Short Answer Type Questions: Computer Networking | Computer Science for Grade 9 PDF Download

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Q.1. State the difference between TCP and IP.

TCP/IP is a two-layer program where the higher layer, TCP, manages the assembling of a message or file into smaller packets that are transmitted over the Internet and received by a TCP layer that reassembles the packets into the original message. The lower layer, IP, on the other hand handles the address part of each packet so that it gets to the right destination.

Q.2. List two advantages of a network.

The following are some of the most important uses and benefits of a computer network.

• File sharing: Networking of computers helps the network users to share data files.
• Hardware sharing: Users can share devices such as printers, scanners, CD-ROM drives, hard drives, etc.

Q.3. What is a wi-fi hotspot?

A hotspot is a physical location where people may obtain Internet access, typically using Wi-Fi technology, via a wireless local area network (WLAN) using a router connected to an internet service provider.

Q.4. What is a protocol?

In computing, a protocol or communication protocol is a set of rules in which computers communicate with each other. The protocol says what part of the conversation comes at which time. It also says how to end the communication.

Q.5. Name the type of network that spans over an area near an individual, typically within a range of 10 meters.

PAN(Personal Area Network)

Q.6. State two disadvantages of microwaves.

Disadvantages

• Line-of-sight will be disrupted if any obstacle, such as new buildings, are in the way.
• Difficult weather conditions like rain, thunder, storm, lightening affects microwave transmission.

Q.7. What are protocols used to determine?

The protocols are used to determine the following:

• type of error checking to be used, data compression method (if any),
• how the sending device will indicate that it has finished a message and how the receiving device will indicate that it has received the message.

Q.8. What is a Computer Network?

A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users.

Q.9. State two advantages of infrared waves.

Advantages

• Compared to other transmission media infrared transmission consumes less power.
• Cost of setting up, i.e., the circuit is very economical.

Q.10. Name two guided media used in a network.

Twisted Pair and Co-axial