• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/84

Click to flip

84 Cards in this Set

  • Front
  • Back
At a basic level, what is a network?
A group of two or more interconnected computers sharing information and resources.
Name two types of Networks
LAN- Local Area Network
WAN- Wide Area Network
Based on coverage area, what is a LAN?
Coverage is confined to a limited area such as a room, office, or building.
Based on coverage area, what is a WAN
Coverage connects LANs and can extend between cities and countries.
What are the three organizational models of Networks?
Peer to Peer
Client / Server
Domain-based
What are the most common wired network topologies?
Bus, Star, Ring, Mesh
Which of the most common wired network topologies is the most expensive to implement?
Mesh topology
How many bits make up a Media Access Control address?
48 bits
What notation is used to express a Media Access Control address?
12 Hex characters
What are the characteristics of 10Base5 - Thick Ethernet?
Used for Bus topology
Maximum segment length of 500 meters of RG-8 cable.
Supports up to 100 devices per segment.
Data speeds up to 10Mbps
What device is used on a 10base5 bus network cable to prevent signal reflections?
50 ohm terminator
How close can the connections be to each other on a 10base5 bus network?
No closer that 2.5 meters to each other.
What device provides the physical connection to the 10base5 network cable?
A transceiver or Access Unit Interface (AIU)
What is the maximum allowable distance between the AIU and the computer?
No further than 50 meters
What are the characteristics of 10Base2- Thin Ethernet (Thinnet)?
Used for Bus topology
Maximum segment length of 185 meters of RG-58 coax cable.
Supports up to 30 devices per segment.
Data speeds up to 10Mbps
What are the terminating requirements for a 10base2 (Thinnet) bus network?
The segment must have two end-point terminators to eliminated reflections. And, one of the terminators must be grounded.
What standards body control the specifications for UTP cabling?
Telecommunication Industry Association/Electronics Industries Alliance - TIA/EIA 568
What are the Categories for UTP and their maximum data speeds?
Cat1: Phone line
Cat2: 4 Mbps (ISDN & T1)
Cat3: 16 Mbps
Cat4: 20 Mbps
Cat5: 100 Mbps
Cat5e: 1 Gbps
Cat6: 10 Gbps
What does Bandwidth mean?
The measure of the amount of data that can be transmitted across a network connection in a fixed period of time
What are three types of data transfer protocols?
Full-Duplex
Half-Duplex
Simplex
What are six common Network protocols?
TCP/IP
IPX/SPX
NELink
NetBIOS
NetBEUI
AppleTalk
What is the NWLink network protocol?
It is Microsoft's version of IPX/SPX for Windows platforms.
Which network protocol does the Internet use?
TCP/IP
What is the importance of IP address 127.0.0.1
This is a loopback (localhost) address reserved for network testing.
What are the characteristics of a Class A IP network?
1 to 126 address range
129 networks
16,777,214 hosts
What are the characteristics of a Class B IP network?
128 to 192 address range
16,384 networks
65,534 hosts
What are the characteristics of a Class C IP network?
192 to 223 address range
2,097,152 networks
254 hosts
What are Class D and Class E IP networks?
Class D is used for Multicast
Class E is for experimentation
What is the range of private Class A addresses?
10.0.0.1
to
10.255.255.254
What is the range of private Class B addresses?
172.16.0.1
to
172.16.255.254
What is the range of private Class C addresses?
192.168.0.0 to 192.168.255.254
&
169.254.0.1 to 169.254.255.254
(APIPA) Automatic Private IP Addressing
How many bits make up an IPv6 address?
128 bits or 16 bytes
What are the two most common network hardware protocols?
Ethernet
Token Ring
Which network hardware protocol dominates the network landscape today?
Ethernet
What are the two types of coax cable used in an Ethernet bus topology network?
RG-8 for Thicknet
RG-58 for Thinnet
What access method do nodes use on a Ethernet bus topology?
CSMA/CD
What are the three Ethernet cabling types?
Coax
UTP
Fiber Optic
What is the color code for 568B?
White/Orange -1
Orange -2
White/Green -3
Blue -4
White/Blue -5
Green -6
White/Brown -7
Brown -8
What is the color code for 568A
White/Green -1
Green -2
White/Orange -3
Blue -4
White/Blue -5
Orange -6
White/Brown -7
Brown -8
In a 10BaseT network what is the maximum allowable distance between a Hub and Node?
100 meters
Theoretically, in a 10BaseT network what is the maximum number of nodes a hub can support?
1024 nodes
What is the maximum number of PCs a Token Ring network can support using Shielded Twisted Pair (STP) cabling?
260 PCs
What is the maximum number of PCs a Token Ring network can support using Unshielded Twisted Pair (UTP) cabling?
72 PCs
What is the maximum allowable distance between the MAU and the computer on a Token Ring network using Shielded Twisted Pair (STP) cabling?
100 meters
What is the maximum allowable distance between the MAU and the computer on a Token Ring network using Unshielded Twisted Pair (UTP)cabling?
45 meters
What is the LAN network topology of a Token Ring network?
A logical ring topology using an MSAU to form a physical star topology connection to all nodes.
What is the LAN network topology of a Ethernet network?
A logical bus topology using a Hub to form a physical star topology connection to all nodes.
In Windows 2000/2003, what are the navigation steps to get to the Network Identification Wizard?
Right-click My Computer
- Click Properties
-- Click Network Identification tab
--- Click Network ID button
In Windows XP, what are the navigation steps to get to the Network Identification Wizard?
