1.3 Networks

Card 1 of 83 0 got it 0 still learning

Question

TapClick or press space to see the answer

Answer

All 83 cards in this set

Which of the following is an example of a LAN?: House
Which of the following is an example of a WAN?: The Internet
What is the biggest WAN?: The Internet
What does a LAN cover?: A small geographical area
What does a WAN cover?: A large geographical area
In a LAN, who owns the network equipment?: The owner of the building
In a WAN, who owns the network equipment?: A business who leases access to the network
True or False: WANs are completely wireless?: FALSE
Which of the following terms refers to a computer not connected to a network?: Stand Alone
Why might a company use a WAN?: Connect multiple sites across large distances
Which network type manages resources centrally using servers?: Client-server network with central server
What is a key advantage of centralised file storage on client-server networks?: Centralised backups and shared access
Why are client-server networks considered more reliable?: Servers being powered on continuously
Which factor often makes client-server networks more expensive?: Specialist staff and dedicated servers
How do peer-to-peer networks handle resource sharing?: Direct resource sharing between computers
Why do peer-to-peer networks become slower as more computers are added?: Workload and resource sharing by machines
Which scenario best describes most home networks?: Peer-to-peer networks
What happens if a computer providing resources in a peer-to-peer network is turned off?: Unavailable resources due to offline computer
When is a client-server network the better choice?: Need for high reliability and central management
Which network type manages resources centrally using servers?: Client-server network with central server
What is a key advantage of centralised file storage on client-server networks?: Centralised backups and shared access
Why are client-server networks considered more reliable?: Servers being powered on continuously
Which factor often makes client-server networks more expensive?: Specialist staff and dedicated servers
How do peer-to-peer networks handle resource sharing?: Direct resource sharing between computers
Why do peer-to-peer networks become slower as more computers are added?: Workload and resource sharing by machines
Which scenario best describes most home networks?: Peer-to-peer networks
What happens if a computer providing resources in a peer-to-peer network is turned off?: Unavailable resources due to offline computer
When is a client-server network the better choice?: Need for high reliability and central management
A family of four wants to share photos and a printer at home. Which network type is best?: A simple peer-to-peer network
A medium-sized office with 50 employees needs central file storage, daily backups and user logins. Which network type is appropriate?: A managed client-server network
A school needs students to log in on any lab computer and store work centrally. Which network suits this need?: A centralized client-server network
A small group of friends are sharing game files and playing together in one house for an evening. Which network is most suitable?: A quick peer-to-peer network
Which medium generally provides higher bandwidth?: Wired Ethernet cable connections
Which medium typically has lower latency?: Wired Ethernet cable connections
Up to what distance do standard Ethernet cables reliably carry data?: Roughly one hundred meters
Which statement best describes fibre-optic cable capabilities?: Extremely high bandwidth over miles
Why does WiFi often deliver lower throughput than wired connections?: More susceptible to environmental interference
What is the typical effective range for home WiFi in open spaces?: Approximately thirty to fifty meters
How do physical walls typically affect wireless signals?: They weaken signals and reduce throughput
What occurs when multiple devices broadcast on the same WiFi frequency?: Interference lowering bandwidth and range
Which household device commonly causes interference with WiFi?: Microwave ovens causing WiFi interference
What is a common consequence of a very weak wireless signal?: Devices fail to connect or get low bandwidth
Which transmission medium typically offers the highest theoretical bandwidth?: A fibre optic cable
Which statement best contrasts wired and wireless media?: Wired provides higher bandwidth and lower latency
What is the typical maximum copper Ethernet run without repeaters?: About 100 meters for copper Ethernet
For campus security cameras requiring continuous high-quality video across long distances, which cabling is most appropriate?: A fibre optic cable backbone
A graphic design studio requires constant large file transfers between desktops and a local server. Which connection is most appropriate?: A wired Ethernet connection
A busy coffee shop needs internet for many mobile customers who move around. Which network type is most suitable?: A wireless WiFi connection
What is the purpose of protocols?: To provide a standard set of rules for communication between computers
Which protocol is used to send e-mails from a computer to a mail server?: SMTP
Which protocol is an old protocol used to receive e-mail from a mail server?: POP
Which protocol is used to receive e-mails from a mail server, syncing numerous devices: IMAP
Which protocol is used to transfer files between computers and servers: FTP
Which protocol is used to request and receive web pages?: HTTP
When sending encrypted data in a web browser, which protocol would you use?: HTTPS
What is the FTP protocol used for?: Transfer files between client and server
What is an advantage of protocols being organised into layers?: Protocols in layers above and below are unaffected by changes
How many layers are there in the TCP/IP model?: 4
What is true about protocols grouped in the same layer?: They serve similar purposes
Which device in a computer provides wired or wireless network connection?: Network Interface Card
What does a NIC's speed rating primarily determine?: Maximum data rate the device can handle
What is the primary function of a network switch within a LAN?: Direct incoming data frames to specific device
Which device connects a LAN to the wider Internet?: Router that routes packets between networks
Why are routers essential to the Internet?: They forward packets between separate networks
Where is a wireless access point typically connected?: Connected into a network switch or infrastructure
What best describes a home multifunction networking device?: Device combining router, switch, and WAP
Why are unshielded Ethernet cables vulnerable in some environments?: They pick up electromagnetic interference from surroundings
Which device should you install to allow several wired desktop PCs in one room to communicate with each other?: A dedicated network switch
Which device connects a company’s LAN to the wider Internet and routes packets between networks?: A network router between networks
Which device would you add to a wired network to provide wireless access for laptops and smartphones?: A wireless access point device
Which built-in piece of hardware must a computer have to connect to a network over Ethernet or WiFi?: A network interface card
If you need very high speed and long-distance connectivity between buildings, which cable type should you choose?: A fibre optic cable
Which cable type is least affected by electromagnetic interference?: A fibre optic cable
If you want a single home device that provides Internet routing, wired ports, and WiFi, what is commonly used?: A multifunction home router device
Which of the following descriptions describes a mesh network?: There are multiple routes to connect to many of the computers on the network
Which of the following descriptions describes a star network?: It makes use of a switch as a central networking device
Which answer best describes the term “topology”?: It describes the physical layout of a network
What is a disadvantages of a star network?: Single point of failure
What is an advantage of a star network?: Easy to add new computers / devices
What is an advantage of using a mesh network?: No single point of failure
What is a disadvantage of using a mesh network?: Expensive to set-up with cables
Which of the following places would a star network be most appropriate?: School
Which of the following places would a mesh network be most appropriate?: For devices in the a smart home

1.3 Networks

Round complete