33. Which of the following statement is incorrect? |
| Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line |
| HDLC is a standard synchronous communication protocol. |
| RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data |
| RTS/CTS is the way the terminal indicates ringing |
34. The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as: |
| modulation |
| demodulation |
| synchronizing |
| digitizing |
35. In OSI network architecture, the dialogue control and token management are responsibility of |
| session layer |
| network layer |
| transport layer |
| data link layer |
36. Which of the following types of channels moves data relatively slowly? |
| wide band channel |
| voice band challen |
| narrow band channel |
| none of above |
37. Which file organization is allowed by a direct access storage device? |
| direct only |
| sequential and direct only |
| indexed and direct only |
| sequential, indexed and direct |
38. If you need to duplicate the entire disk, which command will you use? |
| Copy |
| Diskcopy |
| Chkdsk |
| Format |
39. A data terminal serves as an |
| ffector |
| ensor |
| oth a and b |
| either a nor b |
40. Which command displays the directory list including files in tree structure? |
| Dir/s/f |
| Tree/f |
| Tree/s/f |
| Dir/f |
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