A machine that connects two or more e-mail systems and transfers mail messages among them is known as

Which data communication method(s) is/are used to send data over a serial communication link?

What is minimum number of wires needed to send data over a serial communication link layer?

Compared to analog signals, digital signals

The cheapest modem can transmit

A device that can convert digital signals to analog signals is

If you get both local and remote echoes, every character you type will appear on the screen

To avoid transmission errors, a check figure is calculated by

The slowest transmission speeds are those of

Much of the flexibility in how devices are wired together is provided by

A network that requires human intervention to route signals is called

Devices on one network can communicate with devices on another network via a

T-switch is used to

Which of the following divides the high speed signals into frequency bands?

Software that allows a personal computer to pretend it as a terminal is

To connect a computer with a device in the same room, you might be likely to use

All of the parts in a computer talk to each other by sending

The communication mode that supports two-way traffic but only in one direction at a time, is

Which of the following allows devices on one network to communicate with devices on another network?

The communication mode that supports data in both direction at the same time, is

A distributed network configuration in which all data/information pass through a central computer, is

Which layer of ISO model is responsible for creating and recognizing frame boundaries?

A 6 MHz channel is used by a digital signaling system utilizing 4 level signals. What is the maximum possible transmission rate?

4 bits are used for packet sequence numbering in a sliding window protocol used in a computer network. What is the maximum window size?

If digital data rate of 9600 bps is encoded using 8-level phase shift keying method, the modulation rate is

The path or channel over which information moves from one location to another location is called a

Which of the following is/are parameter(s) that must be set in your software & modem before you can begin communications?

The simultaneous transmission of data to a number of stations is known as

Which of the following methods provides dedicated communication channel between two stations?

The physical path that is used for sending information is called

An error detecting code, in which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as

The 32 bit internet address 10000 00310 00003 41110 will be written in dotted notation as

Which of the following protocols is used by a diskless machine to obtain its IP address from a server?

Which of the following protocols is used for transferring files from one machine to another?

Which of the following TCP/IP protocols is used for file transfer with minimal capability and minimal overhead?

Which of the following protocols is used for transferring e-mail messages from one machine to another?

Working of WAN generally includes

Which of the following devices copies electronic signals from one ethernet to another?

What is the suggested maximum physical receive packet size for ethernet?

What is the default maximum packet size for 16 MB Token Ring Network?

A modem that is attached to the telephone system by jamming the phone's handset into 2 flexible receptacles in the coupler, is

Number of circuits required for the connection of equipments at four location to each other, is

The X.25 standard specifies a

How many OSI layers does X.25 standard cover?

Protocol converters

The main purpose of data link content monitor is to

Start and stop bits do not contain an information, but are used in serial communication for

Full capability dialed backup of a multipoint full-duplex 4800 bps private line having 4 remote drops requires

FDM devices can operate