Questions and answers
Operating systems and networks - Set 1
All questions and answers from this set. Test your networks and operating systems knowledge.
Questions: 124
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Question 16
A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized?
physical layer
Question 17
Which type of UTP cable is used to connect a PC to a switch port?
straight-through
Question 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.)
bylo
Question 19
What is a characteristic of UTP cabling?
cancellation
Question 20
What are two characteristics of fiber-optic cable? (Choose two.)
It is not affected by EMI or RFI.
It is more expensive than UTP cabling is.
Question 21
What is a characteristic of the LLC sublayer?
It places information in the frame allowing multiple Layer 3 protocols to use the same network interface and media.
Question 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?
partial mesh
Question 23
What method is used to manage contention-based access on a wireless network?
CSMA/CA
Question 24
What are the three primary functions provided by Layer 2 data encapsulation? (Choose three.)
data link layer addressing
detection of errors through CRC calculations
delimiting groups of bits into frames
Question 25
What will a host on an Ethernet network do if it receives a frame with a destination MAC address that does not match its own MAC address?
It will discard the frame
Question 26
What are two examples of the cut-through switching method? (Choose two.)
fast-forward switching
fragment-free switching
Question 27
What are two actions performed by a Cisco switch? (Choose two.)
using the source MAC addresses of frames to build and maintain a MAC address table
utilizing the MAC address table to forward frames via the destination MAC address
Question 28
Which frame forwarding method receives the entire frame and performs a CRC check to detect errors before forwarding the frame?
store-and-forward switching
Question 29
Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A?
pytanie 29
Question 30
What addresses are mapped by ARP?
destination MAC address to a destination IPv4 address