Module 4- Cisco Netacad Intro to Networks

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

• presentation layer

• data link layer

• network layer

What type of cable is used to connect a workstation serial port to a Cisco router console port?

• coaxial

• straight-through

• crossover

• rollover

Why are two strands of fiber used for a single fiber optic connection?

• the two strands allow the data to travel for longer distances without degrading

• they prevent crosstalk from causing interference on the connection

• the allow for full-duplex connectivity

• they increase the speed at which the data can travel

Which procedure is used to reduce the effect of crosstalk in copper cables?

• avoiding sharp bends during installation

• twisting opposing circuit wires together

• designing a cable infrastructure to avoid crosstalk interference

• wrapping the bundle of wires with metallic shielding

• requiring proper grounding connections

What is one advantage of using fiber optic cabling rather than copper cabling?

• it is easier to terminate and install than copper cabling

• it is able to be installed around sharp bends

• it is able to carry signals much farther than copper cabling

• it is usually cheaper than copper cabling

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

Which type of UTP cable is used to connect a PC to a switch port?

• rollover

• console

• crossover

• strait-through

What is the definition of bandwidth?

• the measure of usable data transferred over a given period of time

• the amount of data that can flow from one place to another in a given amount of time

• the speed at which bits travel on the network

• the speed of bits across the media over a given period of time

Which statement correctly describes frame encoding?

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

• it transmits data signals along with a clock signal which occurs at evenly spaced time durations

• it uses the characteristics of one wave to modify another wave.

• it generates the electrical, optical, or wireless signals that represent the binary numbers of the frame

What is a characteristic of UTP cabling?

• immunity to electrical hazards

• cladding

• cancellation

• woven copper brain or metallic foil.