In communication satellite, multiple repeaters are known as transponders stations modulator detector None of these TRUE ANSWER : ? YOUR ANSWER : ?
What PPP protocol provides dynamic addressing, authentication, and multilink? HDLC LCP NCP X.25 TRUE ANSWER : ? YOUR ANSWER : ?
In CRC there is no error if the remainder at the receiver is _____. the quotient at the sender nonzero equal to the remainder at the sender None of these zero TRUE ANSWER : ? YOUR ANSWER : ?
What is the maximum number of entries in the HOSTS file? Unlimited 255 8 None of these 500 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following files is used for NetBIOS name resolution? LMHOSTS HOSTS FQDN ARP None of these TRUE ANSWER : ? YOUR ANSWER : ?
What is the name given to the exchange of control signals which is necessary for establishing a connection between a modem and a computer at one end of a line and another modem and computer at the other end? Modem options Protocol None of these Duplexing Handshaking TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following communications lines is best suited to interactive processing applications? mixed band channels None of these full-duplex lines simplex lines narrowband channels TRUE ANSWER : ? YOUR ANSWER : ?
The probability that a single bit will be in error on a typical public telephone line using 4800 bps modem is 10 to the power -3. If no error detection mechanism is used, the residual error rate for a communication line using 9-bit frames is approximately equal to 0.003 0.009 None of these 0.991 0.999 TRUE ANSWER : ? YOUR ANSWER : ?
A band is always equivalent to a bit None of these a byte 100 bits 16 bits TRUE ANSWER : ? YOUR ANSWER : ?