chapter 6 addressing the network ipv4 study guide

... segment to the network backbone. A special crimping tool is used to put the connector on the end of the wire. The actual wire runs down the middle and must make contact with the end of the connector ... found in the home system, the network RJ-45 contains eight contacts. There are eight pins in the connector; hence eight wires in the cable are connected to it. Ethernet can use four of the wires ... and other elements of a network we’ve discussed in this chapter are either traditional components of a network, or have grown to become standard, there are other technologies that are either

Ngày tải lên: 04/07/2014, 13:21

... and other network devices of your network together and used to carry the data that is transmitted between them Coaxial cable, also referred to as ■ the center of the cable to carry signals The ... quESTIoNSNone of the workstations on the network are able to communicate Q: with each other They use a thin wire coax Ethernet to connect to each other What may be causing the issue? The backbone ... taps into the thick cable and allows the workstation to connect to the network using an AUI cable When a MAU and AUI cable are used on a 10Base5 network, the onboard trans-ceiver of the network

Ngày tải lên: 04/07/2014, 13:21

... picture how the spokes go to the hub of the wheel Each spoke is a connection and the hub of the wheel is the hub of the network where all the cables come together Because all of the connections ... through the layers step by step to the physical layer The information then passes along the cable to the receiving computer, which starts the information at the physical layer From there it ... concentrate in the center, the hub is also called a concentrator. Each of the cables that extends to the hub from computers and other network devices is plugged into its own port on the hub The port

Ngày tải lên: 04/07/2014, 13:21

... profile to set up the data link The ISDN device will not send the SPID again unless the device is disconnected from the network The directory number is the 10-digit phone number the telephone com-pany ... ISDN network It connects through the R interface to the TE2 device and through the S inter-face to the ISDN network The peripheral required for personal computers often includes an NT1 device These ... assigns two of these when the connection is first set up: the service pro-file identifier (SPID) and the directory number (DN) These are the most common numbers used because the other three are

Ngày tải lên: 04/07/2014, 13:21

... begin the physical installation of the NIC, or network adapter, be sure to address the following issues: Ensure that the adapter is compatible with the data bus, the protocol, ■ ■ the media, and the ... to the 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 The network ... protocols to control the functions of the adapter The NICs that exist in the various workstations on a network commu-nicate with each other using their own unique addresses The MAC address, or

Ngày tải lên: 04/07/2014, 13:21

... security to the next level by further isolating the internal network from the public network An addi-tional screening router is placed between the internal network and the fire-wall proxy server The ... server The proxy server will then transmit the request on the Internet and receive the results The results will then be sent to the original requester A nice feature of the proxy server is that the ... that network segment This allows the same firewall to manage the traffic between the Internet, the DMZ, and the protected network Using one firewall instead of two lowers the costs of the hardware

Ngày tải lên: 04/07/2014, 13:21

... wants you to connect the two networks together. Your com- pany’s existing network is twice the size of the new network. To get these two networks connected together, which of the following will ... router), which sends the data to its destination. The time spent sending the data from the switch to the router and then the time spent by the router taking the packet off the wire to read it ... packets across the network. Once the device has authenticated itself, communication over the port is allowed, so that it can then transfer data across the switch and over the network. Summary

Ngày tải lên: 04/07/2014, 13:21

... Trang 1ChApTEr 4: Switching 166 C Install a bridge to break the larger LAN into two smaller ones, and then connect these to the other LAN using a switch D Install a switch to break the larger ... it reaches the hub, which of the following will occur? A The message is broadcast to all of the computers on the network B The message is sent out on all of the ports Beta will ignore the message ... access to these services over the wire-less network, the technicians can move from one call ticket to another without being forced to reconnect to the wire line network as they move about Another

Ngày tải lên: 04/07/2014, 13:21

... (OSI) networking model defines the framework for implementing network protocols The OSI model is cov-ered in depth in Chapter 6 Wireless networks operate at the physical and data link layers of the ... of the dif-ferences in the media (air as opposed to wires), the devices being used, the potential mobility of users connected to the network, and the possible wire-less network topologies, the ... time (100 to 200 µs) In general, the longer the dwell time, the greater the throughput and the more susceptible the transmission is to narrowband interference The frequency hopping sequence creates

Ngày tải lên: 04/07/2014, 13:21

... enabled in a closed network, the settings on the client for the SSID and the encryption keys must match the AP when attempting to associate with the network or it will fail The next few paragraphs ... structure for the network An infrastructure consists of one or more APs as well as a distribution system (that is, a wired network) behind the APs that tie the wireless network to the wired network ... warning The following information must be mastered for the Network exam; you need to know the 802.11 standards, the speeds, operation, and so on for the Network exam Make sure that you follow the

Ngày tải lên: 04/07/2014, 13:21

... assigned to networks by ISPs and within networks by administrators Determine the network portion of the host address and explain the role of the subnet mask in dividing networks Given IPv4 addressing ... each network, create a network scheme that assigns addressing ranges to each network Refer to 6. 5 .6. 1 H c vi n m ng Bách khoa - Website: www.bkacad.com 41 Testing the Network Layer • Describe the ... Classify and Define IPv4 Addresses • Link-Local Addresses • – IPv4 addresses in the address block 169 .254.0.0 to 169 .254.255.255 ( 169 .254.0.0 / 16) are designated as link-local addresses These addresses...

