CCNA V3.1 - Anglais
Semestre 1 -
Final
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1
Which of the following OSI layers offers reliable, connection-oriented data
communication services?
application
presentation
session
*transport
network
2
Router interface Ethernet 0 has been assigned the IP address 10.172.192.168
255.255.255.240. What is the network IP address of this interface?
10.0.0.0
10.172.0.0
10.172.192.0
*10.172.192.160
10.172.192.168
10.172.192.175
3
Examine the graphic with current configurations. The New York Offices of ABC
Company recently upgraded the computers in the administrative office. Shortly
after the upgrade, Host A in the clerical office failed and was replaced with
one of the retired administrative office computers. However, the computer can
not access the company network in the new location. What is the likely cause of
this network access issue for Host A?
MAC address incorrectly entered
*default gateway incorrectly entered
subnet mask incorrectly entered
IP address incorrectly entered
4
Which of the following increases the potential for a collision to occur?
the use of an active hub instead of an intelligent hub
the use of an intelligent hub instead of an active hub
a reduction in the number of devices attached to the hub
*an increase in the number of devices attached to the hub *
5
What is attenuation?
opposition to the flow of current
measurement of electrical signals relative to time
*degradation of a signal as it travels along the medium
amount or volume of traffic that is flowing on the medium
6
Two peer hosts are running applications that exchange data using UDP. During the
current session, a datagram fails to arrive at the destination. What is true
concerning the retransmission of the datagram?
*Datagram retransmission occurs when the retransmission timer expires in the
source host.
Datagram retransmission occurs when the retransmission timer expires in the
destination host.
Datagram retransmission is controlled by the application layer protocol.
Datagram retransmission involves only the data with sequence numbers equal to or
higher than the sequence number of the current datagram.
7
What is significant about the ping 127.0.0.1 command?
*It verifies the operation of the TCP/IP protocol stack on a host and is
called an internal loopback test.
It verifies connection to the remote host with the IP address 127.0.0.1.
It verifies whether the router that connects the local network to other networks
can be reached.
It verifies the route packets take between the local host and the host with the
IP address 127.0.0.1.
8
Which LAN switching mode has the highest latency?
fast forward
fragment-free
latency forwarding
*store-and-forward
9
Which of the following application layer protocols use UDP segments? (Choose two.)
*DNS
FTP
Telnet
*TFTP
SMTP
10
Which cable specifications are indicated by 100BASE-T?
100-Mbps transmission speed, baseband signal, coaxial cable
100-Mbps transmission speed, broadband signal, twisted-pair cable
*100-Mbps transmission speed, baseband signal, twisted-pair cable
Equal to 10-Gbps transmission speed, baseband signal, twisted-pair cable
11
When is a crossover cable used in a network?
when connecting a host to the router console port
when connecting a host to a switch
*when connecting a host to a host
when connecting a switch to a router
12
Refer to the graphic. What must be configured on Host A to allow it communicate
with the e-mail server? (Choose three.)
IP address *
subnet mask *
default gateway *
router name
switch name
NetBIOS name address
13
Which cable diagram displays the end to end pinout for a crossover cable used
with Cisco devices?
Cable A
Cable B
*Cable C
Cable D
14
Which type of address is 192.168.17.134/29?
*host address
network address
broadcast address
multicast address
15
How many collision domains are shown in the diagram?
three
four
five
*six
seven
eight
16
When is a straight-through cable used in a network?
when connecting a router through the console port
when connecting one switch to another switch
*when connecting a host to a switch
when connecting a router to another router
17
How does network cable length affect attenuation?
Category 5 cable that is run in metal conduit has the highest attenuation in the
shortest distance.
Shorter cable lengths have greater signal attenuation.
*Longer cable lengths have greater signal attenuation.
The length of the cable has no effect on signal attenuation.
18
Which of the following statements are correct about CSMA/CD? (Choose three.)
It is a media access method used in LANs. *
It is a media access method used in FDDI WANs.
When a device needs to transmit, it checks to see if the media is available. *
A device sends data without checking media availability because all devices have
equal access. Multiple devices can successfully transmit simultaneously.
*Only one device can successfully transmit at a time.
19
Which of the following must be present for current to flow? (Choose three.)
*closed loop
bit-generating device
insulating material
*source of voltage
*load
switch
20
If Host A pings Host B through a newly installed switch with no entries in the
MAC address table, which stations will receive the ping packet?
B only
A and B
B and switch
A, B, and switch
B, C, D, and switch *
A, B, C, D, and switch
21
Which devices shown in the graphic must have a MAC address?
only PC
only router
PC and router
PC, hub, and router
*PC, printer, and router
22
What kind of connection is represented in the graphic?
*console connection
Ethernet connection
ISDN connection
leased line connection
23
Which of the following is the decimal representation of the binary number
11010011?
203
204
*211
212
24
Which type of cable is required to make a connection between a router console
port and a PC COM port?
straight-through cable
crossover cable
*rollover cable
DB-9 cable
coaxial cable
25
Determine the number of useable networks and hosts for the IP address
192.168.50.0/27
4 networks / 62 hosts
6 networks / 64 hosts
32 networks / 8 hosts
*6 networks / 30 hosts
8 networks / 32 hosts
2 networks / 8 hosts
26
A network administrator is placing an older router back in to service. The
administrator discovered that the IOS and configuration files need to be updated
to meet the LAN specifications. Which application layer protocol is used to
transfer the new configuration files into the router memory?
*SNMP
SMTP
HTTP
TFTP
27
Which of the following best describes Spanning Tree Protocol?
It enables a network to span across multiple physical segments.
*It enables a switch to eliminate switching loops.
It enables a switch to dynamically choose the best switch mode.
