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81 Cards in this Set
- Front
- Back
Which type of network are the workstations in close proximity to each other, usually within the same building?
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Local Area Network (LAN)
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Which type of network are the workstations basewide as in one command connected to another command or one base connected to another base?
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Metropolitan Area Network (MAN)
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How many primary modes of system operation are there?
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2 |
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How many common situations for rebooting the system are there? |
4 |
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Which term refers to the process of recording events and using that information to detect usage violations or to confirm that network procedures are operating correctly? |
Auditing |
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What is defined as a mechanism by which one computing element can get the attention of another element? |
Interrupt |
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How many Interrupt Request Lines (IRQs) for hardware interrupts are there in a PC environment? |
16 |
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What is defined as a connection on the back of a computer where you connect peripherals, switches, networks, or other devices? |
Port |
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Which type of hardware connection is used to send data one bit at a time and is very good for sending information over a long distance? |
Serial |
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Which names are reserved by DOS to reserve the first serial and parallel ports, respectively? |
COM1 and LPT1 |
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During the pinging process what is the ping that is sent out called? |
Echo message |
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What prevents files from being updated by more than one user at a time? |
Data Integrity |
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Which term refers to duplicate hardware and network facility segments that are available at all times? |
Redundancy |
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What is the physical arrangement of a LAN’s components called? |
Topology |
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What are the three major types of LAN configurations or topologies? |
Star, Bus, and Ring |
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Which type of network is each component connected directly to the central computer or network server? |
Star |
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Which type of network are all components or nodes connected to the same cable, and the far ends of this cable never meet? |
Bus |
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Of all the topologies which is the least reliable because it has a single point of failure? |
Star |
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What is the wiring concentrator which allows workstations to be either inserted or bypassed on the ring? |
Multi-station Access Unit (MAU) |
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What define how networks establish communications between elements, exchange information, and terminate communications? |
Protocols |
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How many major functions do protocols have? |
2 |
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Which control procedure sends multiple blocks of data and returns a single acknowledgement for many blocks, thereby increasing the amount of time spent transmitting data? |
SDLC |
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What are the two principal network access methods? |
Contention and Token passing |
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How many layers does the OSI model consist of? |
7 |
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What provides a basis for coordinating the development of standards that relate to the flexible interconnection of incompatible systems using data communications facilities? |
Open Systems Interconnection (OSI) model |
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Which layer of the OSI model is the physical layer? |
1 |
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Which layer of the OSI model is the data link layer? |
2 |
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Which layer of the OSI model is the network layer? |
3 |
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Which layer of the OSI model is the transport layer? |
4 |
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Which layer of the OSI model is the session layer? |
5 |
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Which layer of the OSI model is the presentation layer? |
6 |
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Which layer of the OSI model is the application layer? |
7 |
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Which layer of the OSI model addresses the electrical, mechanical, and functional interface to the carrier? |
Physical |
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Which layer of the OSI model provides error-free transmission of information over the physical medium? ( |
Data link |
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Which layer of the OSI model decides which physical pathway the data should take? |
Network |
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Which layer of the OSI model ensures data units are delivered error- free, in sequence, with no losses or duplications? |
Transport |
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Which layer of the OSI model performs the functions that enable two applications to communicate across the network, performing security, name recognition, logging, administration, and other similar functions? |
Session |
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Which layer of the OSI model provides a common representation of data that can be used between the application processes? |
Presentation |
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Which layer of the OSI model provides data encryption for privacy and authentication? |
Presentation |
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Which layer of the OSI model represents the services that directly support users and application tasks? |
Application |
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What is by far the cheapest type of transmission media? |
Twisted-wire pairs |
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What are the two most common types of twisted-pair media? |
22 and 24 gauge |
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What is the transmission rate of a T1 line? |
1.5 Mbps |
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What is the transmission rate of a T2 line? |
6.3 Mbps |
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What is the transmission rate of a T3 line? |
46 Mbps |
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What is the transmission rate of a T4 line? |
281 Mbps |
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Coaxial cable is used extensively in local-area networks whenever the distance involved is relatively short, generally less than 2 miles for baseband LANs and how many miles for broadband LANs? |
10 |
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What is defined as a software package that makes it possible to implement and control a network and enables users to use the resources and services on that network? |
Network Operating System (NOS) |
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What are used to secure a Local Area Network from a public network? |
Firewalls |
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What can be used to amplify electrical signals? |
Repeaters |
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What make it possible to interconnect like LANs? |
Bridges |
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What enable networks to communicate using the most efficient path? |
Routers |
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What make it possible to interconnect unlike LANs? |
Gateways |
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Which layer of the OSI model do repeaters work at? |
1 |
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Which layers of the OSI model do bridges work on? |
1 and 2 |
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Which layer of the OSI model do routers work on? |
3 |
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Which layers of the OSI model can a brouter work on? |
2 or 3 |
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Which layer of the OSI model do gateways work on? |
7 |
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What serves as a termination point for cable running from individual nodes in a network? |
Concentrator |
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Which device serves as a common termination point that can relay signals along the appropriate paths? |
Hub |
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Which type of transmission media is immune to interference caused by electrical or electronic devices? |
Fiber |
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Which type of cable refers to the cable that forms the main trunk of a network? |
Backbone |
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How many different types of backbone cable are recognized by EIA/TIA-568? |
4 |
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What is the central computer in a network that is responsible for managing the network? |
Server |
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Which type of servers can be used as both a server and a workstation? |
Non-dedicated |
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What are the majority of all network-related problems caused by? |
operator error |
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How many primary culprits to network malfunctions are there? |
3 |
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How many categories are component failures categorized into? |
2 |
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What are the simple set of system checks called that are stored in ROM that are run when the computer is turned on? |
Power On Self Test (POST) |
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Which device can be used to monitor the activity of a network and the stations on it and provides daily summaries or long-term trends of network usage and performance? |
Network analyzer |
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What is the simultaneous presence of signals from two nodes on the network referred to as? |
Data collision |
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What is the hardware signal that is sent from a potential transmitter to a destination to indicate that the transmitter wishes to begin a transmission? |
Request To Send (RTS) |
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What is the hardware signal that is sent from a receiver to a transmitter to indicate that the transmitter can begin sending? |
Clear To Send (CTS) |
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Which term is used to describe the random electrical signals that become part of a transmission, that serve to make the signal component of the transmission more difficult to identify? |
Noise |
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How is the Signal-to-Noise Ratio (SNR) usually expressed? |
dB |
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What can be used to determine how long a cable segment can be before the signal loss is unacceptably high? |
Signal-to-Noise Ratio (SNR) |
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What is defined as the decrease in signal strength, measured in decibels (dB) per 100 feet? |
Attenuation |
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What is defined as interference in the form of a signal from a neighboring cable or circuit? |
Crosstalk |
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What is used to try to eliminate the effects of certain types of distortions on the signal? |
Line conditioning |
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Which device is used to test the integrity of a section of cable before the cable is even unwound? |
Time Domain Reflectometry (TDR) |
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Which type of connector uses two prongs to pierce the cable to make its connection?
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Vampire tap
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