Term
| What are the three basic functions a computer performs? |
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Definition
| Processing, Input, Output |
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Term
| What executes instructions provided by computer programs? |
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Definition
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Term
| When a CPU is composed of two or more processors, each one is referred to as what? |
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Definition
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Term
What is considered long term storage?
a. Flash Drive
b. RAM
c. Working Storage
d. Hard Drive |
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Definition
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Term
| Which motherboard component controls data transfers between memory, expansion slots, I/O devices and the CPU? |
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Definition
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Term
| Which type of connector should the CPU have to install a new high-performance graphics card? |
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Definition
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Term
The time it takes for read/write heads to move to the correct spot on the platter is:
a. Rotational Delay
b. Seek Time
c. Transfer Time
d. Access Time |
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Definition
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Term
| What tasks are performed by the BIOS? |
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Definition
| Initializes the motherboard hardware, performs a power-on self test (POST), and beginning the boot procedure. |
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Term
| What is the computer boot procedure sequence? |
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Definition
- Power is applied to the mother board
- The CPU starts
- The CPU carries out the BIOS startup routines, including the POST.
- Boot devices, as specified in the BIOS configuration, are searched for an OS.
- The OS is loaded into RAM.
- OS services are started.
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Term
Which of the following is a critical service provided by the OS?
A. POST
B. Memory Management
C. Web Browsing
D. File System
E. Storage |
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Definition
| Memory Management, File System |
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Term
| An OS's capability to run more than one application or process at the same time is referred to? |
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Definition
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Term
| What additional software must be installed to allow the OS to communicate with a new NIC? |
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Definition
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Term
Which of the following requests information stored on another computer?
A. NIC
B. Network Client
C. Network Server
D. Network Protocol
E. Device Driver |
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Definition
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Term
| What is the order process for user's attempting to access network resources? |
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Definition
- Application
- Network Client
- Network Protocol
- NIC Driver
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Term
| TCP/IP is an example of what? |
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Definition
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Term
| What address is used to deliver a frame to the correct computer on the network? |
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Definition
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Term
| What message is used to determine whether a computer is listening on the network? |
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Definition
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Term
| What does TCP/IP use to look up a computer's IP address, given it's name? |
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Definition
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Term
| The unit of information containing MAC addresses and an error-checking code that's processed by the network interface layer is referred to as what? |
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Definition
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Term
| Data is processed from the time an application creates it to the time it reaches the network medium is known as what? |
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Definition
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Term
Which of the following characteristics is associated with a peer-to-peer network?
A. Inexpensive
B. Centralized Control
C. Decentralized data storage
D. User-managed resources
E. Uses a directory service |
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Definition
| Decentralized data storage, Inexpensive, and User-managed resources. |
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Term
| A device interconnecting five CPU's and a printer in a single office creates what network configuration? |
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Definition
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Term
| When LAN's are connected via a third party telecommunications company, this network configuration is known as what? |
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Definition
| Metropolitan Area Network (MAN) |
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Term
| What uses high-speed networking technologies to give servers fast access to large amounts of disk storage? |
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Definition
| Storage Area Network (SAN) |
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Term
Which of the following is a limitation of early networks that used a daisy-chain method of connecting computers?
A. Total number of computers that could be connected.
B. The processing speed of the computers connected
C. Cable length
D. No Internet access |
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Definition
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Term
| What is the job of a repeater? |
|
Definition
| A network device that takes incoming signals and regenerates, or repeats them to other parts of the network. (Strengthens them) |
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Term
| What are characteristics of HUBS? |
|
Definition
- Operates in half-duplex mode
- Usually has four or more ports
- Transmits regenerated signals to all connected ports
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Term
| What is the unit of measurement by which a hub's bandwidth is usually specified? |
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Definition
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Term
| What describes how devices connected to a hub use the speed at which the hub can transmit data? |
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Definition
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Term
What are likely indicator lights on a hub?
