SSC Scientific Assistant IMD (Computer Science) Mock Exam & Study Materials

(i) General Intelligence & Reasoning: The Syllabus for General Intelligence would include questions of both verbal and non-verbal type. The test may include questions on analogies, similarities, differences, space visualization, problem solving, analysis, judgement, decision making, visual memory, discrimination, observation, relationship concepts, arithmetical reasoning, verbal and figure classification, arithmetical number series etc. The test will also 8 include questions designed to test the candidate‟s abilities to deal with abstract ideas and symbols and their relationships, arithmetical computations and other analytical functions.

(ii) Quantitative Aptitude:The questions will be designed to test the ability of appropriate use of numbers and number sense of the candidate. The scope of the test will be computation of whole numbers, decimals, fractions and relationships between numbers, Percentage, Ratio & Proportion, Square roots, Averages, interest, Profit and Loss, Discount, Partnership Business, Mixture and Alligation, Time and Distance, Time & Work, Basic algebraic identities of School Algebra & Elementary Surds, Graphs of Linear Equations, Triangle and its various Kinds of centers, Congruence and similarity of triangles, Circle and its chords, tangents, angles subtended by chords of a circle, common tangents to two or more circles, Triangle, Quadrilaterals, Regular Polygons, Circle, Right Prism, Right Circular Cone, Right Circular Cylinder, Sphere, Hemispheres, Rectangular Parallelepiped, Regular Right Pyramid with triangular or square base, Trigonometric ratio, Degree and Radian Measures, Standard Identities, Complementary angle, Heights and Distances, Histogram, Frequency polygon, Bar diagram & Pie chart.

(iii) English Language & Comprehension: English grammar, Vocabulary, Spellings, Synonyms and Antonyms, Comprehension, Correct and incorrect usages, etc.

(iv) General Awareness: General, physical, geographical, topographical, economic and climatic features of India. Current events. Matters of everyday observation and experience on scientific aspects and reasoning. Basic topics of mathematics, Chemistry and Physics. History of India, its cultural heritage, freedom movement, salient feature of the Constitution of India. Economic and social aspect of the country and its people.

Computer: History of Computer and their classification, Basic Organization, Memory – RAM, ROM, EPROM, etc, Magnetic-Floppy, Hard disks, CDROM, WORM etc, Concept of Virtual Memory and Cache Memory, Number systems, binary octal, Hexadecimal, Binary Addition, Subtraction and Multiplication, Flotation, point representation and arithmetic, Arithmetic through stacks. Operating systems: assemblers, elements of Assembly language programming- Overview of the Assembly process, assembler for the IBM PC, Process synchronization, Memory Management – address Binding – dynamic Loading and linking – overlays – logical and Physical address space – Contiguous Allocation - internal& External Fragmentation. Non-Contiguous Allocation: Paging and Segmentation Schemes – Implementation – Hardware Protection – Protection – sharing – Fragmentation. Virtual Memory: Demand Paging – Page Replacement – Page Replacement algorithms – Thrashing. File System: File Concepts – Assess Methods – Directory Structures – Protection Consistency Semantics – File system Structures – Allocation Methods – Free Space Management. I/O System: Overview – I/O hardware – Application I/O Interface – Kernel I/O subsystem, Performance, Secondary Storage Structures, Protection, Goals, Domain – Access matrix. 10 Assemblers: Elements of assembly language programming – Overview of the Assembly process – Design of a low-pass Assembler – a single pass Assembler for the IBM PC. The security Problem – Authentication – Threats – Threat Monitoring – Encryption. Fundamentals of programming: Unix Programming, Programming in FORTRAN, C, Object Oriented Programming in C++, programming in Java, Basics of compilers. Database Management Systems: Advantages and components of a Database Management Systems, Data Types, Data Dictionary, Query Basics, Forms and Reports, Graphical objects, Error Handing, Distributing Application, Data Storage Methods, Data Clustering and Partitioning, Database Administration, Backup and Recovery, Security and Privacy, Distributed Databases, Client/Server Databases, Object Oriented Databases, Integrated Applications, SQL, RDBMS. Internet Technology: Basics, topologies, layers, switching in the networks, bridges, routers and gateways, types of networks, WWW. Client/Server Applications, Internet Standards and specifications, ISP, Broad Band Technologies, Protocols, web-servers, browsers, and security, fire walls, date security, HTML, dHTML, XML, Web designing. Fundamentals of Geographical Information System (GIS): GIS Data and Spatial Models, Topology ad Spatial Operations, Projections, Scale and Coordinate Systems, Mapping, GIS Analysis, Cartography. Basics of GIS application development.