Network+ Cheat Sheet N10-005

Network+ Cheat Sheet N10005 Ethernet Standard 10Base-T

Maximum Transmission Speed (Mbps) 10

Maximum Distance per Segment (m) 100

Routing protocol RIP RIPv2 BGP OSPF IS-IS EIGRP

Physical Media

Frequency range (GHz)

Theoretical maximum

Approximate effective

Location Interior Interior Exterior Interior / Exterior Interior Interior / Exterior

Binary Conversion:

Cat 3 or better UTP 100Base-TX 100 100 Cat 5 or better UTP 1000Base-T 1000 100 Cat5e or better UTP preferred (Cat 5 OK) 10Gbase-T 10,000 100 Cat 6 or Cat 7 (preferred) 100Base-FX 100 2000 Multimode Fiber 1000Base-SX 1000 Up to 500* Multimode Fiber 1000Base-LX 1000 Up to 5000* Single-mode or Up to 550* Multimode fiber 10GBase-SR 10,000 Up to 300* Multimode 10GBase-SW fiber 10GBase-LR 10,000 10,000 Single-mode 10GBase-LW fiber 10GBase-ER 10,000 40,000 Single-mode 10GBase-EW fiber *depends on signaling wavelength and fiber core diameter Wireless LAN

Type Distancevector Distancevector Distancevector Link-state Link-state Hybrid

Bit position: Exponential: Value if “1”:

7 6 27 26 128 64

5 25 32

4 24 16

3 23 8

2 22 4

1 21 2

0 20 1

Examples: 00000111 = 0 + 0 + 0 + 0 + 0 + 4 + 2 + 1, or 7 01011010 = 0 + 64 + 0 + 16 + 8 + 0 + 2 + 0, or 90 11111111 = 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1, or 255

Wireless Wan Technolog y 3G – HSPA+

(N/A) WiMAx (802.16e) 4G – Average WiMAX 2 geographic

Voice Switching

Data Switching

Circuit

Packet

Packet

Packet

Packet

Packet

Maximum Theoretic al Downlink Throughp ut (Mbps) 84 (with promises of 336) 70

120 (with promises

Maximum Theoretical Uplink Throughput (Mbps) 11

70

60

Standard 802.11b 802.11a 802.11g 802.11n

2.4 5 2.4 2.4 or 5

IPv4 Network Class

Beginning Octet

A B

-126 128-191

C

192-223

throughput (Mbps) 11 54 54 65 to 600

Default Subnet Mask 255.0.0.0 255.255.0. 0 255.255.25 5.0

throughput (Mbps) 5 11-18 20-25 65-600

Number of Networks

16,777,214 65,534

>2,000,000

254

127.0.0.1 10.0.0.0 through 10.255.255.255 172.16.0.0 through 172.31.255.255 192.168.0.0 through 192.168.255.255 169.254.1.0 through 169.254.254.255 Addresses whose host information = 255 (for example, 199.34.85.255) Addresses whose host information = 0 (for example, 199.34.89.0)

6. Presentation

Maximum Hosts per Network

126 >16,000

IPv4 Special Address(es)

OSI Model Layers 7. Application

(802.16m range (m) ) 100 20 4G - LTE 100 Up to 400 if MIMO used

Function Provides interface between software applications and network for interpreting application requests and requirements Allows hosts and applications to use a common language; performs data formatting, encryption, and

Function Loopback Private Private Private Link local Broadcast Network ID

Hardware Gateways, Proxy servers, Application switches, Content filtering firewalls

Packet

Packet

IPv6 address format: Bits: 0 128 | | Prefix

of 1000 for fixed clients) 1000

500

64 | Interface ID

Example: 2608:FE10:1:A: 002:50FF:FE2B:E708 IPv6 Special Address(es) ::1 Addresses beginning with FC00: Addresses beginning with FE80: Addresses beginning with FEC0: Addresses beginning with FF0x:, where x corresponds to a group scope ID Protocols and Standards DHCP, DNS, FTP, HTTP, HTTPS, IMAP, PING, POP3, NSLOOKUP, NTP, RTP, SFTP, SIP, SMTP, SNMP, Telnet, TFTP

Function Lookback Private Link-local unicast Site-local unicast Multicast

TCP/IP Model Application

5. Session 4. Transport

3. Network

2. Data Link 1. Physical

compression Establishes, maintains, and terminates user connections Ensures accurate delivery of data through flow control, segmentation and reassembly, error correction, and acknowledgment Establishes network connections; translates network addresses into their physical counterparts and determines routing Packages data in frames appropriate to network transmission method Manages signaling to and from physical network connections

Routers, Layer 3 Switches Firewalls Bridges, Switches Hubs, Repeate rs

TCP, UDP

Transport

ARP, ICMP, IGMP, IP, IPSec

Internet

L2TP, PPP, PPTP, SLIP

Network Interface

Includes NICs

802.3 (Ethernet) 802.11 (Wi-Fi) 802.16 (WiMAX)