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WorksheetsNetworks and Communication Quiz 3
Total questions: 70
Worksheet time: 35mins
What is a computer network?
A collection of software programs
A group of interconnected devices that share resources
A single powerful computer
A database system
Which topology connects all devices to a central switch or hub?
Bus
Ring
Star
Mesh
Which protocol suite is used for communication on the Internet?
OSI
NetBIOS
TCP/IP
Ethernet
Which protocol is responsible for delivering web pages?
FTP
DNS
HTTP
SMTP
Which layer of the TCP/IP model handles logical addressing and routing?
Application
Transport
Network
Link
What is an IP address?
A physical hardware address
A unique logical identifier for a device
A routing protocol
A network cable
Which IP version uses 32-bit addressing?
IPv6
IPv4
IPX
ARP
Which topology uses a single backbone cable?
Star
Ring
Bus
Tree
Which protocol translates domain names into IP addresses?
HTTP
FTP
DNS
SMTP
Which addressing type refers to MAC addresses?
Logical addressing
Virtual addressing
Physical addressing
Network addressing
Why is star topology easier to troubleshoot than bus topology?
It uses fewer cables
Each device has an independent connection
It has no central device
Data travels in one direction
Why is mesh topology considered highly fault tolerant?
It uses a central hub
It has multiple redundant paths
It uses wireless links
It uses fewer devices
Why is TCP described as a reliable protocol?
It sends data faster
It guarantees delivery and order
It uses less bandwidth
It avoids acknowledgments
What is the main function of DNS in networking?
Encrypt data
Transfer files
Convert domain names to IP addresses
Route packets
Why is UDP preferred for video streaming?
It guarantees delivery
It retransmits lost packets
It prioritizes speed over reliability
It encrypts data
Why is IPv6 needed in modern networks?
It is faster than IPv4
It replaces TCP
It provides a larger address space
It eliminates routing
What is the purpose of ARP?
Route packets between networks
Map IP addresses to MAC addresses
Encrypt data
Resolve domain names
Why is tree topology suitable for campus networks?
It uses the least cabling
It supports hierarchical expansion
It eliminates backbone failure
It requires no switches
A home network requiring easy maintenance should use which topology?
Bus
Ring
Star
Mesh
Which protocol is used when sending an email?
HTTP
FTP
SMTP
DNS
A company wants high redundancy in its WAN. Which topology is best?
Bus
Ring
Star
Mesh
Which protocol is most suitable for online gaming?
TCP
UDP
FTP
SMTP
A device with IP address 192.168.1.10 belongs to which IP version?
IPv6
IPv4
ARP
ICMP
Which protocol is used to test connectivity between devices?
ARP
ICMP
DNS
FTP
Which topology should be chosen if minimizing cabling cost is the priority?
Mesh
Star
Tree
Bus
Which protocol ensures reliable data transfer for online banking?
UDP
ICMP
TCP
ARP
Which IP address class is typically used for small networks?
Class A
Class B
Class C
Class D
Which device uses IP addresses to forward packets?
Switch
Hub
Router
Repeater
Why does bus topology perform poorly as more devices are added?
Increased routing loops
Increased collisions on the backbone
Central hub overload
Lack of IP addresses
Which topology has a single point of failure at the central device?
Bus
Ring
Star
Mesh
How do TCP and IP work together during data transmission?
TCP routes packets, IP ensures reliability
IP encrypts data, TCP decrypts it
TCP ensures reliable delivery, IP handles routing
Both perform the same function
Why is mesh topology expensive to implement?
Requires many IP addresses
Requires extensive cabling and connections
Uses outdated protocols
Requires fewer devices
Which routing protocol uses hop count as a metric?
OSPF
BGP
RIP
ARP
Why is MAC addressing not used for routing across networks?
It is slower
It changes frequently
It is only valid within local networks
It requires DNS
Which topology best matches the description “star of stars”?
Mesh
Tree
Ring
Bus
Why is BGP critical to Internet communication?
It assigns IP addresses
It routes traffic between autonomous systems
It encrypts web traffic
It resolves domain names
Which protocol belongs to the Link Layer?
