MCQs

Disclaimer:

Educational Use Only:

The website links provided are to be used strictly for educational and knowledge-gaining purposes only.

No Misuse:

Do not misuse the links or the information contained therein for any commercial, illegal, or unethical activities.

Respect for Websites and Businesses:

Respect the intellectual property and business interests of the websites and their owners. Do not attempt to alter, copy, or redistribute content without proper authorization.

Acknowledge Value of Knowledge:

Recognize and value the knowledge and resources shared by these websites. Use the information responsibly and ethically.

No Endorsement:

The provision of these links does not imply endorsement of the linked sites, their content, or their products and services. Users are responsible for evaluating the suitability and accuracy of the information.

User Responsibility:

By accessing these links, you agree to use the information at your own risk and to comply with all applicable laws and website terms of use.

What is the default VLAN on most switches?
a. VLAN 1
b. VLAN 10
c. VLAN 100
d. VLAN 0
Answer: a. VLAN 1sanfoundry+1
Changing the default VLAN helps mitigate which risk?
a. Broadcast storms
b. MAC flooding
c. VLAN hopping attacks
d. DNS spoofing
Answer: c. VLAN hopping attackssanfoundry
Which command changes a port from the default VLAN to VLAN 10 on Cisco switches?
a. switchport access vlan 1
b. switchport access vlan 10
c. vlan database 10
d. set vlan 10
Answer: b. switchport access vlan 10webasha
What is the effect of deleting the default VLAN (VLAN 1)?
a. All ports go offline
b. Ports revert to VLAN 1
c. Traffic stops on all VLANs
d. Default VLAN can’t be deleted
Answer: d. Default VLAN can’t be deleteditexamanswers+1
What type of traffic is normally associated with the default VLAN?
a. Tagged traffic
b. Untagged traffic
c. Encrypted traffic
d. Broadcast traffic
Answer: b. Untagged trafficitexamanswers+1
Why is it recommended to change the default VLAN assignment for management interfaces?
a. Improves speed
b. Reduces unauthorized access
c. Lowers latency
d. Enhances wireless connectivity
Answer: b. Reduces unauthorized accessscribd
What should be updated after changing default VLAN assignments?
a. IP address of switch
b. Gateway address
c. Documentation and topology diagrams
d. Firmware version
Answer: c. Documentation and topology diagramswebasha
Which protocol is commonly used for VLAN tagging?
a. 802.1p
b. 802.1w
c. 802.1Q
d. 802.1D
Answer: c. 802.1Qccnatutorials
Upon changing the default VLAN, what must devices do to communicate across VLANs?
a. Use subnetting
b. Use a router
c. Disable firewalls
d. Reboot all devices
Answer: b. Use a routeritexamanswers+1
When configuring a trunk port, which VLANs are allowed by default?
a. Only the default VLAN
b. All VLANs
c. Only extended VLANs
d. No VLANs
Answer: b. All VLANsgrabstudy
Which command displays VLAN assignments on Cisco devices?
a. show vlan brief
b. vlan status
c. display vlan
d. switchport show vlan
Answer: a. show vlan briefwebasha
What role does the native VLAN play in a trunk link?
a. Carries untagged traffic
b. Provides redundancy
c. Is never used
d. Only for VoIP
Answer: a. Carries untagged trafficscribd+1
What is the valid range for normal VLAN IDs?
a. 0-4095
b. 2-1001
c. 1006-4094
d. 1-4094
Answer: b. 2-1001sanfoundry
After changing the default VLAN, what could happen if management interfaces are not reassigned?
a. Devices lose connectivity
b. Remain accessible via VLAN 1
c. Ports disable automatically
d. Devices reboot
Answer: b. Remain accessible via VLAN 1itexamanswers+1
Which port type carries traffic for multiple VLANs?
a. Access port
b. Trunk port
c. Virtual port
d. Management port
Answer: b. Trunk portgrabstudy+1
What file should be cleared to reset VLAN configuration on Cisco switches?
a. vlan.dat
b. boot.cfg
c. nvram.bin
d. startup-config
Answer: a. vlan.datitexamanswers
Changing the default VLAN enhances which aspect of network security?
a. Data encryption
b. Isolation of management traffic
c. Redundancy
d. DHCP performance
Answer: b. Isolation of management trafficscribd+1
What does the command ‘interface vlan X’ do?
a. Creates a VLAN interface
b. Deletes a VLAN
c. Assigns port to VLAN X
d. Saves VLAN configuration
Answer: a. Creates a VLAN interfacewebasha
Which switch port command assigns it to a new VLAN?
a. switchport access vlan X
b. vlan switch X
c. port vlan set X
d. assign vlan X
Answer: a. switchport access vlan Xwebasha
What is a practical benefit of changing the default VLAN for user workstations?
a. Easier broadcast
b. Increased network segmentation
c. Higher bandwidth
d. Faster switching
Answer: b. Increased network segmentationsanfoundry+1
Why should the default VLAN not be used for sensitive data?
a. It is broadcast only
b. Easier target for attacks
c. No IP assignment
d. Has no trunk support
Answer: b. Easier target for attacksscribd
Extended VLANs are typically found in what range?
a. 2-1001
b. 1002-1005
c. 1006-4094
d. 1-4094
Answer: c. 1006-4094sanfoundry+1
Which configuration step sets the VLAN on a port in Cisco IOS?
a. interface fa0/1
b. switchport mode access
c. switchport access vlan X
d. copy running-config startup-config
Answer: c. switchport access vlan Xwebasha
