service the client. 

D. The routes to the Service Provider are seen as equal and cause nondeterministic traffic patterns. Ensure that the secondary connection has a higher cost than the links to the service provider. 

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Q4. A network engineer is designing the BGP architecture with a requirement of preventing the AS 65001 from becoming a Transit AS path, using the following configuration: 

router bgp 65000 

neighbor 10.0.0.1 route-map BGP-ROUTE-POLICY in 

The goal is to prevent routes learned from 10.0.0.1 from being advertised to any other eBGP peering in the AS 65000. What command should be used within the route map to achieve this goal while keeping existing route policies in place? 

A. set community no-export additive 

B. set community no-advertise 

C. set community no-advertise additive 

D. set community no-export 

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Q5. Users are complaining of intermittent high packet loss for seconds at a time. The engineer troubleshooting the issue finds that a TenGigE link is bouncing for milliseconds at a time, causing the traffic path to reconverge onto a congested FastEthernet link. What can the engineer do to prevent this service-affecting reconvergence only in the case of momentary link bounces until the link can be repaired? 

A. decrease the carrier-delay up on both sides of the link 

B. disable keepalives and BFD 

C. decrease the carrier-delay down on both sides of the link 

D. increase the carrier-delay up on both sides of the link 

E. increase the carrier-delay down on both sides of the link 

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Q6. Refer to the exhibit. R3 cannot install a route to R1-R2 subnet 2001:1:155:12::/64. Which action resolves this issue? 

A. Add the redistribute ospf 1 include-connected command under the ipv6 router eigrp 10 process. 

B. For the OSPF process, add the no shutdown command. 

C. For prefix-list OSPF_INTO_EIGRP seq 20, replace the prefix with 2001:155:1:12::/64. 

D. For route-map OSPF_INTO_EIGRP, add the set metric 1000 1 255 1 1500 command. 

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Q7. DRAG DROP 

Drag each resiliency mechanism on the left to its corresponding technology on the right. 

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Q8. DRAG DROP 

Drag and drop Evolved Packet Core functional entities on the left to the correct description on the right. 

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Q9. Which BGP feature improves the convergence and response time to adjacency changes with BGP neighbors? 

A. reducing BGP scanner timing to the minimum that is supported 

B. BGP Multihop 

C. Next-Hop Address Tracking 

D. Fast Peering Session Deactivation 

E. TTL Security Check 

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Q10. Which OSPF configuration suppresses the periodic OSPF hello packets? 

A. router ospf 1 

area0 

interface GigabitEthernet 0/1 

passive 

B. router ospf 1 

area0 

interface GigabitEthernet 0/1 

C. router ospf 1 

area 0 

interface GigabitEthernet 0/1

stub-router 

router-lsa r-bit 

D. router ospf 1 

area 0 

interface GigabitEthernet 0/1 

demand-circuit 

point-to-point 

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