With an IP address starting atyou currently havesubnets. What subnet mask should you use to maximize the number of available hosts?
The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?
Which of the following condition is used to transmit two packets over a medium at the same time?
The data-link layer, in reference to the OSI model, specifies
What function does a serial interface perform in data communication?
A smart modem can dial, hang up and answer incoming calls automatically. Can you tell who provides the appropriate instruction to the modem for this purpose?
What is the minimum number of wires required for sending data over a serial communications links?
Videotex is a combination of
The core diameter of a single-mode fibers is about
Most networks are connected to other local area or wide area networks. Select the best fit for answer:
How many pairs of stations can simultaneously communicate on Ethernet LAN?
Which of the following is an important characteristic of LAN?
The most flexibility in how devices are wired together is provided by
The systematic access of small computers in a distributed data processing system is referred to as:
The process of converting analog signals into digital signals so they can be processed by a receiving computer is referred to as:
One important characteristic of the hub architecture of ARC-net is
Working of the WAN generally involves
What does the acronym ISDN stand for?
A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length.
Which of the following allows a simple email service and is responsible for moving messages from one mail server to another?
When a group of computers is connected together in a small area without the help of telephone lines, it is called
A form of modulation In which the amplitude of a carrier wave is varied in accordance with some characteristic of the modulating signal, is known as
CSMA (Carrier Sense Multiple Access) is
Communication circuits that transmit data in both directions but not at the same time are operating in
Which of the following communications modes support two-way traffic but in only one direction of a time?
Which of the following TCP/IP internet protocol a diskless machine uses to obtain its IP address from a server?
You need to determine whether IP information has been assigned to your Windows NT. Which utility should you use?
IEEE projectdivides the data link layer into an upper _____ sublayer and a lower _____ sublayer.
In cyclic redundancy checking, the divisor is _____ the CRC.
Which of the following frequency ranges is used for AM radio transmission?