Test: Computer Networks - 1 - Computer Science Engineering (CSE) MCQ

The RS232C is a standard interface for serial data transmission that defines the protocol and physical interface for transmitting serial data fairly easily between associated appliances and computers.

Double duplex is not a legitimate channel for transmission in computer network.

The optical fiber is made of glass or plastic. In this cable, the transmission of data occurs in the form of light rather than the electric current, so this cable provides higher data transfer speed than other cables.

A URL (Uniform Resource Locator) is a database connection that describes the database's location on a computer network and the retrieval process. A URL is a different form of URI (Uniform Resource Identifier) although the two words are used interchangeably by many people.

A proxy server is a computer that acts as a gateway between a user's computer and the Internet. The proxy server is also called application level gateway. By this the client computer can establish indirect network connection to another network.

A firewall is a network securing software that prevents unauthorized users and dangerous elements from accessing the network. Software firewall acts as a filter for our network which prevents harmful information.

Public domain software can be modified, distributed or sold by anyone without any attention, but no one can ever own it.

In telecommunication, baud rate is a specific unit of the speed rate. It is one of the significant functions that determine the speed of the communication over the data channel.

To divide the IP network 192.168.50.0 into at least 10 equal-sized subnets, we need to find a subnet mask that provides at least 10 subnets. The subnet mask 255.255.255.240 (/28) allows for 16 subnets, each with 14 usable host addresses. This configuration meets the requirement of having at least 10 subnets. Each subnet will have 16 total addresses, of which 14 are usable, as 2 addresses are reserved for network and broadcast addresses.

An IPv6 address is 128 bits long, which has 2^128 address space.

121.12.12.248 address belongs the class A because the first octet value of this address lies between 0 and 127.

A loopback address is a special IP address whose IP address is between 127.0.0.1 to 127.255.255.255. It is reserved for loopback. It doesn't require a physical connection to a network.

A microwave link cannot be used as a medium for 802.3 ethernets, because a microwave link is a transmission network that utilizes a beam of radio waves in the microwave frequency spectrum to relay video, audio, or data between two places.

The term IANA stands for Internet Assigned Numbers Authority.

The host to host layer conforms the transport layer of the OSI model. This layer is responsible for the final correspondence and error-free distribution of data.