CompTIA Network+ Certification Study Guide part 21 pps

CompTIA Network+ Certification Study Guide part 21 pps

CompTIA Network+ Certification Study Guide part 21 pps

... Wireless traffic, like its wired counterpart, consists of frames transmitted from one station to another. The primary feature that sets wireless networks apart from wired networks is that at least ... it and which is meant for other wire- less networks. 802.11 traffic can be subdivided into three parts: Control frames Management frames Data frames Control frames include such informat...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 282
  • 0
CompTIA Network+ Certification Study Guide part 1 pps

CompTIA Network+ Certification Study Guide part 1 pps

... Data CompTIA Network+ certification study guide / Robert J. Shimonski [et al.]. — 2nd ed. p. cm. Includes index. ISBN 978-1-59749-429-8 (pbk. : alk. paper) 1. Computer networks—Examinations Study ... Syngress Publishing, Inc. Elsevier, Inc. 30 Corporate Drive Burlington, MA 01803 CompTIA Network+ Certification Study Guide Copyright © 2009 by Elsevier, Inc. All rights rese...
Ngày tải lên : 04/07/2014, 13:20
  • 10
  • 384
  • 0
CompTIA Network+ Certification Study Guide part 11 ppsx

CompTIA Network+ Certification Study Guide part 11 ppsx

... that transmits and receives electrical signals across the transmission media. They are also the part of the interface that actually connects to the media. Transceiver types can be classified as ... small company to cable its network. 8. The company has offices in two buildings that are 300 m apart. Both of the offices have about 15 computers and the numbers are expected to grow in near
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 325
  • 0
CompTIA Network+ Certification Study Guide part 12 pps

CompTIA Network+ Certification Study Guide part 12 pps

... this chapter). Although this term may be used in the real world to refer to a switch, for the Network+ exam it’s best to keep the components separate in your mind. A switch is a switch, and ... be repeated strong and loud, allowing your friend to hear it. A repeater works Test Day Tip The Network+ exam includes questions that deal with active hubs. Passive hubs aren’t covered on the...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 566
  • 1
CompTIA Network+ Certification Study Guide part 24 ppsx

CompTIA Network+ Certification Study Guide part 24 ppsx

... solutions. Some of these mechanisms are internal to Windows itself, while others are third-party solutions or part of the IEEE 802.11 standard. In this sec- tion, we will be focusing primarily on ... Professional computer is outlined in Exercise 5.1. Summary of Exam Objectives 221 SITE SURVEYS A site survey is part of an audit done on wireless networks. Site surveys allow system and...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 336
  • 0
CompTIA Network+ Certification Study Guide part 27 ppsx

CompTIA Network+ Certification Study Guide part 27 ppsx

... users who wanted to connect to a network had to obtain the TCP/IP protocol suite from a third party and install it. TCP/IP did not come bundled with the software. At times, the TCP/IP software ... routable because they include address- ing schemes that identify both the network or subnet and the particular client on that network or subnet. Other network/transport protocols, such as NetB...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 256
  • 0
CompTIA Network+ Certification Study Guide part 28 ppsx

CompTIA Network+ Certification Study Guide part 28 ppsx

... holds true today that you should know about these technologies for the exam, so do not overlook studying for them. CHAPTER 6: The OSI Model and Networking Protocols 258 in terms of the limitations ... interface was written, that main- frame still could communicate only with its specified counterpart. If either mainframe’s operating system changed, the interface might be broken and progra...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 290
  • 0
CompTIA Network+ Certification Study Guide part 37 ppsx

CompTIA Network+ Certification Study Guide part 37 ppsx

... whereas with NAT, each internal host must translate to a unique external IP address. PAT can be particularly useful for locations or users connected via cable modem, digital subscriber line (DSL), ... manage a network whether LAN or WAN. TCP/IP is a suite of protocols originally developed by the Department of Defense in a project called the Advanced Research Projects Agency (DARPA). The...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 469
  • 0
CompTIA Network+ Certification Study Guide part 42 pps

CompTIA Network+ Certification Study Guide part 42 pps

... device. A port is described as well known for a particular service when it is normal and common to find that particular software running at that particular port number. For example, Web servers ... (modifiable) Back Orifice 2000 8787, 54320, and 54 321 (modifiable) OpwinTrojan 10000 and 10005 SubSeven 1243, 1999, 2773, 2774, 6667, 6711, 6712, 6713, 6776, 7000, 7215 , 16959, 27374, 27573, an...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 320
  • 0
CompTIA Network+ Certification Study Guide part 44 ppsx

CompTIA Network+ Certification Study Guide part 44 ppsx

... targeting attacks and attack methodologies. This is perhaps the reason that CompTIA has been focusing many questions in this particular area. Although there are many different varieties and methods ... microsoft-ds Interesting ports on PLUTO (192.168.1 .21) : (The 1,596 ports scanned but not shown below are in state: filtered) Port State Service 21/ tcp open ftp 80/tcp open http 139/tcp o...
Ngày tải lên : 04/07/2014, 13:21
  • 10
  • 319
  • 0

Xem thêm

Từ khóa: