18 October 2013

Cisco Discovery - DHomesb Module 4 - V.4 in english.


Q.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


Q.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


Q.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


Q.4 Which device can act as a router, switch, and wireless access point in one package?
 hub  bridge  modem  repeater  ISR


Q.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


Q.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.


Q.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


Q.8 What term describes each router through which a packet travels when moving between source and destination networks?
 NOC  ISP  hop  segment


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


Q.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


Q.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


schéma1
Q.12 Refer to the graphic. What type of cabling is shown?
 STP  UTP  coax  fiber


schéma2
Q.13 Refer to the graphic. What type of cabling is shown?
 STP  UTP  coax  fiber


Q.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


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


schéma3
Q.16 Refer to the graphic. What type of cable is shown?
 crossover  eight coax channels  multimode fiber  single-mode fiber  straight-through


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


Q.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


Q.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


Q.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


Q.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
.

No comments:

Post a Comment