Oral Exam

In: Computers and Technology

Submitted By tainguyen5501
Words 951
Pages 4
1. Explain the I/O process.
Describes any operation, program, or device that transfers data to or from a computer. Typical I/O devices are printers, hard disks, keyboards, and mouses.
2. You typed “abcd”, but the local printer prints garbled text. How do you resolve this issue? You have the wrong printer driver. For the printer you are using. Delete the current printer configuration and install the right driver. If you don’t have the disk with the driver go online and download the correct driver.
3. What is the OSI model? (Open Systems Interconnection) is a model that characterizes the internal funcions of a communication system by partitioning it into abstraction layers. It helps provide error-free communications across a network and provide a path needed by applications. The seven layers are 1. Physical, 2. Data link, 3.network, 4.transport, 5.session, 6. Presentation, 7. Application,
4. Use the OSI model to explain how an email message from you gets read by the recipient on his/her computer?They physical layer conveys the bit stream through the network at the electrical and mechanical level. The data-link layer provides synchronization for the physical level and does bit-stuffing for strings of 1’s in excess of 5.
5. A user reports that they cannot download a file from the Internet. Using the OSI model, what are some of the questions a network administrator may ask to troubleshoot this problem? Check your tcp/ip configuration, ping the loopback address, clear the address resolution protocol (ARP) cache.
6. Describe popular broadband solutions available to consumers in todays market?
1.DSL, digital subscriber line, uses copper wires and range from the speed of several hundred kbps to millions of bits per second. 2. Cable modem, use coaxial cable and provide speed of 1.5 mbps or more. 3. Fiber, converts electrical signals carrying data to light and sends…...

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