Right-click My Computer
- Click Properties
-- Click Computer Name tab
--- Click Network ID button
What are the transmission data rates for USB 2.0 and 1.1 devices?
USB 2.0 at 480 Mbps
USB 1.1 at 12 Mbps
What are some key characteristics of FireWire?
IEEE 1394a support 400Mbps.
IEEE 1394b supports 1600Mbps.
Daisy-chain up to 63 FireWire devices.
Supports Hot-swapping devices.
What are commonly used fiber optic network cable connector types?
MT-RJ : Mechanical Transfer Registered Jack
ST
SC
LC
What are some characteristics of the MT-RJ fiber optic cable connector?
Connects small form factor devices.
Support full-duplex data transfer.
Similar appearance to RJ-45
What are some characteristics of the ST fiber optic cable connector?
Has a long straight tip center conductor.
Uses a push-and-turn-to-lock round collar.
Support single-mode or multimode fiber
What are some characteristics of the SC fiber optic cable connector?
Has a square molded plastic case.
Uses a push/pull locking action.
Support single-mode or multimode fiber.
Most common in fiber optic Ethernet networks
What are some characteristics of the LC fiber optic cable connector?
Small form factor connector resembling an SC connector.
Support single-mode or multimode fiber.
Used in high-density interconnections
Characteristics of the 802.11a Wi-Fi standard:
- 5 GHz frequency
- 54 Mbps max data rate
- 150 feet max distance
- or 20 meters -approximately
- WEP,WAP,SSID,and MAC filtering
- Eight usable channels
Characteristics of the 802.11b Wi-Fi standard:
- 2.4 GHz frequency
- 11 Mbps max data rate
- 300 feet max distance
- or 100 meters -approximately
- WEP,WAP,SSID,and MAC filtering
- Eleven usable channels
- Three non-overlapping channels
Characteristics of the 802.11g Wi-Fi standard:
- 2.4 GHz frequency
- 54 Mbps max data rate
- 300 feet max distance
- or 100 meters -approximately
- 802.11b compatible
- WAP,SSID, and MAC filtering
- Eleven usable channels
- Three non-overlapping channels
What are three technologies that Broadband supports?
Cable modem
Digital Subscriber Line (DSL)
Satellite
What infrastructure or medium does DSL use to deliver services to a computer?
Uses existing copper phone lines
Which type of network technology enables devices to communicate across countries?
Wide Area Network (WAN)
Which wireless technology communicates by dividing various geographical regions into sections?
Cellular
Which network cable connectors do you use to connect small form factor devices in a network via fiber optic cable?
LC connector
MT-RJ connector
What are the key characteristics of plenum cabling?
Coated in a fire-retardant cladding
Installed in the air-handling space such as above ceiling or below floor
Characteristics of the Infrared Data Association (IrDA) standard:
4 Mbps max rate
1 meter max distance
No security
Point-to-Point ad-hoc
Characteristics of Bluetooth
FHSS broadcast method
2.45 GHz range.
Hops across 79 frequencies 1600 times per second.
723Kbps to 1Mbps data rates
10 meters max range
What are three common Cellular network protocols?
Global System for Mobile Communications (GSM).
General Packet Radio Service (GPRS).
Code Division Multiple Access (CDMA).
In Microsoft Windows, what are the three graphical states for the Local Area Connections icon in the Network Connection window?
Active
Disabled
Disconnected
In Microsoft Windows, what is the graphical appearance of an active Local Area Connections icon in the Network Connection window?
An Icon of two small cascaded computer monitors with light blue screens.
In Microsoft Windows, what is the graphical appearance of a disabled Local Area Connections icon in the Network Connection window?
An Icon of two small cascaded computer monitors with gray screens.
In Microsoft Windows, what is the graphical appearance of a disconnected Local Area Connections icon in the Network Connection window?
An Icon of two small cascaded computer monitors with light blue screens and a red X to show a disconnect. If configured, a monitor icon with a red X is displayed on the taskbar.
What are the characteristics of the state indicator LEDs on a Network Interface Card?
One LED should display steady illumination to indicate a good network connection.
Another LED should randomly blink to indicate activity on the cable.
What should you do if a data collision light indicates collision on a router or computer?
Check the NIC cable for proper connection to its port.
Check the IP address and name for conflicts on the network.
Wait for a few moment to see it the network resolves the issue.
1. What must be installed on a computer to provide a physical and electrical connection to a network?
Network Interface Card (NIC)
2. After physically installing a PnP NIC, what else might be needed to configure the NIC?
Device driver
3. How far apart can two PCs be that share the same 100BaseT switch?
200 meters
4. Under ideal conditions what is the maximum data rate and range for the 802.11g standard?
54 Mbps at 300 feet
5. What is the minimum specification cable category that can support 100BaseT networks?
CAT 5
6. What cabling is needed to connect two stand-alone computers together using Ethernet peer-to-peer connection?
Crossover cable
7. What are the TIA/EIA standards for connecting an RJ-45 connector to UTP cables?
568A
568B
8. Which TCP/IP utility would you use if you suspect that a computer has a problem with its DHCP issued IP address?
ipconfig /renew
9. Which wireless network encryption protocol offers the best security?
WPA2
10. Bluetooth enabled computers can link into what type of wireless network?
Personal Area Networks (PAN)