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FDDI (Fiber Distributed Data Interface) |
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Definition
200 Mbps Token Passing Physical Star/ Logical Ring Fiber-optic or UTP implemented as CDDI |
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10 Mbps, 100 Mbps, 1000 Mbps and 10 Gbps CSMA/CD Physical Bus Logical Bus and Physical Star Logical Bus Coax or UTP |
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4 or 16 Mbps Token Passing Physical Star/ Logical ring STP |
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1, 2, 4, 10, 11 and 54 Mbps CSMA/CA No Topology None (Wireless) |
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RG-58 cable with BNC “T” connectors 185 meters 10 Mbps |
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RG-8 cables with Vampire tap transceivers 500 meters 10 Mbps |
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At least UTP Category 3 cable with RJ-45 connectors 100 meters 10 Mbps |
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Multimode fiber optic cable with ST or SC connectors 10 Mbps 2000 meters |
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At least UTP Category 3 cable with RJ-45 connectors Uses all four pairs of wires 100 meters 100 Mbps |
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At least UTP Category 5 cable with RJ-45 connectors 100 meters 100 Mbps |
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Multimode fiber optic cable with ST or SC connectors 100 Mbps 400 meters |
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Twinaxial shielded cable with DB-9 or HSSDC connectors 25 meters 1000 Mbps |
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SMF cable with SC and ST connectors 5 kilometers 1000 Mbps |
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MMF cable with SC and ST connectors *550 meters *max length varies by implementation 1000 Mbps |
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At least Category 5e UTP cable with RJ-45 connectors 1000 Mbps 100 meters |
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SMF cable with various connectors 40 kilometers 10 Gbps |
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SMF cable with various connectors 10 kilometers 10 Gbps |
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MMF with various connectors 10 Gbps 300 meters |
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LAN/MAN Bridging Management |
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Logical Link Control (LLC) |
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Carrier Sense Multiple Access/Collision Detection (CSMA/CD) - Ethernet |
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Token Passing Bus (Withdrawn) |
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Distributed Queue Dual Bus (DQDB) – Metropolitan Area Network (Withdrawn) |
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Broadband LAN (Withdrawn) |
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Isochronous LANs (Withdrawn) |
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Interoperable LAN/MAN Security (Withdrawn) |
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Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) Wireless LAN |
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Wireless Personal Area Network (WPAN) |
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Broadband Wireless Metropolitan Area Network (WMAN) |
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Resilient Packet Ring Access (RPA) |
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Mobile Broadband Wireless Access |
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Term
Which type of cable is used to connect these two devices? Computer to Computer |
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Term
Which type of cable is used to connect these two devices? Computer to Hub/Switch |
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Term
Which type of cable is used to connect these two devices? Hub/Switch without crossover port to Hub/Switch without crossover port |
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Definition
Crossover cable plugged into standard port |
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Term
Which type of cable is used to connect these two devices? Hub/Switch with crossover port to Hub/Switch with crossover port |
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Definition
Standard Patch cable. One end plugged into a standard port. The pother end plugged into the crossover port |
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<4ft <1Mbps POTS and ISDN connections |
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100 Meters 4 Mbps IBM Cabling System for token ring networks |
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100 Meters 16 Mbps Voice and data on 10BASE-T Ethernet networks |
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100 Meters 20 Mbps Used in 16 Mbps token Ring networks |
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100 Meters 100 Mbps 100BASE-T Ethernet Networks |
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100 Meters 1000 Mbps 100BASE-T and 1000BASE-T Ethernet networks |
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~100 Meters ~10 Gbps 100BASE-T and 1000BASE-T Ethernet networks and other implementations to be determined |
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Routable Addressing:20 Digit Hexadecimal Very Interoperable Naming Convention:Generally, only items with names are servers |
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Not Routable Addressing:Unique Name Not very Interoperable Naming Convetion:Unique Name |
