49901. The communication mode that supports data in both directions at the same time is
49902. Which of the following program is used to copy files to or from another UNIX timesharing system over a single link?
49903. One important characteristic of the hub architecture of ARC-net is
49904. The basic Ethernet design does not provide
49905. Phase shift keying (psk) method is used to modulate digital signals at 9600 bps using 16 levels. Find the line signaling speed (i.e., modulation rate)
49906. You are in the process of analyzing a problem that requires you to collect and store TCP/IP Packets. Which of the following utilities is best suited for this purpose?
49907. A software that allows a personal computer to pretend it as a terminal is
49908. What is the name of the network topology in which there are bi-directional links between each possible node?
49909. What is the main purpose of a data link content monitor?
49910. Synchronous protocols
49911. To set up a bulletin board system you need
49912. Videotex is a combination of
49913. Which of the following frequency ranges is used for AM radio transmission?
49914. Baseband is
49915. A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent?
49916. X.21 is
49917. What is the minimum number of wires required for sending data over a serial communications links?
49918. In cyclic redundancy checking, the divisor is _____ the CRC.
49919. Which command-line tool is included with every Microsoft TCP/IP client?
49920. If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _____.
49921. An error-detecting code inserted as a field in a block of data to be transmitted is known as
49922. Number of bits per symbol used in Baudot code is
49923. Working of the WAN generally involves
49924. What does the acronym ISDN stand for?
49925. Which of the following services dynamically resolves NetBIOS-to-IP resolution?
49926. An example of a medium-speed, switched communications service is
49927. The load flow analysis algorithm having the least rate of convergence is:
49928. A computer that handles resource sharing and network management in a local area network. Select the best fit for answer:
49929. Repeaters are often used on an 802.3 network to help strengthen the signals being transmitted. As with the length of segments and the number of segments, a limit exists as to how many repeaters can be used between any two nodes. What is the maximum number of repeaters that can be used?
49930. How much power (roughly) a light-emitting diode can couple into an optical fiber?
49931. A modem that is attached to the telephone system by jamming the phone's handset into two flexible receptacles in the coupler?
49932. With telecommunications and a personal computer you can
49933. The Opposition to the flow of current in a conductor can increase in alternating circuits compared to dc circuits due to:
49934. What does 224 translate to in binary?
49935. What can cause a problem with communication with a client by name but not by IP address?
49936. What is meant by a flat line or Infinite line?
49937. What is the term used to describe addresses available on a DHCP server?
49938. Which of the following signals is not standard RS - 232-C signal?
49939. What is the default subnet mask for a class B network?
49940. Which one among the following is a method for equalizing the potential across the various units of a string insulator?
49941. In CRC the quotient at the sender
49942. How many pairs of stations can simultaneously communicate on Ethernet LAN?
49943. The OCR reading unit attached to a POS terminal is called a
49944. A protocol is a set of rules governing a time sequence of events that must take place
49945. The coming together of three technologies i.e. microelectronics, computing and communications has ushered in
49946. Terminals are used to
49947. Sales persons and other employees of the company who spend much of their time away from their offices but keep in touch with their company's microcomputers or main frame computers over telephone lines are called
49948. What is the standard protocol for network management features?
49949. The application layer of a network
49950. Brad is in charge of a small network and wants to make it simple but secure. The users want to have full control over their data and still be able to share data with the rest of the office. The networking knowledge of the office staff is excellent. Which network(s) would be the best to set up?
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