FREE COBRA Technical Skills Questions and Answers
MODEM can be defined as
A MODEM is a device that performs the function of encoding digital computer signals into analog/analogue telephone signals and vice versa. It is also known as a modulator-demodulator. MODEMs allow computers to communicate with each other over a phone line by transmitting data between digital devices over analog lines. Therefore, the correct answer is "All of the above" as all the given statements accurately describe the definition and functionality of a MODEM.
DSL stands for:
DSL stands for Digital Subscriber Line. This technology allows high-speed internet access through traditional telephone lines. It uses existing copper telephone lines to transmit digital data, providing faster internet connections compared to dial-up connections. DSL technology allows users to access the internet while making phone calls simultaneously, as it separates voice and data signals. Therefore, Digital Subscriber Line is the correct answer.
POTS stands for
POTS stands for Plain Old Telephone Service. This refers to the traditional analog telephone system that has been in use for many years. It is called "plain old" because it is a basic, straightforward telephone service that does not include advanced features or technologies. POTS is characterized by the use of copper wires for transmitting voice signals and is gradually being replaced by digital and internet-based communication systems.
ADSL has
ADSL (Asymmetric Digital Subscriber Line) is a type of internet connection that provides higher downstream speed (from the internet to the end user) compared to the upstream speed (from the end user to the internet). This means that the user can download data, stream videos, and browse the internet faster than they can upload data or send information. The asymmetry in speed is designed to cater to the typical internet usage patterns where users tend to consume more data than they produce.
Ethernet is the same as Telephone cable
Ethernet is not the same as telephone cable. Ethernet refers to a standard for connecting computers and other devices in a local area network (LAN), while telephone cable is used for transmitting voice signals over telephone lines. Ethernet cables are designed specifically for high-speed data transmission, while telephone cables are optimized for voice communication. Therefore, the statement that Ethernet is the same as telephone cable is false.
IP Address is:
An IP address serves as a unique identifier for devices connected to a network, allowing them to communicate with each other. It consists of a series of numbers separated by periods, such as 192.168.0.1. This address not only identifies the device but also provides information about its location on the internet.
USB is an abbreviation for
USB is an abbreviation for Universal Serial Bus. The Universal Serial Bus is a standard connection interface used for connecting various devices to a computer. It allows for the easy and quick transfer of data between devices such as keyboards, mice, printers, and external storage devices. The USB standard has become widely adopted due to its versatility, convenience, and compatibility with different devices and operating systems.
MAC Address is:
A MAC address, also known as a Media Access Control address, is a unique identifier assigned to network interfaces for communications on a network. It is a series of alphanumeric characters that is burned into the hardware adapters of devices such as computers, routers, and smartphones. This unique serial number helps in identifying and differentiating devices on a network.
Broadband is defined as
The answer is "A very high speed 'always-on' service connection allowing large amounts of information to be conveyed quickly, such as data, graphics files or video." This answer accurately describes broadband as a service that provides high-speed internet access that allows for the quick transmission of large amounts of data, graphics files, or video. It encompasses the other options mentioned in the question, such as a network with high bandwidth and any kind of fast internet access.
One way of connecting multiple computers in a DSL service is to use.
A router is used to connect multiple computers in a DSL service. It acts as a central hub that allows multiple devices to connect to the internet through a single DSL connection. The router receives the internet signal from the DSL modem and then distributes it to the connected devices, enabling them to access the internet simultaneously. This allows for efficient sharing of the internet connection among multiple computers in a DSL service.
In a DSL environment, Hub is
A hub in a DSL environment is a device that can be used to connect multiple computers. It acts as a central point where all the computers can be connected, allowing them to share resources and communicate with each other. The hub receives data from one computer and broadcasts it to all the other connected computers. This enables the computers to access the same network and share internet connection, files, and other resources.