PowerSchool India Interview Questions and Answers

OSI model is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system. Transport layer is responsible for end-to-end communication between applications.

• OSI model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

• Transport layer provides reliable and sequential delivery of data between end systems.

• It ensures error-free data transmission, flow control, and congestion...read more

DHCP (Dynamic Host Configuration Protocol) assigns IP addresses to devices on a network, while DNS (Domain Name System) translates domain names to IP addresses.

• DHCP dynamically assigns IP addresses to devices on a network

• DNS translates domain names to IP addresses

• I have experience configuring DHCP and DNS servers in network setups

The network layer is responsible for logical addressing and routing of data packets across different networks.

• Network layer is the third layer of the OSI model.

• It provides logical addressing to devices on the network.

• IP (Internet Protocol) is a commonly used protocol at this layer.

• Routing protocols like OSPF and BGP operate at this layer.

• Network layer devices include routers and layer 3 switches.

Root bridge election is the process by which switches in a network determine which switch will be the root bridge.

• Root bridge is the central bridge in a spanning tree network

• Switches exchange bridge protocol data units (BPDUs) to elect the root bridge

• The switch with the lowest bridge ID becomes the root bridge

• Root bridge election helps in determining the best path for data transmission

Networking devices are hardware devices that are used to connect computers and other devices to create a network.

• Networking devices include routers, switches, hubs, modems, access points, and network adapters.

• Routers are used to connect multiple networks together and route data between them.

• Switches are used to connect devices within a network and manage the traffic between them.

• Hubs are basic networking devices that connect multiple devices in a network.

• Modems are used to co...read more

An IP address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

• IP addresses are used to identify and locate devices on a network

• There are two types of IP addresses - IPv4 and IPv6

• IPv4 addresses are 32-bit numbers written in decimal format (e.g. 192.168.1.1)

• IPv6 addresses are 128-bit numbers written in hexadecimal format (e.g. 2001:0db8:85a3:0000:0000:8a2e:0370:7334)