What is the process of altering readable data into unreadable form?
Encryption is the process of altering—via software—readable data into unreadable form to prevent unauthorized access.
Is the range of frequencies that a transmission medium channel can carry in a particular period of time?
Also called “band”; range of frequencies that a transmission medium can carry in a given period of time and thus a measure of the amount of information that can be delivered.
Is a set of conventions governing the exchange of data between hardware and or software components in communication takes place is called *?
A protocol is a set of conventions governing the exchange of data between hardware and/or software components in a communication network. A communication protocol is an arrangement of rules that let two or more units of a communications system transfer information through any sort of variation of a physical quantity.
Which kind of wire channel consists of dozens or hundreds of thin strands of glass or plastic that transmits pulsating beams of light?
The core of a fiber-optic cable consists of dozens or hundreds of thin strands of glass or plastic that use light to transmit signals. Each strand, called an optical fiber, is as thin as a human hair.
What refers to the range of frequencies that can be transmitted by a telecommunications channel?
The range of frequencies that a system passes through is given by the system bandwidth.
What is the difference between the highest and the lowest frequencies on a transmission called?
Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies. It is typically measured in hertz, and depending on context, may specifically refer to passband bandwidth or baseband bandwidth.
When two or more LANs have been connected using a public network?
2. When two or more LANs have been connected using a public network a WAN or Wide Area Network is created. 3. The largest WAN on earth is the Internet.
Which is the cable medium with the highest bandwidth?
Fiber-optic cable has the highest bandwidth among any communication medium.
What is the point at which the operational control of ownership changes from the ISP to United States Cyber Command?
The demarcation point or demarc is the point at which the operational control or ownership changes from your company to a service provider. This is often at the MDF in relation to telephone connections and the CSU/DSU in regard to WAN connections.
What is the difference between LAN and WAN?
LAN is a computer network that covers a small geographic area, like a home, office, or group of buildings. WAN is a computer network that covers a broad area. For example, any network whose communications links cross-regional and metropolitan boundaries over a long distance.
What is Wi-Fi device?
Wi-Fi is the wireless technology used to connect computers, tablets, smartphones and other devices to the internet. … The device transmits a radio signal back to the router, which connects to the internet by wire or cable.
How do WANs and LANs connect to the Internet?
Router LAN and WAN Ports
In all homes and most small businesses, the WAN port connects to a high-speed modem, like a DSL or cable modem, which in turn connects the router to the Internet. … Once connected, these computers can access the Internet and other computers on the LAN, just like those that use Wi-Fi.
What is difference between router and switch?
Just as a switch connects multiple devices to create a network, a router connects multiple switches, and their respective networks, to form an even larger network. … In addition to connecting multiple networks together, the router also allows networked devices and multiple users to access the Internet.
What are the 3 types of network?
LAN, MAN, and WAN are the three major types of networks designed to operate over the area they cover.
What is the difference between PAN and man?
Answer: The significant difference between them is the geographical area they cover. When we consider the order, PAN is capable of providing network connection around a person, next comes LAN which covers a smaller area; then comes MAN; it covers an area larger than LAN & WAN is the largest of all.
Which is faster router or switch?
Routers operate at Layer 3 (Network) of the OSI model whereas Network switches operate at layer two (Data Link Layer) of the OSI model. … In various types of network environments (MAN/ WAN), the router works faster whereas Switch is faster than a Router in a LAN environment.
What is the difference between PAN and LAN?
Conceptually, the difference between a PAN and a wireless LAN is that the former tends to be centered around one person while the latter is a local area network (LAN) that is connected without wires and serving multiple users.
Does switch have IP address?
When computers are on the same IP segment, it means that the computers belong to the same network. But since the switch does not have the capability to assign IP addresses, the computers connected to it will not be able to communicate with each other. They will get an Automatic Private IP Address (APIPA).
What is difference between forwarding and routing?
What Is The Difference Between Routing And Forwarding? Routing is the process by which a network makes a forwarding table. … Forwarding, on the other hand, is the actual process of sending a data packet through the network. It uses the forwarding table that the router creates to find its starting point and ending point.
What is gateway in networking?
A gateway is a piece of networking hardware or software used in telecommunications for telecommunications networks that allows data to flow from one discrete network to another.
What is the difference between router and gateway?
A Router is a networking layer system used to manage and forward data packets to computer networks. A gateway is simply a device or hardware that acts as a “gate” between the networks. It could also be defined as a node that acts as an entry for other network nodes.