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Summary Routing and switching v5.0

Course
- Routing and switching v5.0
- onbekend
- 2015 - 2016
- Zelfstudie
- CCIE
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A snapshot of the summary - Routing and switching v5.0

  • Test A

  • What are the features considered with IPv6 first-hop security? 3

    RA guard
    DHCP guard
    destination guard

    RDD
  • What are three mode of PFR monitoring?
    active mode (based on Cisco SLA probes)
    passive mode (based on Netflow) 
    fast mode (based on Cisco SLA probes)
  • Which factors does PFR use to calculate the best exit path? 3
    delay
    loss
    reachability

    dlr
  • What can PFR passive monitoring measure for TCP flows? 4
    -delay
    -throughput
    -reachability 
    -packet loss
  • What is the purpose of route constraints?
    to avoid sending unnecessary BGP VPNv4 or VPNv6 updates to the PE router
  • What are the two main phases of PPPoE?
    Active discovery phase
    PPP session phase


    -Active discovery phase – PPPoE client locates a server. A session ID is assigned and the PPPoE layer is established.
    -PPP Session phase – PPP options are negotiated and authentication occurs.  
  • What is the difference between single ISIS and multi topology ISIS?
    Single topology:

    • Shares path calculation with IPv4 routing Table. Only one SPF calculation.
    • It requires 1:1 correlation of IPv4 and IPv6 interfaces i.e Ipv4 and IPv6 interfaces should be same.
      

    Multiple topology:

    • Independent path calculation from IPv4 routing table. Separate SPF calculation.
    • IPv4 and IPv6 configuration are completely different i.e IPv4 & IPv6 interfaces can be asymmetric.

    https://networkingfolks.wordpress.com/2012/01/21/isis-single-topology-vs-multiple-topology/
  • Which two statement about So0 checking in EIGRP OTP deployment is true?
    -During the import process, the So0, value in BGP is checked against the So0 value of the site map
    -During the reception of an EIGRP update, the So0 value in the EIGRP update is checked against the So0 value of the the site map on the ingress interface.

    http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ip-routing/whitepaper_C11-730404.html
  • For which configuration sections must you specify the VRF name when configuring DMVPN? 3
    crypto keyring
    tunnel interface
    physical interface
  • Which three statements about EVCs are true?
    LACP is supported on EVC ports
    PAGP is supported on EVC ports
    Spanning must use MST mode on EVC ports
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