CCNA Discovery 2: DsmbISP Chapter 6 Exam Answers v4.0

1. Refer to the exhibit. Which configuration command or commands contributed to the output that is shown?

  • routerA(config-router)# no version 2
  • routerA(config)# interface fa0/0
  • routerA(config-if)# ip address
  • routerA(config-router)# network
  • routerA(config)# no ip default-gateway

2. Refer to the exhibit. What is the maximum number of RIP routers that could separate HostA and HostB and still leave the hosts with connectivity to each other?

  • 14
  • 15
  • 16
  • 17

3. In which situation would a company register for its own autonomous system number (ASN)?

  • when the company’s ISP adds connection points to the Internet
  • when additional routers are added to the corporate internetwork
  • when more than one interior routing protocol is used
  • when the company uses two or more ISPs

4. Consider this routing table entry

R [120/1] via 00:00:27 Serial0/1

What type of route is this?

  • a static route
  • a default route
  • a RIP route
  • an OSPF route
  • an EIGRP route
  • a directly-connected route

5. What is the difference between interior and exterior routing protocols?

  • Exterior routing protocols are only used by large ISPs. Interior routing protocols are used by small ISPs.
  • Interior routing protocols are used to route on the Internet. Exterior routing protocols are used inside organizations.
  • Exterior routing protocols are used to administer a single autonomous system. Interior routing protocols are used to administer several domains.
  • Interior routing protocols are used to communicate within a single autonomous system. Exterior routing protocols are used to communicate between multiple autonomous systems.

6. What information is included in RIPv2 routing updates that is not included in RIPv1 updates?

  • metric
  • subnet mask
  • area identification
  • hop count
  • autonomous system number

7. Which routing protocol is used to exchange data between two different ISPs?

  • BGP
  • OSPF
  • RIP v2

8. Which command is used to view the RIP routing protocol settings and configuration?

  • show version
  • show ip route
  • show interface
  • show ip protocols

9. Refer to the exhibit. If all routers are running RIP and network goes down, when will R3 learn that the network is no longer available?

  • in 30 seconds
  • in 60 seconds
  • in 90 seconds
  • Immediately

10. What statement is true regarding an AS number?

  • AS numbers are controlled and registered for Internet use.
  • Interior routing protocols require registered AS numbers.
  • ISPs require all customers to have registered AS numbers.
  • All routers at an ISP must be assigned the same AS number.

11. What is the purpose of the network command used when configuring RIP?

  • to specify whether RIPv1 or RIPv2 will be used as the routing protocol
  • to allow the router to monitor RIP updates that occur on other routers
  • to identify which networks on the router will send and receive RIP updates
  • to configure the IP address on an interface that will use RIP
  • to identify all of the remote networks that should be reachable from the router

12. Which command would a network administrator use to determine if the routers in an enterprise have learned about a newly added network?

  • router# show ip address
  • router# show ip route
  • router# show ip networks
  • router# show ip interface brief
  • router# debug ip protocol
  • router# debug rip update

13. What is the purpose of a routing protocol?

  • It is used to build and maintain ARP tables.
  • It provides a method for segmenting and reassembling data packets.
  • It allows an administrator to devise an addressing scheme for the network.
  • It allows a router to share information about known networks with other routers.
  • It provides a procedure for encoding and decoding data into bits for packet forwarding.

14. What device enables an ISP to connect with other ISPs to transfer data?

  • border gateway router
  • web server
  • interior router

15. Which command will display RIP routing updates as they are sent and received?

  • show ip route
  • show ip rip
  • debug ip rip
  • show ip protocols
  • show ip rip database

16. Which part of an IP packet does the router use to make routing decisions?

  • source IP address
  • source MAC address
  • destination IP address
  • destination MAC address

17. What two types of businesses would benefit from registering as their own autonomous systems? (Choose two.)

  • a home business with one ISP connection
  • a global business with connections to multiple local ISPs
  • a medium-sized nationwide business with Internet connectivity through different ISPs
  • a large enterprise with two connections to the same ISP
  • a small ISP with a single Internet connection through a larger ISP

18. Which command will display RIP activity as it occurs on a router?

  • debug ip rip
  • show ip route
  • show ip interface
  • show ip protocols
  • debug ip rip config
  • show ip rip database

19. Why is fast convergence desirable in networks that use dynamic routing protocols?

  • Routers will not allow packets to be forwarded until the network has converged.
  • Hosts are unable to access their gateway until the network has converged.
  • Routers may make incorrect forwarding decisions until the network has converged.
  • Routers will not allow configuration changes to be made until the network has converged.

20. Which two statements describe static routes? (Choose two.)

  • They are created in interface configuration mode.
  • They require manual reconfiguration to accommodate network changes.
  • They automatically become the default gateway of the router.
  • They are identified in the routing table with the prefix S
  • They are automatically updated whenever an interface is reconfigured or shutdown.

21. Which two statements or sets of statements describe differences between link-state and distance vector routing protocols? (Choose two.)

  • Link-state routing protocols routinely use more bandwidth for updates than do distance vector routing protocols.
  • Distance vector routing protocols update all routers at one time. Link-state routing protocols update one router at a time.
  • Link-state routers only know about directly connected routers. Distance vector routers know about every router in the network.
  • Link-state routing protocols update when a change is made. A network using distance vector routing protocols only updates at a specific interval.
  • Distance vector routing protocols have limited information about the entire network. Link state routing protocols know about all routers in the network.
  • In case of similar topologies, networks using link-state routing protocols typically converge more rapidly than do networks using distance vector routing protocols.

22. Which protocol is an exterior routing protocol?

  • BGP
  • OSPF
  • RIP

23. Hosts on two separate subnets cannot communicate. The network administrator suspects a missing route in one of the routing tables. Which three commands can be used to help troubleshoot Layer 3 connectivity issues? (Choose three.)

  • Ping
  • show arp
  • Traceroute
  • show ip route
  • show interface
  • show cdp neighbor detail

24. What term refers to a group of networks that uses the same internal routing policies and is controlled by a single administrative authority?

  • Internet
  • intranet
  • virtual private network
  • autonomous system
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5 years ago

A new junior network intern connects a laptop to an access layer switch in the wiring closet. After configuring a terminal emulation program, the intern presses the Enter key, and the S1_ATC_E2> prompt appears. What could have been done to better protect the switch?
Create a banner message.
Create a console password.
Use the enable secret command.
Use the service password-encryption command.