Cisco CCNA 200-301 VLANs Practice Test

Topic 12 focuses on VLANs for the Cisco Certified Network Associate (CCNA) certification and the 200-301 exam, using Cisco networking and Cisco IOS concepts where relevant. For broader exam preparation, review the Cisco CCNA 200-301 Exam Dumps page. Each question includes a concise explanation of the correct answer and the technical reason the other choices are incorrect.

Question 1

Which logical Layer 2 broadcast domain is configured on a switch?

1. switchport mode access
2. VLAN
3. VLAN ID
4. Voice VLAN

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a logical Layer 2 broadcast domain configured on a switch.

Incorrect Answers

Answer A is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Answer C is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.

Answer D is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

 

Question 2

Which switch port carries traffic for one access VLAN toward a typical endpoint?

1. Access VLAN
2. Access port
3. VLAN
4. VLAN ID

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a switch port that carries traffic for one access VLAN toward a typical endpoint.

Incorrect Answers

Answer A is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

Answer C is incorrect because the “VLAN” option describes a different concept: a logical Layer 2 broadcast domain configured on a switch.

Answer D is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.

 

Question 3

Which VLAN is assigned to untagged endpoint traffic received on an access port?

1. show vlan brief
2. VLAN ID
3. Voice VLAN
4. Access VLAN

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes the VLAN assigned to untagged endpoint traffic received on an access port.

Incorrect Answers

Answer A is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

Answer B is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.

Answer C is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

 

Question 4

Which VLAN can be separately assigned to IP phone voice traffic on a switch access port?

1. switchport access vlan
2. Default VLAN
3. Voice VLAN
4. Access port

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Incorrect Answers

Answer A is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer B is incorrect because the “Default VLAN” option describes a different concept: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Answer D is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

 

Question 5

Which numeric identifier is used to distinguish one VLAN from another?

1. Access port
2. show vlan brief
3. VLAN
4. VLAN ID

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes the numeric identifier used to distinguish one VLAN from another.

Incorrect Answers

Answer A is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer B is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

Answer C is incorrect because the “VLAN” option describes a different concept: a logical Layer 2 broadcast domain configured on a switch.

 

Question 6

How is VLAN 1 classified on a Cisco switch before any VLAN assignments are changed?

1. Default VLAN
2. Voice VLAN
3. switchport access vlan
4. Access port

Correct Answer: A

 

Correct Answer

Answer A is correct because VLAN 1 is the default VLAN and initially contains the switch ports.

Incorrect Answers

Answer B is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Answer C is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer D is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

 

Question 7

Which switch virtual interface provides a Layer 3 interface associated with a VLAN?

1. SVI
2. VLAN
3. Access VLAN
4. switchport mode access

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Incorrect Answers

Answer B is incorrect because the “VLAN” option describes a different concept: a logical Layer 2 broadcast domain configured on a switch.

Answer C is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

Answer D is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

 

Question 8

Which Cisco IOS command summarizes configured VLANs and access-port membership?

1. Default VLAN
2. Access port
3. show vlan brief
4. VLAN

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a Cisco IOS command that summarizes configured VLANs and access-port membership.

Incorrect Answers

Answer A is incorrect because the “Default VLAN” option describes a different concept: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Answer B is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer D is incorrect because the “VLAN” option describes a different concept: a logical Layer 2 broadcast domain configured on a switch.

 

Question 9

Which Cisco IOS interface command statically places a Layer 2 switch port into access mode?

1. switchport access vlan
2. switchport mode access
3. show vlan brief
4. VLAN

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Incorrect Answers

Answer A is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer C is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

Answer D is incorrect because the “VLAN” option describes a different concept: a logical Layer 2 broadcast domain configured on a switch.

 

Question 10

Which Cisco IOS interface command assigns an access port to a specified VLAN?

1. Access port
2. show vlan brief
3. switchport access vlan
4. Access VLAN

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a Cisco IOS interface command that assigns an access port to a specified VLAN.

Incorrect Answers

Answer A is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer B is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

Answer D is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

 

Question 11

For VLAN, which statement is accurate?

1. A Cisco IOS interface command that statically places a Layer 2 switch port into access mode.
2. The numeric identifier used to distinguish one VLAN from another.
3. A logical Layer 2 broadcast domain configured on a switch.
4. A switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a logical Layer 2 broadcast domain configured on a switch.

Incorrect Answers

Answer A is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Answer B is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.

Answer D is incorrect because the “SVI” option describes a different concept: a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

 

Question 12

For Access port, which statement is accurate?

1. A Cisco IOS interface command that assigns an access port to a specified VLAN.
2. A VLAN that can be separately assigned to IP phone voice traffic on a switch access port.
3. The VLAN assigned to untagged endpoint traffic received on an access port.
4. A switch port that carries traffic for one access VLAN toward a typical endpoint.

Correct Answer: D

 

Correct Answer

Answer D is correct because it accurately defines Access port. The matching definition is: A switch port that carries traffic for one access VLAN toward a typical endpoint.

Incorrect Answers

Answer A is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer B is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Answer C is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

 

Question 13

For Access VLAN, which statement is accurate?

