Exploring Computer Networks

What is a network protocol?

• A network protocol is a type of hardware used for networking.

• A network protocol is a software application for browsing the internet.

• A network protocol is a physical connection between two devices.

• A network protocol is a set of rules for data communication between devices.

Name three common network protocols.

• SSH, Telnet, ICMP

• HTTP, FTP, TCP

• SMTP, IMAP, POP3

• DNS, DHCP, SNMP

What does TCP stand for?

• Transmission Communication Protocol

• Transmission Control Protocol

• Transfer Control Protocol

• Transmission Connection Protocol

Explain the purpose of the IP address.

• To encrypt data transmitted over the internet.

• The purpose of the IP address is to identify and locate devices on a network.

• To serve as a backup for network devices.

• To provide a unique username for each user.

What is the difference between TCP and UDP?

• TCP is used for streaming video while UDP is used for file transfers.

• TCP is reliable and connection-oriented, while UDP is faster and connectionless.

• UDP guarantees delivery of packets while TCP does not.

• TCP is faster and connection-oriented than UDP.

What layer of the OSI model does TCP operate on?

• Transport layer

• Application layer

• Data link layer

• Network layer

What is the primary function of the Transport layer?

• To provide reliable data transfer and communication between applications.

• To establish physical connections between devices.

• To manage network routing and addressing.

• To encrypt data for secure transmission.

Define what a subnet mask is.

• A subnet mask is used to encrypt data.

• A subnet mask defines the speed of a network connection.

• A subnet mask is used to determine which part of an IP address is the network address and which part is the host address.

• A subnet mask is a type of firewall.

What is the role of a router in a network?

• A router amplifies signals to increase network speed.

• A router manages user accounts on a network.

• A router is used to store data permanently.

• The role of a router in a network is to connect different networks and direct data packets between them.

What does DHCP stand for and what is its function?

• Dynamic Host Configuration Protocol

• Dynamic Host Control Protocol

• Dynamic Host Configuration Process

• Dynamic Host Communication Protocol