1. Home
  2. Cisco
  3. 642-885

Cisco 642-885 Online Practice Questions and Exam Preparation

642-885 Exam Details

  • Exam Code
    :642-885
  • Exam Name
    :Deploying Cisco Service Provider Advanced Routing
  • Certification
    :Cisco Certifications
  • Vendor
    :Cisco
  • Total Questions
    :131 Q&As
  • Last Updated
    :Jun 15, 2024

Cisco 642-885 Online Questions & Answers

  • Question 1:

    Which three statements are correct regarding PIM-SM? (Choose three.)

    A. There are three ways to configure the RP: Static RP, Auto-RP, or BSR
    B. PIM-SM only uses the RP rooted shared tree and has no option to switch over to the shortest path tree
    C. Different RPs can be configured for different multicast groups to increase RP scalability
    D. Candidate RPs and RP mapping agents are configured to enable Auto-RP
    E. PIM-SM uses the implicit join model

  • Question 2:

    Refer to the exhibit.

    XR4 must protect itself from a DOS attack against its BGP process from R1 by using the TTL security feature. Which configuration achieves this goal?

    A. router bgp 100 neighbor 10.10.14.1 ttl-security
    B. router bgp 100 neighbor 10.10.14.1 ttl-security hops 1
    C. router bgp 100 neighbor 10.10.14.1 ttl-security hops 254
    D. router bgp 100 neighbor 10.10.14.1 ttl-security hops 255

  • Question 3:

    Refer to the Cisco IOS-XR BGP configuration exhibit.

    Identify two configuration errors. (Choose two.)

    A. The neighbor-group efg is missing the ebgp-multihop 2 configuration
    B. The ttl-security configuration command is missing the option to set the number of hops
    C. The passall route policy is wrong
    D. The route-policy passall in and route-policy passall out commands should be configured under the neighbor-group efg instead of the af-group abc
    E. The maximum-prefix 10 configuration should be configured under the af-group abc instead of the neighbor-group efg

  • Question 4:

    Which three statements are correct regarding the various multicast groups? (Choose three.)

    A. Currently there is no source sending traffic to the 224.1.1.1 multicast group
    B. PE5 has a Null OILforthe (*,224.0.1.40) entry
    C. PE5 has a Null OILforthe (*,224.1.1.1) entry
    D. CE5 has joined the 224.0.1.40 multicast group
    E. CE5 has a Null OILforthe (*,224.1.1.1) entry

  • Question 5:

    An engineer is enabling multicast routing across an entire core infrastructure. Which two commands enable multicast routing on Cisco IOS XE instances? (Choose two.)

    A. ip multicast-routing
    B. ip multicast-routing vrf global
    C. interface type slot/path_id ip pim sparse-mode
    D. interface type slot/path_id ip cgmp
    E. interface type slot/path_id ip pim dense-mode
    F. ip mroute-cache

  • Question 6:

    An engineer is providing DNS for IPv6 over a currently working IPv4 domain. Which three changes are needed to offer DNS functionality for IPv6? (Choose three.)

    A. Define a new record that stores the 128-bit IPv6 address.
    B. Expand the existing IP address record to allow for 128 bits.
    C. Define the IPv6 equivalent of the in-addr.arpa.com domain of the IPv4 PTR.
    D. Modify the in-addr.arpa.com domain of the IPv4 PTR.
    E. Change the query messages.
    F. Transport IPv6 query messages by using UDP.
    G. Transport IPv6 query messages by using TCP.

  • Question 7:

    Refer to the exhibit.

    Which configuration ensures that RR2 does not send the same updates to PE2 that RR1 learns via PE1?

    A. RR1 and RR2 should have different router IDs.
    B. RR1 and RR2 should have different originator IDs.
    C. RR1 and RR2 should have the same router IDs.
    D. RR1 and RR2 should have the same cluster IDs.

  • Question 8:

    Refer to the Cisco IOS DHCPv6 configuration shown in the exhibit.

    Which statement is correct?

    A. The configuration is missing a command under interface Gi0/1 to indicate to the attached hosts to use stateful DHCPv6 to obtain their IPv6 addresses
    B. The IPv6 router advertisements indicate to the attached hosts on the Gi0/1 interface to get other information besides their IPv6 address via stateless auto configuration
    C. The IPv6 DHCPv6 server pool configuration is misconfigured
    D. The DNS server address can also be imported from another upstream DHCPv6 server

  • Question 9:

    Which keyword is used in the syntax to refer to Cisco IOS XR address-family groups, session groups, or neighbor groups?

    A. inherit
    B. apply
    C. use
    D. commit

  • Question 10:

    Which statement is correct regarding MP-BGP?

    A. MP-BGP can indicate whether an advertised prefix (NLRI) is to be used for unicast routing, multicast RPF checks or for both using different SAFIs.
    B. MP-BGP uses a single BGP table to maintain all the unicast prefixes for unicast forwarding and all the unicast prefixes for RPF checks.
    C. MP-BGP can be used to propagate multicast state information, which eliminates the need to use PIM for building the multicast distribution trees.
    D. MP-BGP enables BGP to carry IP multicast routes used by MSDP to build the multicast distribution trees.

Related Exams:

Tips on How to Prepare for the Exams

Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only Cisco exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your 642-885 exam preparations and Cisco certification application, do not hesitate to visit our Vcedump.com to find your solutions here.