220-801 Networking
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each of the black spaces below before clicking
on it to display the answer.
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| Port Number: FTP | 21 Control
20 Data Transfer (standard / passive mode)
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| Port Number: SSH | 22
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| Port Number: SSH Port Forwarding | 22
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| Port Number: Telnet | 23
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| Port Number: SMTP | 25
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| Port Number: DNS | 53
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| Port Number: TFTP | 69
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| Port Number: RDP | 3389
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| Port Number: HTTP | 80
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| Port Number: POP | 110
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| Port Number: IMAP | 143
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| Port Number: HTTPS | 443
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| Port Number: SSL | 443
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| Port Number: SMTPS | 465
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| Port Number: IMAPS | 993
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| Port Number: POP3S | 995
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| Class A first octet range | 1 to 126
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| Class B first octet range | 128 to 191
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| Class C first octet range | 192 to 223
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| Private IP address ranges | 10.0.0.0 - 10.255.255.255
172.16.0.1 - 172.31.255.255
192.168.0.0 - 192.168.255.255
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| Port Number: SFTP | 22 by default (default port for SSH)
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| Well known port range | 0 to 1023
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| Registered port range | 1024 to 49,151
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| Dynamic port range | 49,152 to 65,535
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| Maximum Transmission Speed: CAT3 | 10 Mbps
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| Maximum Transmission Speed: CAT5 | 100 Mbps
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| Maximum Transmission Speed: CAT5e | 1000 Mbps
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| Maximum Transmission Speed: CAT6 | 10 Gbps
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| This type of ISDN uses two 64-Kbps channels providing a maximum speed of 128 Kbps. Mainly used by homes and small businesses. It also has a 16-Kbps signal control channel. | BRI (Basic Rate Interface)
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| This type of ISDN connection uses 23 64-kbps data channels and one 64-kbps control channel. | PRI (Primary Rate Interface) In the US, this is a T1 and provides approx. 1.5 Mbps.
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| Range of Bluetooth Class 1 | 100 meters (328 feet)
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| Range of Bluetooth Class 2 | 10 meters (33 feet)
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| Range of Bluetooth Class 3 | 5 meters (16 feet)
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| SC | Fiber optic cable connector. Short for square connector
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| LC | Fiber optip cable connector. SHort for Lucent Connector. It's a miniaturized SC connector and is popular in new installations.
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| ST | Straight tip fiber optic connector. Connector is round.
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| Originally used with cable TV connections and efficient when transmitting analog signals. It was used in some early networks but can transmit only a limited amount of data. Uses BNC connectorrs. | RG-59
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| Has a larger center conductor and additional shielding. Has become the standard used with cable/satellite TV because it is more efficient when transmitting digital signals. Networks still on coaxial cable today would use this. F-type screw on connector. | RG-6
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| Cable Type Identifier: 2, 5, C | Indicates coaxial cable. Example: 10Base2
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| Cable Type Identifier: T | Inidcates twisted pair cable
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| Network Topology: Multiple devices connected to a central device (switch, hub). | Star
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| Network Topology: Multiple devices connected to each other in a logical line. Ends must be terminated to prevent signals from bouncing endlessly. If one device becomes disconnected to there is a break in the line, all devices will lose connectivity. | Bus
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| Network Topology: All devices logically configured in a single circle or ring. Data travels around the rung to different devices. | Ring
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| A type of token ring topology that uses fiber optic cable and two rings. The second ring provides a redundant path that can be used if the first path fails. | Fiber Distributed Data Interface (FDDI)
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| Many ring networks added this device. Computers were still in a logical ring, however if a computer failed, this device sensed the failure did not allow the ring to be passed to the failed device. | Multistation Access Unit (MAU)
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| Network Topology: Each device has a direct connections with all other computers in the network. Very redundant and rare due to high expense to implement. | Mesh
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| Network Topology:A combination of any two or more topologies. | Hybrid
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| Protocol used within a network to encrypt traffic. This protocol uses port 22. | Secure Shell (SSH)
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| Protocol commonly used to encrypt web traffic. Uses port 443 by default, but may use other ports depending on the protocol being encrypted. | Secure Sockets Layer (SSL)
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| Designated replacement for SSL. Can be used anywhere SSL is used. | Transport Layer Security (TLS)
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| This protocol is used to send e-mail from a user's computer to the mail server. | SMTP (Simple Mail Transfer Protocol) - Think of 'SM' for send mail.
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| This protocol is used to receive e-mail from a mail server. When this protocol is used, e-mail is generally deleted from the server as it is downloaded. | POP3 (Post Office Protocol) - Think of messages popping off the e-mail server.
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| This protocol is used to receive e-mail from a mail server. Server retains messages as they are downloaded. Additional capabilities include organazing e-mail into folders and search. | IMAP (Internet Message Access Protocol)
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| Protocol used to transfer files over the network, primarily Windows networks. Uses NetBIOS over TCP with ports 137, 138 & 139 by default. If used directly over TCP port 445. | Server Message Block (SMB)
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| Multicast address range | 224.0.0.1 - 255.255.255.254
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| Used to identify the network ID with an IPv6 Address | Prefix (ex. /48)
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| IPv6 Loopback address | String of zeros, with a one at the end. Expressed as ::1
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| Wireless Protocols: Max Speed, Frequency and Range for 802.11a | 54 Mbps, 5.0 GHz, lowest range of all wireless standards (30m / 100ft)
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| Wireless Protocols: Max Speed, Frequency, and Range for 802.11b | 11 Mbps, 2.4 GHz, medium range (35m / 115ft)
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| Wireless Protocols: Max Speed, Frequency, and Range for 802.11g | 54 Mbps, 2.4 GHz, medium range (38m / 125ft)
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| Wireless Protocols: Max Speed, Frequency and Range for 802.11n | 600 Mbps (300 Mbps common) 2.4 Ghz or 5.0 GHz, highest range (70m / 230ft)
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| Type of encryption used with WPA. Designed to make WPA more secure than WEP while using existing hardware (may require firmware update) | Temporal Key Integrity Protocol (TKIP)
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| Type of encryption used with WPA2. Provides stronger security than WEP or WPA. This standard is also used in other IT applications for data encryption. | Advanced Encryption Standard (AES)
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| Command Line Tool: Shows network statistics, including a list of inbound and outbound connections for a system. | Netstat
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| Command Line Tool: Shows statistics for NetBIOS. | Nbtstat
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| Command Line Tool: Used to map drives to remote shares. | Net Use
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