In a Star Topology, all the devices are connected to a central switch or server that controls the network.

In a Star Topology, all the devices are connected to a central motherboard that controls the network.

A Star network may be wired or wireless.

+ IF a device fails or a cable is disconnected the rest of the network is unaffected.

+ Simple to add more devices to the network, since each device is connected to the switch using a separate cable.

+ Tends to have better performance that other network layouts. Data goes straight to the central device so all devices can transmit data at the same time.

+ Very few data collisions on a ________ network compared with other network topologies (layouts)

-in wired networks, every device needs a cable to connect to the central switch or server. This can be expensive, e.g. for an office building with 50 terminals.

-the switch itself is also an expensive piece of hardware.

-if there is a problem with the switch or server then the whole network is affected.

-the max number of possible connections on the network is determined by the switch - if you need more, you might need to buy a new one.

In a Bus Topology ALL devices are connected to a single cable.

In a Bus Topology SOME devices are connected to a multiple cables.

Bus Topologies use a single backbone cable, called a bus, to connect all the devices.

Two terminators are placed at the ends of the bus to stop data reflecting back along the bus. Without the terminators, reflecting signals would cause interference and potentially make the network unusable.

+ Network is unaffected if a device (computer) fails.

+ Are not dependent on a central switch working to keep the whole network running.

+ Relatively cheap to set up when compared with other topologies.

As total length of wiring needed is much less, and the hardware you need(the central cable and terminators) is cheaper than switches, both to buy and maintain.

-Data collisions are common on a ____ network. When there is a data collision the data much be resent, which slows the network down.

-The more devices you add to the network, the more likely data collisions are. Meaning this topology is no good for larger networks.

-To try and avoid data collisions, devices must wait for the bus cable to be available before they can send any data, this can slow the network down.

-if the bus cable gets broken, it splits the network into separate parts.Since the separated networks don't have terminators at both ends of the bus. There will be a lot of reflected signals which can shut down the entire network.

Which is faster generally?

Which is easier to add new devices to the network?

Which transmits data using a central hub/switch?

Which is basically a backbone cable and 2 terminators at either end?

Which is better for larger networks?

What network topology is this?

What network topology is this ?

What network topology is this ?

A computer network is a system of:

Which one of the following terms refer to the most popular LAN technology

Which one of the following is a typical example of a web address?

Which one of the following terms refer to wireless radio communication?

A device that is used to connect a number of LANs is –

Bluetooth is an example of __________

A __________ is a device that forwards packets between networks by processing the routing information included in the packet.

What is the network device that amplifies and restores signals for long distance transmission.

The full form of word MAC in MAC address is

Data communication system within a building or campus is________

Group of devices connected with one an other

Which of the following does a computer need to connect to a network or other computer devices?

A web host is in the business of....

network designed for a town or city

spans a large geographic area, such as a state, province or country. WANs often connect multiple smaller networks, such as local area networks (LANs) or metro area networks (MANs).

supplies networking capability to a group of computers in close proximity to each other such as in an office building, a school, or a home

What is Networking?

provides wireless network communication over short distances using radio or infrared signals instead of traditional network cabling.

computer network organized around an individual person. Personal area networks typically involve a mobile computer, a cell phone and/or a handheld computing device such as a PDA.

a device used to connect a single computer or router to a DSL phone line, in order to use an ADSL service.

a small hardware device that joins multiple computers together within one local area network (LAN).

What does ISO stand for?

What does OSI stand for?

The _______ layer helps you to define the electrical and physical specifications of the data connection.

The _______ layer provides the functional and procedural means of transferring variable length data sequences from one node to another connected in “different networks”.

_______ layer corrects errors which can occur at the physical layer. The layer allows you to define the protocol to establish and terminates a connection between two connected network devices.

The ______ layer builds on the network layer to provide data transport from a process on a source machine to a process on a destination machine.

_______ layer interacts with an application program, which is the highest level of OSI model.

An _______ layer is a second layer of TCP/IP layes of the TCP/IP model. It is also known as a network layer.

_______ layer interacts with an application program, which is the highest level of OSI model.

_______ Layer controls the dialogues between computers.

_____ are rules that govern a communication exchange

The ______ is the physical path over which a message travels

Frequency of failure and network recovery time after a failure are measures of the ____of a network

The performance of a data communications network depends on ____

Viruses are a network ____ issue

Which agency created standards for telephone communications and for network interfaces and public networks?

The information to be communicated in a data communication system is the ____

_____ is the division of one task among multiple computers

If a protocol specifies that data should be sent at 100 Mbps, this is a ___ issue.

When a protocol specifies that the address of the sender must occupy the first four bytes of a message, this is a ___ issue.

Which topology requires a central controller or hub?

Which topology requires a multipoint connection?

Communication between a computer and a keyboard involves ____

In a network with 25 computers, which topology would require the most extensive cabling?

A tree topology is a variation of a ___ topology.

A television broadcast is an example of ____transmission

In a ____ topology, if there are n devices in a network, each device has a n - 1 ports for cables

A ___ connection provides a dedicated link between two devices

In a _____ connection, more than two devices can share a single link

In _____ transmission, the channel capacity is shared by both communicating devices at all times

Duwi Publishing, with headquarters in Manila and branch offices in Lipa City and throughout South-East Asia, China and the USA, is probably connected by a _______.

Keeler Plumbing has a network consisting of two workstations and one printer. This is most probably a ______

Which topology features a point-to-point configuration?

In a ___ the link, the only traffic is between the two connected devices.

In a mesh topology, the relationship between the device and another is _____

A cable break in a _______ topology stops all transmission

A network that contains multiple hubs is most likely configured in a ________ topology

Security and privacy are less of an issue for devices in a _______ topology.

The _____ model shows how the network functions of a computer ought to be organized

The OSI model consists of ______ layers

A Piece of Icon or Image on a Web Page associated with another Webpage is called

Dynamic Web Page generates on demand by a Program or a Request from Browser

URL stands for

Web Cookie is a Small Piece of Data sent from a Website & Stored in User’s Web Browser while a User is Browsing a Website

An Alternative of Javascript on Windows Platform is

Document Object Model (DOM) is a convention for representing & interacting with Objects in HTML Documents

AJAX stands for

Multiple Object cab be sent over a TCP Connection Between Client & Server in Persistent HTTP.

HTTP is ________ Protocol.

HTTP Client Requests by establishing a __________ connection to a particular Port on the Server.

In HTTP Pipelining,multiple HTTP requests are sent on a Single TCP Connection without waiting for the corresponding responses

In Which Mode FTP, the Client initiates both the Control & Data Connections.

The File Transfer Protocol is built on

In File Transfer Protocol, Data Transfer can be done in

Ethernet Frame Consists Of MAC Address

MAC Address is of

Autonegotiation is a procedure by which Two connected

devices choose Common Transmission Parameters

Ethernet In Metropolitan Area

Network (MAN) Can Be Used As

The Function Of DSLAM Is

Starband Provides

ONT Is Connected To Splitter using

Multiplexing Is Used In _______

If there are N Signal Sources of same Data Rate than TDM Link Has _______ Slots

If Link Transmits 4000frames per second,& Each Slot Has 8 Bits,The Transmission Rate of Circuit This TDM is

The State When Dedicated Signals are Idle is called as Silent Period

In TDM, Slots are further divided into

Physical or Logical Arrangement of Network is

A Local Telephone Network is an example of a Packet Switched Network

Most Packet Switches use this principle of Store & Forward

Methods to move Data through a Network of Links & Switches