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Routable Addressing:24 bit address Requires additional software for interoperability Naming Convention:Name Binding Protocol (NBP) |
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Routable Addressing:Dotted Decimal Most Interoperable Naming convetion:FQDN or NetBIOS |
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HARDWARE:Gateway and Proxy server PROTOCOLS:DNS, FINGER, FTP, HTTP, MIME, NFS, NNTP, POP3, SMB, SMTP, SNMP, Telnet and TFTP FUNCTIONS: 1. Take data from application 2. Ensure all necessary resources are available 3. Initialize services and the network for data transmission |
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HARDWARE:Gateway PROTOCOLS:ASCII, DIC, EBC, GIF, JPEG, PICT, and TIFF FUNCTIONS: 1. Reformat or translate between different character sets... 2. encrypting, decrypting and compression, decompression 3. Provides support for error recovery |
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HARDWARE:Gateway PROTOCOLS:NetBIOS, SAP, RPC, SQL, X-Windows FUNCTIONS: 1. Assumes a reliable virtual connection 2. Establishing, maintaining, synchronizing and terminating connections 3. Port numbers are assigned and maintained |
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HARDWARE:Gateway PROTOCOLS:Apple Talk Protocol(ATP), Name Binding Protocol(NBP), NetBEUI, Point to Point Tunneling Protocol(PPTP), Sequenced Packet Exchange(SPX), TCP, and UDP FUNCTIONS: 1. Packages data into segments 2. Provides flow control 3. Performs end-to-end transport of data |
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HARDWARE:Gateway, Router, Brouter PROTOCOLS:ARP,ICMP,IP,IPSec,IPX,NetBIOS/NetBEUI,OSPF,and RIP FUNCTIONS: 1. Break segmented data into packets and sequences them 2. Assign logical addresses to packets 3. Routes packets |
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HARDWARE:Gateway, Switch, Bridge, Wireless Access Points(WAP), NIC PROTOCOLS:802.1q,802.3(Ethernet),802.11a/b/g(Wireless),ATM,Frame relay,L2TP,PPP,PPTP,SLIP, and Token ring FUNCTIONS: 1. Break data packet into frames 2. Manages Hardware addresses (MAC) 3. Defines the topology of the network based on the IEEE 802.x standards 4. Provide error and flow control |
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HARDWARE:Gateway, Repeater, Hub, NIC, cables FUNCTIONS: 1. Physically, mechanically, and/or electronically connect network devices 2. Break frames into raw binary bits 3. Defines the network media used |
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Address Resolution Protocol |
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Dynamic Name System/Service PORT NUMBER:53 |
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File Transfer Protocol PORT NUMBERS:20/21 |
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Hypertext Transfer Protocol PORT NUMBER:80 |
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Secure Hypertext Transfer Protocol PORT NUMBER:443 |
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Internet Control Message Protocol |
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Internet Group Multicast Protocol |
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Internet Messaging Access Protocol version 4 PORT NUMBER:143 |
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Layer 2 Tunneling Protocol |
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Lightweight Database Access Protocol |
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Network news Transfer Protocol PORT NUMBER:119 |
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Network Time Protocol PORT NUMBER:123 |
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Post Office Protocol version 3 PORT NUMBER:110 |
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Point to Point Tunneling Protocol |
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Reverse Address Resolution Protocol |
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Simple File Transfer Protocol |
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Simple Mail Transfer Protocol PORT NUMBER:25 |
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Simple Network Management Protocol PORT NUMBER:161 |
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Secure Shell PORT NUMBER:22 |
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Transmission Control Protocol |
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Trivial File Transfer Protocol PORT NUMBER:69 |
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1.x.x.x to 126.x.x.x # hosts/network:16777214 Default Subnet Mask:255.0.0.0 Reserved Private IP Address Range: 10.0.0.1-10.255.255.254 or 10.0.0.0/8 |
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128.x.x.x to 191.x.x.x # hosts/network:65534 Default Subnet Mask:255.255.0.0 Reserved Private IP Address Range: 172.16.0.1-172.31.255.254 or 172.16.0.0/12 |
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192.x.x.x to 223.x.x.x # hosts/network:254 Default Subnet Mask:255.255.255.0 Reserved Private IP Address Range: 192.168.0.1-192.168.255.254 or 192.168.0.0/16 |
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ARP – Used to map MAC addresses to IP address |
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Definition
Switches Description -a Displays current ARP entries -d Deletes specified entry in ARP table -g Same as –a switch -s Adds static entry in ARP table |
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IPCONFIG – Used to display machines current network configuration. Used on Windows 9X, NT, 2000, and XP. |
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Switches Description /? Displays all available switches /all Displays all TCP/IP configuration information /Release Releases all TCP/IP info received from DHCP /Renew Releases then renews all TCP/IP info received from DHCP |
