Repeated PSC Questions on Network Devices

Repeated Kerala PSC Questions on Network Devices

This post is a compilation of frequently asked questions on the Computer-based topic, 'Network Devices,' from previous year Kerala PSC questions for degree level PSC exams.

Previous Year Repeated PSC Questions on  Network Devices

  • The Gateway Internet Access Services (GIAS) of India is situated in – Mumbai. (Tradesman (Information Technology), 2016)
  • Portable device for high-speed internet connection – Dongle. (Clerk cum Typist (Degree Level Main Exam), 2023)
  • Weakening of signal power as light travels down in fibre optic cable is called as – Attenuation. (Junior Instructor (Network Technician), 2015)


  • Repeater operates on – Physical Layer. (Junior Instructor (Network Technician), 2015)
  • A device which is used to boost the signal between two cable segments or wireless access points is – Repeater. (Programmer PSC, 2015)
  • The primary function of a network repeater is to – Amplify and regenerate network signals. (IT Officer, 2023)
  • Which among the following devices operates only used in physical layer? (Head of Section Computer Engineering, 2019)
    • (A) Two layer switch      (B) Router  (C) Repeater      (D) Bridge


  • The device used to connect computers of the same network in a wired connection – Hub. (Tradesman (Computer Engineering), 2016)
  • Active Hub serves as a – Both wiring as well as a repeater center. (Librarian Gr III, 2024)
  • If a hub fails in this type of network, the whole system will shut down – Star. (Junior Instructor (Software Testing Assistant), 2019)
  • Which of the following statements is/are false? (Degree Prelims Stage III, 2023)
    • (i)   Hub operates on data link layer while switch operates on physical layer.
    • (ii)  Hub is broadcast type transmission.
    • (iii) Router operates on network layer.
    • (A) (i) only      (B) (i) and (ii)          (C) (i), (ii) and (iii)       (D) (ii) and (iii)


  • What device is utilized to interconnect similar LANs with identical protocols? Bridges. (Junior Systems Officer, 2024)
    •  A networking device used to connect similar types of LANs – Bridge. (Lab Technical Assistant Computer Application, 2017)
  • Frames from one LAN can be transmitted to another LAN via a device called – Bridge. (Tradesman (Information Technology), 2016)
  • ___________ operate at the physical and datalink layer of OSI model – Bridge. (Assistant Gr II Kerala Forest Development Corp, 2016)
  • Which of the following devices will increase bandwidth and separating collision domains? (Junior Instructor (Network Technician), 2015)
    • (A) Switch   (B) Hub     (C) Router     (D) Bridge


  • The network device used to connect multiple computers in a network is – Switch. (Computer Operator Information & Public Relations, 2016)
  • A device which is used to boost the signal between two cable segments or wireless access points is – Switch. (Junior Inspector of Co-operative Societies, 2020)
  • Device that helps prevent congestion and data collisions – Switch. (Range Forest Officer (By Transfer) Prelims, 2023)
  • Which one changes the link-layer address of the source and destination packets? Switch. (Tradesman- Information Technology, 2023)
  • Forwarding the frame into its different ports, after checking the source and destination address of a frame, is the responsibility of– Switch. (Tradesman- Information Technology, 2023)


  • The device that can interconnect two networks of the same type using the same protocol. The above-mentioned device is – Router. (Cashier/Field Officer, 2023)
  • Best name for a junction that allows one to enter in to network or to exit out of the network – Router. (Junior Instructor (Network Technician), 2015)
  • Router works at the _____ layer of the OSI model – 3rd. (Junior Instructor (Data Entry Operator), 2014)
  • Which one regenerates the signal, check the network physical address of packets and check the network layer address? Router. (Tradesman Information Technology, 2023)
  • A typical router in the core of the Internet has – (Junior Manager (Information Management), 2023)
    • (A) Multiple network interfaces, each with its own IP address
    • (B) Buffers to hold a queue of packets at input or output ports
    • (C) A scheduling algorithm to determine which queued packet goes next
    • (D) All of the above
  • The input and output ports of a router perform the _____ layer functions – Physical and Data link. (Junior Instructor(Information Communication Technology System Maintenance), 2019)
  • In ISO-OSI network architecture, routing is performed by – Network Layer. (Computer Operator Information & Public Relations, 2016)
  • One of the following device works on the physical, data-link and network layer of the OSI model: (State Tax Officer 2023)
    • (A) Hub     (B) Router     (C) Bridge    (D) Switch
  • Which of the following is not a switching system ? (Catalogue Assistant 2023)
    • (A) Packet   (B) Circuit    (C) Router    (D) Message


