Practice Free 300-510 Exam Online Questions
Refer to the exhibit.
A network engineer is investigating a report of packet drops between the branch site and the central site.
✑ The two sites are connected via OSPF and RSVP-TE tunnels.
✑ Traffic from the central site to the branch site is passing normally.
✑ Technicians at both sites successfully ping the loopback IP addresses on routers R1 and R2.
Which configuration corrects the packet-drop problem?
- A . Option A
- B . Option B
- C . Option C
- D . Option D
Which output from the show isis interface command helps an engineer troubleshoot an IS-IS adjacency problem on a Cisco IOS-XR platform?
- A . metric
- B . priority
- C . circuit type
- D . hello interval
C
Explanation:
RP/0/0/CPU0:XR1#show isis interface | i Cir
Tue Jun 29 17:56:42.369 UTC
Circuit Type: level-1-2
Circuit Number: 0
Circuit Type: level-1
Circuit Number: 1
RP/0/0/CPU0:XR1#show isis interface | i Hel
Tue Jun 29 17:56:46.609 UTC
Refer to the exhibit.
R2
R1
Int loopback0
Ip ospf 10 area 0
Int loopback10
Ip ospf network point-to-point
Int loopback20
Ip ospf network point-to-point
Int loopback30
Ip ospf network point-to-point
Router ospf 10
Area 1 range 172.16.100.0 255.255.252.0
Copy run start
Verification: –
A network operator working for a telecommunication company with an employee id: 4074:92:707 is planning to implement the Nonstop Forwarding (NSR) feature on the customer’s core network.
After getting the configuration ready for NSR. on which router should the operator implement NSR changes?
- A . on the CE router
- B . on the ASBR router
- C . on the ABR router
- D . on the PE router
D
Explanation:
Reference: https://www.cisco.com/en/US/technologies/tk869/tk769/technologies_white_paper0900aecd801dc5e2.html
Refer to the exhibit.
The service provider operations team was alerted that hub site traffic from BGP AS 65101 to AS 65201 uses a non-primary path via the R5-R6 link. IBGP peering between R1 and R2 is up. and no fiber failure has been reported on the R2-R3 link. The team determined that the traffic flow between 10.10.10.1 and 192.168.30.1 is not considering the R1-R2-R3-R4 path.
Which action resolves this issue?
- A . Change the metric attribute to 20 with neighbor 10.10.10.5 on R1.
- B . Change the local-preference attribute to 50 with neighbor 10.10 10 5 on R1
- C . Set the local-preference to the default value with BGP neighbor 10 10.10.3 on R2 for receiving routes.
- D . Add metric 5 with BGP neighbor 10.10.10.6 on R5for receiving routes.
Refer to the exhibit.
An engineer is troubleshooting an issue with this network and notices that prefixes from R3 are missing on the R1 routing table Due to repeated ASN when the 10 0 0 0’8 prefix from R3 arrives at R1, BGP automatically rejects it There is no prefix-list on R1 which blocks the traffic from R3.
What should the engineer do to fix the problem so that BGP allows that prefix on R1?
- A . Configure R2 as a route reflector client of R1.
- B . Configure the allowas-in command on R1.
- C . Configure the next-hop-self command on R2.
- D . Configure identical confederation ASNs on R1 and R2.
An ISP has an MPLS VPN-based network with 12 PE routers.
How many peerings are required between the 12 routers if the engineer has not configured route reflectors?
- A . 60
- B . 66
- C . 78
- D . 84
DRAG DROP
Drag and drop the characteristics from the left onto the corresponding routing protocols on the right.
Explanation:
OSPF
Routing between areas is distributed through the backbone area.
It operates on the network layer
IS-IS
Backbone routers reside in any area.
It uses the system ID to identify routers on the network
Refer to the exhibit.
After troubleshooting BGP traffic steering issue, which action did the network operator take to achieve the correct effect of this configuration?
- A . Routes that have passed through AS 65517 have the local preference set to 150.
- B . Routes that have originated through AS 65517 have the local preference set to 150.
- C . Routes directly attached to AS 65517 have the local preference set to 150.
- D . Routes that have passed through AS 65517 have the local preference set to 150 and the traffic is denied.
Refer to the exhibit.
An engineer is addressing an IS-IS design issue which is running within the topology. All links are running on FastEthernet, except the link between R5 and R4, which is Gigabit Ethernet.
Which statement about the design is true?
- A . R4 prefer to reach R5 using R1 as the next hop
- B . All links have equal cost if the default metric is used
- C . R5 prefers to use R4 as the next hop for all routes
- D . R1 prefer to use R5 as the next hop to reach R4