It enables a switch to perform as a router.
28
Which of the following subnet masks could be used when subnetting a Class B IP
address? (Choose two.)
255.0.0.0
*255.255.0.0
255.192.255.0
255.224.0.0
*255.255.252.0
255.255.255.128
29
How is data encapsulated as it is moved down the OSI model?
data, segments, frames, packets, bits
data, packets, segments, frames, bits
*data, segments, packets, frames, bits
data, packets, frames, segments, bits
30
Which of the following describes latency?
the noise generated from outside a cable
the degradation of a signal as it travels along the media
the time required for a NIC to place a frame on the network media
*the delay between the time a frame leaves its source device and reaches its
destination
31
Which of the following is the binary representation of the decimal number 111?
*01101111
01111101
11110111
11101101
32
Which LAN switching mode begins switching after reading only the first 64 bytes
of the frame?
fast forward
*fragment-free
latency forwarding
store-and-forward
33
When using Category 5 UTP cable, which RJ-45 pin pairs are used to exchange data
between hosts on an Ethernet network?
1 and 2; 4 and 5
1 and 2; 3 and 6 *
3 and 6; 7 and 8
4 and 5; 7 and 8
34
Which of the following commands could be used on a Windows-based computer to
view the current IP configuration of the system? (Choose two.)
configip
ifconfig
*ipconfig
*winipcfg
winipconfig
35
Which type of address is 192.168.17.111/28?
host address
network address
*broadcast address
multicast address
36
Which of the following networking devices increase the number of collision
domains? (Choose three.)
*switch
hub
*router
repeater
*bridge
37
What information can be determined from the MAC addresses of PC1, PC2, and PC3,
as shown in the graphic? (Choose two.)
PC1 and PC2 NICs need to be replaced because they have the same OUI identifier.
PC2 and PC3 NICs need to be replaced because they have different OUI identifiers.
*PC1 and PC2 NICs are from the same vendor.
PC1 and PC3 NICs need to be replaced because they have the same vendor-assigned
address.
*PC2 and PC3 NICs are from different vendors.
PC2 and PC3 NICs are from the same vendor.
38
Which of the following are considered WAN technologies? (Choose two.)
*DSL
Ethernet
Wireless Ethernet
*T1-Carrier
Token Ring
39
which one of the router connectors shown in the graphic would be used for a LAN
connection?
Connector A
Connector B
*Connector C
Connector D
40
How is full-duplex capability typically achieved in fiber-optic cable?
*Two fibers are encased in separate sheaths.
Light is bounced at different rates in opposite directions.
Transmit speeds are so high that half-duplex is acceptable.
Colors of the light spectrum are separated into transmit and receive streams.
41
Which of the following are characteristics of IP? (Choose three.)
connection-oriented protocol
connectionless protocol*
reliable protocol
unreliable protocol *
routed protocol *
routing protocol
42
Which of the following describe the token-passing logical topology? (Choose two.)
*FDDI is an example of a token-passing network.
Token-passing logical topologies must also be physical ring topologies.
One of the disadvantages of the token-passing logical topology is the high
collision rate.
Computers transmit data after "listening" to the wire to detect other traffic.
*Computers are allowed to transmit data only when they possess a token.
43
What is the maximum length of a media segment used for 100BASE-TX?
*100 meters
185 meters
400 meters
500 meters
44
which of the following networking devices divide a network into separate
collision domains? (Choose two.)
repeater
*bridge
*switch
AUI
hub
45
Which of the following are characteristics of UTP cable? (Choose three.)
*Each wire is covered by insulating material.
It is not affected by EMI or RFI.
*It is a four-pair wire medium.*
It is difficult to terminate the cable.
*It relies on the cancellation effect produced by the twisted wire pairs.
It is more expensive than any other type of LAN cabling.
46
Examine the graphic with current configurations. Host A in the Clerical offices
failed and was replaced. Although a ping to 127.0.0.1 was successful, the
replacement computer can not access the company network. What is the likely
cause of the problem?
IP address incorrectly entered
network cables unplugged
*subnet mask incorrectly entered
network card failure
47
Which of the following describes a physical full-mesh topology?
It requires termination at both ends of the cable.
It uses a hub or a switch as a central point to connect all wires.
*It provides maximum connectivity between all network systems.
It links all computers to a main computer that controls all traffic on the
network.
48
Which two statements describe the TFTP protocol? (Choose two.)
uses authenticated file transfer procedure
provides connection-oriented service
*provides connectionless service
provides more features that FTP
*lacks most of the features of FTP
49
Which of the following are transport layer protocols of the TCP/IP model? (Choose
two.)
FTP
*UDP
SMTP
TFTP
*TCP
50
Which type of UTP network cable connects two Cisco switches?
straight-through
*crossover
rollover
patch
51
How will the MAIN router dynamically learn a route to the 10.16.10.48/28
subnetwork in the diagram?
with a routed protocol
with a routing protocol
*with a static route
with a directly connected route
52
Which of the following describes the RIP version 1 routing protocol?
Cisco proprietary hybrid protocol
*distance vector protocol that uses hop count as the only metric *
link state protocol supporting multiple routed protocols
distance vector protocol that uses delay, bandwidth, load, and reliability
metrics
53
How many broadcast domains are shown in the diagram?
*three
four
five
six
seven
eight
54
Which of the following are advantages of UTP cable? (Choose three.)
*less expensive than fiber optic
*flexible and easy to run in a building
distance between signal boosts is longer than it is for coaxial
*transmits data at a faster rate than any copper-based media
receives less RMF and EMI interference than other types
55
Which of the following devices extend a collision domain? (choose 2)
*-hub
*-repeater
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