CompTIA Network+ mcq questions with answer – Set 4

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#1. Identify the distance limitation of a 10BASE5 Ethernet network.

100 m

100 m

185 m

185 m

500 m

500 m

2 km

2 km

#2. If two devices simultaneously transmit data on an Ethernet network and a collision occurs, what does each station do in an attempt to resend the data and avoid another collision?

Each device compares the other device’s priority value (determined by IP address) with its own, and the device with the highest priority value transmits first.

Each device compares the other device’s priority value (determined by IP address) with its own, and the device with the highest priority value transmits first.

Each device waits for a clear to send (CTS) signal from the switch.

Each device waits for a clear to send (CTS) signal from the switch.

Each device randomly picks a priority value, and the device with the highest value transmits first.

Each device randomly picks a priority value, and the device with the highest value transmits first.

Each device sets a random back off timer, and the device will attempt retransmission after the timer expires.

Each device sets a random back off timer, and the device will attempt retransmission after the timer expires.

#3. What kind of media is used by 100GBASE-SR10 Ethernet?

UTP

UTP

MMF

MMF

STP

STP

SMF

SMF

#4. Which of the following statements are true regarding VLANs? (Choose two.)

Select all that apply:

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A VLAN has a single broadcast domain.

A VLAN has a single broadcast domain.

For traffic to pass between two VLANs, that traffic must be routed.

For traffic to pass between two VLANs, that traffic must be routed.

Because of a switch’s MAC address table, traffic does not need to be routed to pass between two VLANs.

Because of a switch’s MAC address table, traffic does not need to be routed to pass between two VLANs.

A VLAN has a single collision domain.

A VLAN has a single collision domain.

#5. What name is given to a VLAN on an IEEE 802.1Q trunk whose frames are not tagged?

Native VLAN

Native VLAN

Default VLAN

Default VLAN

Management VLAN

Management VLAN

VLAN 0

VLAN 0

#6. In a topology running STP, every network segment has a single ______________ port, which is the port on that segment that is closest to the root bridge, in terms of cost.

Root

Root

Designated

Designated

Nondesignated

Nondesignated

Nonroot

Nonroot

#7. What is the IEEE standard for link aggregation?

802.1Q

802.1Q

802.3ad

802.3ad

802.1d

802.1d

802.3af

802.3af

#8. What is the maximum amount of power a switch is allowed to provide per port according to the IEEE 802.3af standard?

7.7 W

7.7 W

15.4 W

15.4 W

26.4 W

26.4 W

32.4 W

32.4 W

#9. What switch feature allows you to connect a network sniffer to a switch port and tells the switch to send a copy of frames seen on one port out the port to which your network sniffer is connected?

Port interception

Port interception

Port duplexing

Port duplexing

Port mirroring

Port mirroring

Port redirect

Port redirect

#10. Which IEEE 802.1X component checks the credentials of a device wanting to gain access to the network?

Supplicant

Supplicant

Authentication server

Authentication server

Access point

Access point

Authenticator

Authenticator

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