Q. The path overhead consists of ______ bytes.

View solution

Q. In ________ APS, there are normally two lines: one working line and one protection line. Both lines are active all the time.

View solution

Q. In ______ APS, there is one working line and one protection line. The data are normally sent on the working line until it fails.

View solution

Q. In ________APS, there is only one protection line for many working lines. When a failure occurs in one of the working lines, the protection line takes control until the failed line is repaired.

View solution

Q. A control character is sent at the beginning as well as at the end of each block in the synchronous-transmission in order to

View solution

Q. Check sum is used for

View solution

Q. When you store and forward messages in B-ISDN, you are using ................. services.

View solution

Q. Which of the following signal is not standard RS-232-C signal?

View solution

Q. While transmitting odd-parity coded symbols, the number of zeros in each symbol is:

View solution

Q. When the receiver sees five consecutive incoming '1' bits followed by a '0' bit it automatically destuffs ................... in bit stuffing.

View solution

Q. If source machine sends independent frames to destination machine without having acknowledgment, this service is .................

View solution

Q. SEND and RECEIVE primitives are called as ................. primitives.

View solution

Q. CONNECT and DISCONNECT primitives are called as ..................... primitives.

View solution

Q. The end points of a transport connection are called .....................

View solution

Q. BSC stands for ..................

View solution

Q. HDLC is an acronym for ....................

View solution

Q. Sending of a IP packet from host 1 to host 2 where both are of same LAN but the packet is transferred through different intermediate LANs is called ..................

View solution

Q. In CRC there is no error if the remainder at the receiver is _____.

View solution

Q. Which of the following refers to the terms "residual error rate"?

View solution

Q. Which of the following summation operations is performed on the bits to check an error-detecting code?

View solution