Q.1
Which of the following statement is correct?
Q.2
What does 224 translate to in binary?
Q.3
Which of the following services dynamically resolves NetBIOS-to-IP resolution?
Q.4
An example of a medium-speed, switched communications service is
Q.5
A devices that links two homogeneous packet-broadcast local networks, is
Q.6
A computer that handles resource sharing and network management in a local area network. Select the best fit for answer:
Q.7
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?
Q.8
If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _____.
Q.9
An error-detecting code inserted as a field in a block of data to be transmitted is known as
Q.10
Number of bits per symbol used in Baudot code is
Q.11
Working of the WAN generally involves
Q.12
What does the acronym ISDN stand for?
Q.13
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?
Q.14
X.21 is
Q.15
What is the minimum number of wires required for sending data over a serial communications links?
Q.16
In cyclic redundancy checking, the divisor is _____ the CRC.
Q.17
Which command-line tool is included with every Microsoft TCP/IP client?
Q.18
Synchronous protocols
Q.19
To set up a bulletin board system you need
Q.20
Videotex is a combination of
Q.21
Which of the following frequency ranges is used for AM radio transmission?
Q.22
Baseband is
Q.23
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)
Q.24
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?
Q.25
A software that allows a personal computer to pretend it as a terminal is
Q.26
What is the name of the network topology in which there are bi-directional links between each possible node?
Q.27
What is the main purpose of a data link content monitor?
Q.28
What is the maximum number of entries in the HOSTS file?
Q.29
The communication mode that supports data in both directions at the same time is
Q.30
Which of the following program is used to copy files to or from another UNIX timesharing system over a single link?
0 h : 0 m : 1 s