Paperback: 912 pages
Publisher: Course Technology; 6 edition (June 14, 2012)
Product Dimensions: 1.5 x 7.5 x 9.2 inches
Shipping Weight: 3 pounds (View shipping rates and policies)
Average Customer Review: 3.9 out of 5 stars See all reviews (105 customer reviews)
Best Sellers Rank: #110,217 in Books (See Top 100 in Books) #56 in Books > Computers & Technology > Networking & Cloud Computing > Networks, Protocols & APIs > Networks #131 in Books > Textbooks > Computer Science > Networking #244 in Books > Engineering & Transportation > Engineering > Telecommunications & Sensors
This book, together with the testout website login information helps prepare students for the CompTIA A+ exam by going over, in detail the OSI Operating System Interconnection model 7 layers, common POST codes Power On Self Test, frequently used ports and other essential data, IEEE 802 and other basic knowledge. Most of this must simply be memorized.The first thing my instructor did was require that all students memorize the 7 layers of the OSI model which are layer 1 physical, layer 2 data, layer 3 networks, layer 4 transport, layer 5 session, layer 6 presentation and layer 7 application.We were then required to memorize many of the most commonly used ports:20 FTP data (File Transfer Protocol)21 FTP (File Transfer Protocol)22 SSH (Secure Shell)23 Telnet25 SMTP (Send Mail Transfer Protocol)43 whois53 DNS (Domain Name Service)68 DHCP (Dynamic Host Control Protocol)79 Finger80 HTTP (HyperText Transfer Protocol)110 POP3 (Post Office Protocol, version 3)115 SFTP (Secure File Transfer Protocol)119 NNTP (Network New Transfer Protocol)123 NTP (Network Time Protocol)137 NetBIOS-ns (name service)138 NetBIOS-dgm (datagram)139 NetBIOS (Network Basic Input/Output System)143 IMAP (Internet Message Access Protocol)161 SNMP (Simple Network Management Protocol)194 IRC (Internet Relay Chat)220 IMAP3 (Internet Message Access Protocol 3)389 LDAP (Lightweight Directory Access Protocol)443 SSL (Secure Socket Layer)445 SMB (NetBIOS over TCP)666 Doom993 SIMAP (Secure Internet Message Access Protocol)995 SPOP (Secure Post Office Protocol)We were then required to memorize some of the most common POST error codes.
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