Which layer of the hierarchical three-layer design
model combines traffic from multiple IDFs?
access
backbone
distribution
core
4
A network administrator is removing several VLANs from
a switch. When the administrator enters the no vlan 1 command, an error is received. Why did this command generate an
error?
VLANs can only be deleted by the
user who created them.
VLAN 1 can not be deleted until
another VLAN has been assigned its responsibilities.
The command was not entered
properly, which caused a syntax error to occur.
VLAN 1 can not be deleted until all
ports have been removed from it.
VLAN 1 is the management VLAN by
default and can not be deleted.
5
Refer to the exhibit. Which group of commands will
correctly configure router ABC to use OSPF?
ABC(config)# router ospf
99
ABC(config-router)# network 192.168.43.64
255.255.255.224 area 0
ABC(config-router)# network
192.168.43.248 255.255.255.248 area 0
ABC(config)# router ospf
1
ABC(config-router)# network 192.168.43.64 0.0.0.31 area
0
ABC(config-router)# network 192.168.43.248 0.0.0.3 area
0
ABC(config)# router ospf
1
ABC(config-router)# network 192.168.43.64 0.0.0.63 area
0
ABC(config-router)# network 192.168.43.248 0.0.0.3 area
0
ABC(config)# router ospf
0
ABC(config-router)# network 192.168.43.64 0.0.0.31 area
0
ABC(config-router)# network 192.168.43.248 0.0.0.3 area
0
6
Refer to the exhibit. Two Catalyst switches are
connected, and both switches have ports configured for VLANs 40 and
50 as shown. What will allow hosts on the same VLAN to communicate
with one another across the different switches?
trunking
STP
VTP
routing
7
Which characteristics of RIPv1 are different from
RIPv2? (Choose three.)
its use of the hop count
metric
its use of broadcast updates
its use of split horizon as a
stability feature
the authentication of updates
its exclusively classful
routing
its hop count maximum of
15
8
Employees of XYZ Company connect their laptop
computers to the office LAN using Ethernet ports. The Cisco switches
used in the company network are configured with port security. At
which layer of the three-layer design model do these switches
operate?
physical
distribution
data link
access
core
9
Which of the following tasks must be completed to
configure a router interface to serve the newly added network
192.168.10.64/27 and to advertise this network over RIP v2? (Choose
three.)
RIP v2 must be configured with the network command and the IP network number for the new
network.
RIP v2 must be configured with the network command and the IP host address and subnet mask for
the newly activated interface.
The router must be configured with
the ip subnet-zero command so that this network can be added
and advertised.
A network host address and subnet
mask must be applied to the newly activated interface.
The routing protocol must be
activated with the router rip and version 2 commands.
RIP v2 must be configured on the
other enterprise routers with an entry for the newly added
network.
10
Which two statements describe Spanning Tree Protocol?
(Choose two.)
It eliminates Layer 2 loops in
network topologies.
It eliminates the need for
redundant physical paths in network topologies.
It can only be used in networks in
which Layer 2 switching is in use.
It can only be used in networks
where both routers and switches are used together.
It can only be used in networks
where routers are installed.
11
Refer to the graphic. The host on VLAN 2 cannot
communicate with the host on VLAN 3. Which of the following could be
the problem based on the output of the show interface
fastethernet 0/1 command from the switch?
The switch port 1 is not set to
access mode.
The router interface connected to
switch port 1 is shut down.
The router is not configured for
trunking.
The switch port is not configured
for full duplex or a speed of 100
Mbps.
12
What is added to a bridge CAM table as a frame passes
through a switch?
source IP address
destination IP address
source MAC address
destination MAC
address
13
Refer to the routing table shown in the exhibit. What
is the meaning of the highlighted value 192?
It is the value assigned by the
Dijkstra algorithm that designates the number of hops in the
network.
It is the value used by the DUAL
algorithm to determine the bandwidth for the link.
It is the metric, which is
cost.
It is the administrative
distance.
14
Refer to the exhibit. Routers East and West are
configured using RIPv1. Both routers are sending updates about their
directly connected routes. The East router can ping the West router
serial interface and West can ping the serial interface of East.
However, neither router has dynamically learned routes from the
other. What is most likely the problem?
A gateway of last resort is
required.
Subnetting is not supported by
RIPv1.
VLSM is not supported by
RIPv1.
One of the routers needs a clock
rate on the serial interface.
15
Refer to the exhibit. What is an advantage of this
network design?
It maximizes the number of ports
available for hosts.
It provides multiple paths for
connectivity in the event of link failure.
It provides multiple paths for
Layer 2 broadcasts to circulate through the network.
It allows Spanning Tree to forward
traffic across redundant paths
simultaneously.
16
Refer to the exhibit. What will be the result of DR
elections in the OSPF network shown? (Choose three.)
R1 will be DR of the 192.168.4.0/24
network.
R2 will be DR of the 192.168.4.0/24
network.
R1 will be DR of the 192.168.5.0/24
network.