A. CRC error
B. Link Status
C. Connection Speed
D. Activity
E. Signal Strength |
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Definition
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Term
| What describes how devices connected to a switch use the speed at which the switch can transmit data? |
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Definition
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Term
| What does a switch use to create its switching table? |
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Definition
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Term
| What purpose does the timestamp serve in a switching table? |
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Definition
| Tells the switch when to delete an entry. |
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Term
| What feature of a switch allows devices to effectively communicate at 200 Mbps on a 100 Mbps switch? |
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Definition
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|
Term
Which device is a wireless access point most similar in how it operates?
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Definition
|
|
Term
| What's the purpose of an RTS signal in wireless networking? |
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Definition
| It allows a client to notify the AP that it's ready to send data. |
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Term
What is a common operational speed of a wireless network?
-
10 Kbps
-
110 Gbpa
-
600 Kbps
-
11 Mbps
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|
Definition
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Term
| What tasks are performed by a NIC and it's Driver? |
|
Definition
- Provides connection to the network medium
- Receives packets from the network protocol and creates frames
- Adds error-checking data to the frame
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Term
Which of the following best describes a MAC address?
- A 24-bit number expressed as 12 decimal digits
- Two 24-bit numbers, in which one is the OUI
- A 48-bit number composed of 12 octal digits
- A dotted decimal number burned into the NIC
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Definition
| Two 24-bit numbers, in which one is the OUI |
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Term
Under which circumstances does a NIC allow inbound communications to pass through the interface?
-
The source MAC address is the broadcast address.
-
The destination MAC address matches the built-in MAC address.
-
The destination MAC address is all binary 1s.
-
The NIC is operating in exclusive mode.
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Definition
|
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Term
| How does the protocol analyzer capture all frames? |
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Definition
| It configures the NIC to operate in promiscuous mode. |
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Term
| In Windows 7, what displays information about currently installed NICs? |
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Definition
|
|
Term
| What is the purpose of an SSID? |
|
Definition
| Identifies a wireless network. |
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Term
Which of the following decribe the function of routers?
- Forward frames from one network to another
- Connect LANS
- Attach cpu's to the internetwork
- Work with packets and IP addresses
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|
Definition
|
|
Term
| What information is found in a routing table? |
|
Definition
| Network address and interfaces |
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Term
| If a router receives a packet with a destination network address unknown to the router, what will the router do? |
|
Definition
|
|
Term
Which of the following is true about routers?
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Definition
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Term
| Windows 7, Windows Vista, and Windows XP are all examples of what? |
|
Definition
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|
Term
| For any device to communicate with a cpu, either through input or output, it must have what special software installed? |
|
Definition
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|
Term
| What command would you issue from a command prompt to see a listing of the computers in your workgroup? |
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Definition
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Term
| When data is being prepared for transmission onto the network, it is broken into small pieces and a header and trailer are added to each piece to help identify it. What is this process called? |
|
Definition
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|
Term
| When a cpu provides more than one processor, what is this cpu called? |
|
Definition
|
|
Term
| Every NIC embedded with a unique address that consists of a 12-digit hexadecimal value. What is this address called? |
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Definition
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|
Term
| Which component on the motherboard carries out all the instructions provided by computer programs? |
|
Definition
|
|
Term
