What command was used
to generate the following output?
Codes: L - local, C - connected, S - static,
[output cut]
10.0.0.0/8 is variably subnetted, 6 subnets, 4 masks
C 10.0.0.0/8 is directly connected, FastEthernet0/3
L 10.0.0.1/32 is directly connected, FastEthernet0/3
C 10.10.0.0/16 is directly connected, FastEthernet0/2
L 10.10.0.1/32 is directly connected, FastEthernet0/2
C 10.10.10.0/24 is directly connected, FastEthernet0/1
L 10.10.10.1/32 is directly connected, FastEthernet0/1
S* 0.0.0.0/0 is directly connected, FastEthernet0/0
·
show ip
routeThe ip route command is used to display the routing table of a router.
You are viewing the
routing table and you see an entry 10.1.1.1/32. What legend code would you
expect to see next to this route?
A. C
B. L
C. S
D. D
·
B. L
In the new 15 IOS code, Cisco defines a different route called a local route.
Each has a /32 prefix defining a route just for the one address.
Which of the following
statements are true regarding the command ip route 172.16.4.0 255.255.255.0
192.168.4.2? (Choose two.)
A. The command is used to establish a static route.
B. The default administrative distance is used.
C. The command is used to configure the default route.
D. The subnet mask for the source address is 255.255.255.0.
E. The command is used to establish a stub network.
·
A.The command is used
to establish a static route.
B. The default administrative distance is used.
Although option D almost seems right, it is not; the mask is the mask used on
the remote network, not the source network. Since there is no number at the end
of the static route, it is using the default administrative distance of 1.
Using the output
shown, what protocol was used to learn the MAC address for 172.16.10.1?
Interface: 172.16.10.2 --- 0x3
Internet Address Physical Address Type
172.16.10.1 00-15-05-06-31-b0 dynamic
A. ICMP
B. ARP
C. TCP
D. UDP
·
B.ARP
This mapping was learned dynamically which means it was learned through ARP.
Which of the following
is called an advanced distance-vector routing protocol?
A. OSPF
B. EIGRP
C. BGP
D. RIP
·
B. EIGRP
Hybrid protocols use aspects of both distance vector and link stateâ€"for
example, EIGRP. Although be advised that Cisco typically just calls EIGRP an
advanced distance vector routing protocol. Do not be mislead by the way the
question is worded. Yes, I know that MAC addresses are not in a packet. You
must read the question for understanding of what they are really asking.
When a packet is
routed across a network, the ______________ in the packet changes at every hop
while the ____ does not.
A. MAC address, IP address
B. IP address, MAC address
C. Port number, IP address
D. IP address, port number
·
MAC address, IP
address
Since the destination MAC address is different at each hop, it must keep
changing. The IP address which is used for the routing process does not.
Which statement is
true regarding classless routing protocols? (Choose two.)
A. The use of discontiguous networks is not allowed.
B. The use of variable length subnet masks is permitted.
C. RIPv1 is a classless routing protocol.
D. IGRP supports classless routing within the same autonomous system.
E. RIPv2 supports classless routing.
·
B.The use of variable
length subnet masks is permitted
E.RIPv2 supports classless routing
Classful routing means that all hosts in the internetwork use the same mask and
that only default masks are in use. Classless routing means that you can use
variable length subnet masks (VLSMs).
Which two of the
following are true regarding the distance-vector and link-state routing
protocols? (Choose two.)
A. Link state sends its complete routing table out of all active interfaces at
periodic time intervals.
B. Distance vector sends its complete routing table out of all active
interfaces at periodic time intervals.
C. Link state sends updates containing the state of its own links to all
routers in the internetwork.
D. Distance vector sends updates containing the state of its own links to all
routers in the internetwork.
·
B.Distance vector
sends its complete routing table out of all active interfaces at periodic time
intervals
C. Link state sends updates containing the state of its own links to all
routers in the internetwork
The distance-vector routing protocol sends its complete routing table out of
all active interfaces at periodic time intervals. Link-state routing protocols
send updates containing the state of their own links to all routers in the
internetwork.
