Practice Free 300-410 Exam Online Questions
Question #151
Refer to the exhibit.
After recovering from a power failure. Ethernet0/1 stayed down while Ethernet0/0 returned to the up/up state. The default route through ISP1 was not reinstated m the routing table until Ethernet0/1 also came up.
Which action resolves the issue?
- A . Reference the track object 1 in both static default routes
- B . Remove the references to the interface names from both static default routes
- C . Configure the default route through ISP1 with a higher administrative distance than 2.
- D . Add a static route to the 8 8.8 8/32 destination through the next hop 203.0.113.1
Correct Answer: D
Question #152
Refer to the exhibit.
A network engineer configured routers R1 and R2 with MP-BGP. The engineer noticed that the routers cannot exchange any IPv6 routes, however, the IPv4 neighbor relationship is working fine.
Which configuration must the engineer apply to router R2 to exchange IPv6 routes?
- A . Ipv6cef
I
Interface Loopback100
Ipv6 address 2001: DB8:128::2/128 Interface GigabitEthernet1/0 Ipv6 address 2001:DB8:1::2/64
I
router bgp 65002
no bgp default ipv4-unlcast
neighbor 2001: DB8:1::1 emote-as 65001
I
address-family ipv6
network 2001:DB8:128::2/128
neighbor 2001:DB8:1::1 activate - B . Ipv6 unicast-routing ipv6 cef
Interface Loopback100
ipv6 address 2001: DB8:12C:2 129
I
interface GigabitEthernet1/0 ipv6 address 2001: DB8:1::2 64 description AS65001 ID B466:A83D:3D7::1
!
router bgp 65002
no bgp default Ipv4-unicast
neighbor 2001: DB8:1::1 remote-as 65001
!
address-family Ipv4
neighbor 2001:DB8:1::1 activate - C . Ipv6 unicast-routing
ipvG cef
I
Interface Loopback100
Ipv6 address 2001:DB8:128::2/128 I interface GigabitEthernet1/0
ipv6 address 2001:DB8:1::2/64
!
router bgp 65002 no bgp default ipv4-unicast neighbor 2001: DB8:1::1 remote-as 65001
!
address-family ipv6 network 2001:DB8:128::2I128 - D . Ipv6 unicast-routing Ipv6 cef
I
interface Loopback100
ipv6 address 2001: DB8:128::2/128
!
interface GigabitEthernet1/0 ipv6 address 2001:DB8:1::2/64 i
router bgp 65002 no bgp default ipv4-unicast neighbor 2001: DB8:1::1 remote-as 65001
!
address-family ipv6
network 2001:DB8:128::2/128 neighbor 2001:DB8:1::1 activate
Correct Answer: D
Question #152
Refer to the exhibit.
A network engineer configured routers R1 and R2 with MP-BGP. The engineer noticed that the routers cannot exchange any IPv6 routes, however, the IPv4 neighbor relationship is working fine.
Which configuration must the engineer apply to router R2 to exchange IPv6 routes?
- A . Ipv6cef
I
Interface Loopback100
Ipv6 address 2001: DB8:128::2/128 Interface GigabitEthernet1/0 Ipv6 address 2001:DB8:1::2/64
I
router bgp 65002
no bgp default ipv4-unlcast
neighbor 2001: DB8:1::1 emote-as 65001
I
address-family ipv6
network 2001:DB8:128::2/128
neighbor 2001:DB8:1::1 activate - B . Ipv6 unicast-routing ipv6 cef
Interface Loopback100
ipv6 address 2001: DB8:12C:2 129
I
interface GigabitEthernet1/0 ipv6 address 2001: DB8:1::2 64 description AS65001 ID B466:A83D:3D7::1
!
router bgp 65002
no bgp default Ipv4-unicast
neighbor 2001: DB8:1::1 remote-as 65001
!
address-family Ipv4
neighbor 2001:DB8:1::1 activate - C . Ipv6 unicast-routing
ipvG cef
I
Interface Loopback100
Ipv6 address 2001:DB8:128::2/128 I interface GigabitEthernet1/0
ipv6 address 2001:DB8:1::2/64
!
router bgp 65002 no bgp default ipv4-unicast neighbor 2001: DB8:1::1 remote-as 65001
!
address-family ipv6 network 2001:DB8:128::2I128 - D . Ipv6 unicast-routing Ipv6 cef
I
interface Loopback100
ipv6 address 2001: DB8:128::2/128
!
interface GigabitEthernet1/0 ipv6 address 2001:DB8:1::2/64 i
router bgp 65002 no bgp default ipv4-unicast neighbor 2001: DB8:1::1 remote-as 65001
!
address-family ipv6
network 2001:DB8:128::2/128 neighbor 2001:DB8:1::1 activate
Correct Answer: D
Question #154
Refer to the exhibit.
An engineer cannot copy the IOS.bin file from the FTP server to the switch.
Which action resolves the issue?
- A . Allow file permissions to download the file from the FTP server.
- B . Add the IOS.bin file, which does not exist on FTP server.
- C . Make memory space on the switch flash or USB drive to download the file.
