Discovery 1 - Module 4

1)
 
Which definition describes the term Internet?
 a group of PCs connected together on a LAN
 a group of PCs connected together by an ISP
* a network of networks that connects countries around the world
a worldwide collection of networks controlled by a single organization

2)
 
What type of connection point is a point of presence (POP)?
 between a client and a host
 between two local networks
 between a computer and a switch
* between an ISP and a home-based LAN

3)
 
What is the term for the group of high-speed data links that interconnect ISPs?
 Internet LAN
 ISP backbone
 Internet gateways
 Internet providers
* Internet backbone

4)

 
Which device can act as a router, switch, and wireless access point in one package?
 hub
 bridge
 modem
 repeater
* ISR

5)

What are three characteristics of business class ISP service? (Choose three.)
* fast connections
* extra web space
free Windows upgrade
 cheapest cost available to all users
* additional e-mail accounts
replacement hardware at no cost

6)
 
What is a major characteristic of asymmetric Internet service?
 Download speeds and upload speeds are equal.
 Download speeds are slower than upload speeds.
* Upload speeds and download speeds are different.
Upload speeds and download speeds are irrelevant.

7)
  
Which three elements are required to successfully connect to the Internet? (Choose three.)
* an IP address
file sharing enabled
* a network connection
server services enabled
* access to an Internet service provider
an address obtained directly from the RIR

8)

 
What term describes each router through which a packet travels when moving between source and destination networks?
 NOC
 ISP
* hop
segment

9)
 
What does the tracert command test?
 NIC functionality
 the ISP bandwidth
* the network path to a destination
 the destination application functionality

10)
 
What type of end-user connectivity requires that an ISP have a DSLAM device in their network?
 analog technology
 cable modem technology
* digital subscriber line technology
wireless technology

11)
 
Why would an ISP require a CMTS device on their network?
* to connect end users using cable technology
 to connect end users using analog technology
 to connect end users using wireless technology
 to connect end users using digital subscriber line technology

12)

 Refer to the graphic. What type of cabling is shown?
 STP
 UTP
 coax
* fiber

13)

 Refer to the graphic. What type of cabling is shown?
 STP
* UTP
coax
 fiber

14)
 
Which two places are most appropriate to use UTP cabling? (Choose two.)
 between buildings
* in a home office network
 where EMI is an issue
 in a cable TV network
* inside a school building
 in a manufacturing environment with hundreds of electrical devices

15)
 
What does adherence to cabling standards ensure?
 data security
 no loss of signal
 no electromagnetic interference
* reliable data communications

16)

 Refer to the graphic. What type of cable is shown?
* crossover
eight coax channels
 multimode fiber
 single-mode fiber
 straight-through

17)
  
What connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling?
 ST
 BNC
 RJ-11
* RJ-45

18)
 
Which two characteristics describe copper patch panels? (Choose two.)
 uses RJ-11 jacks
* uses RJ-45 jacks
supports only data transmissions
* allows quick rearrangements of network connections
forwards transmissions based on MAC addresses

19)
 
What are two advantages of cable management? (Choose two.)
 requires no preplanning
* aids in isolation of cabling problems
* protects cables from physical damage
provides compliance with future standards
 provides a short-term solution for cable installation

20)
 
What are two common causes of signal degradation when using UTP cabling? (Choose two.)
 installing cables in conduit
* having improper termination
losing light over long distances
 installing low quality cable shielding
* using low quality cables or connectors

21)
 
What are three commonly followed standards for constructing and installing cabling? (Choose three.)
* pinouts
* cable lengths
connector color
* connector types
cost per meter (foot)
 tensile strength of plastic insulator

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