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WorksheetsNE-1_Final Exam
Total questions: 60
Worksheet time: 56mins
Which device operates at the Network Layer (Layer 3) of the OSI model?
Hub
Switch
Router
Repeater
What does IP stand for?
Internet Protocol
Internal Process
Information Packet
Interface Program
Which topology connects all devices to a single central cable?
Star
Ring
Bus
Mesh
Which protocol is used to transfer files over the Internet?
HTTP
FTP
SMTP
SNMP
What is the main function of a switch?
Route packets
Amplify signals
Forward frames based on MAC addresses
Convert analog to digital
Which layer of OSI model is responsible for encryption and compression?
Session
Presentation
Transport
Application
Which IP address class supports the largest number of hosts?
Class A
Class B
Class C
Class D
What protocol automatically assigns IP addresses to devices?
DNS
DHCP
ARP
ICMP
Which cable type is most commonly used in Ethernet LANs?
Coaxial
Fiber optic
Twisted pair
Serial
What does LAN stand for?
Large Area Network
Logical Area Network
Local Area Network
Long Access Network
Which wireless technology is expected to succeed 5G in the future?
Wi-Fi 7
LTE
6G
Bluetooth
Which technology allows networks to automatically detect and fix problems?
VPN
AI-driven networking
NAT
Firewall
What is the main goal of Software-Defined Networking (SDN)?
Increase hardware cost
Centralized and programmable network control
Replace IP addressing
Eliminate switches
Edge computing mainly helps to:
Increase latency
Reduce bandwidth
Process data closer to users
Replace cloud computing
Which future network solution supports billions of IoT devices?
PAN
LPWAN
MAN
SAN
Zero Trust security follows which principle?
Trust all internal users
Trust once, verify later
Never trust, always verify
No authentication needed
Which technology uses quantum physics for ultra-secure communication?
Blockchain
VPN
Quantum Networking
MPLS
Which future network solution focuses on energy efficiency?
Mesh networking
Green networking
Packet switching
Circuit switching
Which command is used to assign an IP address on a Cisco router interface?
ip route
ip address
set ip
interface ip
Which device is mainly configured to forward packets between networks?
Hub
Switch
Router
Repeater
Which command enters global configuration mode in Cisco IOS?
enable
configure terminal
interface mode
setup
What is the purpose of a default gateway?
Assign MAC address
Connect local network to other networks
Filter packets
Provide DNS service
Which protocol is used for automatic IP configuration?
ARP
DNS
DHCP
FTP
Which interface is commonly used to connect a router to a LAN?
Serial
Loopback
Ethernet
What subnet mask corresponds to /24 ?
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.252
Which command saves the running configuration to startup configuration?
save config
write memory
copy startup-config running-config
reload
VLAN configuration is done mainly on which device?
Router
Hub
Switch
Modem
Which protocol is used to test network connectivity?
FTP
ICMP
HTTP
SMTP
TCP provides reliable and connection-oriented communication.
True
False
UDP is faster than TCP but less reliable.
True
False
A hub can filter traffic intelligently.
True
False
IPv6 uses 32-bit addressing.
True
False
6G networks will provide lower latency than 5G.
True
False
Edge computing increases delay in real-time applications.
True
False
Zero Trust security assumes internal networks are safe.
True
False
Satellite internet can help connect rural areas.
True
False
Each network interface must have a unique IP address.
True
False
DHCP reduces manual network configuration.
True
False
VLANs improve network security and performance.
True
False
Console connection requires an IP address.
True
False
Match Column A with Column B: HTTP — choose the correct description.
Email transfer
File transfer
Web service
Name resolution
Match Column A with Column B: FTP — choose the correct description.
Email transfer
File transfer
Web service
Name resolution
Match Column A with Column B: SMTP — choose the correct description.
Email transfer
File transfer
Web service
Name resolution
Match Column A with Column B: DNS — choose the correct description.
Email transfer
File transfer
Web service
Name resolution
Define computer network.
A group of interconnected devices that communicate to share resources and data
A single computer running multiple programs without external connections
A device that stores electrical power for other electronics
A method used exclusively for encrypting local files
Explain the difference between LAN and WAN.
LAN covers a limited area such as a building, while WAN spans large geographic areas connecting multiple LANs
LAN connects only wireless devices, while WAN connects only wired devices
LAN uses routers only, while WAN uses switches only
LAN uses TCP, while WAN uses UDP
What is subnetting?
Dividing a network into smaller sub-networks to improve addressing, management, and efficiency
Encrypting packets to secure data in transit
Replacing IPv4 with IPv6 addressing
Connecting two devices directly without a switch
List any two advantages of computer networking.
Resource sharing and improved communication/collaboration
Higher electrical power and battery life
Guaranteed zero latency and zero packet loss
Elimination of the need for security policies
6G corresponds to which description?
Ultra-high speed
Programmable network
Low latency
Strong security
Edge Computing corresponds to which description?
Ultra-high speed
Programmable network
Low latency
Strong security
Zero Trust corresponds to which description?
Ultra-high speed
Programmable network
Low latency
Strong security
IP Address corresponds to which description?
Network identification
Network segmentation
Route to other networks
Logical network
Subnet Mask corresponds to which description?
Network identification
Network segmentation
Route to other networks
Logical network
Default Gateway corresponds to which description?
Network identification
Network segmentation
Route to other networks
Logical network
VLAN corresponds to which description?
Network identification
Network segmentation
Route to other networks
Logical network
What is network configuration?
Why is IP addressing important in network configuration?
Explain the purpose of VLANs.
What is the difference between static IP and DHCP?
List two basic steps to configure a Cisco router.
