Which of the following allows devices on one network to communicate with devices on another network?
An error detecting code is which code is the remainder resulting from dividing the bits to be checked by a predetermined binary number, is known as
A 4 KHz noise less channel with one sample everper sec is used to transmit digital signals. If Delta modulation is selected, then how many bits per second are actually sent?
A communications device that combines transmissions from severalO devices into one line is a:
Business meeting and conferences can be held by linking distantly located people through a computer network. Not only the participants exchange information but are able to see each other. What is it called?
A communication network which is used by large organizations over regional, national or global area is called
An information utility can offer a user
A subdivision of main storage created by operational software is referred to as a:
On a class B network, how many subnets are available with a subnet mask of 248?
Which of the following communications lines is best suited to interactive processing applications?
Devices on one network can communicate with devices on another network via a
In OSI network architecture, the dialogue control and token management are responsibilities of
A station in a network forwards incoming packets by placing them on its shortest output queue. What routing algorithm is being used?
A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:
Which of the following data transmission media has the largest terrestrial range without the use of repeaters or other devices?
The CCITT Recommendation X.specifies three layers of communications:
Which of the following uses network address translation?
RS-449/442-A/423-A is
Eight stations are competing for the use of the shared channel using the modified Adaptive free walk protocol by Gallager. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention?
Which transmission mode is used for data communication along telephone lines?
UDP is:
The interactive transmission of data within a time sharing system may be best suited to
The main difference between synchronous and asynchronous transmission is
What frequency range is used for microwave communications, satellite and radar?
Which of the following statements is incorrect?
Information systems with common hardware, software, and network standards that provide easy access for end users and their networked computer systems. Select the best fit for answer:
Which of the following TCP/IP protocol is used for file transfer with minimal capability and minimal overhead?
An international standard, multilevel set of protocols to promote compatibility among telecommunications networks. Select the best fit for answer:
Many large organizations with their offices in different countries of the world connect their computers through telecommunication satellites and telephone lines. Such a communication network is called
What is the first octet range for a class B IP address?
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