  • The device that is used to connect two different networks is called ____ – Gateway. (Time Keeper (Degree Level Main Exam), 2023)
  • A _________ is a passage to connect two networks together that may work upon different networking models – Gateway. (Station Officer(Trainee), 2023)
  • Network device to translate one protocol into the other protocol is – Gateway. (Junior Instructor (Computer Operator & Programming Assistant), 2023)
  • ____________ is a device that connects networks with different protocols – Gateway. (Higher Secondary School Teacher (Junior) Computer Science, 2023)
  • A network device that connects dissimilar networks by providing the translation from one set of protocols to another is – Gateway. (Junior Instructor(Information Communication Technology System Maintenance), 2019)
  • Which one of the following is a protocol converter which used to connect two systems, specifically if the systems use different protocols? (Junior Instructor (Computer Hardware & Network Maintenance), 2023)
    • (A) Modem    (B) Gateway    (C) Switch    (D) Router
  • Best name for a junction that allows one to enter into a network or exit out of the network – Gateway. (Junior Instructor (Network Technician), 2015)
  • _______ device can join a LAN to a WAN – Gateway. (Degree Level Prelims Stage II, 2023)
  • Circuit-Level Gateways are – Firewall. (Workshop Instructor (Computer Hardware & Maintenance, 2024)
  • വിവിധ തരത്തിലും പ്രോട്ടോക്കോളിലും പ്രവർത്തിക്കുന്ന കമ്പ്യൂട്ടർ ശൃഖലകളെ ബന്ധിപ്പിക്കാൻ ______ ഉപയോഗിക്കുന്നു – ഗേറ്റ് വേ. (Junior Assistant, 2023)
  • താഴെ പറയുന്ന നെറ്റ്‌വർക്ക് ഉപകരണങ്ങളിൽ പ്രോട്ടോകോൾ പരിവർത്തനത്തിനു കഴിവുള്ളത് ആർക്കു? (LD Clerk, 2021)
    • (A) റിപീറ്റർ    (B) ബ്രിഡ്ജ്    (C) റൗട്ടർ    (D) ഗേറ്റ് വേ


  • Modem was invented in – USA, 1950. (Deputy Manager, 2023)
  • Modem stands for – Modulator Demodulator. (Instructor In Secretarial Practice, 2017)
  • ………….enables computers to communicate via telephone line – Modem. (Data Entry Operator (Scheduled Tribe Development) 2013; Assistant Salesman, 2021)
  • What are the functions of MODEM? (Junior Instructor (Computer Operator & Programming Assistant), 2023)
    • (i) Analog Signal to Digital Signal
    • (ii) Digital Signal to Analog Signal
    • (iii) Analog Signal to Analog Signal
    • (iv) Digital Signal to Digital Signal
    • (A) Both (i) & (ii) (B) (i) Only (C) (iii) Only (D) Both (iv) & (iii)
  • The device used to convert digital signal to analog is called – Modem. (Tradesman (Computer Engineering), 2016)
  • A device that modulates signals to encode digital information and demodulates signals to decode the transmitted information – Modem. (Assistant - Universities in Kerala, 2016)
    • The network device that both modulates and demodulates analog carrier signals for encoding and decoding digital information for Transmitting and Receiving – Modem. (Junior Instructor (Computer Hardware & Network Maintenance), 2023)
    • The process of converting analogue signal into digital information is done by – Modem. (Computer Gr II (Printing), 2016)
  • The transmission rate of data in a modem is measured in – bits per second. (Engineering Assistant (Electronics)/Overseer Gr I (Electronics), 2021)

NIC (Network Interface Devices)

  • Expansion card that connects a computer to a network – Network Interface Card. (Tradesman Information Technology, 2023)
  • The hardware component in the computer on a network which controls the flow of data regardless of wireless and topology used is – NIC. (Degree Level Prelims, Stage I, 2021)
  • Manufacturers of Ethernet NICs request a block of Ethernet addresses from __________ to ensure that no two NICs have the same address – IEEE. (Workshop Instructor (Computer Hardware & Maintenance, 2024)


  • Match the following (Project Assistant/ Unit Manager, 2023)
    • i. Bridge               a. Connects two different LAN working on same protocol
    • ii. Gateway           b. Connects two different networks works on different protocols
    • iii. Modem            c. Connects different devices to a network and make them communicate each other
    • iv. Router              d. Connect the devices to Internet
    • Choose the correct option from the following
    • (A) i-a, ii-b, iii-d, iv-c         (B) i-b, ii-c, iii-d, iv-a
    • (C) i-a, ii-d, iii-b, iv-c         (D) i-b, ii-d, iii-c, iv-a
  • Among the following list of network devices: (University Assistant (Main Examination), 2023)
    • i. Repeater
    • ii. Hub
    • iii. Switch
    • iv. Router
    • Which of the following are considered as intelligent devices ?
    • (A) i and iv only          (B) i and ii only
    • (C) iii and iv only      (D)) ii and iii only