R4 will be DR of the 192.168.5.0/24
network.
R1 will be DR of the 192.168.6.0/24
network.
R3 will be DR of the 192.168.6.0/24
network.
17
What are two advantages provided by OSPF
authentication? (Choose two.)
It ensures that routing information
comes from a valid source router.
It ensures that OSPF routing
information takes priority over RIP or EIGRP updates.
It encrypts routing tables to
prevent unauthorized viewing.
It reduces OSPF information
exchange overhead.
It prevents routing information
from being falsified in transit.
18
Refer to the exhibit. Each switch is shown with its
MAC address. Which switch will be elected as the spanning-tree root
bridge if the switches are configured with their default priority
values?
switch A
switch B
switch C
switch D
switch E
switch
F
19
Refer to the graphic. Switch 2 has computers attached
that belong to VLAN 2. Switch 3 has computers attached that belong
to VLAN 3. Switch 1 is a Cisco 2926G Layer 3 switch that has a route
module installed. Switch 1 provides connectivity to the other
switches and is used to route between the VLANs. At which layer of
the three-layer switch design model does Switch 1 operate?
physical
data link
core
access
network
distribution
20
A network administrator is having problems with
excessive collisions on the corporate network. If the network
currently uses hubs, what is the most cost effective way to reduce
collisions?
add additional hubs
replace hubs with switches
replace hubs with access
points
add a router to every hub
segment
21
Which statements describe features of full-duplex
Ethernet? (Choose three.)
allows packets to be received and
sent simultaneously by a host
requires a minimum of two
wires
reduces the number of
collisions
allocates between 60 and 80 percent
of available bandwidth in both directions
allocates 100 percent of the
bandwidth in both directions
increases the number of broadcast
domains
22
What does a constant green SYSTEM LED indicate on a
Catalyst switch?
The switch has passed POST and is
working properly
The switch has failed POST.
The switch is in the process of
initializing ports.
The switch is going through
POST.
The switch is actively sending and
receiving frames.
23
Refer to the exhibit. Which command will remove the
static address from the MAC address table?
ALSwitch(config)# no
mac-address-table entry 00e0.2917.1884 fastethernet interface 0/4
VLAN 1
ALSwitch(config)# no
mac-address-table entry 00e0.2917.1884 VLAN 1 fastethernet
04
ALSwitch(config-if)# no
mac-address-table entry static 00e0.2917.1884 VLAN 1 fastethernet
04
ALSwitch(config-if)# no
mac-address-table static 00e0.2917.1884 VLAN 1 fastethernet
04
ALSwitch(config)# no
mac-address-table static 00e0.2917.1884 interface fastethernet 0/4
VLAN 1
24
Refer to the OSPF network in the exhibit. Router
REMO_2 has been elected DR, but router REMO_1 is the more powerful
router. How can the network administrator configure REMO_1 to force
it to be elected as DR?
REMO_1(config)# interface
fastethernet 0/0
REMO_1(config-if)# ip ospf priority
0
REMO_1(config)# interface
fastethernet 0/0
REMO_1(config-if)# ip ospf priority
255
REMO_1(config)# ospf priority
1
REMO_1(config)# ip ospf priority
255
25
What is the first step in the spanning-tree
process?
elect a designated switch
use a router to locate a default
gateway
elect a root bridge
determine the path cost of each
active port on the switch
26
Which of the following statements is true when VTP is
configured on a switched network that incorporates VLANs?
VTP is only compatible with the
802.1Q standard.
VTP adds to the complexity of
managing a switched network.
All VTP hello packets are routed
through VLAN 1 interfaces.
Changes made to the network can be
communicated to all switches
dynamically.
27
Refer to the graphic. The network has converged.
Network traffic analysis indicates that switch A should be the STP
root bridge. However, switch F has been elected root bridge of the
STP tree. The switches are all set to the default spanning-tree
bridge priority value. How can the network administrator change the
root bridge to switch A?
Configure the bridge priority of
switch A to a 1.
Configure the bridge priority of
switch A to a 65,565.
Configure the bridge priority of
switch F to 255.
Configure the bridge priority of
switch F to 32,768.
28
Which of the following statements are true about
routers that are running EIGRP? (Choose three.)
They can support multiple routed
protocols.
They can support only link-state
protocols.
They send their entire routing
tables to neighboring routers.
They send partial routing updates
in response to topology changes.
They send routing updates to all
other routers in the network.
They use hello packets to inform
neighboring routers of their
status.
29
Refer to the exhibit. A company always uses the last
valid IP address in a subnetwork as the IP address of the router LAN
interface. A network administrator is using a laptop to configure
switch X with a default gateway. Assuming that the switch IP address
is 192.168.5.147/24, what command will the administrator use to
assign a default gateway to the switch?
X(config)# ip default-gateway
192.168.5.254
X(config)# ip gateway
192.168.5.1
X(config)# ip route 0.0.0.0
0.0.0.0 192.168.5.1
X(config)# ip default-route
192.168.5.1
X(config)# ip route
192.168.5.254 255.255.255.0 fastethernet
0/0
30
Refer to the exhibit. Which configuration commands
will direct outbound traffic from RT-2 to the ISP and inbound
traffic from the ISP to network 192.0.2.0/27?
