مقدمة في التحويل والتوجيه

اختبار الفصل ٧

اختبار محاكي

Static Routing: Concepts and Configuration

٢٥ أسئلة · اختيار من متعدد، صح/خطأ، وتوصيل. أجب ثم اضغط «تسليم الاختبار».

  1. ١

    What is the default administrative distance of a static route?

  2. ٢

    In which configuration mode is the `ip route` command entered?

  3. ٣

    A static route specifies a next-hop IP address. What is the second routing table lookup, needed to find the interface for that next hop, called?

  4. ٤

    Which prefix represents an IPv4 default route?

  5. ٥

    A floating static route is created by configuring it with:

  6. ٦

    The primary default route is learned from OSPF (AD 110). Which AD would make a static route a valid floating backup?

  7. ٧

    In `show ip route` output, what does the code S* indicate?

  8. ٨

    What happens to packets routed to the Null0 interface?

  9. ٩

    A fully specified static route includes which combination?

  10. ١٠

    Which structure does Cisco Express Forwarding build from the routing table?

  11. ١١

    For end-to-end connectivity, static routes must exist in both directions.

  12. ١٢

    Static routing generates periodic updates and maintains neighbour relationships.

  13. ١٣

    If a static route's next hop becomes unreachable, the route is removed from the routing table immediately.

  14. ١٤

    The exit interface method avoids a recursive lookup on point-to-point links.

  15. ١٥

    The permanent keyword can cause traffic to be black-holed.

  16. ١٦

    Static routing is more secure than dynamic routing partly because routes are not advertised over the network.

  17. ١٧

    A static route has a metric by default, which is used to choose between static routes.

  18. ١٨

    IPv6 static routes use CIDR notation exclusively, with no dotted-decimal mask.

  19. ١٩

    A summary static route may safely cover address space that does not exist at the branch site.

  20. ٢٠

    Static routing adapts automatically to a link failure.

  21. ٢١

    Match each route source with its code and administrative distance.

    • Connected
    • Static
    • OSPF
    • EIGRP

    الإجابات

  22. ٢٢

    Match each static route configuration method with its description.

    • Next-hop IP address
    • Exit interface
    • Fully specified
    • Host route

    الإجابات

  23. ٢٣

    Match each special static route with its purpose.

    • Default route (0.0.0.0/0)
    • Floating static
    • Null0 route
    • Permanent route

    الإجابات

  24. ٢٤

    Match each static routing advantage or disadvantage with its statement.

    • Advantage: overhead
    • Advantage: control
    • Disadvantage: failure
    • Disadvantage: scale

    الإجابات

  25. ٢٥

    Match each troubleshooting symptom or tool with what it tells you.

    • Wrong subnet mask
    • Wrong next hop
    • Missing reciprocal route
    • traceroute

    الإجابات

أجبت ٠ من ٢٥