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
|
|
encapsulation
|
|
encoding
|
|
multicasting
|
|
access
method
|
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.
|
|
H1 sends a
unicast message to H2, and the hub forwards it directly to H2.
|
|
H1 sends a
broadcast message to H2, and the hub forwards it to all devices.
|
|
H1 sends a
multicast message to H2, and the hub forwards it directly to H2.
|
3. Which two
statements concerning networking standards are true?
|
|
|
|
|
|
|
|
|
|
4. What does
the 100 mean when referencing the 100BASE-T Ethernet standard?
|
type of
cable used
|
|
type of
data transmission
|
|
speed of transmission
|
|
type of
connector required
|
|
maximum
length of cable allowed
|
5. Which
address does an NIC use when deciding whether to accept a frame?
|
source IP
address
|
|
source MAC
address
|
|
destination
IP address
|
|
destination MAC address
|
|
source
Ethernet address
|
6. Which
type of address is used in an Ethernet frame header?
|
logical
addresses only
|
|
IP
addresses only
|
|
MAC addresses only
|
|
broadcast
addresses only
|
7. What is
the function of the FCS field in an Ethernet frame?
|
detects transmission errors
|
|
provides
timing for transmission
|
|
contains
the start of frame delimiter
|
|
indicates
which protocol will receive the frame
|
8. What is
the purpose of logical addresses in an IP network?
|
They
identify a specific NIC on a host device.
|
|
They are
used to determine which host device accepts the frame.
|
|
They
provide vendor-specific information about the host.
|
|
They are used to determine the network that the host
is located on.
|
|
They are
used by switches to make forwarding decisions.
|
9. Which
device accepts a message on one port and always forwards the message to all
other ports?
|
modem
|
|
switch
|
|
router
|
|
hub
|
10. Which
two networking devices are used to connect hosts to the access layer?
|
hub and switch
|
|
switch and
router
|
|
hub and
router
|
|
switch and
computer
|
|
client and
server
|
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
|
|
DHCP
|
|
DNS
|
|
WINS
|
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.
|
|
It sends
out an ARP request looking for the MAC address.
|
|
It floods the frame out of all active ports, except
the origination port.
|
|
It returns
the frame to the sender.
|
13. What is
a benefit of having a router within the distribution layer?
|
prevents
collisions on a local network
|
|
keeps broadcasts contained within a local network
|
|
controls
which hosts have access to the network
|
|
controls
host-to-host traffic within a single local network
|
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.
|
|
It reassembles the frame with different MAC
addresses than the original frame.
|
|
It
reassembles the data packet with different IP addresses than the original
data packet.
|
|
It
reassembles both the packet and the frame with different destination IP and
MAC addresses.
|
15. Which
table does a router use to make decisions about the interface through which a
data packet is to be sent?
|
ARP table
|
|
routing table
|
|
network
table
|
|
forwarding
table
|
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.
|
|
The host can communicate with other hosts on the
local network, but is unable to communicate with hosts on remote networks.
|
|
The host
can communicate with other hosts on remote networks, but is unable to
communicate with hosts on the local network.
|
|
There is
no impact on communications.
|
17. What
device is typically used as the default gateway for a computer?
|
a server
hosted by the ISP
|
|
the router interface closest to the computer
|
|
a server
managed by a central IT department
|
|
the switch
interface that connects to the computer
|
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
|
|
default route
|
|
destination
route
|
|
generic
route
|
19. Which
two items are included in a network logical map?
|
|
|
|
|
|
|
|
20. An
integrated router can normally perform the functions of which two other network
devices?
|
|
|
|
|
|
|
|
21. What is
a reason for disabling simple file sharing?
|
It enables
the user to map a remote resource with a local drive.
|
|
It enables
the user to share all files with all users and groups.
|
|
It enables
the user to share printers.
|
|
It enables the user to set more specific security
access levels
|
Tidak ada komentar:
Posting Komentar