1. Which protocol is an exterior routing protocol?
BGP
EIGRP
OSPF
RIP
2. 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
3. Consider this routing table entry
R 172.16.1.0/24 [120/1] via 200.1.1.1 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
4. 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
5. Which routing protocol is used to exchange data between
two different ISPs?
BGP
EIGRP
OSPF
RIP v2
6. 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
7. 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
8. 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 172.19.0.0
255.255.0.0
routerA(config-router)# network 192.168.3.0
routerA(config)# no ip default-gateway
9. 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.
10. Refer to the exhibit. If all routers are running RIP
and network 10.0.0.0 goes down, when will R3 learn that the network is no
longer available?
in 30 seconds
in 60 seconds
in 90 seconds
Immediately
11. 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.
12. 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
13. 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
14. 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
15. 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.
16. 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
17. Which command is used to view the RIP routing protocol
settings and configuration?
show version
show ip route
show interface
show ip protocols
18. 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
19. 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.
20. 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
21. 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.
22. What device enables an ISP to connect with other ISPs
to transfer data?
border gateway router
DSLAM
web server
interior router
23. 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.
24. 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
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