Ngày tải lên: 22/12/2013, 13:17

... Public Wireless Networks Limited and Tracked Access 260 261 262 263 264 265 266 266 266 268 269 270 270 271 272 274 275 275 275 2 76 277 277 277 278 280 280 281 281 282 282 282 CWNA Study Guide © Copyright ... Service Set 168 168 168 169 169 169 169 169 169 171 171 172 172 172 173 173 173 174 174 175 1 76 1 76 177 181 181 182 182 183 184 185 185 1 86 187 189 190 190 191 191 192 CWNA Study Guide © Copyright ... Review Questions Answers to Review Questions Chapter 46 46 47 48 48 49 49 49 50 50 51 51 51 52 53 53 54 55 55 55 56 58 58 58 58 59 59 60 60 61 61 62 63 68 Wireless LAN Infrastructure Devices 71...

Ngày tải lên: 17/02/2014, 15:20

... information The network is internetworked with a network belonging to a subsidiary of the company The subsidiary’s network uses Apple computers, and uses AppleTalk as a network protocol To access the ... computer that has the ability to dial into the Internet, but isn’t connected to the other offices Office B is in Â� another part of the country from the other offices, but doesn’t have its network interconnected ... Standards Connectors Other Media 46 49 58 63 63 67 69 75 85 Introduction In this chapter, we’ll take a look at what you will need to know about cable connections and termination for the Network exam...

Ngày tải lên: 04/07/2014, 13:20

... 192. 168 .99.127 B 192. 168 .99 .63 C 192. 168 .99.23 D 192. 168 .99.31 14 What is the valid host range that the host ID 192. 168 .10.33 255.255.255.224 is a part of? A 192. 168 .10.32 63 B 192. 168 .10.33 63 ... through 10 .62 See Chapter for more IP addressing information 15 C The switch will flood the network with the frame looking for the device For more information on LAN switching, see Chapter 16 B The ... Start by using 2 56, the subnet mask, which is 2 56 224=32 The first subnet is 10.32 The next subnet would be 10 .64 This host is in the 10.32 subnet, the broadcast address is 10 .63 , and the valid host...

Ngày tải lên: 26/10/2013, 23:15

... session Figure 6. 2: Logging out of GNOME Figure 6. 3: The log out dialog box 6. 5.3 Parts of the Display Figure 6. 4 shows the parts of the GNOME display, which are described in the following sections ... access the file manager: double clicking the icon with the left mouse button launches the file manager, which displays the contents of the user's home directory 6. 5.3.2 Desktop The desktop is the ... briefly explains the operation of the file manager 6. 5.4 Using the File Manager Like the Microsoft Windows Explorer, the file manager window has two main panes As shown in Figure 6. 6, the left file...

Ngày tải lên: 07/11/2013, 10:15

... Parkway, Alameda, CA 94501 xv 263 264 265 265 266 267 267 267 268 269 270 272 273 273 275 277 279 281 282 282 283 285 2 86 287 288 289 289 290 290 291 292 293 294 295 2 96 2 96 297 299 299 300 301 305 ... The Session Layer The Transport Layer The Network Layer The Data Link Layer The Physical Layer Ethernet Networking Half- and Full-Duplex Ethernet Ethernet at the Data Link Layer Ethernet at the ... the subnet on which the IP address 192. 168 . 168 .188 255.255.255.192 resides? A 192. 168 . 168 .129–190 B 192. 168 . 168 .129–191 C 192. 168 . 168 .128–190 D 192. 168 . 168 .128–192 What does the passive command...

Ngày tải lên: 17/01/2014, 08:20

... he identifies the crime, along with the computer and other tools used to commit the crime.Then he gathers evidence and builds a suitable chain of custody .The investigator must follow these procedures ... issue on single workstations The future appears to be the use of the SHA-2 56 algorithm and other 2 56 bit hashes For now, the National Software Reference Library Hashes use the SHA-1 and MD5 algorithms ... collecting all the information, the investigator can then list the steps that can be taken during the investigation and then begin Caution, it is not necessary to seize the entire system Identify the relevant...

Ngày tải lên: 25/03/2014, 12:12

... computer networking protocol suite The terms are often used interchangeably Strictly speaking, the suite is the definition of the protocols, and the stack is the software implementation of them 24 Network ... Devices and their Role on the Network Intermediary devices to provide connectivity and to work behind the scenes to ensure that data flows across the network These devices connect the individual ... Providers) Often also TSPs Connect their customers to the Internet The Internet – ISPs connected to other ISPs 20 The Internet – A Network of Networks •Although there are benefits to using a LAN...

Ngày tải lên: 01/04/2014, 12:20

... assigned to networks by ISPs and within networks by administrators  Determine the network portion of the host address and explain the role of the subnet mask in dividing networks  Given IPv4 addressing ... describe the motivation for migrating from IPv4 to IPv6 © 2007 Cisco Systems, Inc All rights reserved Cisco Public 20 Determine the network portion of the host address and the role of the subnet ... Public 30 Testing the Network Layer  Describe the general purpose of the ping command, trace the steps of its operation in a network, and use the ping command to determine if the IP protocol is...

Ngày tải lên: 20/06/2014, 12:20

... 260 – 261 , 64 0 64 9 CSMA/CD, 64 8 listing of, 64 2 64 7 LLC, 64 7 OSI and, 64 1 64 2 Token Ring, 64 9 wireless network, 64 9 Index 802.1x standard, authentication, 458– 461 dynamic key derivation, 199, 461 ... operating with packet switching, 359– 360 , 363 PRI, 362 – 363 protocols and properties, 360 – 368 FDDI, 364 – 365 ISDN, 361 – 363 T/E carrier, 360 – 361 wireless, 372–373 X.25, 366 – 367 WIFI protected access (WPA2), ... 491, 64 0 FHSS See Frequency hopping spread spectrum Fiber cabling, 64 Fiber connectors, 79–81 Fiber distributed data interface (FDDI), 364 – 365 frame relay, 365 – 366 MPLS, 366 SONET, 367 – 368 X.25 network, ...

Ngày tải lên: 04/07/2014, 13:20