Nauka
neverminder
Wyświetlane są wszystkie pytania.
Pytanie 17
Which type of UTP cable is used to connect a PC to a switch port?
crossover
straight-through
Pytanie 18
A network administrator is measuring the transfer of bits across the company backbone for a mission critical financial application. The administrator notices that the network throughput appears lower than the bandwidth expected. Which three factors could influence the differences in throughput? (Choose three.)
Pytanie 19
What is a characteristic of UTP cabling?
cladding
woven copper braid or metallic foil
immunity to electrical hazards
cancellation
Pytanie 20
What are two characteristics of fiber-optic cable? (Choose two.)
It is more expensive than UTP cabling is.
It combines the technique of cancellation, shielding, and twisting to protect data.
It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
Pytanie 21
What is a characteristic of the LLC sublayer?
It provides delimitation of data according to the physical signaling requirements of the medium.
It provides the logical addressing required that identifies the device.
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
Pytanie 22
A network team is comparing physical WAN topologies for connecting remote sites to a headquarters building. Which topology provides high availability and connects some, but not all, remote sites?
mesh
partial mesh
point-to-point
hub and spoke
Pytanie 23
What method is used to manage contention-based access on a wireless network?
priority ordering
CSMA/CD
CSMA/CA
Pytanie 24
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
data link layer addressing
session control using port numbers
placement and removal of frames from the media
conversion of bits into data signals
error correction through a collision detection method
delimiting groups of bits into frames
detection of errors through CRC calculations