Computer Science with Python - Class XII

These flashcards cover key concepts in Computer Science with Python, focusing on networking, SQL, and key terminologies.

The first mobile systems were introduced in the __ period.

late 1940s in the US and early 1950s in Europe.

The technology that uses digital signals for voice transmission is known as __.

2G Mobile Systems.

GPRS stands for __.

General Packet Radio Service.

The __ protocol allows the transmission of email over the Internet.

Simple Mail Transfer Protocol (SMTP).

The protocol responsible for checking email messages is __.

Post Office Protocol (POP3).

A network is a collection of __ computers that communicate with one another.

independent.

The two major components of TCP/IP are and .

Transmission Control Protocol (TCP) and Internet Protocol (IP).

A device that enables data to be transmitted over a telephone line is called a __.

modem.

A __ is a network device that connects two different networks.

gateway.

The model used to connect computers in a local area network is called __.

Network Interface Unit (NIU).

__ is a transmissions medium that uses electromagnetic waves.

Wireless transmission media.

The __ type of network connects computers over a short distance, typically within a single building.

Local Area Network (LAN).

A __ network usually encompasses a city or a large campus, connecting multiple buildings.

Metropolitan Area Network (MAN).

The technique that establishes a dedicated physical connection between two nodes is __.

Circuit Switching.

In packet switching, data is transmitted in sizes called .

fixed; packets.

__ switching is used to efficiently transmit data across the network by separating data into packets.

Packet.

In a __ topology, all devices are connected to a single central hub.

Star.

The first generation mobile systems are primarily based on __ technology.

analog cellular.

HTTP stands for __.

HyperText Transfer Protocol.

The __ operator allows users to specify multiple values in a WHERE clause in SQL.

IN.

The principle used to establish a connection between different networks is __.

Router.

A __ is a network device that processes and filters packets along with forwarding them to their destination.

Switch.

In SQL, the command used to create a table is __.

CREATE TABLE.

A firewall is used for __ in a network.

preventing unauthorized access.

The __ states the relationship between host names and IP addresses.

DNS (Domain Name Service).

In Boolean algebra, the sum of A + 0 = __.

A.