1. The VLAN assigned to untagged endpoint traffic received on an access port.
2. A logical Layer 2 broadcast domain configured on a switch.
3. The numeric identifier used to distinguish one VLAN from another.
4. A Cisco IOS interface command that assigns an access port to a specified VLAN.

Correct Answer: A

 

Correct Answer

Answer A is correct because the choice accurately describes Access VLAN: The VLAN assigned to untagged endpoint traffic received on an access port.

Incorrect Answers

Answer B is incorrect because the “VLAN” option describes a different concept: a logical Layer 2 broadcast domain configured on a switch.

Answer C is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.

Answer D is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

 

Question 14

For Voice VLAN, which statement is accurate?

1. A switch virtual interface that provides a Layer 3 interface associated with a VLAN.
2. A VLAN that can be separately assigned to IP phone voice traffic on a switch access port.
3. A switch port that carries traffic for one access VLAN toward a typical endpoint.
4. VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Incorrect Answers

Answer A is incorrect because the “SVI” option describes a different concept: a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Answer C is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer D is incorrect because the “Default VLAN” option describes a different concept: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

 

Question 15

For VLAN ID, which statement is accurate?

1. A switch virtual interface that provides a Layer 3 interface associated with a VLAN.
2. The numeric identifier used to distinguish one VLAN from another.
3. VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.
4. A switch port that carries traffic for one access VLAN toward a typical endpoint.

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes the numeric identifier used to distinguish one VLAN from another.

Incorrect Answers

Answer A is incorrect because the “SVI” option describes a different concept: a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Answer C is incorrect because the “Default VLAN” option describes a different concept: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Answer D is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

 

Question 16

For Default VLAN, which statement is accurate?

1. VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.
2. A Cisco IOS interface command that assigns an access port to a specified VLAN.
3. A VLAN that can be separately assigned to IP phone voice traffic on a switch access port.
4. A Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Correct Answer: A

 

Correct Answer

Answer A is correct because it accurately defines Default VLAN. The matching definition is: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Incorrect Answers

Answer B is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer C is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Answer D is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

 

Question 17

For SVI, which statement is accurate?

1. The numeric identifier used to distinguish one VLAN from another.
2. A VLAN that can be separately assigned to IP phone voice traffic on a switch access port.
3. A switch virtual interface that provides a Layer 3 interface associated with a VLAN.
4. The VLAN assigned to untagged endpoint traffic received on an access port.

Correct Answer: C

 

Correct Answer

Answer C is correct because the choice accurately describes SVI: A switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Incorrect Answers

Answer A is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.

Answer B is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Answer D is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

 

Question 18

For show vlan brief, which statement is accurate?

1. A VLAN that can be separately assigned to IP phone voice traffic on a switch access port.
2. The VLAN assigned to untagged endpoint traffic received on an access port.
3. A switch port that carries traffic for one access VLAN toward a typical endpoint.
4. A Cisco IOS command that summarizes configured VLANs and access-port membership.

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes a Cisco IOS command that summarizes configured VLANs and access-port membership.

Incorrect Answers

Answer A is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Answer B is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

Answer C is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

 

Question 19

For switchport mode access, which statement is accurate?

1. The VLAN assigned to untagged endpoint traffic received on an access port.
2. A switch virtual interface that provides a Layer 3 interface associated with a VLAN.
3. A Cisco IOS interface command that assigns an access port to a specified VLAN.
4. A Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Incorrect Answers

Answer A is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

Answer B is incorrect because the “SVI” option describes a different concept: a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Answer C is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

 

Question 20

For switchport access vlan, which statement is accurate?

1. A Cisco IOS command that summarizes configured VLANs and access-port membership.
2. A switch port that carries traffic for one access VLAN toward a typical endpoint.
3. A Cisco IOS interface command that statically places a Layer 2 switch port into access mode.
4. A Cisco IOS interface command that assigns an access port to a specified VLAN.

Correct Answer: D

 

Correct Answer

Answer D is correct because it accurately defines switchport access vlan. The matching definition is: A Cisco IOS interface command that assigns an access port to a specified VLAN.

Incorrect Answers

Answer A is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

Answer B is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer C is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

 

Question 21

In a campus access-layer change, the team must identify the technology that provides the following function: A logical Layer 2 broadcast domain configured on a switch. Which option should be selected?

1. VLAN
2. switchport access vlan
3. SVI
4. Voice VLAN

Correct Answer: A

 

Correct Answer

Answer A is correct because the operational requirement in the stem maps to VLAN: A logical Layer 2 broadcast domain configured on a switch.

Incorrect Answers

Answer B is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer C is incorrect because the “SVI” option describes a different concept: a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Answer D is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

 

Question 22

A desktop needs an untagged connection to one user VLAN. Which switch-port role is appropriate for its attachment?

1. switchport access vlan
2. Access port
3. show vlan brief
4. Voice VLAN

Correct Answer: B

 

Correct Answer

Answer B is correct because Access port is the most precise fit for the stated requirement. A switch port that carries traffic for one access VLAN toward a typical endpoint.

