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- 1. Multiple Choice
A network team is comparing topologies for connecting on a shared media. Which physical topology is an example of a hybrid topology for a LAN?
bus
extended star
ring
partial mesh
- 2. Multiple Choice
What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)
greater distances per cable run
lower installation cost
limited susceptibility to EMI/RFI
durable connections
greater bandwidth potential
- 3. Multiple Choice
What is the purpose of the OSI physical layer?
controlling access to media
transmitting bits across the local media
performing error detection on received frames
exchanging frames between nodes over physical network media
- 4. Multiple Choice
Which method of data transfer allows information to be sent and received at the same time?
full duplex
half duplex
multiplex
simplex
- 5. Multiple Choice
Which statement describes a characteristic of the frame header fields of the data link layer?
They all include the flow control and logical connection fields
Ethernet frame header fields contain Layer 3 source and destination addresses
They vary depending on protocols
They include information on user applications
- 6. Multiple Choice
Which two factors influence the method that is used for media access control? (Choose two.)
how data is generated by end devices applications
how the connection between nodes appears to the data link layer
how signals are encoded by the NICs on end devices
how nodes share the media
how the IP protocol forwards the packet to the destination
- 7. Multiple Choice
What method is used to manage contention-based access on a wireless network?
CSMA/CD
priority ordering
CSMA/CA
token passing
- 8. Multiple Choice
Refer to the exhibit. One end of the cable is terminated as displayed, and the other end is terminated in accordance with the T568A standard. What type of cable would be created in this manner?
crossover
rollover
straight-through
fiber-optic
- 9. Multiple Choice
A network administrator is designing a new network infrastructure that includes both wired and wireless connectivity. Under which situation would a wireless connection be recommended?
The end-user device only has an Ethernet NIC
The end-user device requires a dedicated connection because of performance requirements.
The end-user device needs mobility when connecting to the network
The end-user device area has a high concentration of RFI
- 10. Multiple Choice
What type of cable is used to connect a workstation serial port to a Cisco router console port?
crossover
rollover
straight-through
coaxial
- 11. Multiple Choice
Fill in the blank:
In fiber optic media, the signals are represented as patterns of _______ .
blinks
Light
nodes
beeps
- 12. Multiple Choice
Refer to the exhibit. What is the maximum possible throughput between the PC and the server?
128 kb/s
10 Mb/s
100 Mb/s
1000 Mb/s
- 13. Multiple Choice
Which statement correctly describes frame encoding?
It uses the characteristic of one wave to modify another wave.
It transmits data signals along with a clock signal which occurs at evenly spaced time duration.
It generates the electrical, optical, or wireless signals that represent the binary numbers of the frame.
It converts bits into a predefined code in order to provide a predictable pattern to help distinguish data bits from control bits.
- 14. Multiple Choice
What is a characteristic of a WAN hub-and-spoke topology?
It requires that some of the branch sites be interconnected through point-to-point links.
It requires that every site be interconnected to each other through point-to-point links.
All sites require a hub device that connects to a router.
The branch sites are connected to a central site through point-to-point links.
- 15. Multiple Choice
Which is a function of the Logical Link Control (LLC) sub-layer?
to define the media access processes that are performed by the hardware
to provide data link layer addressing
to identify which network layer protocol is being used
to accept segments and package them into data units that are called packets
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