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Q1. A network engineer wants to set the local preference to 100 for the specific BGP community sets of 100:1, 101:1, and 102:1..Which option can the engineer use to implement this through RPL, where the BGP community set list is made by the name of lowpri-communities?
A. route-policy ch-pref if community matches lowpri-communities then set local-preference 100 endif end-policy
B. route-policy ch-pref if community eq lowpri-communities.then set local-preference 100 endif end-policy
C. route-policy ch-pref if community matches-any lowpri-communities.then set local-preference 100 endif end-policy
D. route-policy ch-pref if community neq lowpri-communities.then set local-preference 100 endif end-policy
Answer: C
Q2. An engineer wants to use an address family to configure internal BGP peer 10.1.1.1 as a route reflector client for unicast and multicast prefixes. Which option accomplishes this configuration?
A. router bgp 140 address-family ipv4 unicast neighbor 10.1.1.1 remote-as 140 address-family ipv4 unicast route-reflector-client exit address-family ipv4 multicast route-reflector-client
B. router bgp 140 neighbor 10.1.1.1 address-family ipv4 unicast address-family ipv4 multicast remote-as 150 route-reflector-client exit
C. router bgp 140 address-family ipv4 unicast route-reflector-client address-family ipv4 multicast remote-as 140 neighbor 10.1.1.1
D. router bgp 140 address-family ipv4 unicast neighbor 10.1.1.1 remote-as 150 address-family ipv4 unicast route-reflector-client exit address-family ipv4 multicast route-reflector-client
Answer: A
Q3. Which option describes the configuration for a Cisco IOS XR OSPF router to give it the highest chances of becoming DR?
A. ip ospf priority 0 under the OSPF interface statement
B. ip ospf priority 0 under the OSPF area statement
C. ip ospf priority 255 under the OSPF interface statement
D. ip ospf priority 255 under the OSPF area statement
E. Leave priority unchanged, but assign a high-numbered IP address on a loopback interface.
F. Leave priority unchanged, but assign a high-numbered IP address on any physical interface.
Answer: C
Q4. Which three valid session commands are supported by peer session templates? (Choose three.)
A. local-as
B. as-override
C. inherit peer-session
D. inherit peer-policy
E. disable-connected-check
F. route-reflector-client
Answer: A,C,E
Q5. Refer to the route policies exhibit.
Which five route policies will cause the routes to be dropped or passed? (Choose five)
A. route-policy one will cause the routes to be dropped.
B. route-policy two will cause the routes to be dropped.
C. route-policy three will cause the routes to be dropped.
D. route-policy four will cause the routes to be dropped.
E. route-policy five will cause the routes to be dropped.
F. route-policy one will cause the routes to be passed.
G. route-policy two will cause the routes to be passed.
H. route-policy three will cause the routes to be passed.
I. route-policy four will cause the routes to be passed.
J. route-policy five will cause the routes to be passed.
Answer: A,C,E,G,I
Q6. A Cisco IOS XR router is a member in OSPF 1 and EIGRP 100 domains, and needs to redistribute OSPF learned routes into EIGRP. Which configuration achieves this goal?
A. router eigrp 100 address-family ipv4 redistribute ospf 1.
B. router eigrp 100 redistribute ospf 1 route-policy OS_INTO_EIG route-policy OS_INTO_EIG set eigrp-metric 100 10 255 1 155
C. router eigrp 100 address-family ipv4 redistribute ospf 1 route-policy OS_INTO_EIG route-policy OS_INTO_EIG set eigrp-metric 100 10 255 1 155
D. router eigrp 100 default-metric 100 1 255 1 1500 redistribute ospf 1
Answer: C
Q7. When implementing LDP, what is liberal label retention mode?
A. To reduce the convergence time, the LSR will retain all the received labels in its LIB even if all the neighbor LSRs go down temporary
B. The LSR can assign it's own label for each destination network even though it has not been assigned a next hop label from the neighbor LSR
C. The LSR will store the label received from the downstream LSRs in its LIB even if the downstream LSRs are not the next hop for the destination
D. The LSR will not perform PHP if it is operating in liberal label retention mode
Answer: C
Explanation:
By default, LDP accepts labels (as remote bindings) for all prefixes from all peers. LDP operates in liberal label retention mode, which instructs LDP to keep remote bindings from all peers for a given prefix. For security reasons, or to conserve memory, you can override this behavior by configuring label binding acceptance for set of prefixes from a given peer.
The ability to filter remote bindings for a defined set of prefixes is also referred to as LDP inbound label filtering
Q8. Which option describes how.an engineer must configure route summarization on a Cisco IOS XE OSPF-enabled network of routers?
A. area range command under the router OSPF process of the ABR
B. area range command under the router OSPF process of the router wanting to originate the summary route from
C. summary-address command under the OSPF process of the ABR
D. summary-address command under the OSPF process of the router wanting to originate the summary route from
E. network statement for the aggregate address under the router OSPF process on the ABR
F. network statement for the aggregate address under the router OSPF process of the router wanting to originate the summary route from
Answer: A
Q9. Which three BGP configuration groupings are supported on Cisco IOS XR Software? (Choose three.)
A. peer-group
B. af-group
C. bgp-group
D. session-group
E. neighbor-group
F. as-group
Answer: B,D,E
Explanation:
.Commands relating to a peer group found in Cisco IOS Release 12.2 have been removed from Cisco IOS XR software. Instead, the af-group, session-group, and neighbor-group configuration commands are added to support the neighbor in Cisco IOS XR software: –The af-group command is used to group address family-specific neighbor commands within an IPv4 or IPv6 address family. Neighbors that have the same address family configuration are able to use the address family group name for their address family-specific configuration. A neighbor inherits the configuration from an address family group by way of the use command. If a neighbor is configured to use an address family group, the neighbor will (by default) inherit the entire configuration from the address family group. However, a neighbor will not inherit all of the configuration from the address family group if items are explicitly configured for the neighbor. –The session-group command allows you to create a session group from which neighbors can inherit address family-independent configuration. A neighbor inherits the configuration from a session group by way of the use command. If a neighbor is configured to use a session group, the neighbor (by default) inherits the session group's entire configuration. A neighbor does not inherit all the configuration from a session group if a configuration is done directly on that neighbor.
–The neighbor-group command helps you apply the same configuration to one or more neighbors. Neighbor groups can include session groups and address family groups. This additional flexibility can create a complete configuration for a neighbor. Once a neighbor group is configured, each neighbor can inherit the configuration through the use command. If a neighbor is configured to use a neighbor group, the neighbor (by default) inherits the neighbor group's entire BGP configuration.
–However, a neighbor will not inherit all of the configuration from the neighbor group if items are explicitly configured for the neighbor. In addition, some part of the neighbor group's configuration could be hidden if a session group or address family group was also being used.
Q10. When redistributing routes into OSPF, which kind of routes will be redistributed by default on Cisco IOS XR Software but will not be automatically redistributed by default on Cisco IOS Software and Cisco IOS XE Software?
A. Type 1 external routes
B. Type 2 external routes
C. subnetted routes
D. /32 host routes
E. tagged static routes
Answer: C
Explanation:
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