What is Network and Internet Questions and Answers - Set 02 - ObjectiveBooks

What is Network and Internet Questions and Answers - Set 02

Practice Test: Question Set - 02


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

2. Typewriter terminals can print computer-generated data at a rate of
    (A) 10 characters per second
    (B) 120 characters per second
    (C) 120 characters per minute
    (D) 1200 characters per minute

3. The transmission signal coding method of TI carrier is called
    (A) Bipolar
    (B) NRZ
    (C) Manchester
    (D) Binary

4. A modem that is attached to the telephone system by jamming the phone's handset into two flexible receptacles in the coupler?
    (A) Gateway
    (B) Bridge
    (C) Acoustic coupler
    (D) Time-division multiplexer

5. The network layer, in reference to the OSI model, provide
    (A) Data link procedures that provide for the exchange of data via frames that can be sent and received
    (B) The interface between the X.25 network and packet mode device
    (C) The virtual circuit interface to packet-switched service
    (D) All of the above

6. HDLC (High-level Data Link Control) is
    (A) A method of determining which device has access to the transmission medium at any time
    (B) A method access control technique for multiple-access transmission media
    (C) A very common bit-oriented data link protocol issued by ISO
    (D) Network access standard for connecting stations to a circuit-switched network

7. Layer one of the OSI model is
    (A) Physical layer
    (B) Link layer
    (C) Transport layer
    (D) Network layer

8. Error detection at a data link level is achieved by
    (A) Bit stuffing
    (B) Cyclic redundancy codes
    (C) Hamming codes
    (D) Equalization

9. You are working with a network that is 172.16.0.0 and would like to have the maximum number of hosts per subnet. This assumes support for eight subnets. What subnet mask should you use?
    (A) 255.255.192.0
    (B) 255.255.224.0
    (C) 255.255.240.0
    (D) 255.255.248.0

10. How many pairs of stations can simultaneously communicate on Ethernet LAN?
    (A) 1
    (B) 2
    (C) 3
    (D) Multiple

11. In a synchronous modem, the receive equalizer is known as
    (A) Adaptive equalizer
    (B) Impairment equalizer
    (C) Statistical equalizer
    (D) Compromise equalizer

12. Which of the following technique is used for Time-To-Line (TTL)?
    (A) A technique used in best-effort delivery system to avoid endlessly looping packets
    (B) A technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame
    (C) One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
    (D) All of the above

13. Sales persons and other employees of the company who spend much of their time away from their offices but keep in touch with their company's microcomputers or main frame computers over telephone lines are called
    (A) Field workers
    (B) Telecommuters
    (C) Teleprocessors
    (D) Company directors

14. The main difference between TCP and UDP is
    (A) UDP is connection oriented where as TCP is datagram service
    (B) TCP is an Internet protocol where as UDP is an ATM protocol
    (C) UDP is a datagram where as TCP is a connection oriented service
    (D) All of the above

15. You have a network ID of 134.57.0.0 and you need to divide it into multiple subnets in which at least 600 host IDs for each subnet are available. You desire to have the largest amount of subnets available. Which subnet mask should you assign?
    (A) 255.255.224.0
    (B) 255.255.240.0
    (C) 255.255.248.0
    (D) 255.255.255.0

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