RT-2(config)# ip route
172.16.127.0 255.255.255.0 serial 0/1
ISP(config)# ip
route 192.0.2.0 255.255.255.224 serial 0/0
RT-2(config)# ip route 0.0.0.0
0.0.0.0 serial 0/1
ISP(config)# ip route 192.0.2.0
255.255.255.224 serial 0/0
RT-2(config)# ip route
172.16.127.0 255.255.255.0 serial 0/1
ISP(config)# ip
route 0.0.0.0 0.0.0.0 serial 0/0
RT-2(config)# ip route 0.0.0.0
0.0.0.0 serial 0/1
ISP(config)# ip route 0.0.0.0 0.0.0.0
serial 0/1
31
Refer to the output in the exhibit. What is true about
the configuration of this switch?
Three ports have been assigned to
the management VLAN.
VTP has been enabled for all
ports.
ARP requests issued by the host on
port Fa0/12 will be seen by all hosts on the PROD VLAN.
Hosts in the ACCT and ENGR VLANs
must have IP addresses in the same subnet in order to exchange data
between VLANs.
32
Refer to the graphic. What is the first parameter used
to determine which switch is selected as the root bridge in the
spanning-tree process?
highest Layer 2 address
highest priority number
highest path cost
lowest Layer 2 address
lowest priority number
lowest path
cost
33
When should EIGRP automatic summarization be turned
off?
when a router has not discovered a
neighbor within three minutes
when a router has more than three
active interfaces
when a router has discontiguous
networks attached
when a router has less than five
active interfaces
34
Refer to the exhibit. If the network is running RIP
v2, which subnetworks can be assigned to the serial links between
RTR-2 and the two other routers?
198.19.23.192/30 and
198.19.23.196/30
198.19.23.160/30 and
198.19.23.164/30
198.19.23.96/30 and
198.19.23.100/30
198.19.23.32/30 and
198.19.23.160/30
198.19.23.4/30 and
198.19.23.8/30
35
Which switching method increases latency and
reliability more than any other method?
cut-through
fast-forward
fragment-free
store-and-forward
36
What are two advantages of adding switches to a
network that has no VLANs configured? (Choose two.)
Switches help eliminate collision
domains.
Switches create permanent virtual
communication circuits.
Switches allow bandwidth to be
fully utilized.
Switches decrease network
throughput.
Switches shrink the size of
broadcast domains.
37
Refer to the network and command output shown in the
exhibit. A network administrator located at the Branch1 site needs
to check the configuration of a switch located at the Central
office. Which command can be used to gain remote access to the
Central LAN switch, assuming the switch is assigned the IP address
192.168.10.238/24?
Branch1# dial Central
192.168.10.238
Branch1(config)# line vty 0
4
Branch1(config-line)# telnet
Branch1# telnet
Central
Branch1# telnet
192.168.10.238
38
Refer to the exhibit. Assuming that VLANs are not
configured on the switch, how many broadcast domains are
there?
one
two
three
four
five
six
39
Refer to the exhibit. How should an administrator
configure the ports on switches ACC-1 and ACC-2 to allow hosts on
the same VLAN to communicate across the two switches?
as trunks
as access ports
as channels
as inter-VLAN ports
as bridge
ports
40
Refer to the exhibit. Which set of commands should be
used on the router to provide communication between the two hosts
connected to the switch?
The network administrator shown in the exhibit is
connected to an Ethernet LAN port on SW_1. The administrator needs
to verify the configuration of the newly installed switch SW_2. What
must be done so that the administrator can access SW_2 with a web
browser? (Choose three.)
Set the password on the management
VLAN.
Establish connectivity of the host
to SW_2.
Configure IP addressing parameters
on SW_2.
Configure the hostname on
SW_2.
Activate the HTTP service on
SW_2.
42
How do EIGRP routers establish and maintain neighbor
relationships?
by exchanging neighbor tables with
directly attached routers
by comparing known routes to
information received in updates
by exchanging of hello packets with
neighboring routers
by dynamically learning new routes
from neighbors
by exchanging routing tables with
directly attached routers
43
What are three attributes of distance vector routing
protocols? (Choose three.)
Hello packets are used to form
neighbor adjacencies.
Each router sends its entire
routing table in routing updates.
Periodic updates are sent to
neighboring routers.
Distance vector protocols converge
more rapidly than link-state protocols do.
Because of their frequent periodic
updates, distance vector protocols after convergence use more
bandwidth than link-state protocols do.
Distance vector protocols are less
prone to routing loops than are link-state
protocols.
44
Refer to the exhibit. Routers RT-1 and RT-3 are
completely configured. The administrator needs to configure the
routing protocol on router RTR-2 so that communication occurs
throughout the network. Which group of commands will successfully
configure EIGRP on RTR-2?
