Home / Computer Networks / Basics / Communication between a computer and a keyboard involves ______________ transmission.

Communication between a computer and a keyboard involves ______________ transmission.

A. Automatic
B. Half-duplex
C. Full-duplex

D. Simplex

Explanation: In simplex transmission, data flows in single direction which in this case refers to the data flowing from the keyboard to the computer. Another example would be of the mouse where the data flows from the mouse to the computer only.

Occurrence: System Administrator 2026, System Administrator 2026

Communication between a computer and a keyboard involves ______________ transmission. | Simplex | CSS, PMS, PPSC, FPSC, KPPSC, SPSC, ISSB and NTS Past Papers | Pakistan's Largest Online Past Papers Database

Leave a comment

MCQs Menu

Past Papers

(22-06-2025) ADD# 1515 20% GK Assistant Director (STAT) BS-17 (Evening) Held on 21-09-2025 (2025)18 7D2025 (2025)15 AD Attorney (2024)19 AD Research GK 40% (12-04-2025) (2025)36 AD STAT BS-17 (Morning) Held on 21-9-2025 (2025)20 ASI Service quota (13-04-2025) (2025)48 ASSISTANT EXECUTIVE ENGINEERS / SUB DIVISIONAL OFFICER / ASSISTANT DESIGN ENGINEER / ASSISTANT DESIGN OFFICER / ASSISTANT DIRECTOR FLOOD MONITORING / ASSISTANT DIRECTOR (BS-17) (2025)20 ASSISTANT REGISTRAR GK PAPER HELD on 28-9-2025 (2025)96 Account and Audit Officer (Morning ) (13-10-2024) (2024)19 Accountant / Auditor Held on 24.02.2025 (2025)21 Accounts Officer BS-17 (25-06-2024) (2024)20 Agriculture) Held on 13-07-2024 (2024)26 Archaeology & Tourism Department - 201999 Archaeology & Tourism Department - 20191 Assistant (13-07-2025) (2025)100 Assistant BOR96 Assistant Controller-Morning 23-11-2024 (2024)30 Assistant Director (Accounts) FDA Held on 14-07-2024 (2024)18 Assistant Director (C&W) Communication and works department Held on: 08-06-2024 (2024)18 Assistant Director (HR and ADMIN) BS-17 (2025)20 Assistant Director -Evening (23-11-2024) (2024)20 Assistant Director ASF (BS-17) Batch 01 (05-08-2024) (2024)98 Assistant Director Farms/Procurement (Punjab Seed Corporation26 Assistant Director Fisheries (BS-17) (1-06-2025) (2025)22 Assistant Director LDA (27-04-2025) (2025)98 Assistant Director TEPA BS-17 (13-07-2025) (2025)99 Assistant Director Wildlife BS-17 Held on 23.02.2025 (2025)19 Assistant Director legal (24-08-2024) (2024)20 Assistant Election Commissioner (BS-17) (2025)97 Assistant Held on 07.12.2025 (2025)57 Assistant PESSI Held on 19-10-2025 (2025)99 Assistant S&GAD (Evening) Held On 01-12-2024 (2024)98 Assistant S&GAD (Evening) Held On 24-11-2024 (2024)97 Assistant S&GAD (Morning) Held On 01-12-2024 (2024)98 Assistant S&GAD (Morning) Held On 24-11-2024 (2024)98 Assistant Sub Inspector BPS-11 (BATCH-1) 08-04-2025 (2025)49 Assistant Sub Inspector PHP (09-03-2025) (2025)22 Assistant Superintendent / Deputy Superintendent Jail (GK) (2025)94 Assistant) PPSC 25-08-2024 (2024)99 Bio Medical Engineer (Labour & Resource) Held on 10-08-2024) (2024)37 CURATOR (BS-17) DIRECTORATE GENERAL OF ARCHAEOLOGY22 Chief Officer/Municipal Officer (Regulations) Local Government & Community Develop1 Chief Officer/Municipal Officer (Regulations) Local Government & Community Development (Held on 11-08-2024) (2024)65 Clubbed (27-04-2025) (2025)96 Clubbed Case 74 – Assistant (BS-16) Various Departments – 2024 (2024)97 Clubbed Case-75 (Evening) Held on 13-07-2024 (2024)19 Clubbed Case-76 (Evening) Held on 08-06-2024 (2024)18 Clubbed Case-85 (Morning) Held on 08-06-2024 (2024)20 Clubbed Case-91(Morning) Punjab Special Education Department (10-08-2024) (2024)20 Clubbed Case-97 (Evening) Held on 13-07-2024 (2024)18 Clubbed Case-Various Post(Labour Inspector/Officer99 Clubbed ID 163 Assistant Held On 16.11.2025 (2025)93 Clubbed ID-96 (27-07-2024) (2024)20 Clubbes Case 98 – Various Posts -2024 (2024)98 Computer Instructor (BS-17) Punjab Special Education (Held on 14-07-2024) (2024)29 Concept Academy Notes7020 Data Entry Operator (BS-12) (31-05-2025) (2025)58 ENFORCEMENT OFFICER (16-03-2025) (2025)86 Educator (BS-16) Punjab Special Education Held on 13-07-2024 (2024)38 English: Combined competitive Examination 2023 Held in 2025 (2025)10 FIA - Assistant - FIA - 201898 FIA - Sub Inspector (Investigation) - FIA - 201886 G.k Portion( Sub Engineer Civil Bs-14) Dated 30-11-2024 (2024)17 G.k Portion(Horticulture Officer) Dated 30-11-2024 (2024)15 G.k Portion(Sub Engineer Mechanical Bs-14)Dated 30-11-2024 (2024)10 GK 2026158 General Knowledge P.M.S (Held On 15-12-2024) (2024)98 Hill Torrent Officer - Board of Revenue (BOR) Punjab - 202515 History PORTION (22-06-2025) (2025)22 INSTRUCTOR/LECTURER (MALE) ENGLISH (BS-17) (2024)39 Inspector (BS-16) Tourist Services (DTS)48 Inspector Cooperative (Cooperative Department) Held on 10-08-2024 (2024)96 Internal Audit Specialist (BS-16) 31-05-2025 (2025)11 Islamic Studies: Combined competitive Examination 2023 Held in 2025 (2025)20 Junior Clerk (BS-11) (1-06-2025) (2025)93 Junior Clerk (Evening) Held on 14.12.2025 (2025)89 Junior Clerk (Morning) Held on 14.12.2025 (2025)97 Junior Clerk BOR Held on 20.12.2025 (2025)86 Junior Clerk Paper BS-11 (28C2025) Held on 27-09-2025 (2025)100 Junior Computer Operator BS 11 (23-11-2024) (2024)21 Junior Computer Operator- Morning (30-11-2024) (2024)20 Junior Traffic Warden BS-11 (09-03-2025) (2025)60 Labour Officer Held On 16.11.2025 (2025)90 Lecturer Punjabi (BS-17) (Special Education Department) Held on 13-07-2024 (2024)19 Lecturer Urdu (Special Education Department) Held on 10-08-2024 (2024)18 MCQsCity - Tehsildar Naib Tehsildar15 Medical Officer (BS-17) Labour Department Held on 09-06-2024 (2024)19 Municipal Officer Gk (12-04-2025-0 (2025)17 Nutritionist-Morning (23-11-2024) (2024)20 PLANNING OFFICER (BS-17)15 PLANNING OFFICER (BS-17) GK 20% (28-06-2025) (2025)12 PLANNING OFFICER/ ASSISTANT DIRECTOR ( PLANNING) (BS-17) (2024)19 PMS Ministerial (13-04-2025) (2025)98 PMS Ministerial Qouta 2025321 PMS Ministerial Quota 202596 PPSC - ASSISTANT FOOD CONTROLLER (BS 15) 09J17J2022 - FOOD DEPARTMENT - 202381 PPSC - ACCOUNTS OFFICER (BS 16) - FINANCE DEPARTMENT - 201169 PPSC - ASI - Punjab Police (Service Quota) - 201987 PPSC - ASSISTANT (BPS 14) - PPSC - 201551 PPSC - ASSISTANT (BPS 16) - CLUBBED CASES - 20241 PPSC - ASSISTANT (BPS 16) - PLANNING & DEVELOPMENT DEPARTMENT - 201684 PPSC - ASSISTANT (BPS 16) - PPSC - 201672 PPSC - ASSISTANT AUDIT & ACCOUNTS (BPS 14) - PUNJAB FINANCE DEPARTMENT - 201146 PPSC - Accountant - Local Government & Community Development - 202094 PPSC - Assistant (BS 16) - (PESS) Labour & Human Resource Department - 20205 PPSC - Assistant (BS 16) - Board of Revenue - 20225 PPSC - Assistant (BS 16) - Chief Minister Office Overseas Pakistanis -60 PPSC - Assistant (BS 16) - Livestock & Dairy Development - 20203 PPSC - Assistant (BS 16) - PPSC - 000091 PPSC - Assistant (BS 16) - PPSC - 000172 PPSC - Assistant (BS 16) - Punjab Public Service Commission (PPSC) - 00001 PPSC - Assistant - Agricultural Department - 201846 PPSC - Assistant - Agriculture Department - 20208 PPSC - Assistant - Clubbed Cases Various Departments - 202487 PPSC - Assistant - Disaster Management Department (Board of Revenue) - 202292 PPSC - Assistant - Housing Urban Development & Public Health Engineering Department (Rawalpindi Region) - 202119 PPSC - Assistant - Labour and Human Resource - 201975 PPSC - Assistant - Lahore High Court (LHC) - 201996 PPSC - Assistant - Planning & Development Punjab - 2019100 PPSC - Assistant - Population Welfare Department - 201995 PPSC - Assistant - Provincial Disaster Management Authority (BOR) - 202129 PPSC - Assistant - Punjab Police Department - 202025 PPSC - Assistant - S&GAD Punjab - 000076 PPSC - Assistant - Services and General Administration Department (S&GAD) - 000017 PPSC - Assistant - Zakat & Usher Department - 202159 PPSC - Assistant BS 16 - (Clubbed Cases) - 202384 PPSC - Assistant BS 16 - (Clubbed Cases) - 20231 PPSC - Assistant Director (Accounts) / Lecturer Psychology 14 Jul 2024 - Higher Education Department & Others - 20249 PPSC - Assistant Director (Accounts) / Lecturer Psychology 14 Jul 2024 - Higher Education Department & Others - 20244 PPSC - Assistant Director (BS 17) - Local Government Punjab - 202099 PPSC - Assistant Director (BS 17) - Population Welfare Department - 202047 PPSC - Assistant Director - Labour & Human Resource Department Punjab - 201974 PPSC - Assistant Director - Local Govt & Community Development - 201898 PPSC - Assistant Director - Planning & Development Department (P&D) - 201998 PPSC - Assistant Director - Punjab Employees Social Security Institution (PESSI) - 201998 PPSC - Assistant Protocol Officer - Directorate General Protocol - 000094 PPSC - Assistant Sub Inspector (ASI) - Anti Corruption Department - 202095 PPSC - Assistants / Head Clerk (BS 16) - Local Government - 20205 PPSC - Caretaker (BS 14)- Lahore High Court - 2019182 PPSC - Caretaker- Lahore High Court (LHC) - 20197 PPSC - Chief Officer / Municipal Officer (BS 16) (Regulations) 11/08/2024 (Morning) - Local Government & Community Development Department - 202459 PPSC - Chief Officer / Municipal Officer (BS 16) (Regulations) 11/08/2024 (Morning) - Local Government & Community Development Department - 202410 PPSC - Corporal - Counter Terrorism Department Punjab (BS 11) - 202473 PPSC - DATA ENTRY OPERATOR (DEO) - PUNJAB POLICE DEPARTMENT - 201566 PPSC - DATA ENTRY OPERATORS (DEO) - PUNJAB POLICE DEPARTMENT - 20157 PPSC - Data Entry Operator (DEO) - Punjab Police - 20203 PPSC - Deputy Accountant (BPS 14) - Punjab Treasuries Establishment under the Finance Department - 201224 PPSC - Deputy Accountant (Evening) - Finance Department - 20191 PPSC - Deputy Accountant (Evening) - Finance Department - 201910 PPSC - Deputy Accountant (Morning) - Finance Department - 201974 PPSC - Deputy Accountant (Morning) - Finance Department - 201922 PPSC - Deputy Accountant - Finance Department - 201989 PPSC - Divisional Coach - Youth Affairs100 PPSC - EDUCATOR (BS 16) - PUNJAB SPECIAL EDUCATION DEPARTMENT - 201577 PPSC - ESE General (Afternoon) - Labour & Human Resource Department - 201991 PPSC - ESE General (Evening) - Labour & Human Resource Department - 201994 PPSC - ESE General (Evening) - Labour & Human Resource Department - 20193 PPSC - Educator (BS 16) - Education Department Punjab - 202438 PPSC - Elementary School Educator (ESE) General - Labour & Human Resource Department - 201993 PPSC - FOOD GRAIN SUPERVISOR (BS 09) - FOOD DEPARTMENT PUNJAB - 202391 PPSC - FOOD GRAIN SUPERVISOR (BS 09) Paper 2 - FOOD DEPARTMENT - 202359 PPSC - FOOD GRAINS INSPECTOR (BS 12) 18J26J2022 (30/04/2023) - FOOD DEPARTMENT - 202393 PPSC - FOOD GRAINS INSPECTOR (BS 12) 18J26J2022 (30/04/2023) - FOOD DEPARTMENT - 20231 PPSC - Field Assistant - Agriculture Department - 2018100 PPSC - Field Assistant Crop Reporter - Agriculture Department - 2018100 PPSC - HEALTH EDUCATOR (BS 17) - PUNJAB DEPARTMENT - 201466 PPSC - INSTRUCTOR (BS 17) - Management and Professional Development Department - 000077 PPSC - Inspector (BS 16) - Cooperative Societies - 202482 PPSC - Inspector (BS 16) - Youth Affairs100 PPSC - Inspector - Anti Corruption Establishment - 202054 PPSC - Inspector - Cooperative Societies Department Punjab - 201983 PPSC - Inspector - Excise & Taxation (D.G Khan Region) - 000090 PPSC - Inspector - Excise & Taxation (DG Khan Region) -9 PPSC - Inspector - Excise & Taxation (Lahore Region) -10 PPSC - Inspector - Excise & Taxation Additional Directorate - 000098 PPSC - Inspector - Excise & Taxation Department - 201898 PPSC - Inspector - Excise & Taxation Region (LAHORE) - 000089 PPSC - JUNIOR CLERK (BPS 07) - PUNJAB PUBLIC SERVICE COMMISSION - 000020 PPSC - JUNIOR CLERK (BPS 11) - S&GAD - 201669 PPSC - JUNIOR CLERK (BPS 11) - S&GAD - 201824 PPSC - JUNIOR CLERK (BPS 11) - S&GAD - 20161 PPSC - Junior Clerk (43J2022) - Board of Revenue - 202393 PPSC - Junior Clerk (BS 11) - Anti Corruption - 202070 PPSC - Junior Clerk (BS 11) - Anti Corruption Establishment Department - 202022 PPSC - Junior Clerk - Labour & Human Resource Department - 201991 PPSC - Junior Clerk - Punjab Police Department - 201898 PPSC - Junior Clerk - Punjab Police Department - 202271 PPSC - Junior Clerk - Punjab Public Service Commission (PPSC) - 201995 PPSC - Junior Clerk - Revenue Department - 201997 PPSC - Junior Clerk - S&GAD Punjab - 20181 PPSC - Junior Clerk - S&GAD Punjab - 201998 PPSC - Junior Clerk - Services and General Administration Department Punjab (S&GAD) - 20191 PPSC - Labour Inspector (BS 14) - Labour & Human Resource Department - 201970 PPSC - Labour Inspector - Labour & Human Resource Department - 202089 PPSC - Labour Inspector - Labour and