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SELAMAT DATANG DI ZUFAR BLOG

Tuesday, 5 June 2012


Chapter 4 - Connecting to the Internet Through an ISP

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Zufar Rijal   11.240.0217



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
  • fast connections
  • cheapest cost available to all users
  • free Windows upgrade
  • fast connections
  • extra web space
  • cheapest cost available to all users
  • fast connections
  • cheapest cost available to all users
  • additional e-mail accounts
  • replacement hardware at no cost
  • additional e-mail accounts
  • cheapest cost available to all users
  • fast connections
  • extra web space
  • additional e-mail accounts

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
  • a network connection
  • server services enabled
  • access to an Internet service provider
  • access to an Internet service provider
  • an address obtained directly from the RIR
  • server services enabled
  • an IP address
  • a network connection
  • access to an Internet service provider
  • file sharing enabled
  • server services enabled
  • 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.
http://4.bp.blogspot.com/-AC21eWQ8zJ4/T835clAZk-I/AAAAAAAAAK4/LXkSKxiqSq0/s1600/1.jpg
Refer to the graphic. What type of cabling is shown?
 

STP
UTP
coax
fiber


13.
http://2.bp.blogspot.com/-Skfl_AjGaLg/T835pAyxFzI/AAAAAAAAALA/q-XZefwJsqo/s1600/2.jpgRefer 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
  • in a home office network
  • where EMI is an issue
  • where EMI is an issue
  • in a cable TV network
  • in a cable TV network
  • inside a school building
  • inside a school building
  • in a manufacturing environment with hundreds of electrical devices
  • in a home office network
  • inside a school building

15. What does adherence to cabling standards ensure?

data security
no loss of signal
no electromagnetic interference
reliable data communications

16.
http://1.bp.blogspot.com/-7uIGYhekgRg/T83546BubHI/AAAAAAAAALI/6osIDxESfy0/s320/3.jpg
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
  • uses RJ-45 jacks
  • supports only data transmissions
  • supports only data transmissions
  • allows quick rearrangements of network connections
  • allows quick rearrangements of network connections
  • uses RJ-45 jacks
  • supports only data transmissions
  • 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
  • aids in isolation of cabling problems
  • protects cables from physical damage
  • protects cables from physical damage
  • provides compliance with future standards
  • 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
  • having improper termination
  • losing light over long distances
  • losing light over long distances
  • installing low quality cable shielding
  • installing low quality cable shielding
  • using low quality cables or connectors
  • having improper termination
  • 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 color
  • connector types
  • cost per meter (foot)
  • pinouts
  • cable lengths
  • connector types
  • cable lengths
  • connector types
  • tensile strength of plastic insulator
  • tensile strength of plastic insulator
  • pinouts
  • connector color



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