300-510 Practice Test Questions Updated 177 Questions
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NEW QUESTION 93
A network engineer is troubleshooting OSPF multiarea. Which Cisco IOS XR feature should the engineer use in order to streamline OSPF issue?
- A. DR support for topology management
- B. routing process enabled by default on all interfaces
- C. show lp ospf topology command
- D. hierarchical CLI
Answer: C
NEW QUESTION 94
Refer to the exhibit.
Refer to the exhibit The branch office in area 10 is connected to HQ via Frame Relay uplinks with bandwidth constraints After a recent implementation of QoS on the R2 and R3 networks the system has been logging %SYS-2-MALLOCFAIL: Memory allocation of 65536 bytes failed from 0x224E321, alignment 0 messages To reduce traffic load and memory utilization on R2 and R3 the network engineer configured R1 to announce only one user subnet per location by issuing the summary address 192.168.0.0 255.255.248.0 command en R1 However, the engineer noticed that router R2 still has two routes and a summary address from HQ and R3 also has two routes from HQ Which two actions must the engineer take on R1 to fix the issue so that only one route is announced' (Choose two.)
- A. Redistribute both routes into the ISIS process.
- B. Configure RI as a Level 1 device.
- C. Configure a summary route for Level 1-Level 2 devices.
- D. Configure the subnet range with the network command under the IS-IS process.
- E. Configure a summary route for Level 1 devices.
Answer: C,E
NEW QUESTION 95
Refer to the exhibit.
A network engineer implemented this segment routing configuration. Which statement about the output is true?
- A. The device must be reloaded for these ranges to be allocated and used.
- B. This range conflicts with the segment routing local block range.
- C. A nondefault segment routing global block range is being used on this device.
- D. The default segment routing global block range is being used on this device.
Answer: C
NEW QUESTION 96
Refer to the exhibit.
Router 1 has attempted to establish a Cisco MPLS TE tunnel to router 2, but the tunnel has failed. Which statement about this configuration is true?
- A. Router 1 must have Cisco MPLS TE enabled on interface gigabitethernet0/1
- B. Router 2 must have a tunnel interface created with router 1 as the destination
- C. Router 1 must define an explicit path to router 2
- D. Router 1 and router 2 must define the RSVP bandwidth reserved on the physical interfaces
Answer: A
NEW QUESTION 97
After you change the IP address on an IOS XR router, you cannot ping the new address.
Which step did you forget to complete?
- A. save the running configuration
- B. roll back the configuration
- C. merge the configuration
- D. commit the configuration
Answer: D
NEW QUESTION 98 
Refer to the exhibit. Which statement about this configuration is true?
- A. Router 1 sends and receives multiple best paths from neighbor 192.168.1.1
- B. Router 1 sends up to two paths to neighbor 192.168.1.1 for all routes
- C. Router 1 receives only the best path from neighbor 192.168.1.1
- D. Router 1 receives up to two paths from neighbor 192.168.1.1 for all routes in the same AS
Answer: A
NEW QUESTION 99
When deploying a nationwide network of routers, what is the benefit of using BGP confederations?
- A. availability
- B. security
- C. scalability
- D. automatability
Answer: C
NEW QUESTION 100
Refer to the exhibit.
A network operator is getting the route for 10.11.11 0/24 from two upstream providers on
#XR3. The network operator must configure #XR3 to force the 10.11.11.0/24 prefix to route via next hop of
10.0.0.9 as primary when available. Which of these can the operator use the routing policy language for, to enforce this traffic forwarding path?
- A. higher local preference on the prefix coming from 192.168.0.1
- B. weight of 0 on the prefix coming from 192.168.0.2
- C. lower local preference on the prefix coming from 192.168.0.2
- D. weight of 100 on the prefix coming from 192.168.0.1
Answer: B
NEW QUESTION 101 
Refer to the exhibit. Router 1 is connected to router 2 on interface TenGigE0/1. Which interface provides the alternate path to 172.16.200.9/32 when the link between router 1 and router 2 goes down?
- A. A backup path must be statically installed
- B. A primary path must be manually installed
- C. TenGigE0/2 interface provides the alternate path
- D. TenGigE0/1 interface provides the alternate path
Answer: C
NEW QUESTION 102
A network engineer of an ISP using Cisco IOS XR routers wants to limit the number of prefixes that BGP peers can accept.
