Secrets For Passing Cisco 642-883 Exam: Latest Exam Questions 2018

If you want to place yourself in the best positions into the best IT companies, then you need to certify yourself with the most popular Cisco Certified Network Professional Service Provider 642-883 certification exam. BrainDumps2017′ Exam Questions for Cisco Deploying Cisco Service Provider Network Routing 642-883 exam is prepared by the team of subject matter experts, professionals who have been grooming students for years. We provide you latest 642-883 exam questions that are easy to learn and understandable for everyone. The 642-883 Exam Questions is available in two easy formats, PDF files that you can carry anywhere easily to read.

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642-883 exam questions, 642-883 PDF dumps; 642-883 exam dumps:: https://www.dumpsschool.com/642-883-exam-dumps.html (130 Q&A) (New Questions Are 100% Available! Also Free Practice Test Software!)

Latest and Most Accurate Cisco 642-883 Dumps Exam Questions and Answers:

Question: 21

How can you prevent multihomed customers with connections to two service providers from acting as a transit AS?

A. Enable BGP synchronization on all the customer routers
B. Use MED to influence the inbound traffic from the ISPs
C. Use static routing to the ISPs
D. Use an AS-path access-list to filter the BGP updates to the ISPs
E. Use conditional advertisements when sending BGP updates to the ISPs

Answer: D

Question: 22

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

Question: 23

On Cisco IOS XR Software, which set of commands is used to enable the gi0/0/0/1 interface for OSPF in area 0?

A. interface gi0/0/0/0
ip address 10.1.1.1 255.255.255.0
!
router ospf 1
network 10.1.1.1 0.0.0.0 area 0
B. interface gi0/0/0/0
ip address 10.1.1.1 255.255.255.0
!
router ospf 1
network 10.1.1.1 255.255.255.255 area 0
C. router ospf 1
area 0
interface GigabitEthernet0/0/0/1
D. interface gi0/0/0/0
ip address 10.1.1.1 255.255.255.0
ip ospf 1 area 0
E. router ospf 1
address-family ipv4 unicast
interface GigabitEthernet0/0/0/1 area 0
F. router ospf 1
address-family ipv4 unicast
interface GigabitEthernet0/0/0/1
area 0

Answer: C

Question: 24

Which three statements are true regarding the OSPF router ID? (Choose three.)

A. The OSPF routing process chooses a router ID for itself when it starts up.
B. The router-id command is the preferred procedure to set the router ID.
C. If a loopback interface is configured, its address will always be preferred as the router ID over any other methods.
D. After the router ID is set, it does not change, even if the interface that the router is using for the router ID goes down. The router ID changes only if the router reloads or if the OSPF routing process restarts.
E. In OSPF version 3, the OSPF router ID uses a 128-bit number.

Answer: A, B, D

Question: 25

Which two OSPF network scenarios require OSPF virtual link configuration? (Choose two.)

A. to connect an OSPF non-backbone area to area 0 through another non-backbone area
B. to connect an NSSA area to an external routing domain
C. to connect two parts of a partitioned backbone area through a non-backbone area
D. to enable route leaking from Level 2 into Level 1
E. to enable route leaking from Level 1 into Level 2
F. to enable OSPF traffic engineering

Answer: A, C

Question: 26

What is function of the RP/0/RSP0/CPU0:PE1(config-ospf)#distance Cisco IOS-XR command?

A. To modify the administrative distance of the OSPF routes
B. To modify the default seed metric of the OSPF external routes
C. To modify the OSPF default reference bandwidth
D. To modify the OSPF cost

Answer: A

Explanation:
http://www.cisco.com/en/US/docs/ios_xr_sw/iosxr_r3.8/routing/command/reference/rr38ospf.pdf

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