Introduction to Data Communications » Exercise – 1
9. The _______ provides mobile subscriber network access over an air interface.
(a) core network plane
(b) TV access plane
(c) radio access plane
(d) end-user services plane
Subject Name : General Computer |
Exam Name : UPSC, SSC, IBPS, SBI, RBI, NET, KVS, NVS, PSU, RRB, FCI, NABARD, LIC |
Posts Name : College Lecturer, School Lecturer, Teacher, Office Assistant, Officer, Clerk |
General Computer Books |
Related Posts
Introduction to Computer » Exercise - 1 1 . Computer is a /an : (a) mechanical machine (b) electronic machine (c) All of these (d) None of these 2. Which of the following refers to the fastest : (a) Note books (b) Personal computer (c) Laptops (d) Super computer 3. Which language is directly understood by the computer without translation program ? (a) C language (b) Assembly language (c) High level language (d) Machine language 4. Who developed lntegrated chip ? (a) Robert Nayak (b) CV Raman (c) C Babbage (d) JS Kilby 5. First super computer of the world is : (a) CRAY-1 (b) PARAM (c) Tienhe-2 (d) IBM-370 6. First computer of India is : (a) PARAM (b) siddharth (c) IBM-370 (d) CRAY-1 7. A desktop computer is also known as a : (a) palm pilot (b) PC (c) laptop (d) mainframe 8. The chip, used in computers, is made of : (a) chromium (b) iron oxide (c) silica (d) silicon 9. A personal computer is designed to meet the computing needs of an : (a) individual (b) department (c) company (d) world 10. Benefits of computers are : (a) very fast and can store huge amount of data (b) provide accurate output either input is correct or not (c)…
Computer Science » Notes » Introduction to Data Communications Computer Network : Computer refers to information tool, and network describes how the computers exchange that information. Network is a set of devices (often referred as nodes) connected by communication links. It consists of two or more computers that are linked in order to share resources, exchange files, or allow electronic communications. Computer Network Classification : 1. By Physical Size : (1) LAN – local area network (2) MAN – metroplolitan area network (3) WAN - Wide Area Network 2. By Topology : (1) Bus topology (2) Star toplogy (3) Ring topology (4) Mesh topology Extended network topologies : (1) Tree Topology (2) Hybrid Topology 3. By Security : (1) Network based on workgroups. (2) Network based on servers 4. By Network Architecture : (1) Ethernet (2) Token Ring (3) Fiber Distributed Data Interface (FDDI) networks 5. By Network Protocol : (1) Internet Protocol (IP) (2) Internet Packet Exchange (IPX) (3) Systems Network Architecture (SNA) (4) AppleTalk Networks Application/Uses of Computer Network : 1. Sharing of Resources 2. Sharing of information 3. Person-to-person communication 4. E-business/ online business 5. Online Games/ Interactive entertainment Computer Network Advantages : 1. Speed 2. Cost-effective 3. Security 4. Software management…