alleryStart learning →A school links 30 computers inside one lab to share a printer. Which network is this?
- PAN
- WAN
- LAN
- SAN
Show answer and solution
Correct answer: C. LAN
A LAN joins devices within a small area such as a school or office building.
Olympiad (Class 6) Networking and cyber safety — practice questions
Explore 53 free Networking and cyber safety questions in Olympiad (Class 6) Computer Science. Open each question or exercise to read its content, reference answers and available explanation.
Practise Networking and cyber safety with Quill →Networking and cyber safety questions and exercises with answers
Showing questions 1–30 of 53.
A school links 30 computers inside one lab to share a printer. Which network is this?Read the answer and worked solution →A phone, earbuds and a smartwatch worn by one person talk to each other. This is a:Read the answer and worked solution →Which device uses addressing information to pass packets from one network to another?Read the answer and worked solution →A hub with 8 ports gets a message from computer 1 meant for computer 2. Where does the hub send it?Read the answer and worked solution →A switch is preferred over a hub in a busy lab mainly because a switch:Read the answer and worked solution →What does a modem do to a digital signal before sending it over a telephone line?Read the answer and worked solution →Which device sits between a secure inside network and the Internet to control access?Read the answer and worked solution →In networking, a set of rules for exchanging information is called a:Read the answer and worked solution →Which part of a packet carries the source and destination addresses?Read the answer and worked solution →A long message is sent over a network with a maximum packet size. What happens to it?Read the answer and worked solution →A packet reaches a link that is busy with other traffic. What does it usually do?Read the answer and worked solution →Which cable carries data as pulses of light?Read the answer and worked solution →A cable must run beside heavy electrical machines. Which medium resists electrical interference best?Read the answer and worked solution →Why are the two wires in a twisted pair cable twisted together?Read the answer and worked solution →Which cable type is widely used for cable television systems?Read the answer and worked solution →Wi-Fi networks send data using which kind of waves?Read the answer and worked solution →Terrestrial microwave links need relay stations because they work only over:Read the answer and worked solution →In a cellular network, each geographic area is served by a:Read the answer and worked solution →Which standard family defines Wi-Fi, the common wireless radio-wave technology?Read the answer and worked solution →Each Ethernet network card has a unique address called a:Read the answer and worked solution →An Ethernet MAC address is six octets long. How many bits is that, if an octet is 8 bits?Read the answer and worked solution →In a MAC address, the first three octets identify the maker. How many octets does the maker assign itself?Read the answer and worked solution →A signal weakens along a twisted-pair Ethernet cable run of 250 m. A device that cleans and regenerates it is a:Read the answer and worked solution →Twisted-pair cable needs repeaters beyond 100 m. For a 250 m run, the least number of repeaters is:Read the answer and worked solution →The suite of protocols that is the foundation of all modern networking is also called:Read the answer and worked solution →HTTP, the web protocol, runs directly over which protocol?Read the answer and worked solution →Compared with IPv4, IPv6 mainly offers a:Read the answer and worked solution →Which service maps a memorable host name to a network address?Read the answer and worked solution →In a star network of 6 computers, the central switch fails. What happens?Read the answer and worked solution →In which layout are all nodes connected to a special central node?Read the answer and worked solution →
Worked practice questions
A phone, earbuds and a smartwatch worn by one person talk to each other. This is a:
- LAN
- CAN
- WAN
- PAN
Show answer and solution
Correct answer: D. PAN
A personal area network links devices that are close to one person.
Which device uses addressing information to pass packets from one network to another?
- Repeater
- Hub
- Router
- Modem
Show answer and solution
Correct answer: C. Router
A router forwards packets between networks by reading the address information in each packet.
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