WorksheetsITN Module 6 Quiz -- Data Link Layer
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
Which layer is the OSI data link layer?
a)
L2
b)
L7
c)
L6
d)
L5
e)
L4
2.
What are the 2 data link layer sublayers?
a)
Network Control Protocol
b)
Logical Link Control
c)
Media Access Control
d)
Link Control Protocol
3.
What is the responsibility of the MAC sublayer?
a)
Provide L3 addressing information to the Type field
b)
Provide a method to get the frame on and off the media
c)
Provide sequence numbers to track segments
d)
Provide routing information to deliver a frame
4.
What L2 function does a router perform?
a)
accepts a frame from media
b)
de-encapsulates the frame
c)
puts the frame on and off the media
d)
encapsulates the packet into a new frame
e)
performs error checking
5.
Which type of topology displays IP addresses?
a)
logical
b)
physical
c)
ring
d)
star
e)
bus
6.
Which LAN topology is considered a hybrid?
a)
extended star
b)
physical
c)
logical
d)
ring
e)
star
7.
Which physical topology requires that every node is attached to every other node on the network?
a)
mesh
b)
physical
c)
logical
d)
ring
e)
star
8.
What type of physical topology can be created by connecting all Ethernet cables to a central device?
a)
star
b)
physical
c)
logical
d)
ring
e)
bus
9.
Which type of network would use point-to-point, hub and spoke, or mesh topologies?
a)
WLAN
b)
LAN
c)
PAN
d)
WAN
e)
SAN
10.
Which communication method is used in WLANs?
a)
full duplex
b)
half duplex
c)
simplex
11.
Which media access control method is used with wireless connections?
a)
CSMA/CD
b)
CSMA/CA
c)
OSPF
d)
DHCP
12.
Which media access control method is used with legacy hubs?
a)
CSMA/CD
b)
CSMA/CA
c)
OSPF
d)
DHCP
13.
What does L2 of the OSI model add to a L3 packet to create a frame? (choose 2)
a)
header
b)
trailer
c)
port number
d)
sequence number
14.
What is the function of the FCS field in a L2 frame?
a)
determine the quality of service
b)
identify the L3 address as IPv4 or IPv6
c)
mark the beginning and end of the frame
d)
check for errors in the frame
15.
Which address is first in a frame?
a)
source IP address
b)
destination IP address
c)
source MAC address
d)
destination MAC address
16.
Which describes half duplex communication?
a)
can't send and receive data at the same time
b)
can send and receive data at the same time
c)
can detect traffic before sending or receiving data
d)
can't detect traffic before sending or receiving data
17.
Which is a function of the LLC sublayer?
a)
to identify which network layer protocol is being used
b)
to identify which data-link layer protocol is being used
c)
to determine what type of media the frame will be transmitted over
d)
to determine what encapsulation method should be used to transmit a frame
18.
Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary?
a)
the unlimited availability of IPv6 addresses
b)
the use of gigabit Ethernet speeds
c)
the use of CSMA/CA
d)
the use of full duplex L2 switches
100 %
