comptia a study guide pdf 2013

... responses) Amy had also noticed that she had started biting her nailsagain and was going through nearly a packet of cigarettes aday, which was much more than she normally smoked (behavioural responses). ... behaviour and personality traits Research has indicated that people who display Type A behaviour and teristics are more prone to stress and may have an increased risk of suffering from charac-coronary ... and giving an adequate presentation and attempting toanswer questions Amy also had a number of physiological responses, such as palpitations, culties sleeping and biting her nails The best ways

Ngày tải lên: 05/03/2014, 11:21

... increase the awareness of stroke as atreatable emergency, organizations such as the American Stroke Associa-tion (a division of the American Heart Association) and the NationalStroke Association ... general information rather than a guide to specificcare Several broad classes of treatment are currently available and will be discussed as categories antiplatelet medications Platelets are small ... products are claimed as trademarks Where those designations appear in this book and Harvard University Press was aware of a trademark claim, then the designations have been printed in initial capital

Ngày tải lên: 16/03/2014, 12:20

... English-speaking peers are available on a regular basis; • mistakes are accepted as a part of learning; • the purpose of various oral communication, reading, and writing tasks is clear to thelearner; ... skim and scan for key information in reading materials with familiar vocabulary and context – summarize a story, identifying the main idea and some details – read and interpret text at a grade-appropriate ... to adapt to a variety of teaching strategies used in a Canadian classroom – begin to respond to social situations appropriately – begin to work with a partner on a common academic task – call

Ngày tải lên: 19/03/2014, 08:20

... Begin a new paragraph with Rearranging or Combining Paragraphs (1) When I first brought my cat home from the Humane Society she was a mangy, sickly, and pitiful animal Apparently she was declawed ... necessary Answer: (1) Paragraphs (1) and (2) can be combined because they share the same main idea Trang 11(a) Insert a comma after education (b) Change combined to combine (c) Change has resulted ... Inadequate development and examples/details y Lack of an organized approach y Poor use of word choice and grammar y Change of focus y Inability to clearly communicate ideas Note: See Paragraph

Ngày tải lên: 24/03/2014, 19:20

... known as the Extended Graphics Array (XGA) This technology was available only as a Micro Channel Architecture (MCA) expansion board and not as an ISA or EISA board (It was rather like IBM saying, ... Purposes and Characteristics of Adapter Cards An adapter card (also known as an expansion card) is simply a circuit board you install into a computer to increase the capabilities of that computer Adapter ... produce what appears to our eyes as a continuous image. Later Video Standards Any standard other than the ones already mentioned are probably extensions of SVGA or XGA It is becoming easier and easier

Ngày tải lên: 10/08/2014, 12:21

... can do to counter the threat Fortunately, these attacks require fairly sophisticated software and are harder to engineer than a DoS attack, such as a TCP SYN attack UDP Attacks A UDP attack attacks ... system and session com-A man-in-the-middle attack is an active attack Something is actively cepting the data and may or may not be altering it If it’s altering the data, the altered data masquerades ... have stan-a price thstan-at stan-anyone in the mstan-arket would pstan-ay, but cstan-an the sstan-ame be sstan-aid for the other stan-trators in your company? adminis-Social engineering can have

Ngày tải lên: 14/08/2014, 20:20

... sharply away from current value and then to move back to it. The reason: the event doesn't usually have a fundamental impact on value right away The event is obvious So market participants react ... result in a sharp move I want to emphasize again, however, that the dynamics in each case are different. After a surprise, price generally moves back to value in the near-term because there hasn't ... Trang 1C B 0 T®MARKET PART III 0 ChicagoBoardofTrade InternetAddresshttp://www.cbot.corn Trang 2Care has been taken in the preparation of this material, but there is no warranty or representation

Ngày tải lên: 02/07/2014, 06:20

... the areas of pro-gramming, hardware, database administration, graphic design, and network administration In 2007, he was awarded a police commendation for his work on developing a system to track ... of California Los Angeles (UCLA), Stanford Research Institute, University of California Santa Barbara, and University of Utah), it allowed researchers and government to exchange information and ... distribute data, share employee information, access shared data-bases, online programs, and other components that are needed or wanted by an organization The major difference between an intranet and the

Ngày tải lên: 04/07/2014, 13:20

... troubleshoot hardware loopback Adapter A hardware loopback adapter is a way to test the ports on a system without having to connect to an external device For example, you can use a serial loopback adapter ... suffers attenu-ation, you should also check cable distances If the maximum distance for cabling has been reached, then you may need to install a device that will regenerate the data and pass it along ... problem is Cable testers are tools that can analyze the capability of a cable to carry signals and can find breaks or other problems in the wire In addition to cable testers, there are also other

Ngày tải lên: 04/07/2014, 13:20

... that loops will result and flood the network vlAN A VLAN is a virtual LAN that allows messages to be broadcast to all of the network devices that are in the same broadcast domain A broadcast ... to transmit data between machines Content switches will also take advantage of caching and load balancing so that the amount of data trans-mitted across networks and requests processed by a server ... and load balancing so ■ ■ that the amount of data transmitted across networks and requests processed by a server are reduced Advanced Features of a Switch A VLAN allows messages to be broadcast

