1. What is the purpose of a
routing protocol?
*It allows a router to share information about known networks
with other routers.
2. Why is fast convergence
desirable in networks that use dynamic routing protocols?
*Routers may make incorrect forwarding decisions until the
network has converged.
3. In which situation would a
company register for its own autonomous system number (ASN)?
*when the company uses two or more ISPs
4. What term refers to a group
of networks that uses the same internal routing policies and is controlled by a
single administrative authority?
*autonomous system
5. Which protocol is an
exterior routing protocol?
*BGP
6. What device enables an ISP
to connect with other ISPs to transfer data?
*border gateway router
7. Which part of an IP packet
does the router use to make routing decisions?
*destination IP address
8. What statement is true
regarding an AS number?
*AS numbers are controlled and registered for Internet use.
9. Which routing protocol is
used to exchange data between two different ISPs?
*BGP
10. 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 RIP route
11. 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?
*immediately
12. What information is
included in RIPv2 routing updates that is not included in RIPv1 updates?
*subnet mask
13. What two types of
businesses would benefit from registering as their own autonomous systems?
(Choose two.)
*a global business with connections to multiple local ISPs
*a medium-sized nationwide business with Internet
connectivity through different ISPs
14. Which two statements
describe static routes? (Choose two.)
*They require manual reconfiguration to accommodate network
changes.
*They are identified in the routing table with the prefix S
15. What is the difference
between interior and exterior routing protocols?
*Interior routing protocols are used to communicate within a
single autonomous system.
16. Refer to the exhibit.
Which configuration command or commands contributed to the output that is shown?
*routerA(config-router)# network 192.168.3.0
17. Refer to the exhibit. All
of the routers are running RIP. There are two paths from router A to the
192.168.3.0 network. Based on the output of the show ip route command on router
A, which route was entered into the routing table and why?
*A,B,C,D because it has the lowest metric
18. What is the purpose of the
network command in configuring RIP?
*to identify the directly connected networks that will be
announced in RIP updates
19. Refer to the exhibit. If
connectivity between the two hosts is maintained, what is the maximum number of
RIP routers that can be in the path from HostA to HostB?
*15
20. Refer to the exhibit.
Router B receives a packet with a destination address of 10.16.1.97. What will
router B do?
*use the default route
1. Which command is used
to view the RIP routing protocol settings and configuration?
show version
show ip route
show interface
show ip protocols
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 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
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
EIGRP
OSPF
RIP v2
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. 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
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
DSLAM
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
EIGRP
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
25.
Refer to the exhibit. All of the routers are running RIP. There are two paths
from router A to the 192.168.3.0 network. Based on the output of the show ip
route command on router A, which route was entered into the routing table and
why?
A,B,C,D because it has the lowest administrative distance
A,E,F,G,D because it has the lowest administrative distance
A,B,C,D because it has the
lowest metric
A,E,F,G,D because it has the lowest metric
26. A
network is converged and the routing tables are complete. When a packet needs
to be forwarded, what is the first criterion used to determine the best path in
the routing table?
the route with the highest bandwidth
the route with the smallest administrative distance
the route with the longest
address and mask match to the destination
the route with the best combination of administrative distance and lowest cost
27.
Refer to the exhibit. If connectivity between the two hosts is maintained, what
is the maximum number of RIP routers that can be in the path from HostA to HostB?
14
15
16
17
28. What
is the purpose of the network command in 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 the directly connected
networks that will be announced in 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
29.
Refer to the exhibit. Router B receives a packet with a destination address of
10.16.1.97. What willrouter B do?
drop the packet
use the default route
forward the packet via the route to 10.16.1.0
forward the packet via the route to 10.16.1.64