CompTIA Network+ Certification Study Guide part 6 ppt

... CONNECTORS OVERVIEW 46 MEDIA ISSUES 49 CABLE TESTERS AND TROUBLESHOOTING 58 SIMPLEX, HALF-DUPLEX, AND FULL-DUPLEX 63 CABLING 63 CABLE MANAGEMENT 67 LAN TECHNOLOGIES AND STANDARDS 69 CONNECTORS 75 OTHER ... thousands of dollars a month, and may be more than your organization needs. Before deciding on a particular con- nection for your network, try to determine what they will be using...

Ngày tải lên: 04/07/2014, 13:20

... 1983 that IBM releases the XT with the 80 86 processor (and option to add an 8087 math co-processor). 802 86 ( 16- bit processor) produced in 1982.  803 86 (32-bit processor) produced in 1985. CHAPTER ... produced in 1974. 80 86 processor (a 16- bit processor) produced in 1978. Because other  technology needs to catch up to the speed of the processor, an 8088 processor (an 8-/...

Ngày tải lên: 04/07/2014, 13:20

... pro- tocols to be used. Common protocols associated with VPN transmission security are PPTP, L2TP, SSH, and IPSec. PPTP and L2TP are used to establish a secure tunnel connection between two sites. ... traveling over.  Encapsulating Protocol The protocol, such as Point-to-Point Tun- neling Protocol (PPTP), Layer 2 Tunneling Protocol (L2TP), IPSec, or Secure Shell (SSH), that is wrapped ar...

Ngày tải lên: 04/07/2014, 13:20

... bits … the same length as an IP (Internet Protocol) address, which we will learn about in Chapter 6. The bandwidth capacity of a network cable is usually measured in the number of bits or bytes ... more expensive than UTP. DAMAGE AND DEFENSE… Physical Security Physical security is an important part of any network. In terms of cabling, you should try to keep as much cabling as possible...

Ngày tải lên: 04/07/2014, 13:20

... block such as a 66 block, or 110 block. 66 Block When you want to terminate your connections you will want to connect to a 66 block. When you want to terminate a connection on a 66 block, you need ... devices. You should know that the cutting blade and shape of the impact tool is different for 66 block connec- tions and 110 block connections. Make sure that you use the appropriate tool...

Ngày tải lên: 04/07/2014, 13:20

... networking, a number of devices either have taken over the roles of these devices or are a predominant part of a modern network envi- ronment. These devices are crucial to a network’s ability to handle ... correct computer on the network. For these computers to communicate, however, a device is needed to guide the TCP/IP network traffic to its destination. This is where routers come in...

Ngày tải lên: 04/07/2014, 13:21

... associated with VPN are Point-to-Point Tunnel- ing Protocol (PPTP), Layer 2 Tunneling Protocol (L2TP), SSH, and IP Secu- rity (IPSec). PPTP and L2TP are used to establish a secure tunnel connection ... security. First, by adding a link internally, you FIGURE 3.7 A Screened Host Firewall. FIGURE 3 .6 A Dual-Homed Host Firewall. Network Devices 133 examined by outsiders. In other words, all...

Ngày tải lên: 04/07/2014, 13:21

... large number of active attacks that a hacker can launch against a wireless network. For the most part, these attacks are identical to the kinds of active attacks that are encountered on wired ... attack. Creating a hijacked AP DoS requires additional tools that can be found on many security sites. Many apartments and older office buildings are not prewired for the high- tech networks in us...

Ngày tải lên: 04/07/2014, 13:21

... Secure Sockets Layer (SSL) encrypted Web traffic running on port 443. CHAPTER 6: The OSI Model and Networking Protocols 266 to in some documentation as the NetBIOS protocol). NetBT supplies the programming ... IMAP4 uses Port 143 (both TCP and UDP) for communication. CHAPTER 6: The OSI Model and Networking Protocols 274 forwarded to a particular set of DNS servers. These servers will query...

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... hexadecimal format: 7 060 :0000:0000: 0000:00 06: 060 0:100D:315B Leading 0s in each 16- bit value can be omitted, so this address can  be expressed as follows: 7 060 :0:0:0 :6: 600:100D:315B IPv6 addresses ... within IPv6 add- resses. This method takes regular IPv4 addresses and puts them in a special IPv6 format so that they are rec- ognized as being IPv4 addresses by certain IPv6 devi...

Ngày tải lên: 04/07/2014, 13:21