Ngày tải lên: 04/07/2014, 13:21

... that use the same frequency within a  small space can easily cause network disruptions and even denial of service (DoS) for valid network users. If an attacker hijacks the AP and does not pass ... and purchase new hardware, check to see if you can update the firmware of your AP. The AP vendor may have released a more recent firmware version that supports the disabling of SSID broad- casts. ... contains a high percentage of well-known and predictable information, making it vulnerable to plaintext attacks. How can I prevent unauthorized users from authenticating and as-Q: sociating

Ngày tải lên: 04/07/2014, 13:21

... think that with that much IP address space available to them, network engineers, manag-ers, administrators, and technicians would have a lackadaisical attitude when assigning IP space Quite ... private addressing is called automatic private IP address-ing (APIPA) If a computer (Windows 98 or later) is configured to obtain its address automatically from a DHCP server and it cannot locate ... network, you may have to schedule an out-age to change things over An IP addressing change on a local area network (LAN)-sized or larger scale is always a lot of work and is somewhat time-consuming

Ngày tải lên: 04/07/2014, 13:21

... Group Management Protocol (IGMP) IGMP allows computers on a network such as the Internet to participate in IP multicasting A multicast address allows an application to send a message to a large ... really detail-minded (or paranoid), you could even ask that he call you back when it gets there, and let you know that all the pages are there in sequence and it wasn’t damaged along the way ... header Two additional TCP/IP protocols that operate at the network layer are the ARP and the Reverse Address Resolution Protocol (RARP) ARP’s job is to translate logical IP addresses to physical

Ngày tải lên: 04/07/2014, 13:21

... pairs of end-points What is a gateway, and why would I need one? Q: The word A: gateway has many different meanings in the Information Technology (IT) world A protocol-translating gateway translates ... link layer The data link layer is responsible for taking the information it gets ■ ■ from the physical layer and organizing it into frames The devices that operate at the data link layer are switches ... Windows operating system and has to be purchased and installed separately. Exam day Tip Because it usually sends usernames and passwords in clear-text the use of Telnet has been almost entirely

Ngày tải lên: 04/07/2014, 13:21

... 802.10a SILS Part A: The Model 802.10b SILS Part B: Secure Data Exchange Standard on protocol for secure data exchange at Data Link Layer 802.10c SILS Part C: Key Management Standard on the management ... unless for some reason the cells operate on the same frequency and have no overlap of coverage area. Exam warning IEEE standards are an important part of networking, and chances are that you’ll see ... Technical Advisory Group LAN Standard for fiber optic technology 802.9 Integrated Services (IS) LAN Interface at the MAC and Physical Layer Standard for voice and data over twisted-pair media 802.9a

Ngày tải lên: 04/07/2014, 13:21

... and install cable that supports a longer distance B Install a passive hub to increase the distance that data can travel along the cable Trang 2C Install a NIC to increase the distance that data ... data can travel along the cable D Install a switch to increase the distance that data can travel along the cable Correct answer and explanation: D Install a switch to increase the dis-tance that ... switches are designed to always ignore broadcast messages Correct answer and explanation: B The message will be sent to all com-puters in the same broadcast domain A broadcast domain is a logical

Ngày tải lên: 04/07/2014, 13:21

... processor, 9 A AAA See Access control, authentication, and auditing Access, 3 Access control, authentication, and auditing (AAA), 431–432 Access control lists (ACLs), 132, 385 Access controls, ... Network ArpWatch, 214 Asymmetric digital subscriber line (ADSL), 369 Attachment unit interface (AUI), 72 Attack signature database, 389 Attenuation, 52, 89 Auditing, 433–434 AUI See Attachment ... modems, 108–109 Analog signaling vs digital signaling, 240–242 API See Application program interface APIPA See Automatic private IP addressing Apple II computer, 11 Application layer, troubleshooting,

Ngày tải lên: 04/07/2014, 13:21

... reviewed or approved the accuracy of the contents of this training material and specifically disclaims any warranties of merchantability or fitness for a particular purpose CompTIA makes no guarantee ... work and specifically disclaim all warranties, including without limitation warranties of fitness for a particular purpose No warranty may be created or extended by sales or promotional materials ... any such “Authorized” or other training material in order to prepare for any CompTIA certification exam The contents of this training material were created for the CompTIA A+ exams covering CompTIA

Ngày tải lên: 10/08/2014, 12:20

... electrical charge? A: Capacitor 419. A parity error usually means a problem with? A: Memory (RAM) 21 A: Perform a full backup 254. What is the cheapest way to access the Internet? A: Dial Up access 255. ... of RAM and what? A: A swap file 445. Memory that is paged out to the hard drive is known as what? A: virtual memory Congratulations!! You have purchased one of the Troy Technologies USA Study ... AUTOEXEC.BAT? A: DOSKEY 40. Which allows faster access; RAM, ROM, or virtual memory? A: RAM 41. What batch file command will stop a batch file operation until a key is pressed? A: PAUSE 42. What...

Ngày tải lên: 11/12/2013, 14:15