Networking 1- Networking Basics

What is the purpose of a router in a network?

• To control the temperature of the network

• To connect different networks and route data packets between them.

• To cook food for the network users

• To play music in the network

Explain the difference between TCP and UDP protocols.

• TCP is a connection-oriented protocol that provides reliable and ordered delivery of data, while UDP is a connectionless protocol that does not guarantee delivery or order of data.

• TCP is a connectionless protocol that does not guarantee delivery or order of data, while UDP is a connection-oriented protocol that provides reliable and ordered delivery of data.

• TCP and UDP are both connectionless protocols that do not guarantee delivery or order of data.

• TCP and UDP are the same protocol with different names.

What is the function of an IP address?

• To uniquely identify a device on a network and enable communication between devices.

• To control the temperature of the room

• To cook food in the microwave

• To play music on the device

What is a subnet mask and how is it used in networking?

• A subnet mask is a tool used to measure the strength of a Wi-Fi signal

• A subnet mask is a 32-bit number that separates the network portion and the host portion of an IP address. It is used in networking to determine which part of an IP address is the network and which part is the host.

• A subnet mask is a type of facial mask used to protect the skin from harmful UV rays

• A subnet mask is a software used to block unwanted websites on a network

Describe the concept of DNS (Domain Name System).

• DNS is a system that translates website content to domain names.

• DNS is a system that translates email addresses to phone numbers.

• DNS is a system that translates IP addresses to domain names.

• DNS is a system that translates domain names to IP addresses.

What is the difference between a hub and a switch?

• A hub broadcasts data to all devices, while a switch forwards data only to the intended recipient.

• A hub and a switch perform the same function in a network

• A switch broadcasts data to all devices

• A hub forwards data only to the intended recipient

Explain the OSI model and its seven layers.

• The seven layers of the OSI model are: 1. Physical Layer, 2. Data Layer, 3. Network Layer, 4. Transport Layer, 5. Presentation Layer, 6. Application Layer, 7. Session Layer

• The seven layers of the OSI model are: 1. Hardware Layer, 2. Data Transfer Layer, 3. Internet Layer, 4. Transmission Layer, 5. Connection Layer, 6. Display Layer, 7. Software Layer

• The seven layers of the OSI model are: 1. Physical Layer, 2. Data Link Layer, 3. Network Layer, 4. Transport Layer, 5. Session Layer, 6. Presentation Layer, 7. Application Layer

• The seven layers of the OSI model are: 1. Input Layer, 2. Output Layer, 3. Processing Layer, 4. Storage Layer, 5. Memory Layer, 6. Display Layer, 7. Application Layer

What is the role of a firewall in network security?

• It acts as a barrier between a trusted internal network and untrusted external networks, controlling incoming and outgoing network traffic based on predetermined security rules.

• It is used to store data on the network

• It is used to create virtual private networks (VPNs)

• It is responsible for managing hardware devices in the network

What is the difference between IPv4 and IPv6?

• IPv4 uses 64-bit addresses, while IPv6 uses 256-bit addresses.

• IPv4 is used for wireless networks, while IPv6 is used for wired networks.

• IPv4 and IPv6 are the same and can be used interchangeably.

• IPv4 uses 32-bit addresses, while IPv6 uses 128-bit addresses.

Describe the concept of bandwidth in networking.

• The number of devices connected to a network

• Maximum data transfer rate of a network or internet connection

• The distance between two network nodes

• The physical width of the network cables