A 4 KHz noiseless channel with one sample every 125 per sec, is used to transmit digital signals. Find the bit rate (bits per second) that are sent, if CCITT 2.048 Mbps encoding is used.
A. 500 Kbps
B. 32 Kbps
C. 8 Kbps
D. 64 Kbps
E. None of the above
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How can you see the address of the DHCP server from which a client received its IP address?
A. By using Advanced Properties of TCP/IP
B. By using IPCONFIG/ALL
C. By using DHCPINFO
D. By pinging DHCP
E. None of the above
Select an option to see the answer and solution.
In a synchronous modem, the receive equalizer is known as
A. adaptive equalizer
B. impairment equalizer
C. statistical equalizer
D. compromise equalizer
E. None of the above
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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. Server-based
B. Token-Ring
C. Ethernet
D. Star
E. Peer-to-peer
Select an option to see the answer and solution.
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. Modem
C. Scanner
D. Fax
E. None of the above
Select an option to see the answer and solution.
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
E. None of the above
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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
E. None of the above
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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
E. None of the above
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What operates in the Data Link and the Network layer?
A. NIC
B. Bridge
C. Brouter
D. Router
E. None of the above
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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
E. None of the above
Select an option to see the answer and solution.
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
E. None of the above
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Devices on one network can communicate with devices on another network via a
A. file server
B. utility server
C. printer server
D. gateway
E. None of the above
Select an option to see the answer and solution.
After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?
A. Telex
B. Word processor
C. Facsimile
D. Electronic mail
E. None of the above
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Which file transfer protocol uses UDP?
A. NFS
B. TELNET
C. TFTP
D. FTP
E. None of the above
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You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?
A. 255.255.255.0
B. 255.255.255.224
C. 255.255.255.240
D. 255.255.255.248
E. 255.255.255.252
Select an option to see the answer and solution.
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
E. None of the above
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Which of the following medium access control technique is used for bus/tree?
A. token ring
B. token bus
C. CSMA
D. MAC
E. None of the above
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A distributed data processing configuration in which all activities must pass through a centrally located computer is called a:
A. ring network
B. spider network
C. hierarchical network
D. data control network
E. None of the above
Select an option to see the answer and solution.
The size or magnitude of a voltage or current waveform is
A. Amplitude
B. Aloha
C. Angle Modulation
D. Attenuation
E. None of the above
Select an option to see the answer and solution.
Which of the following network access standard is used for connecting stations to a circuit-switched network?
A. X.3
B. X.21
C. X.25
D. X.75
E. None of the above
Select an option to see the answer and solution.
