Quiz 4

Refer to the exhibit. What is the maximum possible throughput between the PC and the server? 4.1.3 128 kb/s 10 Mb/s 100 Mb/s 1000 Mb/s

128 kb/s (because it is the connection with the lowest throughput between the two devices attemting to communicate; the chain is only as fast as it's slowest link)

Describe Crossover, Rollover, Straght-through, and fiber optic cables. (4.2.2)

A straight-through cable can have either a T568A or T568B standard termination at one end and the same at the other end. A crossover cable has a T568A standard termination at one end and a T568B standard at the other end. A rollover cable can have either a T568A or T568B standard termination at one end, and at the other end have the same standard, but with the wires connected in reverse order. A fiber-optic cable is not terminated using RJ-45 connectors.

What method is used to manage contention-based access on a wireless network? (4.4.3) CSMA/CD priority ordering CSMA/CA token passing

CSMA/CA

Which statement correctly describes frame encoding? (4.1.3) 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 durations. 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.

It converts bits into a predefined code in order to provide a predictable pattern to help distinguish data bits from control bits.

Describe the following (4.2.1): STP Wireless Optical Fiber Coaxial

STP - This type of copper media is used in industrial or similar environments where there is a lot of interference Wireless - This type of media provides the most mobility options Optical Fiber - This type of media is used for high transmission speed and can also transfer data over long distances Coaxial - Traditionally used for television but can now be used in a network to connect the customer location to the wiring of the customer premises

What is a characteristic of a WAN hub-and-spoke topology? 4.4.2 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.​

The branch sites are connected to a central site through point-to-point links.​

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? (4.1.1) 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.

The end-user device needs mobility when connecting to the network.

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.

They vary depending on protocols.

describe each type of frame field (4.4.4): addressing error detection type frame start

addressing - This field helps to direct the frame toward its destination. error detection - This field checks if the frame has been damaged during the transfer. type - This field is used by the LLC to identify the Layer 3 protocol. frame start - This field identifies the beginning of a frame.

Which method of data transfer allows information to be sent and received at the same time? (4.4.3) full duplex half duplex multiplex simplex

full duplex

What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.) (4.2.3) greater distances per cable run lower installation cost limited susceptibility to EMI/RFI durable connections greater bandwidth potential easily terminated

greater distances per cable run limited susceptibility to EMI/RFI greater bandwidth potential

Which two factors influence the method that is used for media access control? (Choose two.) (4.4.1) 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

how the connection between nodes appears to the data link layer how nodes share the media

In fiber optic media, the signals are represented as patterns of _________ (4.1.2)

light

What type of cable is used to connect a workstation serial port to a Cisco router console port? (4.2.2) crossover rollover straight-through coaxial

rollover

Which is a function of the Logical Link Control (LLC) sublayer? (4.3.1) 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

to identify which network layer protocol is being used

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

transmitting bits across the local media