In a routing table, what is an optional entry that is used when no explicit path to a destination is found?
static route
directly connected route
OSPF route
default route
default route
Which two statements describe key functions of a router? (Choose two.)
path determination
packet forwarding
log collection
frame switching
signal regeneration
path determination
packet forwarding
What does the letter D that is associated with the following routing table entry represent?
RouterA# show ip route
D 192.168.20.0/24 [90/156160] via 10.1.1.1, 00:01:23, GigabitEthernet0/0
<… output omitted …>
The route is learned by OSPF.
The route is learned by EIGRP.
The route is static.
The route is learned by DMVPN.
The route is learned by EIGRP.
Which three options are Layer 2 Ethernet characteristics? (Choose three.)
Ethernet uses MAC addresses.
Layer 2 addressing identifies end devices in the LAN.
Layer 2 enables the packet to be carried by the local media across each segment.
Ethernet uses IPv4 addresses.
Layer 2 identifies applications in the LAN.
Ethernet uses MAC addresses.
Layer 2 addressing identifies end devices in the LAN.
Layer 2 enables the packet to be carried by the local media across each segment.
Host A with an IPv4 address 192.168.99.15/24 wants to send several packets to several destination IPv4 addresses listed here. Which address requires the use of a default gateway?
192.168.99.17/24
192.168.40.39/24
192.168.99.39/24
192.168.99.167/24
192.168.40.39/24
Which two features does ARP provide? (Choose two.)
mapping IPv4 addresses to applications on a network
mapping IPv4 addresses to MAC addresses on a network
locally storing DLCIs that are learned via ARP
mapping MAC addresses to DLCIs on a network
locally storing MAC addresses that are learned via ARP
mapping IPv4 addresses to MAC addresses on a network
locally storing MAC addresses that are learned via ARP
Which troubleshooting step would you take if you wanted to check the IPv4 stack on your own device?
Ping the loopback address.
Ping the local host.
Ping the default gateway.
Ping the remote server.
Ping the local host.
What are the three basic purposes of a ping test? (Choose three.)
test reachability
test RTT
test packet loss
test MTU on the path
test hops in the path
test operation system running on each hop
test reachability
test RTT
test packet loss
Which verification method would you typically use to verify that you have a bad cable?
top-down method
bottom-up method
follow-the-path method
divide-and-conquer method
swap-components method
bottom-up method
Where is the running configuration of the router temporarily stored while the router is powered on?
RAM
Flash memory
NVRAM
ROM
RAM
Which statement correctly describes the role of a router?
Routers are responsible only for reaching hosts that are in the local network.
Routers use a MAC table to route between networks.
Routers are required to reach hosts that are not in the local network.
Routers use an ARP table to route between networks.
Routers are required to reach hosts that are not in the local network.
According to the command output, how are packets that are bound for the network 192.168.2.0 forwarded?
RouterX# show ip route
D 192.168.1.0/24 [90/25789217] via 10.1.1.1
R 192.168.2.0/24 [120/4] via 10.1.1.2
O 192.168.3.0/24 [110/229840] via 10.1.1.3
via 10.1.1.2, an IPv4 address on this router (RouterX)
via 10.1.1.2, an IPv4 address on a remote router
via 10.1.1.3 an IPv4 address on a remote router
via 10.1.1.3, an IPv4 address on this router (RouterX)
via 10.1.1.2, an IPv4 address on a remote router
What is the default administrative distance for OSPF?
110
115
90 for internal route and 170 for external route
170 for internal route and 90 for external route
110
Which Cisco IOS command do you use to display the ARP table on a Cisco device?
show arp table
show -a
show ip arp
arp -a
show ip arp
Which two statements regarding ARP are true? (Choose two.)
A device can use ARP to assign the MAC addresses to dynamic NICs.
ARP entries are permanent.
ARP entries are not permanent.
A device can use ARP to assign an IPv4 address to the requester.
Devices can exchange entire ARP tables.
ARP tables are created and maintained dynamically.
ARP entries are not permanent.
ARP tables are created and maintained dynamically.
What is used by a router to determine where to forward data?
routing table
ARP table
MAC address table
OSPF database
routing table
What are two possible sources of fiber media issues? (Choose two.)
wiring becomes damaged
macrobend losses
new EMI sources are introduced
traffic patterns change
splice losses
Submit
wiring becomes damaged
macrobend losses
Which option indicates errors, such as collisions, during the transmission of a frame?
input queue drops
output queue drops
input errors
output errors
output errors
What is the ICMP type for the echo reply packets?
1
0
2
3
0
