JN0-660 Online Practice Questions and Answers

Click the Exhibit button.

In the exhibit, ISP A is charged a higher rate for traffic sent to R2. You are asked to lower costs for ISP A by configuring R1 to send traffic to R3 whenever possible. What are two ways to do this? (Choose two.)

A. set protocols bgp group isp-b neighbor 192.0.2.6 local-preference 120

B. set protocols bgp group isp-b neighbor 192.0.2.6 local-preference 80

C. set protocols bgp group isp-b neighbor 192.0.2.10 local-preference 120

D. set protocols bgp group isp-b neighbor 192.0.2.10 local-preference 80

Click the Exhibit button.

You are configuring a new PE router in your Layer 3 VPN. A remote PE router is using the configuration shown in the exhibit. Which configuration is needed to receive customer-vpn routes from the remote PE?

A. Option A

B. Option B

C. Option C

D. Option D

Which two configuration parameters are required to configure a BGP-signaled VPLS service? (Choose two.)

A. vpls-id

B. site-identifier

C. route-distinguisher

D. site-address

Click the Exhibit button.

Your IT manager asks you to describe a benefit of migrating from LDP VPLS towards BGP VPLS considering the operational network shown in the exhibit. What can you tell your manager?

A. Using BGP signaling improves scaling, because a full mesh of transport LSPs is not needed.

B. MAC addresses are learned through BGP instead of LDP, which improves scaling.

C. Ingress PE replication can be reduced, because BGP VPLS supports P2MP LSPs.

D. Configuration overhead is reduced when adding new sites or new VPNs.

Click the Exhibit button.

In the exhibit, R1 and R2 have a static default route configured that points toward the provider. Both routers redistribute the default route into OSPF. R2 is the preferred gateway to reach the provider. R1 is the backup gateway. All link metrics are equal. Which two steps ensure that traffic to the provider flows through R2 while the network is working properly? (Choose two.)

A. Redistribute the default route as a Type 1 external route on router R1 and a Type 2 external route on router R2.

B. Redistribute the default route as a Type 2 external route on router R1 and a Type 1 external route on router R2.

C. Modify the preference value of the default route on router R1 so that it is less preferred than OSPF external routes.

D. Modify the preference value of the default route on router R2 so that it is more preferred than OSPF external routes.

Click the Exhibit button.

Given the existing operational network shown in the exhibit, you now want to add a remote site for Customer B to the PE3 router. This change should not have an effect on the existing BGP sessions between the PE routers. Which Layer 3 VPN scaling mechanism allows PE3 to begin receiving Customer B routes?

A. route origin

B. route refresh

C. route reflection

D. route target filtering

Click the Exhibit button.

R3 and R4 want to establish an EBGP session between each other's loopback addresses. Static routes have been configured for the loopback addresses and you can ping from loopback to loopback. Their EBGP sessions are configured with multihop to allow for additional hops. The correct AS numbers have been specified at the [routing-options] hierarchy as well. Considering the topology in the exhibit, which statement is true?

A. BGP's protocol preference must be adjusted to be lower than protocol static for the session to establish.

B. Each peer must configure a local-address of their own loopback for the session to establish.

C. Each peer must specify a local-as within their EBGP configuration for the session to establish.

D. Each peer must configure multipath for the session to establish.

An OSPF database contains two router LSAs with identical link information indicating that one LSA is not valid. Which action will immediately clear the invalid LSA from the network without waiting for the LSA to time out or resetting the OSPF sessions on the router?

A. user@router# deactivate protocols ospf user@router# commit user@router# activate protocols ospf user@router# commit

B. user@router> clear ospf database purge

C. user@router> clear ospf database

D. user@router> restart routing

Which three statements are true about the BGP community attribute? (Choose three.)

A. There are three well-known communities.

B. Communities can be used to signal local preference in other AS networks.

C. Only well-known communities can be passed between AS networks.

D. Routing policies can be simplified using BGP communities.

E. Communities are used in the route selection process.

Click the Exhibit button.

On the network shown in the exhibit, a network administrator is attempting to bring up an LSP between Boston and Seattle using administrative groups. Which two of the following LSP configurations allow the LSP to establish? (Choose two.)

A. Option A

B. Option B

C. Option C

D. Option D

Click the Exhibit button

The 10.200/16 network is announced as an IS-IS route by R2 to its IS-IS neighbors. R3 and R4 are

configured with an IS-IS export policy, which announces this route to R5 and R6.

Which statement is true?

A. When viewed on R5 the 10.200/16 route will be marked down.

B. When viewed on R5 the 10.200/16 route will be marked up.

C. The 10.200/16 route will not be visible on R5.

D. The 10.200/16 route will be marked with the overload bit.

You want to enable PFE fast reroute for the MPLS nodes that are acting as bypass routers for multiple MPLS LSPs.

Which action must you take to facilitate this behavior?

A. Apply a load balancing policy to the forwarding tables of the bypass routers.

B. Apply the RSVP fast reroute feature on the bypass routers.

C. Apply the MPLS link protection feature on the bypass routers.

D. Apply the RSVP load balance feature on the ingress and the bypass routers.

Which action is required for BGP confederations to function?

A. Remove the well-known private AS numbers.

B. Change the maximum number of times an AS can be in an AS path.

C. Replace the neighbor AS number with the local AS number.

D. Set the confederation autonomous system to include private AS number(s).

-- Exhibit -- Exhibit -Click the Exhibit button. Referring to the exhibit, you must advertise the 200.100.0.0/16 routes from Site 2 to Site 1, but R3 is not

currently advertising any BGP routes to R2. Why is this happening?

A. The IBGP routes are not active and EBGP will advertise only active routes.

B. The IBGP routes are not active because the next hop is not reachable.

C. The IBGP routes will not be advertised because the AS path shows incomplete.

D. The IBGP routes will not be advertised because you must use a policy to advertise IBGP routes.

-- Exhibit -- Exhibit -Click the Exhibit button. Referring to the exhibit, which two configuration steps must be implemented so that LSPs will be able to

use link protection from R1 to R3? (Choose two.)

A. Configure each eligible interface for link protection.

B. Configure each eligible router's protocol RSVP for fast reroute.

C. Configure each eligible router's protocol MPLS for link protection.

D. Configure each eligible LSP for link protection.