Evaluasi
CCNA Discovery 1 - Chapter 3
Evaluasi CCNA Discovery 1 - Chapter 3
Chapter 3 - Connecting to the Network
1. Which term is used to describe the process of placing one
message format into another format so that the message can be delivered across
the appropriate medium?
flow
control
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encapsulation
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encoding
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multicasting
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2. Refer to the graphic. Five PCs are connected through a
hub. If host H1 wants to reply to a message from host H2, which statement is
true?
H1 sends a unicast
message to H2, but the hub forwards it to all devices.
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H1
sends a unicast message to H2, and the hub forwards it directly to H2.
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H1
sends a broadcast message to H2, and the hub forwards it to all devices.
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H1
sends a multicast message to H2, and the hub forwards it directly to H2.
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3. Which two statements concerning networking standards are
true?
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4. What does the 100 mean when referencing the
100BASE-T Ethernet standard?
type
of cable used
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type
of data transmission
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speed of transmission
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type
of connector required
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maximum
length of cable allowed
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5. Which address does an NIC use when deciding whether to
accept a frame?
source
IP address
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source
MAC address
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destination
IP address
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destination MAC address
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source
Ethernet address
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6. Which type of address is used in an Ethernet frame
header?
logical
addresses only
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IP
addresses only
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MAC addresses only
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broadcast
addresses only
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7. What is the function of the FCS field in an Ethernet
frame?
detects transmission
errors
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provides
timing for transmission
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contains
the start of frame delimiter
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indicates
which protocol will receive the frame
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8. What is the purpose of logical addresses in an IP
network?
They
identify a specific NIC on a host device.
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They
are used to determine which host device accepts the frame.
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They
provide vendor-specific information about the host.
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They are used to
determine the network that the host is located on.
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They
are used by switches to make forwarding decisions.
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9. Which device accepts a message on one port and always
forwards the message to all other ports?
modem
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switch
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router
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hub
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10. Which two networking devices are used to connect hosts
to the access layer?
hub and switch
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switch
and router
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hub
and router
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switch
and computer
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client
and server
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11. Host A needs to learn the MAC address of Host B, which
is on the same LAN segment. A message has been sent to all the hosts on the
segment asking for the MAC address of Host B. Host B responds with its MAC
address and all other hosts disregard the request. What protocol was used in
this scenario?
ARP
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DHCP
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DNS
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WINS
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12. A switch receives a frame with a destination MAC address
that is currently not in the MAC table. What action does the switch perform?
It
drops the frame.
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It
sends out an ARP request looking for the MAC address.
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It floods the frame out
of all active ports, except the origination port.
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It
returns the frame to the sender.
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13. What is a benefit of having a router within the
distribution layer?
prevents
collisions on a local network
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keeps broadcasts
contained within a local network
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controls
which hosts have access to the network
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controls
host-to-host traffic within a single local network
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14.
Refer to the graphic. What does the router do after it
determines that a data packet from Network 1 should be forwarded to Network 2?
It
sends the data packet as it was received.
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It reassembles the frame
with different MAC addresses than the original frame.
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It
reassembles the data packet with different IP addresses than the original
data packet.
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It
reassembles both the packet and the frame with different destination IP and
MAC addresses.
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15. Which table does a router use to make decisions about
the interface through which a data packet is to be sent?
ARP
table
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routing table
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network
table
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forwarding
table
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16. If the default gateway is configured incorrectly on the
host, what is the impact on communications?
The
host is unable to communicate on the local network.
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The host can communicate
with other hosts on the local network, but is unable to communicate with
hosts on remote networks.
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The
host can communicate with other hosts on remote networks, but is unable to
communicate with hosts on the local network.
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There
is no impact on communications.
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17. What device is typically used as the default gateway for
a computer?
a
server hosted by the ISP
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the router interface
closest to the computer
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a
server managed by a central IT department
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the
switch interface that connects to the computer
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18. What type of route allows a router to forward packets
even though its routing table contains no specific route to the destination
network?
dynamic
route
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default route
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destination
route
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generic
route
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19. Which two items are included in a network logical map?
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20. An integrated router can normally perform the functions
of which two other network devices?
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21. What is a reason for disabling simple file sharing?
It
enables the user to map a remote resource with a local drive.
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It
enables the user to share all files with all users and groups.
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It
enables the user to share printers.
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It enables the user to
set more specific security access levels.
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