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WorksheetsUnderstanding Local Area Networks
Total questions: 22
Worksheet time: 22mins
What is a Bus Network?
A linear coaxial cable connecting all devices.
A network that connects devices over long distances.
A type of wireless network.
A network that only allows one device to connect.
What are the disadvantages of Bus Networks?
Difficult to add new workstations without cutting the cable.
Easy to add new workstations.
No disadvantages.
Only used in cable TV systems.
What is a Contention-Based Protocol?
First-come, first-served approach.
A protocol that allows multiple transmissions at once.
A protocol that only allows one device to transmit.
None of the above.
What is the function of a Switch?
Directs frames to specific destinations.
Broadcasts data to all devices.
Only connects to one device.
None of the above.
What is the purpose of Link Aggregation?
Combines multiple links for higher bandwidth.
Reduces the number of devices in a network.
Only used for wireless connections.
None of the above.
What does Quality of Service (QoS) do in Ethernet?
Prioritizes network traffic based on importance.
Only allows one device to connect.
Reduces the speed of the network.
None of the above.
What is the maximum speed of Fast Ethernet?
10 Mbps
100 Mbps
1 Gbps
10 Gbps
What does IEEE 802.11b use?
2.4 GHz band
5 GHz band
Infrared
DSSS
What is a Network Operating System (NOS)?
An OS designed to manage networked resources
An OS for personal computers
An OS that only supports file sharing
An OS that does not support remote access
What are the key functions of a Network Operating System?
Manage servers and clients
Coordinate network-wide resources
Handle user accounts and permissions
All of the above
What is RAID?
A technology for using multiple hard drives together
A type of server
A network protocol
A programming language
What is a server blade?
A server without a cabinet or box
A type of network cable
A software application
A type of RAID configuration
The hardware device that facilitates communication between wireless devices and a wired LAN is
(a)
. The protocol used by wireless LANs to avoid collisions is called (a) .
The standard that introduced MIMO technology to improve speed and range is (a) .
What technology uses multiple antennas at both sender and receiver ends to boost speed and reduce interference?
QAM
DSSS
MIMO
CSMA/CA
10. Which encryption method was found to be weak and easily hackable in early wireless LANs?
(a)
. (a) is a logical subgroup within a LAN created through switches and software, without physical rewiring
. The Ethernet media access control protocol that listens for an idle channel before transmitting is (a) .
Which IEEE standard governs Ethernet networks?
(a)
What cable is used in 100BaseFX?
(a)
8. Which switching method checks for errors before forwarding frames?
Cut-through
Store-and-forward
Token passing
D. Baseband signaling