| What protocol does a computer use to learn MAC addresses? |
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Definition
|
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Term
| Why would a repeater be used in a network? |
|
Definition
| To strengthen the signal for networks that have long distances. |
|
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Term
| What is the purpose of the default route? |
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Definition
| It's where the router sends all packets with destinations which it has no knowledge. |
|
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Term
| What command would you use from the command prompt to test a computers connectivity to a network? |
|
Definition
|
|
Term
| The SSID is configured on what so it can be distinguished from other available wireless networks? |
|
Definition
|
|
Term
| When referring to network bandwidth, what is the basic unit of measurement? |
|
Definition
|
|
Term
| What does the first set of 24-bit number in a MAC address represent? |
|
Definition
| The organizationally unique identifier for the manufacturer of the device. |
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Term
| What command issued from the command prompt will show the route a packet travels from the issuing computer to another computer? |
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Definition
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Term
| The arrangement of cabling and how cables connect one device to another ina network is known as what? Also considered the lay of the land. |
|
Definition
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|
Term
| The path data travels between computers on a network is considered the network's what? |
|
Definition
|
|
Term
| All networks today are based on what basic physical topologies? |
|
Definition
- Bus
- Star
- Ring
- Point-to Point
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Term
A _______ is an electrical component called a resistor that absorbs the signal instead of allowing it to bounce back up the wire. |
|
Definition
|
|
Term
| Signal travel across the medium and from device to device is called what? |
|
Definition
|
|
Term
What topology uses a central device to connect computers? |
|
Definition
|
|
Term
| What are the advantages of the physical star topology? |
|
Definition
- Much faster technologies than a bus
- Centralized monitoring and management of network traffic is possible
- Easier network upgrades
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|
Term
| When several hubs or switches must be connected, usually one device is used as central connecting point, this forms what topology? |
|
Definition
Extended Star Topology (sometimes referred to as a "hierarchical star") |
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|
Term
What topology uses a direct link between two devices, is most widely used in WANs, and can include a wireless bridge, and is used to connect two computers? |
|
Definition
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|
Term
This topology connects each device to every other device in a network. Also found in large WANs and internetworks. |
|
Definition
|
|
Term
| The method a NIC uses to access the medium and send data frames is referred to as what? |
|
Definition
|
|
Term
| Lan network technologies include what types? |
|
Definition
- Ethernet
- 802.11 wireless
- Token Ring
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|
Term
| WAN network technologies include what types? |
|
Definition
|
|
Term
|
Definition
- UTP
- Fiber-optic
- Coaxial
- STP
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|
Term
| This band sends digital signals in which each bit of data is represented by a pulse of electricity or light. |
|
Definition
|
|
Term
| This band uses analog techniques to encode binary 1s and 0s across a continuous range of values. |
|
Definition
|
|
Term
| Rules that govern how and when the medium can be accessed for transmission is known as what? |
|
Definition
|
|
Term
| Ethernet uses what media access? |
|
Definition
| Carrier Sense Multiple Access with Collision Detection (CSMA/CD) |
|
|
Term
| Examples of Wi-Fi Security. |
|
Definition
- Wi-Fi Protected Access (WPA)
- WPA 2
- Wired Equivalent Privacy (WEP)
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|
|
Term
|
Definition
- Uses carrier sense multiple access with collision avoidance (CSMA/CA)
- Uses request-to-send/clear-to-send (RTS/CTS) packets and acknowledgments
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|
|
Term
| Networks can be described by which topologies? |
|
Definition
|
|
Term
| What are the primary physical topologies |
|
Definition
- Bus
- Star
- Ring
- Point-to-Point
|
|
|
Term
| What are the primary logical topologies? |
|
Definition
|
|
Term
What defines how a network interface accesses the medium to send data frames and the structure of the frames? |
|
Definition
|
|
Term
| The most common technology for LANs is what? |
|
Definition
|
|
Term
Wi-Fi is a wireless technology based on ________ but uses the ________ media access method. |
|
Definition
|
|
Term
| What technologies are used to access the internet? |
|
Definition
- cable modem
- DSL
- satellite
- WiMax
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Term
| What are some criterias for choosing network media? |
|
