Computer Networking Questions – Set 11

Dear Aspirants,

Welcome to the Professional Knowledge Section in Affairscloud.com. Here we are providing sample questions in Computer Networking. It will be useful for the upcoming SBI Assistant Manager(System) and RRB Officer Scale – II(IT Officer) examinations. We have also included some important questions that are repeatedly asked in previous exams.

1. __________ is a conceptual location at which one OSI layer can request the services of another OSI layer.
   A. Entities
   B. SAP
   C. Peer Entities
   D. All of the Above
   E. None of the Above
   
   Answer & Explanation

   B. SAP
   Explanation:
   Service Access Point (SAP) – The component of a network address which identifies the individual application on a host which is sending or receiving a packet.
   
   
2. Which of the following protocol(s) is/are used for transferring data?
   A. Connection oriented
   B. Connection less services
   C. Connectivity
   D. Both (B) and (C)
   E. Both (A) and (B)
   
   Answer & Explanation

   E. Both (A) and (B)
   Explanation:
   TCP is an example of a connection-oriented protocol. It requires a logical connection to be established between the two processes before data is exchanged. Connection less protocols, in contrast, allow data to be exchanged without setting up a link between processes. Example for Connection less protocol – UDP.
   
   
3. Which of the following layer provide the necessary functions to enable communication between software application processes on different computers?
   A. Physical layer
   B. Data link layer
   C. Network layer
   D. Transport layer
   E. None of the Above
   
   Answer & Explanation

   D. Transport layer
   Explanation:
   The fourth and “middle” layer of the OSI Model is transport layer. Transport layer provide the necessary functions to enable communication between software application processes on different computers.
   
   
4. Which of the following is a code that allows two software programs to communicate with each other?
   A. TCP/IP
   B. API
   C. UDP
   D. All of the Above
   E. None of the Above
   
   Answer & Explanation

   B. API
   Explanation:
   Application program interface (API) is a set of routines, protocols, and tools for building software applications. An API specifies how software components should interact and APIs are used when programming graphical user interface (GUI) components.
   
   
5. Which of the following is/are example(s) of data link layer?
   A. Ethernet
   B. Token Ring
   C. FDDI
   D. All of the Above
   E. None of the Above
   
   Answer & Explanation

   D. All of the Above
   Explanation:
   Ethernet, Token Ring, FDDI and 802.11 (“wireless Ethernet” or “Wi-Fi’) are called “data link layer technologies”.
   
   
6. TFTP stands for?
   A. Trivial File Transfer Protocol (TFTP)
   B. Transfer File Trivial Protocol (TFTP)
   C. Trivial File Transit Protocol (TFTP)
   D. Transfer File Transfer Protocol (TFTP)
   E. Transit File Trivial Protocol (TFTP)
   
   Answer & Explanation

   A. Trivial File Transfer Protocol (TFTP)
   Explanation:
   Trivial File Transfer Protocol (TFTP) is an Internet software utility for transferring files that is simpler to use than the File Transfer Protocol (FTP) but less capable. It is used where user authentication and directory visibility are not required.
   
   
7. ________ is a software application used within an Internet message handling system (MHS).
   A. Mail Transfer Agent(MTA)
   B. Message Transfer Agent(MTA)
   C. Mail Transport Agent
   D. All of the Above
   E. None of the Above
   
   Answer & Explanation

   D. All of the Above
   Explanation:
   A mail server(aka a Mail Transfer Agent(MTA), a mail transport agent, a mail router or an Internet mailer) is an application that receives incoming e-mail from local users (people within the same domain) and remote senders and forwards outgoing e-mail for delivery.
   
   
8. _________ refers to a standard used for transmitting IP data grams across IEEE 802 networks.
   A. HTML
   B. HTTP
   C. Sub Network Access Protocol (SNAP)
   D. All of the Above
   E. None of the Above
   
   Answer & Explanation

   C. Sub Network Access Protocol (SNAP)
   Explanation:
   The Sub Network Access Protocol (SNAP) is an extension of the IEEE 802.2 Logical Link Control (LLC) to distinguish much more protocols of the higher layer than using of the 8-bit Service Access Point fields (LSAP) present in the IEEE 802.2 header.
   
   
9. ______ are used as the simplest form of error detecting code
   A. Parity bits
   B. Network bits
   C. Data bits
   D. All of the Above
   E. None of the Above
   
   Answer & Explanation

   A. Parity bits
   Explanation:
   A parity bit is a single bit added to a binary data transmission used to indicate if whether the 0’s and 1’s within that data transmission is an even or odd number. The parity bit is used in parity error checking to find errors that may occur during data transmission.
   
   
10. ________ is the number of times a signal in a communications channel changes state or varies.
    A. Bit rate
    B. Baud rate
    C. Net bit rate
    D. All of the Above
    E. None of the Above
    
    Answer & Explanation

    B. Baud rate
    Explanation:
    Baud rate refers to the number of signal or symbol changes that occur per second