... assigned to networks by ISPs and within networks by administrators Determine thenetwork portion of the host address and explain the role of the subnet mask in dividing networks Given IPv4addressing ... 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 theNetwork 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...
... information Thenetwork 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 theNetwork exam...
... most of the critical network files for the Oracle Server See the section in Chapter 13 on starting and using the Net8 Assistant for further details 65 B The listener.ora file contains the configuration ... in the samples and compare the results shown in the book to those on your system Once you’re comfortable with the content in the chapter, answer the review questions related to that chapter (The ... chapter (The answers appear at the end of the chapter, after the review questions.) When typing in examples from the book, not type the line numbers that appear in the sample output; the Oracle...
... 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 thenetwork with the frame looking for the device For more information on LAN switching, see Chapter 16 B The ... unknown network? A Forwards the packet B Drops the packet C Holds the packet till the next route update D Sends a broadcast for the unknown network 38 Which part is thenetwork and which part is the...
... 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...
... 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...
... 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 theNetwork Intermediary devices to provide connectivity and to work behind the scenes to ensure that data flows across thenetwork 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...
... to the network, and the components needed to connect the � computers together (discussed later in this chapter) Access, which determines who can use thenetwork and how, and if features of the ... technologies that carry the data across thenetwork Protocols, which are sets of rules that control how the data is sent between computers The most popular of these is the protocol used on the Internet, ... later in this chapter) Network type, which defines the size of thenetwork and its scale within a geographical area (discussed later in this chapter) Network model, which determines the levels of...
... resolving domain names on the Internet Also during the mid-1980s, the backbone of the Internet was developed The backbone was a central network that connected other networks on the Internet Between ... list goes on The underlying theory for all is that the OS is abstracted from the hardware portion of the computer Now, with a platform between the resources and the OS managing them (VMware, ... into packets They are then sent over the network, and reassembled after reaching the destination computer TCP/IP, which specifies rules on how data is to be sent and received over the network, and...
... how thenetwork is configured Although networks are often unique to one another, the topology of each network will share characteristics with one another Networks will either use one of the topologies ... somehow they don’t exist physically They exist and they are very commonly used in the enterprise or corporate computing networks to segment networks In the past, to separate or segment networks, ... who is trying to discern the logical breakup of thenetwork VLANs logically divide thenetwork and affect the traffic and security of a switched network Configuring VLANs The first thing that might...
... on their Â� network, 33 34 Chapter 1: ╇ Network Fundamentals or another network connected to the Internet Because you’re Â� sending the e-mail to someone who uses a different ISP it sends the ... area network ■■ Wide area network ■■ Metropolitan area network ■■ Storage area network ■■ Personal area network ■■ Campus area network LAN and WAN LANs and WANs were the first types of networks ... addressed to, the computer it sends the packets on to the next computer in the ring In doing so, each computer acts as a repeater, resending the packet and thereby boosting the signal When the packet...
... thenetwork card or another device, it provides a � connection between the device and the physical media that carries data across your � network Media Issues As with anything dealing with networks, ... 10 Gbps 51 52 Chapter 2: ╇ Network Media Test Day Tip An easy way of remembering the maximum bandwidth of the various media standards is to look at the number at the front of the standard, ... opposed to broadband) The final portion of the media standard varies in meaning Originally, the number at the end indicated the maximum distance of the cable For example, the in 10Base5 indicates...
... attached at the ends of the cable 63 64 Chapter 2: ╇ Network Media During the installation there are several points that need to be Â� considered, including the pulling force used on the cable The ... Once the leads are aligned, you insert them into the connector and push the wires forward until the copper wires can be seen through the transparent end of the connector The connector and the ... by attaching the fox to the cable, jack, o or panel that you would like to trace, and you continue with the hound on the other end of the cable to find the fox’s tone When you find the tone, you...
... on thenetwork If it doesn’t have any data to send, then the next workstation on the bus then gets the token If it does send data, then the receiving machine resets the token and others can then ... a network could work together effectively, and how data is transferred 69 70 Chapter 2: ╇ Network Media over thenetwork cable These standards include Ethernet, Fast Ethernet, and Gigabit Ethernet ... Ethernet Ethernet Ethernet is the standard for most of the networks today As we discussed in the previous chapter, Bob Metcalfe originally developed Ethernet as a technology that networked together...
... segment to thenetwork 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 ... 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 ... phone into the wall jack They are also used to plug dial-up modems into the phone line so that computers can dial into the Internet or access networks remotely using the phone line They are primarily...