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WorksheetsModule 6: Data Link Layer Quizizz
Total questions: 33
Worksheet time: 17mins
What is the role of the Data Link Layer in packet exchange?
Encrypting data
Providing access to media
Managing IP addresses
Routing data packets
Which of the following organizations is NOT mentioned as defining data link layer protocols?
IEEE
ITU
ISO
NASA
Which organization is known for its work in electrical and electronic engineering standards?
ITU
IEEE
ISO
ANSI
What is the topology of a network?
The physical layout of a building
The arrangement and relationship of network devices and their interconnections
The software used to manage a network
The speed of data transmission in a network
What is the main limitation of half-duplex communication?
High cost
Limited to wireless networks
Only one device can send or receive at a time
Requires complex hardware
What does MAC stand for?
media access control
multi access control
media account control
multi address control
The Data link layer is divided into two layers called:
Bits are packaged into frames at which layer of the OSI model?
data link
transport
physical
presentation
application
Which sublayer of the data link layer is responsible for the physical or hardware address burned into each NIC?
Logical Link Control (LLC) layer
Media Access Control (MAC) layer
Network Control layer
Transport Control layer
Which of the following devices resides at the data link layer of the OSI model?
Router
Passive hub
Ethernet switch
Repeater
Which layer of the OSI model is responsible for error detection and correction?
Application layer
Network layer
Data link layer
Transport layer
What is the primary function of the Logical Link Control (LLC) sublayer?
Managing physical addresses
Providing error control and flow control
Routing data packets
Encrypting data
Bits are packaged into frames at which layer of the OSI model?
data link
transport
physical
presentation
application
If a computer can discover the MAC address for another computer, it can communicate directly with that computer.
True
False
Which IEEE standard defines Ethernet?
IEEE 802.11
IEEE 802.15
IEEE 802.3
IEEE 802.16
Which type of cable is typically used for Ethernet networking?
Coaxial cable
Fiber optic cable
Twisted pair cable
Powerline cable
What is the role of a switch in a network?
To forward data based on IP addresses
To forward data based on MAC addresses
To act as a gateway to other networks
To convert digital signals to analog
What is the role of a MAC address in networking?
Identifying devices on the network
Identifying network segments
Routing data between networks
Encrypting data packets
Which protocol uses an Address Resolution Protocol (ARP)?
TCP
IP
UDP
Ethernet
Which of the following devices operates at the data link layer?
Router
Switch
Hub
Modem
Which of the following describes the data encapsulation process at the data link layer?
Segmentation
Packetizing
Framing
Routing
Which of the following describes the data encapsulation process at the data link layer?
Segmentation
Packetizing
Framing
Routing
What is the purpose of a CRC (Cyclic Redundancy Check) in Ethernet frames?
Address resolution
Error detection
Data encryption
Flow control
The data link layer, also known as Layer 2 in the OSI model, is responsible for:
Providing internet access.
Preparing data for physical transmission.
Routing data packets between networks.
Securing communication between applications.
A point-to-point WAN topology involves:
All devices sharing a central hub.
Devices directly connected in pairs.
Data taking a circular path through the network.
Multiple devices connecting to a central switch.
Full-duplex communication allows devices to:
Only send data, not receive.
Only receive data, not send.
Send and receive data simultaneously.
Neither send nor receive data.
What is the key difference between physical and logical topologies?
Physical describes cables, logical describes software
Physical describes device layout, logical describes IP addressing.
Physical describes internet connection, logical describes local network
There is no difference; they describe the same network layout.
The two sublayers of the IEEE 802 LAN/MAN data link layer are:
IP and TCP
OSI and TCP/IP
LLC (Logical Link Control) and MAC (Media Access Control)
UDP and DNS
Compared to full-duplex communication, half-duplex communication is:
Faster and more efficient.
Slower and more prone to collisions.
More secure for data transfer.
Used for longer distances.
The data link layer is crucial for network communication because it:
Provides the physical path for data transmission.
Routes data packets across the internet.
Ensures reliable and error-free data delivery between network devices.
Defines security protocols for applications.
The trailer in a data link frame typically includes:
Identifier for the beginning of the frame.
The encapsulated data from Layer 3.
Information for error detection
Routing information for the destination device.
Data link layer standards are defined by organizations like:
Microsoft
Apple
Institute of Electrical and Electronics Engineers (IEEE)