IP
TCP
Ethernet
HTTP
Which factor MOST influences topology selection for mission-critical systems?
Cost
Fault tolerance
Simplicity
Ease of installation
A network design combining star topology at access level and mesh at the core is an example of:
Ring
Tree
Hybrid
Bus
Which combination best supports scalability and reliability in enterprises?
Bus + Ring
Star + Tree
Bus + Star
Ring + Bus
Designing a network with multiple paths between routers primarily improves:
Cost efficiency
Fault tolerance
Simplicity
Addressing
Which protocol stack delivers a webpage from server to client?
FTP–UDP–ARP
HTTP–TCP–IP
DNS–ICMP–IP
SMTP–UDP–IP
Combining TCP for reliability and UDP for speed in one network shows:
Protocol redundancy
Protocol synthesis
Address translation
Routing conflict
A campus network with departmental segmentation and shared backbone uses which topology?
Bus
Ring
Tree
Mesh
Which protocol set works together from application down to physical delivery?
DNS only
TCP/IP layered protocols
Routing protocols only
MAC protocols only
Which topology is MOST appropriate for a hospital network and why?
Bus – low cost
Ring – predictable flow
Mesh – high fault tolerance
Star – simple design
Why is UDP NOT suitable for file downloads?
It is slow
It lacks reliability and retransmission
It uses encryption
It consumes too much bandwidth
Which IP version is better suited for future network growth?
IPv4
IPv6
ARP
ICMP
Which topology should be avoided in a rapidly expanding organization?
Star
Tree
Hybrid
Bus
Which protocol selection best ensures secure and reliable web communication?
HTTP + UDP
HTTPS + TCP
FTP + IP
DNS + ICMP
Which protocol is used for secure data transmission over the Internet?
HTTP
HTTPS
FTP
SMTP
What is the primary function of a router in a network?
To connect devices within a local network
To forward data packets between networks
To amplify signals
To store data
Which addressing type is used for identifying devices on a network?
MAC addressing
Physical addressing
Logical addressing
IP addressing
What is the primary purpose of a firewall in a network?
To increase network speed
To filter incoming and outgoing traffic
To connect different networks
To store data securely
Which device is responsible for connecting multiple networks and directing data between them?
Hub
Bridge
Router
Switch
What does NAT stand for in networking?
Network Allocation Table
Network Application Transfer
Network Access Technology
Network Address Translation
Which device is primarily responsible for connecting different networks?
Hub
Switch
Router
Bridge
What is the main purpose of a subnet mask?
To encrypt data packets
To identify the network and host portions of an IP address
To assign IP addresses dynamically
To filter network traffic
Which protocol is used for secure file transfer over the internet?
FTP
SFTP
HTTP
SMTP
What is the primary purpose of a firewall in a network?
To provide wireless connectivity
To connect multiple networks
To filter incoming and outgoing traffic
To assign IP addresses
Which layer of the OSI model is responsible for end-to-end communication?
Transport
Application
Data Link
Network
What is the main advantage of using a VPN?
Reduced latency
Increased bandwidth
Enhanced security and privacy
Faster internet speeds
What is the primary role of a subnet mask in networking?
To encrypt data
To define the network and host portions of an IP address
To assign MAC addresses
To route packets between networks
Which protocol is used for secure data transmission over the Internet?
HTTP
FTP
SMTP
HTTPS
What is the main function of a DHCP server?
To assign IP addresses to devices on a network
To filter network traffic
To provide wireless access
To connect different networks
What is the primary function of the ARP protocol?
To assign IP addresses
To encrypt data packets
To manage network traffic
To resolve IP addresses to MAC addresses
Which layer of the OSI model is responsible for end-to-end communication?
Network
Transport
Data Link
Application
What is the main advantage of using a mesh network topology?
Simple installation
Lower cost
Less cabling required
High redundancy and reliability
What is the main purpose of the Domain Name System (DNS)?
To manage network traffic
To secure data transmission
To translate domain names into IP addresses
To assign IP addresses to devices
What is the function of a switch in a network?
To provide wireless connectivity
To amplify network signals
To filter and forward data to specific devices
To connect multiple networks
