DHomesb Chapter 4 Exam Answers
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
Q.12. Refer to the graphic. What type of cabling is shown? • STP
• UTP
• coax
• fiber
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
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