PC Hardware Computer repair companies specialize in troubleshooting‚ servicing and repairing a wide variety of hardware and software-related personal computerissues and computer network problems. Issues that typically require computer repair include failed hardware components‚ software bugs‚ driver incompatibilities‚ spyware and malware problems‚ network connectivity problems‚ operating system upgrades‚ and complete computer overhauls. When faced with the need for computer repair‚ options include
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Axia College Material Appendix J I/O and Multimedia Devices As a computer technician‚ you must be familiar with a wide range of input/output (I/O) devices‚ including keyboards‚ mice‚ monitors‚ biometric devices‚ projectors‚ cameras‚ and video cards. Before you attach any of these to a computer system‚ you must first research which I/O devices and expansion cards are best suited for your computer’s configuration; for example‚ it is common to find more than one video card in high-end PCs‚
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Lenovo Z70 17.3-Inch Laptop (Core i7‚ 8 GB RAM‚ 1TB Hard Drive) 80FG0038US The Lenovo Z70 17.3 inches laptop with NVIDIA graphics card for better picture quality. The Lenovo Z70 Laptop Review comes with brilliant display‚ powerful cutting edge Intel processor and JBL designed speakers with superior sound quality that provided by Dolby audio. The Lenovo Z70 is ideal for gaming and entertainment. The Lenovo Z70 has best quality massive 17.3 inches Full HD 1920*1080 resolution display.The Full HD display
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Collisions should always occur on full-duplex Ethernet links. | | | Bit error rate of 1 in 1010 | | | Data received at the destination must be the same as the data sent by the source. | | | No more than one bad frame per 105 bytes of data. | ____________________ depicts routers‚ logical links between routers‚ and high-level routing protocol configuration information. Answer | | The Layer 2 STP domain | | | A data link layer device map | | | The Layer 3 topology of an internetwork
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Fitzgerald‚ J. (2009)‚ p.31. Business data communication and networking. Wiley] Also LAN are usually connected by Ethernet cables‚have high speed connections and relatively inexpensive while MAN are often interconnected wirelessly using microwave radio links or fiber-optics and provide moderately fast transmission rates but can prove costly to install (very expensive). 14. Explain how a message is transmitted from one computer to another using layers? In a network of computers each computer connected
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carrier circuits. _____3. Which of the following would be a standard used at the Data Link layer of the Internet or OSI model? k) IP l) TCP m) Ethernet n) HTTP o) FTP _____4. In which layer of the Internet model would the HTTP standard be used? p) physical q) application r) transport s) network t) data link _____5. The network layer of the Internet model uses the _____________ protocol to route
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Which three areas of concern should be accounted for when building a wireless network? (Choose three.) mobility options extensive cabling coverage area* interference* packet collision security* 11 What is one main characteristic of the data link layer? It converts a stream of data bits into a predefined code. It shields the upper layer protocol from being aware of the physical medium to be used in the communication.* It accepts Layer 3 packets and decides the path by which to forward a
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Datu Zahir L. Meditar Mr. Anthony M. Caro Grade 7 – Sapphire Assignment in Computer Science 1 1. IMAP (Internet Message Access Protocol) -is an application layer that allows an e-mail client to access e-mail on a remote mail server. It supports both on-line & off-line modes of operation. The current version‚ IMAP version 4 revision 1 (IMAP4rev1)‚ is defined by RFC 3501. 2. POP (Post Office Protocol)
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of how it works with all 14. The function of a Routers in networking is to Move data between separate LAN’s‚ often by linking them to WAN lines in a network 15. What is "Encapsulation" A way to address data to cross over any type of network link 16. In TCP/IP networks‚ each devices needs neither an _________or an __________ to be able to transmit or recevie data. This is handled simply by the NIC Card IP address 17. The address 192.168.12.10 is an example of An IP Address 18.
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JUNE–2012 PAPER-II Note : This paper contains fifty (50) objective type questions‚ each question carrying two (2) marks. Attempt all the questions. 1. The postfixexpression AB + CD – * can be evaluated using a (a) stack (b) tree (c) queue (d) linked list 2. The post order traversal of a binary tree is DEBFCA. Find out the preorder traversal. (a) ABFCDE (b) ADBFEC (c) ABDECF (d) None of the above 3. The branch logic that provides making capabilities in the control unit
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