CCNA Chapter 4

What is the maximum possible throughput between the PC and the server? a.) 128 kb/s b.) 10 Mb/s c.) 100 Mb/s d.) 1000 Mb/s

128 kb/s

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

CSMA/CA

In fiber optic media, the signals are represented as patterns of "_______" .

Light

Match the description with the media. (Not all options are used.) STP Wireless Optical fiber Coaxial i. this type of copper media is used in industrial or similar environments where there is a lot of interference ii. this type of media provides the most mobility options iii. this type of media is used for high transmission speed and can also transfer data across long distances iv. traditionally used for television but can now be used in a network to connect the customer location to the wiring of the customers premises

STP --> i Wireless --> ii Optical fiber --> iii Coxial --> iv

Match each type of frame field to its function. (Not all options are used.) addressing error detection type frame start i. this field identifies the beginning of a frame ii. this field checks if the frame has been damaged during the transfer iii. this field is used by the LLC to identify the Layer 3 protocol iv. this field helps to direct the frame toward its destination

addressing --> iv error detection --> ii type --> iii frame start --> i

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? a.) bus b.) extended star c.) ring d.) partial mesh

extended star

Which method of data transfer allows information to be sent and received at the same time? a.) full duplex b.) half duplex c.) multiplex d.) simplex

full duplex

What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.) a.) greater distance per cable run b.) lower installation cost c.) limited susceptibility to EMI/RFI d.) durable connections e.) greater bandwidth potential f.) 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.) a.) how data is generated by end devices applications b.) how the connection between nodes appear to the data link layer c.) how signals are encoded by the NICs on end devices d.) how nodes share the media e.) how the IP protocol forwards the packet to the destination

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

Which statement correctly describes frame encoding? a.) it uses the characteristic of one wave to modify another wave b.) it transmits data signals along with a clock signal which occurs at evenly spaced time duration c.) it generates the electrical, optical, or wireless signals that represent the binary numbers of the frame d.) 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

What type of cable is used to connect a workstation serial port to a Cisco router console port? a.) crossover b.) rollover c.) straight-through d.) coaxial

rollover

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? a.) crossover b.) rollover c.) straight-through d.) fiber optic

straight-through

What is a characteristic of a WAN hub-and-spoke topology? a.)It requires that some of the branch sites be interconnected through point-top-point links b.) It requires that every site be interconnected to each other through point-to-point links c.) all sites require a hub device that connects to a router d.) 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? a.) the end-user device only has an Ethernet NIC b.) the end-user device requires a dedicated connection because of performance requirements c.) the end-user device needs mobility when connecting to the network d.) the end-user device area has 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? a.) they all include the flow control and logical connection fields b.) Ethernet frame header fields contain Layer 3 source and destination addresses c.) they vary depending on protocols d.) they include information on user applications

they vary depending on protocols

Which is a function of the Logical Link Control (LLC) sublayer? a.) to define the media access processes that are performed by the hardware b.) to provide data link layer addressing c.) to identify which network layer protocol is being used d.) 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? a.) controlling access to media b.) transmitting bits across the local media c.) performing error detection on received frames d.) exchanging frames between nodes over physical network media

transmitting bits across the local media