WorksheetsNetworking Fundamentals Worksheet
Total questions: 47
Worksheet time: 24mins
What is the main difference between a centralized network and a peer-to-peer network?
Centralized networks do not require hardware
Peer-to-peer networks rely on a dedicated server
Centralized networks rely on a central server
Peer-to-peer networks are more secure
Which is a disadvantage of a peer-to-peer network?
High cost
Difficult to manage security and backups
Requires a server
Limited scalability
What device connects multiple networks together?
Switch
Hub
Router
Bridge
Which device forwards traffic based on MAC addresses?
Router
Switch
Firewall
Modem
A PAN typically connects devices within:
A city
A campus
A room or personal space
A country
Which network type spans large geographic distances?
LAN
MAN
WAN
PAN
A LAN is best described as:
Internet-wide
City-wide
Personal
Local and privately owned
A converged network supports:
Only data
Only voice
Voice, video, and data
Wireless only
What does fault tolerance allow a network to do?
Increase speed
Continue functioning during failures
Encrypt data
Reduce cost
Reliability refers to a network’s ability to:
Be upgraded
Prevent unauthorized access
Deliver data consistently
Support wireless devices
What does Quality of Service (QoS) control?
Network authentication
Packet encryption
Traffic priority
IP addressing
Confidentiality ensures:
Data is always available
Data is not modified
Only authorized users can access data
Data travels faster
Integrity ensures:
Data is private
Data remains unchanged
Data is accessible
Data is encrypted
Availability ensures:
Data is accurate
Data is private
Systems are accessible when needed
Data is compressed
Which connection is considered out-of-band?
SSH
Telnet
Console
HTTPS
Which connection method is NOT secure?
SSH
Console
Telnet
HTTPS
What is in-band management?
Management over a separate physical connection
Management over the production network
Management without authentication
Management using ROM
What can you do in user EXEC mode?
Configure interfaces
View limited status information
Change passwords
Save configurations
Which mode allows access to show running-config?
User EXEC
Privileged EXEC
Global Configuration
ROM Monitor
Where do you configure device-wide settings?
User EXEC
Privileged EXEC
Global Configuration
Interface mode
What does service password-encryption do?
Encrypts traffic
Encrypts stored passwords
Enables SSH
Encrypts startup-config
RAM stores:
Startup configuration
Running configuration
IOS permanently
Bootstrap code
NVRAM stores:
Startup configuration
Running configuration
IOS permanently
Session logs
ROM contains:
Startup-config
Running-config
Bootstrap and POST
Interface configs
IPv4 addresses are:
64 bits
128 bits
32 bits
16 bits
IPv6 addresses use:
Decimal
Binary
Hexadecimal
Octal
What skill is required for this exam?
MAC filtering
Decimal-to-binary conversion
Packet sniffing
Encryption
TCP provides:
Faster transmission
No error checking
Reliable, ordered delivery
Broadcast only
UDP is best for:
File transfers
Streaming and VoIP
Authentication
DNS is used to:
Assign IPs
Resolve MAC addresses
Translate domain names
Encrypt traffic
ARP resolves:
Hostnames to IPs
IPs to MAC addresses
Ports to protocols
Frames to packets
SLAAC is used with:
IPv4
TCP
IPv6
UDP
How many layers are in the OSI model?
4
5
6
7
Which OSI layer handles encapsulation into frames?
Network
Transport
Data Link
Physical
What PDU belongs to the Network layer?
Bits
Frames
Packets
Segments
During de-encapsulation, data moves:
Physical → Application
Application → Physical
Network → Transport
Data Link → Physical
A default gateway is:
A switch
A firewall
A router interface
A DNS server
Latency refers to:
Data speed
Data size
Delay
Error rate
Goodput measures:
Total bandwidth
Raw speed
Useful data delivered
Cable quality
Which cable automatically adjusts transmit/receive pairs?
Straight-through
Crossover
Rollover
Auto-MDI-X
Which cable connects PC to switch?
Rollover
Crossover
Straight-through
Fiber
Which cable is used for console access?
Fiber
Crossover
Straight-through
Rollover
Which cable supports the longest distance?
Cat5e
Cat6
Copper
Fiber optic
Single-mode fiber is best for:
Short distances
LANs
Long-distance WANs
Home networks
Wi-Fi uses which IEEE standard?
802.3
802.11
Bluetooth uses:
802.11
802.15
802.16
802.3
IoT devices commonly use:
Fiber only
Copper only
Wireless signals
Satellite only
