Networking Exam Preparation Questions and Answers - Set 01 - ObjectiveBooks

Networking Exam Preparation Questions and Answers - Set 01

Practice Test: Question Set - 01

1. Modulation is the process of
    (A) Sending a file from one computer to another computer
    (B) Converting digital signals to analog signals
    (C) Converting analog signals to digital signals
    (D) Echoing every character that is received

2. What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?
    (A) E-mail
    (B) Bulletin board system (BBS)
    (C) Teleconferencing
    (D) Videoconferencing

3. A devices that links two homogeneous packet-broadcast local networks, is
    (A) Hub
    (B) Bridge
    (C) Repeater
    (D) Gateway

4. Operating system functions may include
    (A) Input/output control
    (B) Virtual storage
    (C) Multiprogramming
    (D) All of the above

5. A network designer wants to connect 5 routers as point-to-point simplex line. Then the total number of lines required would be
    (A) 5
    (B) 10
    (C) 20
    (D) 32

6. Distributed Queue Dual Bus is a standard for
    (A) LAN
    (B) MAN
    (C) WAN
    (D) LAN and MAN

7. A characteristic of a multiprogramming system is:
    (A) Simultaneous execution of program instructions from two applications
    (B) Concurrent processing of two or more programs
    (C) Multiple CPUs
    (D) All the above

8. Which of the following statement is incorrect?
    (A) Gateways are assumed to know correct routes; hosts begin with minimal routing information and learn new routes from gateways.
    (B) Layered protocols are designed so that layer n at the destination receives exactly the same object sent by layer n at the source.
    (C) Application programs as well as all protocol software from the Internet layer upward use only IP addresses; the network interface layer handles physical addresses.
    (D) All of the above

9. What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard?
    (A) 4
    (B) 2
    (C) 6
    (D) 3

10. Which utility is useful for troubleshooting NetBIOS name resolution problems?
    (B) Netstat
    (C) PING
    (D) Hostname

11. In OSI model, which of the following layer provides error-free delivery of data?
    (A) Data link
    (B) Network
    (C) Transport
    (D) Session

12. The signal to noise ratio for a voice grade line is 30.1 dB (decibels) or a power ratio of 1023:1. The maximum achievable data rate on this line whose spectrum ranges from 300 Hz to 4300 Hz is
    (A) 6200 bps
    (B) 9600 bps
    (C) 34000 bps
    (D) 31000 bps

13. Which of the following is a wrong example of network layer?
    (A) Internet Protocol (IP) ARPANET
    (B) X. 25 Packet Level Protocol (PLP) - ISO
    (C) Source routing and Domain naming - Usenet
    (D) X.25 level 2 - ISO

14. What is the name of the device that connects two computers by means of a telephone line?
    (A) Tape
    (B) Modem
    (C) Bus
    (D) Cable

15. You have a network ID of and require at least 25 host IDs for each subnet, with the largest amount of subnets available. Which subnet mask should you assign?

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