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NBTSTAT – Displays protocol statistics and current TCP/IP connections using NBT (NetBIOS over TCP/IP). |
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Switches Description -a [host] Displays a remote machines NetBIOS name table -A [ip] Displays remote machines NetBIOS name table -c Displays local name cache -n Displays local name table -r Displays how many NetBIOS names have been resolved to IP -R Purges NetBIOS name table and reloads LMHOSTS file -S Displays all NetBIOS sessions -s Same as –S, except it tries to resolve IP address into hostname |
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NETSTAT – Displays protocol statistics and current TCP/IP network connections including open ports on the computer. |
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Switches Description -a Displays all TCP and UDP connections -e Displays all packets sent out a NIC -r Displays current routing table -s Displays TCP, UDP, IP, and ICMP statistics -n Switch modifier (uses names instead of network addresses) -p Switch modifier (Specifies which protocol statistics to show) |
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NSLOOKUP – used to query a name server to find out which name resolves to which IP address. |
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Switches Description Type=mx Returns the responsible mail server for that domain Domain= Sets current domain name to Retry=x Specifies the number of retries (specified by x) |
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PING – used to verify connectivity with a specific IP address. |
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Switches Description -? Displays a list of available switches -a Resolves the pinged address to host name -n# Pings specified host a number of times (specified by the # sign) -t Pings host continuously until you press Ctrl-C |
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used to trace a packet from your computer to an Internet host, showing how many hops the packet requires to reach the host and how long each hop takes. |
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Used to display machines current network configuration. Used on Windows 95, Windows 98 and Windows Millennium computers. |
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Uses 2 64 Kbps Bearer (B) Channels and 1 16 Kbps Delta (D) Channel. Maximum 128 Kbps data rate. |
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Uses 23 64 Kbps Bearer (B) Channels and 1 64 Kbps Delta (D) Channel. Maximum 1.472 Mbps data rate. |
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Spreading Data across multiple disks Data written to first disk until full, then successive disks No increased performance No fault tolerance |
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Spreading data across multiple disks Disks are logically seen as one large disk Provides fast read/write performance No fault tolerance |
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Use two disks to make an exact duplicate of data on both disks Use when data needs to be accessible 24X7 If one disk should fail the other disk will still function and will have an exact copy of the data |
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Same as mirroring except each disk uses a separate disk controller for added redundancy |
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RAID-5 Disk Striping with Parity |
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Spreading data across at least three disks Data is written to the disk and parity information about the data is written to another disk If one disk should stop working, all data restored from the parity information saved on the other disks |
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Backs up every selected file, regardless of the archive attribute setting Clear Archive bit:No |
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Backs up every selected file that has changed that day, regardless of the archive attribute setting Clear Archive bit:No |
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Type of Backup:Differential |
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Backs up only those files created or changed since the last normal or incremental backup (Those files with the archive bit on). This method is also used in combination with a periodic full backup. For example, a Normal/Full backup on Mondays and a differential backup on the remaining days of the week. Backs up more data per day but restoration time is quicker. In case of a restore, you will only need to restore the last normal backup and the last differential backup Clear Archive bit:No |
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Type of Backup:Normal/Full |
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Backs up every selected file, regardless of the archive attribute setting Clear Archive bit:Yes |
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Type of Backup:Incremental |
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Backs up only those files created or changed since the last normal/full or incremental backup. (Those files with the archive bit on) You use this method in combination with a normal/full backup. For example, a normal/full backup on Mondays and an incremental backup on the remaining days of the week. Backs up less data per day so backup times are quicker. However, restoration times are generally longer because you will need to restore the last normal/full backup as well as all incremental backups since the last normal backup Clear Archive bit:Yes |
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