Networking |MCQ Networking |Competitive Examination | Set15

Q.1. In a synchronous modem, the receive equalizer is known as
a. adaptive equalizer b. impairment equalizer c. statistical equalizer d. compromise equalizer
Answer:a
Q.2. RS-449/442-A/423-A is
a. a check bit appended to an array of binary digits to make the sum of the all the binary digits b. a set of physical layer standards developed by EIA and intended to replace RS-232-C c. a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression the resulting expression will not conform to the rules of construction and thus the presence of the errors is detected d. the ratio of the number of data units in error to the total number of data units
Answer: b
Q.3. Alex is required to provide information on how many people are using the network at any one time. Which network will enable him to do so ?
a. Ethernet b. Token-Ring c. Server-based d. Star
Answer: c
Q.4. Which of the following digits are known as the area code of the Network User Address (NUA) ?
a. The CCITT Recommendation X.25 specifies three layers of communication: physical, link and network b. The second layer of communication is the data-link layer c. Errors in the physical layer can be detected by the data link layer d. The fourth layer, in reference to the OSI model, is the session layer
Answer: d
Q.5.Devices on one network can communicate with devices on another network via a
a. 5-7 b. 1-4 c. 8-12 d. 13-14
Answer: a
Q.6. Now-a-days computers all over the world can talk to each other. Which is one of the special accessories essential for this purpose
a. Keyboard . b. Scanner . c. Modem d. All of the above.
Answer: c
Q.7. End-to-end connectivity is provided from host-to-host in ?
a. Network layer b. Session layer c. Data link layer d. Transport layer
Answer: d
Q.8. To make possible the efficient on-line servicing of many teleprocessing system users on large computer systems, designers are developing ?
a. communication systems b. multiprogramming systems c. virtual storage systems d. All of the above
Answer: d
Q.9. A form of modulation In which the amplitude of a carrier wave is varied in accordance with some characteristic of the modulating signal, is known as ?
a. Amplitude modulation b. modem c. Aloha d. None of the above
Answer: a
Q.10. Which of the following best describes the scopes on each DHCP server, in the absence of configuration problems with DHCP addresses, if you use multiple DHCP servers in your environment ?
a. Unique to that subnet only b. For different subnets c. For no more than two subnets d. For no subnets
Answer: b
Q.11. CSMA (Carrier Sense Multiple Access) 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
Answer: b
Q.12. Which of the following summation operation is performed on the bits to check an error-detecting code ?
a. Codec b. Coder-decoder c. Checksum d. Attenuation
Answer: c
Q.13. 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
Answer: c
Q.14. The standard suit of protocols used by the Internet, intranets, extranets, and some other networks ?
a. TCP/IP b. Protocol c. Open Systems d. Internetwork processor
Answer: a
Q.15. What operates in the Data Link and the Network layer ?
a. NIC b. Bridge c. Brouter d. Router
Answer: c
Q.16. Networks that follow the 802.5 standard appear to be in a star topology but are actually operating in what type of topology ?
a. Linear bus b. Modified star c. Modified ring d. Ring
Answer: d
Q.17. 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
Answer: b
Q.18. A communications device that combines transmissions from several 1/ O devices into one line is a:
a. concentrator b. modifier c. multiplexer d. full-duplex line
Answer: c
Q.19. Which of the following statement is incorrect ?
a. The CCITT Recommendation X.25 specifies three layers of communication: physical, link and network. b. The second layer of communication is the data-link layer c. Errors in the physical layer can be detected by the data link layer d. The fourth layer, in reference to the OSI model, is the session layer
Answer: d
Q.20. Devices on one network can communicate with devices on another network via a ?
a. file server b. utility server c. printer server d. gateway
Answer:d

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