Minggu, 14 November 2010

Kuiz Chapter 2.1

1.Which is the function of the planning and provisioning team within the ISP organization?
·         Writing  service level agreements
·         Answering the help desk calls for the customer
·         Installing customer premises equipment
·         Managing the network operations center
·         IDENTIFYING WHETHER EXISTING NETWORK HARDWARE AND CIRCUITS ARE AVAILABLE
2.what are two characteristics of a scalable network?(choose two)
·         Easily overloaded with increased traffic
·         GROWS IN SIZE WITHOUT IMPACTING EXISTING USER
·         Is not as reliable as a small network
·         CONTAINS MODULAR DEVICES THAT ALLOW FOR EXPANSION
·         Offers limited number for applications
3.why do multiple ISPs connect to an IXP or a NAP?(choose two)
·         TO GAIN ACCESS TO EACH OTHER’S NETWORKS
·         To provide dial-up access for the customer
·         TO ACCESS THE INTERNET BACKBONE
·         To create large private network
·         To secure network transmission
4.why do small bussineses and individual choose DSL and cable connectivity instead of T3 conections?
·         DSL and cable connectivity offers higher speeds than T3 conection
·         T3 conection do not provide enough upload bandwidth to meet their needs
·         SERIAL T3 CONECTION ARE USUALLY MORE EXPENSIVE THAN DSL OR CABLE OPTION
·         T3 conection are less reliable than DSL and cable conections
5.a network administrator can successfully ping the server at www.cisco.com,but cannot ping the company web server located at an ISP in another city.which tools or command would help identify the specific router where the packet was lost or delayed?
·         Ipconfig
·         Netstat
·         telnet
·         TRACEROUTE
6.what make it possible for email to be sent and received on a wide variety devices,including cell phones,PDAs,laptops,and desktop computers?
·         All of devices run the same operating system software
·         There is a single provider of email server software
·         The device use the same email client software so they are compatible
·         EMAIL SOFTWARE IS WRITTEN USING STANDARD AND PROTOCOL THAT ENSURE COMPATIBILITY
                                                    


7.click and drag the ISP service on the left to the description on the right

FTP hosting
Technical support
Equipment co-location
Application and media hosting

8.which connectivity options would be a good choice for a large university with three campus locations in the same major city?
·         Cable
·         DSL
·         T1
·         METRO ETHERNET

9.which statement describe a function by tier 3 internet service provider?
·         Peer with other similarly sized ISPs to from the global internet backbone
·         Own and operate undersea fiber runs  to provide internet connectivity across aceans
·         CONNECT INDIVIDUAL AND SMALL BUSSINESES TO THE INTERNET
·         Provide the link between tier 2 ISPs and the global internet backbone

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