Soal Beserta jawaban Latihan CCNA 1
CHAPTER 4
STMIK Nusa Mandiri Jakarta
1. Why are two strands of fiber used for a single fiber optic connection?
They
allow for full-duplex connectivity.
The
two strands allow the data to travel for longer distances without degrading.
They
prevent crosstalk from causing interference on the connection.
They
increase the speed at which the data can travel.\
2. What is indicated by the term throughput?
the
measure of the usable data transferred across the media
the
capacity of a particular medium to carry data
the
measure of the bits transferred across the media over a given period of time
the
guaranteed data transfer rate offered by an ISP
the
time it takes for a message to get from sender to receiver
3. What are two examples of hybrid topologies? (Choose two.)
partial
mesh
full
mesh
hub
and spoke
extended
star
point-to-point
4. What is a role of the Logical Link Control sublayer?
to
provide access to various Layer 1 network technologies
to
mark frames to identify the network layer protocol being carried
to
provide data link layer addressing
to
define the media access processes performed by network hardware
5.
PC on the left connects to a switch. This connection is labeled
1. The switch connects to a router. This connection is labeled 2. The router
connects to another router. This link is labeled 3.
Refer to the exhibit. The PC is connected to the console port of
the switch. All the other connections are made through FastEthernet links.
Which types of UTP cables can be used to connect the devices?
1
- crossover, 2 - straight-through, 3 - rollover
1
- crossover, 2 - rollover, 3 - straight-through
1
- rollover, 2 - straight-through, 3 - crossover
1
- rollover, 2 - crossover, 3 - straight-through
6. Which statement describes an extended star topology?
Each
end system is connected to its respective neighbor via an intermediate device.
End
devices are connected together by a bus and each bus connects to a central
intermediate device.
End
devices connect to a central intermediate device, which in turn connects to
other central intermediate devices.
All
end and intermediate devices are connected in a chain to each other.
7. What is one advantage of using fiber optic cabling rather than
copper cabling?
It
is able to be installed around sharp bends.
It
is usually cheaper than copper cabling.
It
is easier to terminate and install than copper cabling.
It
is able to carry signals much farther than copper cabling.
8. Which type of connector does a network interface card use?
DIN
RJ-45
RJ-11
PS-2
9. What is the function of the CRC value that is found in the FCS
field of a frame?
to
verify the physical address in the frame
to
verify the integrity of the received frame
to
verify the logical address in the frame
to
compute the checksum header for the data field in the frame
10. Which layer of the OSI model is responsible for specifying the
encapsulation method used for specific types of media?
physical
transport
application
data
link
11. As data travels on the media in a stream of 1s and 0s how does a
receiving node identify the beginning and end of a frame?
The
transmitting node inserts start and stop bits into the frame.
The
receiving node identifies the beginning of a frame by seeing a physical
address.
The
transmitting node sends a beacon to notify that a data frame is attached.
The
transmitting node sends an out-of-band signal to the receiver about the
beginning of the frame.
12. What is true concerning physical and logical topologies?
Physical
topologies display the IP addressing scheme of each network.
Physical
topologies are concerned with how a network transfers frames.
Logical
topologies refer to how a network transfers data between devices.
The
logical topology is always the same as the physical topology.
13. Option 1: laser as
light source. Press spacebar to enter matching mode.
Match the characteristics to the correct type of fiber. (Not all
options are used.)
supports full-duplex operation
Multimode Fiber
LED as light source
several paths of light into the fiber
generally used for campus backbone
Single-mode Fiber
only one ray of light into the fiber
generally used with LANs
laser as light source
14.
The graphic displays a terminated RJ45 connector. The untwisted
wires at the end of the PVC sheath are crimped by the connector.
Refer to the exhibit. What is wrong with the displayed
termination?
The
woven copper braid should not have been removed.
The
wrong type of connector is being used.
The
wires are too thick for the connector that is used.
The
untwisted length of each wire is too long.
15. What are two reasons for physical layer protocols to use frame
encoding techniques? (Choose two.)
to
distinguish data from control information
to
provide better media error correction
to
identify where the frame starts and ends
to
increase the media throughput
to
reduce the number of collisions on the media
16. What is the definition of bandwidth?
the
measure of the transfer of bits across the media over a given period of time
the
speed at which bits travel on the network
the
amount of data that can flow from one place to another in a given amount of
time
the
measure of usable data transferred over a given period of time
17. What is contained in the trailer of a data-link frame?
data
logical
address
physical
address
error
detection
18. What are two services performed by the data link layer of the
OSI model? (Choose two.)
It
accepts Layer 3 packets and encapsulates them into frames.
It
monitors the Layer 2 communication by building a MAC address table.
It
provides media access control and performs error detection.
It
encrypts data packets.
It
determines the path to forward packets.
19. A network administrator notices that some newly installed
Ethernet cabling is carrying corrupt and distorted data signals. The new
cabling was installed in the ceiling close to fluorescent lights and electrical
equipment. Which two factors may interfere with the copper cabling and result
in signal distortion and data corruption? (Choose two.)
crosstalk
signal
attenuation
extended
length of cabling
EMI
RFI
20. Which method of data transfer allows information to be sent and
received at the same time?
simplex
half
duplex
full
duplex
multiplex
21. Which characteristic describes crosstalk?
the
loss of wireless signal over excessive distance from the access point
the
distortion of the network signal from fluorescent lighting
the
distortion of the transmitted messages from signals carried in adjacent wires
the
weakening of the network signal over long cable lengths
22. A network administrator is designing the layout of a new
wireless network. Which three areas of concern should be accounted for when
building a wireless network? (Choose three.)
packet
collision
mobility
options
interference
security
extensive
cabling
coverage
area
23. What technique is used with UTP cable to help protect against
signal interference from crosstalk?
twisting
the wires together into pairs
encasing
the cables within a flexible plastic sheath
terminating
the cable with special grounded connectors
wrapping
a foil shield around the wire pairs
