getcertified4sure.com

100% Correct 642-887 Exam Dumps 2021




Want to know 642-887 Free Practice Questions features? Want to lear more about 642-887 Braindumps experience? Study 642-887 Dumps Questions. Gat a success with an absolute guarantee to pass Cisco 642-887 (Implementing Cisco Service Provider Next-Generation Core Network Services (SPCORE)) test on your first attempt.

Online 642-887 free questions and answers of New Version:

NEW QUESTION 1
Which three options are class maps able to match? (Choose three.)

  • A. match access-group
  • B. match protocol http url "*cisco"
  • C. match destination-port
  • D. match DSCP
  • E. match all
  • F. match mac-address

Answer: ABD

NEW QUESTION 2
A customer MPLS domain recently required an excessive time to reconverge In response, a high availability solution will be deployed. Which command set should be issued to improve LDP high availability on IOS XE instances?
A)
642-887 dumps exhibit
B)
642-887 dumps exhibit
C)
642-887 dumps exhibit
D)
642-887 dumps exhibit

  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D

Answer: C

NEW QUESTION 3
Refer to the exhibit.
642-887 dumps exhibit
IT administrators report packet loss on the critical applications coming with CoS 4. Which option is the appropriate configuration to have a lower drop probability when the packets are processed using
DSCP values?

  • A. set ip dscp af22
  • B. set ip dscp af41
  • C. set ip dscp af13
  • D. set ip dscp af32

Answer: B

NEW QUESTION 4
DRAG DROP
642-887 dumps exhibit

    Answer:

    Explanation: 1) Build RIB
    2) Assign labels
    3) Advertise Labels 4)Build LFIB
    1) Build RIB
    2) Assign labels
    3) Advertise Labels
    4) Build LFIB

    NEW QUESTION 5
    When implementing Cisco MPLS TE, the constrained-based path calculations will use which value as the TE cost of each link within the MPLS domain?

    • A. By default, it will use the IGP metric, or each link can be assigned a specific value using the admin-weight command.
    • B. It can only use the IGP metric as the TE cost.
    • C. It will use the interface bandwidth as the TE cost.
    • D. Each link must be assigned a TE cost using the metric command.

    Answer: A

    NEW QUESTION 6
    Which Cisco IOS XR high-availability feature is used to prevent routes from being used before LDP converges?

    • A. LDP session protection
    • B. LDP-IGP synchronization
    • C. BFD
    • D. IGP session protection

    Answer: B

    NEW QUESTION 7
    Scenario:
    642-887 dumps exhibit
    642-887 dumps exhibit
    642-887 dumps exhibit
    642-887 dumps exhibit
    From the PE8 router, how many total prefixes for have an incoming local label assigned (including the imp-null)?

    • A. 45
    • B. 21
    • C. 66
    • D. 22

    Answer: B

    Explanation: On PE8 issue: show mpls ip binding summary and look at "assigned in labels". That value is the correct answer NOT "learned out label".
    642-887 dumps exhibit

    NEW QUESTION 8
    Which method maps MPLS EXP bit 5 to COS 5 on Cisco IOS XE?

    • A. configure terminal class-map match expmatch mpls experimental topmost 5exitpolicy-map EXP2Cos class expset cos 5 exitclass class-default random-detecinterface fastethernet 0/0 service-policy output EXP2Cos
    • B. configure terminalclass-map match expmatch mpls experimental topmost 5 exitpolicy-map EXP2Cos class expset cos 5 exitclass class-default random-detecinterface fastethernet 0/0 service-policy input EXP2Cos
    • C. configure terminal class-map match exp match mpls cos 5 exitpolicy-map EXP2Cos class expset mpls experimental topmost 5 exitclass class-default random-detecinterface fastethernet 0/0 service-policy output EXP2Cos
    • D. configure terminalclass-map match exp match mpls cos 5 exitpolicy-map EXP2Cos class expset mpls experimental topmost 5 exitclass class-default random-detecinterface fastethernet 0/0 service-policy output EXP2Cos exitcommit
    • E. configure terminalip access-list 101 permit ip any any mpls experimental 5 class-map match expmatch access-group 101 exitpolicy-map EXP2Cos class expset cos 5 exitclass class-default random-detecinterface fastethernet 0/0 service-policy output EXP2Cos exit

    Answer: A

    NEW QUESTION 9
    On a Cisco router, when will the router actually reserve the bandwidth for the MPLS traffic engineering tunnel?