Human Resource Department - 201894 PPSC - Labour Officer - Labour & Human Resource Department - 202076 PPSC - Labour Officer - Labour and Human Resource Department - 201892 PPSC - Lecturer Computer Science IT (BS 17) - Higher Education Department Punjab - 20171 PPSC - Lecturer Computer Science IT - Higher Education Department Punjab - 201798 PPSC - Lecturer English (Male) 9 Jun 2024 - Higher Education Department - 202442 PPSC - Lecturer History (Male) - Higher Education Department - 202156 PPSC - Manager (20M2020) - AUQAF - 20201 PPSC - Monitoring & Evaluation Assistant / Field Coordinator - Punjab Employees Social Security Institution - 201998 PPSC - NAIB TEHSILDAR (ENGLISH) (BS 14) - REVENUE DEPARTMENT PUNJAB - 2022161 PPSC - NAIB TEHSILDAR (GENERAL KNOWLEDGE) (BS 14) - REVENUE DEPARTMENT PUNJAB - 202280 PPSC - PMS - PPSC - 2024360 PPSC - PMS GK - 2020 MCQs1 PPSC - PMS General Knowledge - S&GAD - 201991 PPSC - PMS General Knowledge - S&GAD - 202018 PPSC - PMS General Knowledge - S&GAD - 202289 PPSC - PMS General Knowledge - S&GAD - 20191 PPSC - PMS General Knowledge - S&GAD - 20226 PPSC - Personal Assistant & Assistant (BPS 16) - S&GAD - 202094 PPSC - Personal Staff Officer (BS 17) - S&GAD - 202074 PPSC - Planning Officer /Deputy District Officer (Planning) - Planning & Development - 201493 PPSC - Provincial Management Service (PMS) - S&GAD - 201899 PPSC - Provincial Management Service PMS (Ministerial Quota) - S&GAD - 201995 PPSC - Service Center Official - Punjab Land Record Authority - 201890 PPSC - Service Center Officials (BPS 11) - Punjab Land Record Authority - 202088 PPSC - Social Security Officer – (PESSI) Labour and Human Resource Department - 201898 PPSC - Sub Inspector (BS-14) - Transport - 201998 PPSC - Sub Inspector (Open Merit) - Punjab Police - 20223 PPSC - Sub Inspector (Service Quota) - Punjab Police - 201985 PPSC - Sub Inspector - Cooperative Societies Punjab - 201896 PPSC - Sub Inspector - Punjab Police - 201982 PPSC - Tehsildar Consolidation Officer/Hill Torrent Officer /Reader to members Board of Revenue (BS 16) - Revenue Department - 20204 PPSC - ZILADAR (14 19G2020) - Irrigation Department - 202085 PPSC - ZILADAR (Research/DLR Zone) 14.20G2020 - Irrigation Department - 202084 Pakistan Studies: Combined competitive Examination 2023 Held in 2025 (2025)10 Physiotherapist (Punjab Special Education Department) Held on: 10-08-2024 (2024)20 Program Officer (I.T) Punjab Revenue Authority Held on 26-07-2024 (2024)18 Punjab held on 13-07-2024 (2024)48 SDEO Law Paper Batch-1 Morning (2025)36 SDEO Law Paper Batch-2 Evening (2025)63 SDEO Law Paper Batch-3 Morning (2025)38 SDEO PERA GK Held on 21.12.2025 (2025)92 SOCIAL WELFARE PAPER 20%GK held on 26-04-2025 (2025)21 SPSC - Assistant Director (BS 17) - Education Department Sindh - 202350 Sports100 Sports Archaeology & Tourism Department - 2019100 Statistical Officer BS-17 (24-02-2025) (2025)14 Sub Divisional Officer (2024)19 Sub Inspector (BS-14) Held on 19-10-2025 (2025)92 System Administrator 20262539 Tehsil Dar officer G.k Screening Held on (15-12-2024) (2024)91 ZILLADAR Evening paper (29-06-2025) (2025)95 ZILLADAR Morning (29-06-2025) (2025)99 11