WorksheetsChapter 1 Introduction to networks
Total questions: 67
Worksheet time: 1hrs 26mins
What is a network?
a global computer network providing a variety of information a
It's when one or two devices connected to share information
It's a protocol that is shared with more than one devices to share information to one another
None of the above
It's a programs which two machines need to agree to share before sharing data
The following picture is an example of a ... ?
Start topology
Ring topology
Round topology
None of the above
What is a internet ?
It's a programs that gives you information about everything
It's a global network that provides services to the applications and websites searched for
It's a a global network of networks connected to each other
T or F : an example of a network device is a router
True
False
A chunk of forwarded data is
Protocal
Packet Switches
Infrastructure
Network
Internet
What is a medium ?
network performance is about response time - how fast a message can be sent or how quickly a document can be retrieved
device for connecting computers and other network capable devices together to form a network
It's a communication channels used to interconnect nodes on a computer network, it can be wired or wireless
what are the types of networks?
WAN
LAN
OAN
Both WAN and LAN
Not OAN and LAN, but it's only WAN
What does LAN stands for ?
LOCAL AREA NODE
LOCAL ACCESS NETWORK
LOCAL AREA NETWORK
LOCAL ACCESS NODE
What does WAN means ?
Wild Area Network
Wild Access Node
Wild Area Node
Wild Access Network
what is a LAN?
It's a local Area Network that has a small and limited network and has a short distance range
It's a local Area Network that has a short network distance only
It's a local Access Network that has a small and limited network that has a short distance range
It's a local Area Network that has a long distance and has no limited network
it covers a large geographical area. most WANs are made from several LANs connected together.
WAN means ?
A. It covers a large geographical area. most of them are made from several LANs connected together.
B . It covers a large geographical area. most WANs are made from several OAN'S connected together.
C . It covers a small area such as one site or building, eg a school or a college
D . None of the above
Both A & B
What does Infrastructure mean ?
It provides connection to other devices
It gives the network between several devices that we need and has intermediate devices like a router
None of the above
A network constants of the following :
- Edge & host devices
- Infrastructure
- Edge & host devices
- Infrastructure
- Medium
- Edge & host devices
- Packet switches
None of the above
The picture is example of a ?
hint : it can be fiber , copper , satellite and radio
Network
Infrastructure
Communication Links
What is a host ?
Edge
End system
data
Netwrok
What is a edge ?
A data of information used in a computer
A running software that provides apps
A running network apps at the internet , it will receive the messages
What are the risks of a network ?
Redundant technology
Cyber Attacks
Denial of service
Expensive to manage and maintains
All of the above
An example of a transmission rate of communication link is
Edge
Bandwidth
Network
Internet
Clients and servers network can run network operating systems that can manage users , groups , security and applications on the network ?
False
Ture
it's is a measure of the amount of data that the medium can transfer over a given period of time. each transmission medium has is different.
bandwidth
LAN
Infrastructure
All computers have equal status , where no computer has control over the network. This is a ... ?
Client & server
Peer - to peer (P2P)
What are the advantages of P2P networks ?
low cost
easy to configure
Has full accessibility computer
Draw a Bus topology
What is protocol ?
It's a program which two machines need to agree to be able to share data. Like Wifi, Skype, HTTP
It's a program that is every where , which can gives you limited data
It'a a program that can't control sending and receiving messages
What are the internet standards do ?
Request for comments
Internet Engineering task force
They have Internet Engineering task force and request for comments
They have Internet Engineering task force and request for commands
None of the above
T or F , Infrastructure is a back bone of the internet
Ture
False
what is API ?
It's a application programming interface, that provides connection between computer
It's a application programming infrastructure, that provides connection between computer
What are the benefits of a network ?
Optimisation
Storage Space
save your money
Secure
All of the above
What is a Ring topology ? Explain it and list it's chartacterstces
How can we classify a network by ?
Network Size
Topology
Management methods
Transmission media
All the above
What are the topology of a network?
BUS
STAR
RING
What are switches ?
Device for connecting computers and other networks together to share information
Device for connecting computers and other network capable devices together to form a network.