    • A. during the autoroute process
    • B. during constraint-based routing calculations
    • C. on the receipt of the RSVP Path message
    • D. on the receipt of the RSVP Resv message

    Answer: D

    NEW QUESTION 10
    Scenario:
    642-887 dumps exhibit
    642-887 dumps exhibit
    642-887 dumps exhibit
    642-887 dumps exhibit
    On P2IOS-XR router what is targeted LDP hellos hold time on LDP session with 10.0.1.1:0 LDP ID?

    • A. 90 sec
    • B. 10 sec
    • C. 3 sec
    • D. 8.6 sec

    Answer: A

    Explanation: Issue on P2: show mpls ldp discovery (details). Ps: The command show mpls ldp parameter is not Implemented.
    Look at the end, you will see the hello and the holdtime values for the target neighbour. Be careful he is asking for "targeted LDP hellos hold time". No other command will work!!! At the end of the show result you will see something looks like the following:
    LDP discovery sources:
    Targeted Hello 10.0.2.1 -> 10.0.1.1 active, passive;
    Hello: 30 sec
    holdtime: 90 sec

    NEW QUESTION 11
    According to the Intserv model, which two options are traffic-specific parameters? (Choose two.)

    • A. token bucket
    • B. calculated average queue size
    • C. minimum policed unit
    • D. traffic marking
    • E. rate policing

    Answer: AC

    NEW QUESTION 12
    On the Cisco IOS XR, which MQC configuration is different than on the Cisco IOS and IOS XE?

    • A. On the Cisco IOS XR, WRED can only be applied in the output direction.
    • B. On the Cisco IOS XR, marking can only be applied in the input direction.
    • C. On the Cisco IOS XR, LLQ can be applied in the input or output direction.
    • D. On the Cisco IOS XR, LLQ can use up to four priority queues: level 1, level 2, level 3, and level 4.

    Answer: C

    NEW QUESTION 13
    Which three options can an engineer select for a traffic policer in case the traffic rate is less than the conform burst? (Choose three.)

    • A. Drop the packet.
    • B. Transmit the packet.
    • C. Set the CoS value and drop the packet.
    • D. Set the DSCP value and drop the packet.
    • E. Keep the packet in the buffer.
    • F. Set the QoS group and drop the packet.

    Answer: ABF

    NEW QUESTION 14
    DRAG DROP
    642-887 dumps exhibit

      Answer:

      Explanation: Applies the QOS policy to interface—service policy
      Defines the PHB qos action for each of the different traffic classes—policy map Defines the making parameters for classifying packets into service classes—class-map
      Applies the QOS policy to interface--service policy
      Defines the PHB qos action for each of the different traffic classes--policy map Defines the making parameters for classifying packets into service classes--class-map

      NEW QUESTION 15
      When implementing MPLS TE tunnels on Cisco IOS XR routers, what is the tunnel setup and hold priority value range, and which value has the highest priority?

      • A. 0-63, where 0 is the highest priority
      • B. 0-63, where 63 is the highest priority
      • C. 0-7, where 0 is the highest priority
      • D. 0-7, where 7 is the highest priority

      Answer: C

      NEW QUESTION 16
      Referring to the Cisco IOS XR show command output exhibit, what are three possible reasons that the GigabitEthernet0/1/0/10 LDP IGP sync status is not ready? (Choose three.)
      642-887 dumps exhibit

      • A. GigabitEthernet0/1/0/10 is not configured to run LDP.
      • B. Graceful restart is not configured on the peer.
      • C. The LDP neighbor on GigabitEthernet0/1/0/10 is not up.
      • D. The OSPF neighbor on GigabitEthernet0/1/0/10 is not up.
      • E. LDP is up on GigabitEthernet0/1/0/10, but no label bindings have been received from the peer.
      • F. GigabitEthernet0/1/0/10 is a member link of Bundle-Ether9000.

      Answer: CDE

      100% Valid and Newest Version 642-887 Questions & Answers shared by Certifytools, Get Full Dumps HERE: https://www.certifytools.com/642-887-exam.html (New 184 Q&As)