Which of the following is a voiceband channel?

Error detection at a data link level is achieved by

Transmission of computerised data from one location to another is called

Compared to analog signals, digital signals

Which of the following technique is used for encapsulation?

Which layer of OSI determines the interface of the system with the user?

Messages from one computer terminal can be sent to another by using data networks. The message to be sent is converted to an electronic digital signal, transmitted via a cable, telephone or satellite and then converted back again at the receiving end. What is this system of sending messages called?

HDLC (High-level Data Link Control) is

A devices that links two homogeneous packet-broadcast local networks, is

Identify the odd term amongst the following group:

On a class C network with a subnet mask ofhow many subnets are available?

Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.

MAC is

A required characteristic of an online real-time system is:

The transport layer protocol is connectionless.

Which of the following specifies the network address and host address of the computer?

For connecting modem, a computer must be equipped with a port that conforms to the RS-standard of the Electronic Industries Association of America. What do the letters 'RS' stand for?

Which of the following characteristics is not true of NetBEUI?

How many digits of the Network User Address are known as the DNIC (Data Network Identification Code)?

Which of the following is the address of the router?

Because the configuration infor-mation for a DHCP client is received dynamically, you must use which utility to read the current configuration to verify the settings?

The slowest transmission speeds are those of

The first step in troubleshooting many problems is to verify which of the following?

Modulation is the process of

When the computer provides the manager with a multiple choice of possible answers, the prompting technique is

You are working with three networks that have the network IDs 192.168.5.192.168.6.and 192.168.7.What subnet mask can you use to combine these addresses into one?

The transfer of data from a CPU to peripheral devices of a computer is achieved through

Which of the following file retrieval methods use hypermedia?

A hard copy would be prepared on a

A decrease in magnitude of current, voltage, a power of a signal in transmission between points, is known as