SURE A+
✔✔False - ✔✔A VPN, is another type of network, like LAN or WAN, and means Virtual
Personal Network and is mostly used for short range communicatons
✔✔False - ✔✔Analog signals are the basis of the most common signaling method used
on LANs and high speed WANS
✔✔True - ✔✔The smallest T-carrier service is T-1, offering 1.544 Mbps bandwidth
✔✔over optical radio waves - ✔✔Which of the following is NOT a common method of
network communication?
✔✔LAN - ✔✔A _________ consists of interconnect computers, printers, and other
computer equipment in close physical proximity
✔✔Bluetooth - ✔✔Which of the following is an example of a wireless PAN technology?
✔✔Node - ✔✔Any device connected to a network is generally termed a(n) _________
or station
✔✔Client - ✔✔A _______ is a workstation that accesses software and data through the
network on another computer
✔✔NIC - ✔✔Which of the following attaches a network node to the communications
media?
✔✔ICS - ✔✔Which of the following allows you to configure Windows 7 as a host that
allows client computers to access the Internet?
✔✔Protocol - ✔✔A ________ specifies how networked data is formatted into discrete
units, such as packets or frames
✔✔Topology - ✔✔A network ________ has two components: the physical layout of
network cables, and device and the logical path followed by the network packets or
frames
✔✔bus - ✔✔The _____ topology consists of running cable from one PC or file server to
the next, like links in a chain
✔✔ring - ✔✔The ____ topology is a continuous path for data with no logical beginning
or ending point
, ✔✔star - ✔✔The _____ topology is the oldest communications design method, with
roots in telephone switching systems
✔✔backbone - ✔✔A _____ is a high-capacity communications medium that joins
networks and central network devices across long distances
✔✔fault-tolerance - ✔✔The term " " refers to built-in protection against equipment or
communications failure
✔✔Firewalls - ✔✔used for protecting a network may be created using routers
✔✔seven - ✔✔The OSI model consists of _______ distinct layers stacked on one
another
✔✔analog - ✔✔A(n) _____ signal can vary continuously, as in a wave pattern with
positive and negative voltage levels
✔✔Data Link - ✔✔One task of the ______ layer in a LAN is to handle error detection
using a CRC
✔✔Network - ✔✔Which layer can route data on different paths by creating virtual
circuits?
✔✔Transport - ✔✔Which layer provides flow control and ensures data reliability from
source destination?
✔✔Layer 5 - ✔✔Which layer is responsible for establishing and maintaining the
communications link between nodes?
✔✔half duplex - ✔✔Two-way alternate (TWA) mode for dialog control is used in ______
communications
✔✔Encryption - ✔✔is a process that scrambles the data so that it cannot be read if
intercepted by unauthorized users
✔✔Application - ✔✔Which layer governs a user's access to network services?
✔✔encapsulate - ✔✔The term _____ refers to wrapping the information in one layer
inside the information within the next layer
✔✔PDU - ✔✔The information from one layer that is transferred to the next is called
which of the following?