What happens when a VLAN is deleted from a switch?
a. Ports assigned revert to VLAN 1
b. Ports are disabled
c. Ports enter trunk mode
d. No effect
Answer: a. Ports assigned revert to VLAN 1itexamanswers
Why do security experts recommend changing the default VLAN for administrative access?
a. Prevents MAC flooding
b. Reduces attack surface
c. Increases speed
d. Supports more devices
Answer: b. Reduces attack surfacescribd+1
What must be done on all switches when changing the default VLAN?
a. Save running configuration
b. Update routing tables
c. Reboot switch immediately
d. Erase vlan.dat file
Answer: a. Save running configurationwebasha
In Cisco switch configuration, how do you verify VLAN changes?
a. show vlan brief
b. show ip route
c. ping vlan X
d. vlan info status
Answer: a. show vlan briefwebasha
Before changing default VLAN, ensure which feature is working to prevent disruptions?
a. Spanning Tree Protocol
b. DHCP relay
c. DNS caching
d. SNMP alerts
Answer: a. Spanning Tree Protocolsanfoundry
VLAN changes should also be communicated to which group?
a. End users
b. Network team
c. Security team
d. All of the above
Answer: d. All of the abovewebasha
What is a common mistake when changing default VLAN?
a. Forgetting to update documentation
b. Overwriting system files
c. Unplugging switch cables
d. Disabling VLAN routing
Answer: a. Forgetting to update documentationwebasha
Which tool helps automate VLAN configuration changes?
a. VLAN Management Policy Server (VMPS)
b. ACL Generator
c. DHCP Server
d. SNMP Manager
Answer: a. VLAN Management Policy Server (VMPS)sanfoundry
What is the role of VTP in VLAN operations?
a. Propagates VLAN info across switches
b. Encrypts VLAN traffic
c. Assigns IP addresses
d. Monitors bandwidth
Answer: a. Propagates VLAN info across switchesexamveda
Which type of VLAN should not be used for device management?
a. Default VLAN
b. Voice VLAN
c. Management VLAN
d. Secure VLAN
Answer: a. Default VLANscribd+1
Changing the default VLAN helps to:
a. Isolate management and user traffic
b. Increase broadcast domain size
c. Reduce VLAN count
d. Prevent trunking
Answer: a. Isolate management and user trafficscribd
On most switches, what VLAN is management traffic usually assigned to after changing the default?
a. VLAN 20
b. Management VLAN (custom)
c. VLAN 1
d. Extended VLAN
Answer: b. Management VLAN (custom)webasha
What is the IEEE standard for VLAN trunking?
a. 802.1Q
b. 802.1W
c. 802.3ad
d. 802.11ac
Answer: a. 802.1Qccnatutorials
What should be done before removing the default VLAN assignment from a port?
a. Assign port to another VLAN
b. Disable the port
c. Backup switch configuration
d. Create a new trunk
Answer: a. Assign port to another VLANsanfoundry+1
Which command on a Cisco switch verifies the native VLAN?
a. show interfaces trunk
b. show vlan native
c. show native vlan
d. vlan config native
Answer: a. show interfaces trunkwebasha
VLAN changes should always be tested for:
a. Layer 2 connectivity
b. Layer 3 routing
c. Physical cabling issues
d. Wireless network impact
Answer: a. Layer 2 connectivitysanfoundry
Which VLAN ID can never be removed from a Cisco switch?
a. VLAN 10
b. VLAN 1006
c. VLAN 1004
d. VLAN 1
Answer: d. VLAN 1ccnatutorials
What is a key step after changing VLAN assignments for security?
a. Update firewall rules
b. Disable spanning tree
c. Erase all VLAN IDs
d. Enable SNMP traps
Answer: a. Update firewall ruleswebasha
Admins should avoid using VLAN 1 for which function?
a. Data traffic
b. Management access
c. Voice VLAN
d. Routing
Answer: b. Management accessscribd+1
What is required for VLAN communication across networks?
a. Inter-VLAN routing
b. VLAN trunking
c. Extended VLAN
d. Redundant switch
Answer: a. Inter-VLAN routingitexamanswers
Which best defines a native VLAN?
a. Receives untagged traffic
b. Used for management
c. Used for trunking
d. Used for voice traffic
Answer: a. Receives untagged trafficscribd+1
Which method is used to group switch ports into VLANs?
a. Manual configuration
b. Automatic configuration
c. Semi-automatic configuration
d. All of the above
Answer: d. All of the abovesanfoundry
Native VLAN should be changed from VLAN 1 to:
a. any unused VLAN
b. VLAN 10 always
c. VLAN 1002-1005 only
d. VLAN 1 is best practice
Answer: a. any unused VLANsanfoundry
What is a non-disruptive way to change VLAN assignment on a port?
a. Use interface command and assign to new VLAN
b. Reset switch
c. Reload switch IOS
d. Erase startup config
Answer: a. Use interface command and assign to new VLANwebasha
Which is true about VLAN configuration?
a. It enables logical segmentation
b. Must use default VLAN only
c. Can’t use static VLANs
d. Disables switch ports
Answer: a. It enables logical segmentationwatelectronics
VLAN hopping exploitation is mitigated by:
a. Changing the default VLAN
b. Increasing switch port speed
c. Enabling port security
d. Disabling VTP
Answer: a. Changing the default VLANscribd
Successful VLAN reconfiguration should be:
a. Documented and validated
b. Unacknowledged
c. Ignored by security teams
d. Only communicated to management
Answer: a. Documented and validatedwebasha

Blog

Systemethic Technologies

Leave a Reply Cancel reply

Useful links

Other Terms & Policies

Contact Info