ITN Chapter 1 Exam
(17) Which statement describes the use of powerline networking technology? Wireless access points use powerline adapters to distribute data through the home LAN. A device connects to an existing home LAN using an adapter and an existing electrical outlet. A home LAN is installed without the use of physical cabling. New "smart" electrical cabling is used to extend an existing home LAN.
A device connects to an existing home LAN using an adapter and an existing electrical outlet. Powerline networking adds the ability to connect a device to the network using an adapter wherever there is an electrical outlet. The network uses existing electrical wiring to send data. It is not a replacement for physical cabling, but it can add functionality in places where wireless access points cannot be used or cannot reach devices.
(5) What are two functions of end devices on a network? (Choose two.) They provide the channel over which the network message travels. They are the interface between humans and the communication network. They originate the data that flows through the network. They direct data over alternate paths in the event of link failures. They filter the flow of data to enhance security.
They are the interface between humans and the communication network. They originate the data that flows through the network. End devices originate the data that flows through the network. Intermediary devices direct data over alternate paths in the event of link failures and filter the flow of data to enhance security. Network media provide the channel through which network messages travel.
(2) Which device performs the function of determining the path that messages should take through internetworks? a firewall a DSL modem a router a web server
a router A router is used to determine the path that the messages should take through the network. A firewall is used to filter incoming and outgoing traffic. A DSL modem is used to provide Internet connection for a home or an organization.
(8) An employee at a branch office is creating a quote for a customer. In order to do this, the employee needs to access confidential pricing information from internal servers at the Head Office. What type of network would the employee access? the Internet an intranet an extranet a local area network
an intranet Intranet is a term used to refer to a private connection of LANs and WANs that belongs to an organization. An intranet is designed to be accessible only by the organization's members, employees, or others with authorization.
(11) Which term describes the state of a network when the demand on the network resources exceeds the available capacity? convergence optimization synchronization congestion
congestion When the demand on the network resources exceeds the available capacity, the network becomes congested. A converged network is designed to deliver multiple communication types, such as data, video and voice services, using the same network infrastructure.
(14) A network administrator is implementing a policy that requires strong, complex passwords. Which data protection goal does this policy support? data quality data integrity data confidentiality data redundancy
data confidentiality A security policy requiring strong, complex passwords contributes to data confidentiality because only authorized users can access the data.
(21) What is a characteristic of a converged network? it provides only one path between the source and destination of a message it delivers data, voice, and video over the same network infrastructure A converged network requires a separate network infrastructure for each type of communication technology it limits the impact of a failure by minimizing the number of devices affected
it delivers data, voice, and video over the same network infrastructure A converged network is one in which multiple technologies such as data, telephone, and video are all delivered on the same network infrastructure.
(7) What type of network must a home user access in order to do online shopping? an extranet an intranet a local area network the Internet
the Internet Home users will go online shopping over the Internet because online vendors are accessed through the Internet. An intranet is basically a local area network for internal use only. An extranet is a network for external partners to access certain resources inside an organization. A home user does not necessarily need a LAN to access the Internet. For example, a PC connects directly to the ISP through a modem.
(3) What two criteria are used to help select a network medium from various network media? (Choose two.) the number of intermediate devices installed in the network the types of data that need to be prioritized the environment where the selected medium is to be installed the distance the selected medium can successfully carry a signal the cost of the end devices utilized in the network
the environment where the selected medium is to be installed the distance the selected medium can successfully carry a signal Criteria for choosing a network medium are the distance the selected medium can successfully carry a signal, the environment in which the selected medium is to be installed, the amount of data and the speed at which the data must be transmitted, and the cost of the medium and its installation.
(12) What type of network traffic requires QoS? on-line purchasing video conferencing wiki email
video conferencing Video conferencing utilizes real-time audio and video communications. Both of these are time-sensitive and bandwidth-intensive forms of communication that require quality of service to be active on the network. QoS will ensure an uninterrupted user experience