Definition
- Bandwidth rating
- Maximum segment length
- Interference and Eavesdropping
- Cable Grade
- Connection Hardware
- Ease of installation
- Testability
- Total Cost
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|
|
Term
|
Definition
- Coaxial
- Twisted-Pair Cable (Unshielded and Shielded)
- Fiber-optics
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|
Term
| Which twisted-pair cable includes shielding to reduce crosstalk and interference? |
|
Definition
|
|
Term
| STP and UTP uses what kind of connectors? |
|
Definition
| Registered Jack 45 (RJ-45) |
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|
Term
What is used to terminate long runs of cable from where the computers are to wiring closets where the switches and hubs are? |
|
Definition
|
|
Term
| These hold network equipment such as routers and switches, plus patch panels and rack-mounted servers. |
|
Definition
|
|
Term
| Specifies how cabling should be organized, regardless of the media type or network architecture. |
|
Definition
|
|
Term
| Large networks typically use which components? |
|
Definition
- Work Area
- Horizontal Wiring
- Telecommunication Clostes
- Equipment Rooms
- Backbone or Vertical Wiring
- Entrance Facilities
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|
Term
| Where workstations and other user devices are located is known as what? |
|
Definition
|
|
Term
| This type of wiring runs from the work area's wall jack to the telecommunication closet and is usually terminated at a patch panel. |
|
Definition
|
|
Term
| This room houses servers, routers, switches, and other major network equipment and serve as a connection point for backbone cabling. |
|
Definition
|
|
Term
| This type of cabling interconnects TCs and equipment rooms. |
|
Definition
|
|
Term
| The location of the cabling and equipment that connects a corporate network to a third-party telecommunications provider is known as what? |
|
Definition
|
|
Term
| What are the two standards of arrangement of wires? |
|
Definition
|
|
Term
| What type of cable will need to be used when connecting two like devices? |
|
Definition
|
|
Term
| Standard patch cables are called what? |
|
Definition
|
|
Term
|
Definition
- Includes a single, small diameter fiber at the core (8 Microns)
- Costs more and generally works with laser-based emitters
- Spans the longest distances
- Used in higher-bandwidth applications
|
|
|
Term
|
Definition
- Uses a considerably larger diameter fiber at the core (50 and 62.5 microns)
- Costs less than SMF
- Works with lower-power light emitting diodes (LEDs)
- Spans shorter distances
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|
|
Term
| What are some types of wireless networks? |
|
Definition
- Local area network (LAN)
- Extended LANs
- Internet Service
- Mobile Computing
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|
|
Term
| What are some types of wireless LAN components? |
|
Definition
- Network interface attaches to an antenna and an emitter rather than to a cable.
- Transceiver/access point- a transmitter/receiver device that must be installed to translate between wired and wireless networks.
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|
|
Term
| What are the most commonly used frequencies for wireless data communications? |
|
Definition
|
|
Term
| Wireless LANs make use of four primary technologies for transmitting and receiving data. What are they? |
|
Definition
- Infrared
- Laser
- Narrowband (single-frequency) radio
- Spread-spectrum radio
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|
Term
| This is part of a wireless extended LAN technology and can connect networks up to 3 miles apart. |
|
Definition
|
|
Term
| These systems deliver higher transmission rates than radio-based systems. |
|
Definition
|
|
Term
| Three main media choices for LAN are what? |
|
Definition
|
|
Term
| Wired networking media comes in two primary categories. What are they? |
|
Definition
|
|
Term
| Twisted-pair cabling comes in two types. What are they? |
|
Definition
|
|
Term
| What are types of twisted-cabling components? |
|
Definition
- connectors
- patch cables
- patch panels
- jacks
- distribution racks
|
|
|
Term
| A structured cabling plant consists of what? |
|
Definition
- work areas
- horizontal wiring
- telecommunications closets
- equipment rooms
- backbone cabling
- entrance facilities
|
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|
Term
| What kind of cabling uses pulses of light to represent bits and is immune to EMI, RFI, and electronic eavesdropping. |
|
Definition
|
|
Term
| Wireless networks can be subdivided into what type of networks? |
|
Definition
- LANs
- Extended LANs
- Mobile Computing
|
|
|
Term
| A NIC, an antenna, and a transceiver or access point are components of what? |
|
Definition
|
|
Term
| Networks combining what have become the norm in todays standards? |
|
Definition
| Fiber-Optic, UTP, Wireless |
|
|
Term
| The average amount of time platters take to spin into position is called what? |
|
Definition
| Rotational Delay or Latency |
|
|
Term
| The time it takes platters to read or write data is called what? |
|
Definition
|
|
Term
| The average amount of time between the request to read or write data and the time the action is completed is referred to as what? |
|
Definition
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