True/False
Indicate whether the
statement is true or false.
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1.
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One disadvantage to using wireless NICs is that currently they are somewhat more
expensive than wire-bound NICs.
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2.
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After a computer is up and running, the BIOS provides an interface between the
computer’s software and hardware, allowing it to recognize which device is associated with each
IRQ.
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3.
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A repeater typically contains multiple data ports into which the patch
cables for network nodes are connected.
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4.
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If congestion or failures affect the network, a router using dynamic routing can
detect the problems and reroute data through a different path.
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5.
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Hubs operate at the Network layer of the OSI model.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6.
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____ are connectivity devices that enable a workstation, server, printer, or
other node to receive and transmit data over the network media.
a. | Routers | c. | Switches | b. | NICs | d. | Bridges |
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7.
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A computer’s ____ is the circuit, or signaling pathway, used by the
motherboard to transmit data to the computer’s components, including its memory, processor,
hard disk, and NIC.
a. | bus | c. | driver | b. | bridge | d. | port |
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8.
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____ allows many different external devices to connect to portable computers
through a 26-pin interface, and offers data transfer rates of 250 MBps in each direction (for a total
of 500 MBps).
a. | EEPROM | c. | ExpressCard | b. | RIP | d. | VLAN |
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9.
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The USB 1.1 standard has a maximum data transfer rate of ____Mbps.
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10.
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In a PC, the ____ stores settings pertaining to a computer’s devices,
among other things.
a. | data port | c. | CMOS | b. | DIP switch | d. | BIOS |
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11.
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The ____ is a simple set of instructions that enables a computer to initially
recognize its hardware.
a. | CMOS | c. | DIP switch | b. | data port | d. | BIOS |
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12.
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The ____ indicates, in hexadecimal notation, the area of memory that the NIC and
CPU use for exchanging, or buffering, data.
a. | memory range | c. | runt | b. | on-board NIC | d. | uplink port |
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13.
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A(n) ____ is a device or connection on a network that,were it to fail, could
cause the entire network or portion of the network to stop functioning.
a. | single point of failure | c. | modular router | b. | USB
port | d. | PC
card |
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14.
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____ are devices that connect two network segments by analyzing incoming frames
and making decisions about where to direct them based on each frame’s MAC address.
a. | Multistation Access Units | c. | Hubs | b. | PC
cards | d. | Bridges |
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15.
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A router with multiple slots that can hold different interface cards or other
devices is called a(n) ____.
a. | dynamic router | c. | static router | b. | modular router | d. | interrupt |
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16.
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____ automatically calculates the best path between two nodes and accumulates
this information in a routing table.
a. | Dynamic routing | c. | Border routing | b. | Static routing | d. | Modular routing |
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17.
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The term ____ refers to the most efficient route from one node on a network to
another.
a. | base I/O port | c. | firmware | b. | best path | d. | firewall |
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18.
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To determine the best path, routers communicate with each other through
____.
a. | interrupts | c. | jumpers | b. | gateways | d. | routing
protocols |
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19.
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____ is the routing protocol of Internet backbones and is not used to route
between nodes on an autonomous LAN - that is, it is used on border and exterior routers.
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20.
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The term ____ describe routers that take on some characteristics of
bridges.
a. | bgateway | c. | switch router | b. | brouter | d. | modular router |
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21.
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____ are combinations of networking hardware and software that connect two
dissimilar kinds of networks.
a. | Gateways | c. | Hubs | b. | Switches | d. | Ports |
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22.
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A computer’s motherboard contains ____, or openings with multiple
electrical contacts, that allow devices such as NICs, modems, or sound cards to connect to the
computer’s expanded bus.
a. | hubs | c. | expansion slots | b. | ports | d. | runts |
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23.
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A(n) ____ is a small, removable piece of plastic that contains a metal
receptacle, which fits over a pair of pins on a circuit board to complete a circuit between those two
pins.
a. | runt | c. | switch | b. | hub | d. | jumper |
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24.
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A(n) ____ switch is a small, plastic toggle switch that can represent an
“on” or “off ” status that indicates a parameter setting.
a. | dual inline package | c. | jumper | b. | routing | d. | port |
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25.
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A(n) ____ is a connector that plugs into a port, such as a serial or parallel or
an RJ-45 port, and crosses over the transmit line to the receive line so that outgoing signals can be
redirected into the computer for testing.
a. | runt | c. | gateway | b. | loopback plug | d. | bus |
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26.
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Most hubs also contain one port, called a(n) ____, that allows the hub to
connect to another hub or other connectivity device.
a. | data port | c. | device port | b. | modular port | d. | uplink port |
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Completion
Complete each
statement.
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27.
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A(n) ____________________ is a message to the computer that instructs it to stop
what it is doing and pay attention to something else.
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28.
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The ____________________ setting specifies, in hexadecimal notation, which area
of memory will act as a channel for moving data between the NIC and the CPU.
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29.
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____________________ are hubs that serve a group of computers that are isolated
from the rest of the network or that form their own small network.
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30.
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A switch running in ____________________ mode reads a frame’s
header and decides where to forward the data before it receives the entire packet.
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31.
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In ____________________ mode, a switch reads the entire data frame into its
memory and checks it for accuracy before transmitting the information.
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Matching
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Match each term with the correct statement below. a. | USB | f. | Switches | b. | Firmware | g. | Broadcast domain | c. | Device
driver | h. | Router | d. | IRQ number | i. | Convergence time | e. | Hub |
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32.
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A set of data or instructions that has been saved to a ROM chip.
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33.
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The means by which the bus understands which device to acknowledge.
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34.
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Standard interface used to connect multiple types of peripherals, including
modems, mice, audio players, and NICs.
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35.
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A repeater with more than one output port.
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36.
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A combination of ports that make up a Layer 2 segment.
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37.
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Software that enables an attached device to communicate with the
computer’s operating system.
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38.
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Multiport connectivity device that directs data between nodes on a
network.
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39.
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The time it takes for a router to recognize a best path in the event of a
change or network outage.
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40.
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Connectivity devices that subdivide a network into smaller logical pieces, or
segments.
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Short Answer
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41.
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What are the factors to be considered when ordering or installing a NIC?
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42.
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Most modern NICs have LEDs that indicate whether they are communicating with the
network. Briefly describe the meaning of the following LED indicators: ACT, LNK, TX, and RX.
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43.
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What symptoms would indicate that two devices are attempting to use the same
IRQ?
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44.
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Briefly explain the function of the following NIC features: Automatic speed
selection, Direct memory access (DMA), and Load balancing.
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45.
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What are the advantages of using bridges over repeaters or hubs?
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46.
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Discuss the advantages and disadvantages of replacing backbone routers with
switches.
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47.
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Why would you need to use a virtual local area network?
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48.
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What are the basic functions of a router?
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49.
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What is the purpose of the following gateways: IBM host gateway, Internet
gateway, LAN gateway, and Firewall?
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50.
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What is meant by the following statement: A repeater is limited not only in
function, but also in scope?
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