Network Services and Communication Devices

Q1. What is the use of network services?

• Network services enable computers to share data, processing power, and devices. Commonly used network services are file services, print services, and messaging services

 

Q2. What is the use of file services?

• File services are used to store and retrieve data files between devices. The different types of application of file services are file access, file synchronization, file backup, and file history.

 

Q3. What is the use of print services?

• Print services are used to share output devices such as print and fax servers.

 

Q4. What are the services provided by an operating system?

• Program execution
• I/O operations
• File System manipulation
• Communication
• Error detection

 

Q5. What is Load balancing?

• Load balancing is the process by which incoming IP traffic can be distributed across multiple servers. It increases the performance of the servers, leading to optimal utilization of servers.

 

Q6. What is messaging services used for?

• Messaging services are used for the communication among users. their applications, network applications, and individual documents. The user of the messaging services can be a user or application.

 

Q7. What is electronic mail?

• Electronic mail is a set of applications that supports the transfer of information and data between two network users.

 

Q8. What is Dynamic Host Configuration protocol (DHCP) used for?

• DHCP is a configuration protocol that allows a computer to be configured automatically to communicate with other computers on the network and provides a centralized database to keep track of computers that have been connected to the network.

 

Q9. What layer does repeater work on?

• Physical layer of the OSI model.

 

Q10. What is the role of Bridges?

• Bridges read the physical address of a device in one network and filters the information before passing the information to another network.

 

Q11. What layer does a bridge work on?

• A bridge works on the MAC layer of the data link layer in the OSI model

 

Q12. Can bridges connect networks with different architectures?

• yes, bridges can connect different types of networks, such as Ethernet and token ring.

 

Q13. How bridges prevents the formation of loops in a network?

• Bridges support the spanning tree algorithm, which helps in communicating with each other and negotiating which bridge will remain in the blocking state; and therefore, prevent formation of loops in the network.

 

Q14. What is the role of a Router?

• A router routes the packets between two networks. It reads the information in each packet to determine where it is going. If the packet is destined for an immediate network to which it has access, then it strips the outer packet, re-addresses the packer to the proper Ethernet address, and transmits it on that network. Of the packet is destines for another network, then it re-packages the outer packet and sends it to the next router. 

 

Q15. What layer does a router works on?

• A router works on the network layer of the OSI model.

 

Q16. What is the difference between static router and dynamic router?

• Static router is configured manually; whereas, dynamic router uses the dynamic routing algorithm to route the packets.

 

Q17. What is the role of gateways?

• Gateways translate information between different network architectures or network data formats. For example, it can translate TCP/IP to AppleTalk so that the computers supporting TCP/IP can communicate with the Apple brand computers.

 

Q18. Which device is used to divide a network into logical subnets?

• Router