When a router looks up
the destination in the routing table for every single packet it is called
_____________ .
A. dynamic switching
B. fast switching
C. process switching
D. Cisco Express Forwarding
·
C.process switching
This is how most people see routers, and certainly they could do this type of
plain o packet switching in 1990 when Cisco released their very first router
and traffic was seriously slow, but not in todays networks! This process
involves looking up every destination in the routing table and finding the exit
interface for every packet.
What type(s) of route
is the following? Choose all that apply.
S* 0.0.0.0/0 [1/0] via 172.16.10.5
A. Default
B. Subnetted
C. Static
D. Local
·
C. Static
The S* shows that this is a candidate for default route and that it was
configured manually.
A network
administrator views the output from the show ip route command. A network that
is advertised by both RIP and EIGRP appears in the routing table flagged as an
EIGRP route. Why is the RIP route to this network not used in the routing
table?
A. EIGRP has a faster update timer.
B. EIGRP has a lower administrative distance.
C. RIP has a higher metric value for that route.
D. The EIGRP route has fewer hops.
E. The RIP path has a routing loop.
·
B. EIGRP has a lower
administrative distance.
RIP has an administrative distance (AD) of 120, while EIGRP has an
administrative distance of 90, so the router will discard any route with a
higher AD than 90 to that same network.
Which of the following
is NOT an advantage of static routing?
A. Less overhead on the router CPU
B. No bandwidth usage between routers
C. Adds security
D. Recovers automatically from lost routes
·
D.Recovers
automatically from lost routes
Recovery from a lost route requires manual intervention by a human to replace
the lost route.
What metric does RIPv2
use to find the best path to a remote network?
A. Hop count
B. MTU
C. Cumulative interface delay
D. Load
E. Path bandwidth value
·
Hop count
RIPv1 and RIPv2 only use the lowest hop count to determine the best path to a
remote network.
The Corporate router
receives an IP packet with a source IP address of 192.168.214.20 and a
destination address of 192.168.22.3. Looking at the output from the Corp
router, what will the router do with this packet?
Corp#sh ip route
[output cut]
R 192.168.215.0 [120/2] via 192.168.20.2, 00:00:23, Serial0/0
R 192.168.115.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0
R 192.168.30.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0
C 192.168.20.0 is directly connected, Serial0/0
C 192.168.214.0 is directly connected, FastEthernet0/0
A. The packet will be discarded.
B. The packet will be routed out of the S0/0 interface.
C. The router will broadcast looking for the destination.
D. The packet will be routed out of the Fa0/0 interface.
·
The packet will be
discarded.
RIPv1 and RIPv2 only use the lowest hop count to determine the best path to a
remote network.
If your routing table
has a static, an RIP, and an EIGRP route to the same network, which route will
be used to route packets by default?
A. Any available route
B. RIP route
C. Static route
D. EIGRP route
E. They will all load-balance
·
C.Static route
Static routes have an administrative distance of 1 by default. Unless you
change this, a static route will always be used over any other dynamically
learned route. EIGRP has an administrative distance of 90, and RIP has an
administrative distance of 120, by default.
Which of the following
is an EGP?
A. RIPv2
B. EIGRP
C. BGP
D. RIP
·
C.BGP
BGP is the only EGP listed.
Which of the following
is an advantage of static routing?
A. Less overhead on the router CPU
B. No bandwidth usage between routers
C. Adds security
D. Recovers automatically from lost routes
·
D. Recovers
automatically from lost routes
Recovery from a lost route requires manual intervention by a human to replace
the lost route. The advantages are less overhead on the router and network, as
well as more security.
What command produced
the following output?
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.10.1 YES manual up up
FastEthernet0/1 unassigned YES unset administratively down down
Serial0/0/0 172.16.10.2 YES manual up up
Serial0/0/1 unassigned YES unset administratively down down
A. show ip route
B. show interfaces
C. show ip interface brief
D. show ip arp
·
C. show ip interface
brief
The show ip interface brief command displays a concise summary of the
interfaces.
In the following
command what does the 150 at the end of the command mean?
Router(config)#ip route 172.16.3.0 255.255.255.0 192.168.2.4 150
A. Metric
B. Administrative distance
C. Hop count
D. Cost
·
B. Administrative
distance
The 150 at the end changes the default administrative distance (AD) of 1 to
150.
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