Information Technology Complete Exam Questions And Answers.

LAN - correct answer Local Area Network WAN - correct answer Wide Area Network HTTP - correct answer Hyper Text Transfer Protocol HTML - correct answer Hyper Text Markup Language RAM - correct answer Random Access Memory CPU - correct answer Central Processing Unit DRAM - correct answer Dynamic Random Access Memory DSL - correct answer Digital Subscriber Line ECC - correct answer Error Correction Code FTP - correct answer File Transfer Protocol HTTPS - correct answer Hyper Text Transfer Protocol Secure It - correct answer Information Technology Kbps - correct answer Kilobits Per Second NIC - correct answer Network Interface Card OSD - correct answer On Screen Display POP3 - correct answer Post Office Protocol RTF - correct answer Rich Text Format SMS - correct answer Short Message Service USB - correct answer Universal Serial Bus VoIP - correct answer Voice Over Internet Protocol VPN - correct answer Virtual Private Network W3C - correct answer World Wide Web Consortium WI-FI - correct answer Wireless Fidelity WWW - correct answer World Wide Web XHTML - correct answer Extensible Hypertext Markup Language The shape of a local-area network (LAN) or other communications system. - correct answer Topology The third layer of OSI - correct answer Network Layer Every node has a circuit connecting it to every other node in a network. Is very expensive to implement but yields the greatest amount of redundancy. - correct answer Full Mesh Topology The sixth layer of OSI - correct answer Presentation Layer It refers to layout of a network. How different nodes in a network are connected to each other and how they communicate is determined by the network's topology. - correct answer Network Topology The physical layout of devices on a network. Every LAN has a topology, or the way that the devices on a network are arranged and how they communicate with each other. - correct answer Physical Topology A networking framework to implement protocols in seven layers - correct answer Open System Interconnection (OSI) The first layer of OSI model. - correct answer Physical Layer The seventh layer of OSI model. - correct answer Application Layer Fifth layer of OSI - correct answer Session Layer Forth layer of OSI - correct answer Transport Layer Second layer of OSI - correct answer Data Link Layer Some nodes are organized in a full mesh scheme but others are only connected to one or two in the network. - correct answer Partial Mesh Topology A group of two or more computer systems linked together. There are many types of computer networks, including the following: - correct answer Network A topology where devices are connected to a central computer, called a hub. Most used at home - correct answer Star Topology A topology where a central cable -- the main wire -- that connects all devices on a local-area network (LAN). - correct answer Bus Topology A local-area network (LAN) whose topology is a ring. - correct answer Ring Topology