To accomplish this task, the command maximum- prefix 1000 is used.
Which two results of this configuration are expected? (Choose two.)
- A. The BGP peer tries to reestablish the session after one minute.
- B. A BGP peer ceases when it receives 1001 prefixes.
- C. A BGP peer ceases when it receives 1000 prefixes.
- D. A warning message displays by default when 850 prefixes are received.
- E. A BGP peer resets when it receives 1001 prefixes.
- F. A warning message displays by default when 750 prefixes are received.
- G. A BGP peer resets when it receives 1000 prefixes.
Answer: B,F
NEW QUESTION 103
Refer to the exhibit.
Refer to the exhibit. A network engineer just replaced five routers on this OSPF network. When the routing protocol is brought up, R5 cannot reach routes that originate on R1. The engineer verified that all connected links have established neighbor relationships. R5 reaches routes originating on R3 and R4. Which action resolves the issue?
- A. Configure OSPF to have a contiguous Area O.
- B. Configure an OSPF virtual link to bridge Area O on routers R3 and R4.
- C. Configure automatic neighbor discovery on RI and R5.
- D. Configure each link to be point-to-point.
Answer: B
NEW QUESTION 104
Refer to the exhibit.
A network engineer implemented this segment routing configuration. Which statement about the output is true?
- A. The device must be reloaded for these ranges to be allocated and used.
- B. This range conflicts with the segment routing local block range.
- C. A nondefault segment routing global block range is being used on this device.
- D. The default segment routing global block range is being used on this device.
Answer: C
NEW QUESTION 105
Refer to the exhibit.
A network operator is working to filter routes from being advertised that are covered under an aggregate announcement. The receiving router of the aggregate announcement block is still getting some of the more specific routes plus the aggregate. Which configuration change ensures that only the aggregate is announced now and in the future if other networks are to be added?
- A. Configure the summary-only keyword on the aggregate command
- B. Filter the routes on the receiving router
- C. Set each specific route in the AGGRO policy to remove instead of suppress-route
- D. Set each specific route in the AGGRO policy to drop instead of suppress-route
Answer: A
NEW QUESTION 106
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. R1 prefer to use R5 as the next hop to reach R4
- B. R5 prefers to use R4 as the next hop for all routes
- C. R4 prefer to reach R5 using R1 as the next hop
- D. All links have equal cost if the default metric is used
Answer: D
NEW QUESTION 107
Refer to the exhibit.
Refer to the exhibit. An engineer working for a private telecommunication company with an employee id: 4233:46:364 notices that the customer network going through AS30-AS65001-AS65000 is experiencing packet drops when it accesses an application at 172.16.20.1/32 In the DC cloud. The BGP link between AS20 and AS30 is inaccessible because of a fiber cut. Routers RL, RN, and RZ are configured with confederation identifier 10. Which action resolves this Issue?
- A. Option C
- B. Option D
- C. Option B
- D. Option A
Answer: D
NEW QUESTION 108
What is the role of segment routing mapping server?
- A. It advertises a local SID mapping policy to all the mapping clients.
- B. It reads and translates remotely received SIDs from other mapping servers to create SID mapping entries.
- C. It selects multiple mapping entries to create overlapping active mapping policies.
- D. It works with IGP instances to calculate the prefix-SIDs in the absence of a mapping policy.
Answer: A
NEW QUESTION 109
Refer to the exhibit.
Which LSA type is indicated by this router output?
- A. type 4 LSA
- B. type 2 LSA
- C. type 1 LSA
- D. type 3 LSA
Answer: C
NEW QUESTION 110
Refer to the exhibit. An engineer has successfully fixed BGP peering issue. R1 has an established eBGP peering with R2 and R3.
Which mechanism should the engineer apply in order to steer the traffic correctly?
- A. The local preference attribute can be applied on R3 to influence AS 65513 to use AS 65515 as the secondary path.
- B. The weight attribute can be applied on R2 to influence AS 65513 to use AS 65515 as the primary path.
- C. The IGP metric can be manipulated on R1 to allow traffic to be load balanced between R2 and R3.
- D. The MED attribute can be applied on R2 to influence R1 to use it as the primary path.
Answer: C
NEW QUESTION 111
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