Answer question 19, 20, 21 showing fully all the steps. Solution should be perfect(very correct), clear, brief and explicit enough! Name", "NumberOfColumns" and"PrimaryKey" you are looking atA. User dataB. MetadataC. A report25. The network topology that supportsstrictly bi-directional links for eachpossible node isA. RindB. StarC. TreeD. MeshD. Indexes20. The characteristics of welldesigned system are: (a) Practical(b) Effective (c) Secure (d)Reliable (e) Flexible (f)Economical26. Match the followingD (i) Is the lowestlayer whosefunction is totactivaterandmaintalh thecircult betweenDTE and DCEP Performs routing1-ataA. a, b, c and dB. a, c, d, and eC. a, b, c, d and eD. a, b, c, d e and f21.existing procedures andinformation flow.linklayer.includes review of the2-hysicaA. Feasibility studyB. Feasibility reportC. System designD. System analysis22.Read Only Memory (ROM)Is volatileii.andI layer communicationP (i)Detection andTecovery fromagerrors in the3-resentationtransmitted data(iv)Provide for thesyntax of dataHayerIs programmableetwörkboardA. 1-(i), 2-(i), 3-(iv), 4-(ii)B. 1-(ii), 2-(i), 3-(iv), 4-(iii)C. 1-(iv), 2-(i), 3-(ii), 4-(iii)D. 1-(i), 2-(1), 3-(ii), 4-(iv)27. In a board sense, a rail way trackis an example ofA. SimplexB. DuplexC. Half-duplexD. Full-duplex28. In object oriented design ofsoftware, objects haveA. Attribute and name onlyB. Name and operation onlyC. Attribute, name and operationsD. Attribute and operations onlyEquivalent hexadecimal of(7657)s will beA. FAFB. FAFC. FFFD. FAAiv.loaderA. i and iiiB. i, ii and ivC. ii, iis and ivD. Tii and iv23. If every non-key attribute lisfunctionally dependent on theprimary key then the relation willbe inA. First normal formB. Second normal formC, Third nomal formD Fourth normal form24. Which of the following OSIreference model level is moreclosely related to the physicalcommunication facilities?A. ApplicationB. SessionC NetworkD. Data link29.

answer: 1) B) metadata metadata has columns of data labeled "TableName," "NumberOfColumns" and…

Name", "NumberOfColumns" and "PrimaryKey" you are looking at A. User data B. Metadata C. A report D. Indexes 20. The characteristics of well designed system are: (a) Practical (b) Effective (c) Secure (d) Reliable (e) Flexible (f) Economical A. a, b, c and d B. a, c, d, and e C. a, b, c, d and e D. a, b, c, d e and f 21. .includes review of the existing procedures and information flow. A. Feasibility study B.Feasibility report C. System design D. System analysis

Name", "NumberOfColumns" and "PrimaryKey" you are looking at A. User data B. Metadata C. A report D. Indexes 20. The characteristics of well designed system are: (a) Practical (b) Effective (c) Secure (d) Reliable (e) Flexible (f) Economical A. a, b, c and d B. a, c, d, and e C. a, b, c, d and e D. a, b, c, d e and f 21. .includes review of the existing procedures and information flow. A. Feasibility study B.Feasibility report C. System design D. System analysis

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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