WorksheetsNet+ 3.2 OBQ
Total questions: 30
Worksheet time: 15mins
What is the primary function of a hub in an Ethernet network?
To act as a repeater
To provide full-duplex communication
To route data packets
To encrypt data
In Ethernet, a broadcast transmission is sent to all hosts using the broadcast MAC address ______.
A) ff:ff:ff:ff:ff:ff
B) 00:00:00:00:00:00
C) aa:aa:aa:aa:aa:aa
D) 11:11:11:11:11:11
What is the first step in the hub-based Ethernet communication process?
The hub regenerates the transmission
Host AC recognizes its address
The A4 host sends a frame using its Tx pair via an MDI interface
Host AB receives the frame and ignores it.
In the hub-based Ethernet communication, the hub receives a weakened and distorted transmission at which port?
MDI-X port F1
MDI-X port F2
MDI-X port F3
MDI-X port F4
What is the primary function of an Ethernet bridge at the Data Link layer?
To increase the number of nodes in a network
To establish separate physical network segments while keeping all nodes in the same logical network
To connect different types of networks
To provide internet access.
In a network, a bridge helps to create separate ________ domains to reduce collisions.
broadcast
collision
access
logical
What is the role of an Ethernet bridge in a network?
To create a collision domain
To forward only appropriate traffic
To repeat transmissions on all ports
To ignore all frames
Fill in the blank: When the bridge is initialized, the database's ______ is empty, but information is constantly added as the bridge listens to the connected segments.
IP address table
MAC address table
Routing table
ARP table
What happens if no record of the MAC address exists or the frame is a broadcast or multicast?
The bridge discards the frame.
The bridge floods the frame to all segments except for the source segment.
The bridge sends the frame back to the source segment.
The bridge stores the frame for later use.
If no record of the MAC address exists, the bridge floods the frame to all segments except for the ______ segment.
destination
source
intermediate
final
What is the main advantage of using a switch over a hub in a network?
It allows for full-duplex communication.
It reduces the number of ports.
It increases contention.
It replaces MAC addresses.
In a switched Ethernet network, each switch port is a separate ________ domain.
collision
broadcast
multicast
unicast
What is a collision domain in the context of network switches?
A network segment where data packets can collide
A type of VLAN
A full-duplex communication channel
A wireless network area.
In a network switch, collisions can occur if the port is operating in ______ mode.
full-duplex
half-duplex
VLAN
wireless
Which of the following is a characteristic of unmanaged switches?
They require configuration.
They are typically used in corporate networks.
They function the same as an unmanaged switch when unconfigured.
They are always rack-mounted.
Fill in the blank: A modular switch has slots for ______, meaning it can be configured with different numbers and types of ports.
plug-in cards
fixed ports
unmanaged units
desktop units
What is the primary function of a modular chassis as shown in the image?
To provide power to devices
To provision multiple access switches
To store data
To connect to the internet.
A modular chassis is used to ______ multiple access switches.
connect
provision
power
store
Which of the following modes in Cisco IOS is a read-only mode where commands can be used to run basic troubleshooting tools?
User EXEC mode
Privileged EXEC mode
Global configuration mode
Fill in the blank: To configure the first interface from global config mode, run the command ______.
configure terminal
run interface GigabitEthernet0/1
enable
What is the command to enter the configuration terminal in Cisco IOS?
enable
configure terminal
interface GigabitEthernet0/1
exit
Fill in the blank: To make changes persistent in Cisco IOS, run the command 'copy running-config ______'.
A) startup-config
B) shutdown
C) exit
D) enable
True or False: Switches broadcast data to all devices connected to the network. -
true
false
What is a characteristic of an unmanaged switch?
It can be configured via a command-line interface.
It has multiple IP addresses assigned to it.
It provides plug-and-play capability with minimal configuration options.
It is capable of interpreting layer 3 data.
What does MAC stand for?
media access control
multi access control
media account control
multi address control
Bits are packaged into frames at which layer of the OSI model?
data link
transport
physical
presentation
application
What does the data link layer use to describe the logical grouping of data?
Packet
Frame
Segment
Bit