- D . Use the copy flash:/ftp://[email protected]/IOS.bin command.
Correct Answer: B
Question #155
Refer to the exhibit.
The authentication is not working as desired and the user drops into user-exec mode.
Which configuration resolves the issue?
- A . Option A
- B . Option B
- C . Option C
- D . Option D
Correct Answer: C
Question #156
Refer to the exhibit.
R3 is dual-homed to two service providers for traffic redundancy. R3 prefers its outbound traffic via R2.
Which set of configurations achieves this goal?
- A . Option A
- B . Option B
- C . Option C
- D . Option D
Correct Answer: C
Question #157
How are MPLS Layer 3 VPN services deployed?
- A . The RD and RT values must match under the VRR
- B . The RD and RT values under a VRF must match on the remote PE router
- C . The import and export RT values under a VRF must always be the same.
- D . The label switch path must be available between the local and remote PE routers.
Correct Answer: D
D
Explanation:
https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/vpn/65x/b-l3vpn-cg-ncs5500-65x/b-l3vpn-cg-ncs5500-65x_chapter_010.html
The ingress PE router must be able to reach the egress PE router for a packet to be relayed to its destination.
D
Explanation:
https://www.cisco.com/c/en/us/td/docs/iosxr/ncs5500/vpn/65x/b-l3vpn-cg-ncs5500-65x/b-l3vpn-cg-ncs5500-65x_chapter_010.html
The ingress PE router must be able to reach the egress PE router for a packet to be relayed to its destination.
Question #158
What is a characteristic of Layer 3 MPLS VPNs?
- A . LSP signaling requires the use of unnumbered IP links for traffic engineering.
- B . Traffic engineering supports multiple IGP instances
- C . Traffic engineering capabilities provide QoS and SLAs.
- D . Authentication is performed by using digital certificates or preshared keys.
Correct Answer: C
C
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_diffserv/configuration/15-mt/mp-te-diffserv-15-mt-book/mp-te-diffserv-aw.html
MPLS traffic engineering supports only a single IGP process/instance
The MPLS traffic engineering feature does not support routing and signaling of LSPs over unnumbered IP links.
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_path_setup/configuration/xe-3s/mp-te-path-setup-xe-3s-book/mp-te-enhance-xe.html
C
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_diffserv/configuration/15-mt/mp-te-diffserv-15-mt-book/mp-te-diffserv-aw.html
MPLS traffic engineering supports only a single IGP process/instance
The MPLS traffic engineering feature does not support routing and signaling of LSPs over unnumbered IP links.
Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_te_path_setup/configuration/xe-3s/mp-te-path-setup-xe-3s-book/mp-te-enhance-xe.html
Question #159
How is the LDP router ID used in an MPLS network?
- A . The MPLS LOP router ID must match the IGP router ID.
- B . If not configured, the operational physical interface is chosen as the router ID oven d a loopback is configured.
- C . The loopback with the highest IP address is selected as the router ID
- D . The force keyword changes the router ID to the speeded address without causing any impact.
Correct Answer: D
Question #160
Refer to the exhibit.
The OSPF routing protocol is redistributed into the BGP routing protocol, but not all the OSPF routes are distributed into BGP.
Which action resolves the issue?
- A . Include the word external in the redistribute command
- B . Use a route-map command to redistribute OSPF external routes defined in an access list
- C . Include the word internal external in the redistribute command
- D . Use a route-map command to redistribute OSPF external routes defined in a prefix list.
Correct Answer: C
C
Explanation:
If you configure the redistribution of OSPF into BGP without keywords, only OSPF intra-area and inter-area routes are redistributed into BGP, by default. You can use the internal keyword along with the redistribute command under router bgp to redistribute OSPF intra- and inter-area routes.
Use the external keyword along with the redistribute command under router bgp to redistribute OSPF external routes into BGP.
-> In order to redistribute all OSPF routes into BGP, we must use both internal and external keywords. The full command would be (suppose we are using OSPF 1): redistribute ospf 1 match internal external
Note: The configuration shows match internal external 1 external 2. This is normal because
OSPF automatically appends “external 1 external 2” in the configuration. In other words,
keyword external = external 1 external 2. External 1 = O E1 and External 2 = O E2.
Reference: https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html
C
Explanation:
If you configure the redistribution of OSPF into BGP without keywords, only OSPF intra-area and inter-area routes are redistributed into BGP, by default. You can use the internal keyword along with the redistribute command under router bgp to redistribute OSPF intra- and inter-area routes.
Use the external keyword along with the redistribute command under router bgp to redistribute OSPF external routes into BGP.
-> In order to redistribute all OSPF routes into BGP, we must use both internal and external keywords. The full command would be (suppose we are using OSPF 1): redistribute ospf 1 match internal external
Note: The configuration shows match internal external 1 external 2. This is normal because
OSPF automatically appends “external 1 external 2” in the configuration. In other words,
keyword external = external 1 external 2. External 1 = O E1 and External 2 = O E2.
Reference: https://www.cisco.com/c/en/us/support/docs/ip/border-gateway-protocol-bgp/5242-bgp-ospf-redis.html