What is a Bus topology ? Explain it and list it's chartacterstces
What are the disadvantages of peer- to-peer
Duplication of resources
Can't handle the uneven loading
Uphold security policy
Has full accessibility of the computer
peer to peer can be appropriate when it have : 10 users max / Security is not a issue/ Limited growth in the foreseeable future and it can have a long distance range
False
Ture
Draw a Ring topology
what does Clients and servers network mean ?
computer that request network resources or services and manage the network server and resources
computer that consists of 2 or more computers connected together
collection of devices
a computer that manage the network server and resources only
What does client and server do ?
They request , provide and mange the resources and services to the network. In addition, a server had more power, hard disk and memory
only mange the resources and services to the network and memory
what are the adv and disav of client and a server network ?
Draw a Star topology
What is a Star topology ? Explain it and list it's chartacterstces
what are 3 types of access networks ??
T or F : A symmetric network has a single route for incoming and outgoing network traffic
Ture
False
T or F : An asymmetric internet connection means that the data speed and file transfer rate on your network is different in each direction.
False
True
A access network is a shared cable that has distribution networks
Ture
False
What does DSL mean ?
Digital Subscriber line
Digital screen Line
Digital Subscriber led
what type of access network is the Hybrid Fiber Coax ??
Cable based access network
Digital subscriber line
Home network
T or F : DSL is a telephone line that needs a central access office ?
Ture
False
T or F : DSL are asymmetric lines ?
Ture
False
WHAT IS THE INTERNET? (Select one or more of the answers below that are correct)
A collection of hardware and software components executing protocols that define the format and the order of messages exchanged between two or more communicating entities, as well as the actions taken on the transmission and/or receipt of a message or other event.
A "network of networks".
A platform for building network applications.
A collection of billions of computing devices, and packet switches interconnected by links.
A place I go for information, entertainment, and to communicate with people
WHAT IS A EXAMPLE OF A PROTOCOL?(Select one or more answers below)
Two people introducing themselves to each other.
A person reading a book.
A student raising her/his hand to ask a really insightful question, followed by the teaching acknowledging the student, listening carefully to the question, and responding with a clear, insightful answer. And then thanking the student for the question, since teachers love to get questions.
One person asking, and getting, the time to/from another person.
A person sleeping
what are the two types of wireless access network ?
A. Wide area cellular access network
B . Wireless local area access network
C . Both A & B
D . None of the above
Explain what is a star topology ?
An example of a Wireless local Area Network is building Wifi ?
False
Ture
An example of a Wide area cellular access network is 3G /4G / G5 ?
False
Ture
connecting a mix of switches and routers to hand the large number of devices to networks is ?
Enterprise network
Home network
cable networks
DSL
What is Packet-switching and what does queueing means ?
what happens when queueing occur ?
What is ISP stand for & what does it do ? ?
Which of the characteristics below are associated with the technique of circuit switching?
This technique was the basis for the telephone call switching during the 20th century and into the beginning of this current century.
Data may be queued before being transmitted due to other user’s data that’s also queueing for transmission.
Frequency Division Multiplexing (FDM) and Time Division Multiplexing (TDM) are two approaches for implementing this technique.
Reserves resources needed for a call from source to destination.
Congestion loss and variable end-end delays are possible with this technique.
Which of the characteristics below are associated with the technique of packet switching? Select all correct answers.
Resources are used on demand, not reserved in advance.
This technique is used in the Internet.
Reserves resources needed for a call from source to destination.
Data may be queued before being transmitted due to other user’s data that’s also queueing for transmission.
Congestion loss and variable end-end delays are possible with this technique.
When we say that the Internet is a “network of networks,” we mean? Check all that apply
The Internet is made up of access networks at the edge, tier-1 networks at the core, and interconnected regional and content provider networks as well.
The Internet is the largest network ever built.
The Internet is the fastest network ever built.
The Internet is made up of a lot of different networks that are interconnected to each other.
Explain what is a ring topology ?
The OSI (Open system Interconnection ) model is composed of 6 ordered layers ?
Ture
False
What are the OSI layers ?
Application / persentation/ Session/ Network/ Data Link
Persentation/ transport /Network/ Data Link/ physical
Application / persentation/ Session/ transport /Network/ Data Link/ physical
Network/ Data Link/ physical/ persentation/ Session/
What are the internet architecture layer? (More than 1 correct answer)
link
application
transport
network
physical
Explain what is a bus topology ?
What are the two types of HTTP ? Explain each one .