Incorrect Answers

Answer A is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer C is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

Answer D is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

 

Question 23

During a network access design review, the design calls for the following capability: The VLAN assigned to untagged endpoint traffic received on an access port. Which option names that capability most accurately?

1. show vlan brief
2. Access VLAN
3. Access port
4. switchport mode access

Correct Answer: B

 

Correct Answer

Answer B is correct because the scenario is describing the role of Access VLAN. The VLAN assigned to untagged endpoint traffic received on an access port.

Incorrect Answers

Answer A is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

Answer C is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer D is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

 

Question 24

An IP phone and a connected desktop share a switch access port, but their traffic must use separate VLANs. Which feature supplies the phone’s VLAN assignment?

1. Voice VLAN
2. Access VLAN
3. switchport access vlan
4. Access port

Correct Answer: A

 

Correct Answer

Answer A is correct because Voice VLAN directly provides the function required by the scenario. A VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Incorrect Answers

Answer B is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

Answer C is incorrect because the “switchport access vlan” option describes a different concept: a Cisco IOS interface command that assigns an access port to a specified VLAN.

Answer D is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

 

Question 25

While working on a Layer 2 troubleshooting session, an administrator encounters this requirement: The numeric identifier used to distinguish one VLAN from another. Which answer is the most precise match?

1. Voice VLAN
2. VLAN ID
3. SVI
4. Access VLAN

Correct Answer: B

 

Correct Answer

Answer B is correct because the operational requirement in the stem maps to VLAN ID: The numeric identifier used to distinguish one VLAN from another.

Incorrect Answers

Answer A is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Answer C is incorrect because the “SVI” option describes a different concept: a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Answer D is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

 

Question 26

In a campus access-layer change, the team must identify the technology that provides the following function: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports. Which option should be selected?

1. Voice VLAN
2. VLAN ID
3. SVI
4. Default VLAN

Correct Answer: D

 

Correct Answer

Answer D is correct because Default VLAN is the most precise fit for the stated requirement. VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Incorrect Answers

Answer A is incorrect because the “Voice VLAN” option describes a different concept: a VLAN that can be separately assigned to IP phone voice traffic on a switch access port.

Answer B is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.

Answer C is incorrect because the “SVI” option describes a different concept: a switch virtual interface that provides a Layer 3 interface associated with a VLAN.

 

Question 27

A multilayer switch needs an IP-addressed logical interface for VLAN 30. Which interface type should the engineer configure?

1. switchport mode access
2. Access port
3. SVI
4. Access VLAN

Correct Answer: C

 

Correct Answer

Answer C is correct because the scenario is describing the role of SVI. A switch virtual interface that provides a Layer 3 interface associated with a VLAN.

Incorrect Answers

Answer A is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Answer B is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer D is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

 

Question 28

During a network access design review, the design calls for the following capability: A Cisco IOS command that summarizes configured VLANs and access-port membership. Which option names that capability most accurately?

1. show vlan brief
2. Default VLAN
3. Access VLAN
4. VLAN

Correct Answer: A

 

Correct Answer

Answer A is correct because show vlan brief directly provides the function required by the scenario. A Cisco IOS command that summarizes configured VLANs and access-port membership.

Incorrect Answers

Answer B is incorrect because the “Default VLAN” option describes a different concept: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Answer C is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

Answer D is incorrect because the “VLAN” option describes a different concept: a logical Layer 2 broadcast domain configured on a switch.

 

Question 29

An engineer wants an endpoint-facing switch port to operate statically as an access port. Which interface command sets this mode?

1. Access VLAN
2. Access port
3. switchport mode access
4. show vlan brief

Correct Answer: C

 

Correct Answer

Answer C is correct because the operational requirement in the stem maps to switchport mode access: A Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Incorrect Answers

Answer A is incorrect because the “Access VLAN” option describes a different concept: the VLAN assigned to untagged endpoint traffic received on an access port.

Answer B is incorrect because the “Access port” option describes a different concept: a switch port that carries traffic for one access VLAN toward a typical endpoint.

Answer D is incorrect because the “show vlan brief” option describes a different concept: a Cisco IOS command that summarizes configured VLANs and access-port membership.

 

Question 30

While working on a Layer 2 troubleshooting session, an administrator encounters this requirement: A Cisco IOS interface command that assigns an access port to a specified VLAN. Which answer is the most precise match?

1. switchport access vlan
2. Default VLAN
3. switchport mode access
4. VLAN ID

Correct Answer: A

 

Correct Answer

Answer A is correct because switchport access vlan is the most precise fit for the stated requirement. A Cisco IOS interface command that assigns an access port to a specified VLAN.

Incorrect Answers

Answer B is incorrect because the “Default VLAN” option describes a different concept: VLAN 1 on Cisco switches, which exists by default and initially contains switch ports.

Answer C is incorrect because the “switchport mode access” option describes a different concept: a Cisco IOS interface command that statically places a Layer 2 switch port into access mode.

Answer D is incorrect because the “VLAN ID” option describes a different concept: the numeric identifier used to distinguish one VLAN from another.