Ethernet Search

Q:

Ethernet system uses which of the following technology?

A) Ring	B) Bus
C) Star	D) Tree

Answer & Explanation Answer: B) Bus

Explanation:

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Filed Under: Computer
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Q:

Ethernet uses which topology

A) Star	B) Bus
C) Twisted pair	D) Both B & C

Answer & Explanation Answer: B) Bus

Explanation:

Ethernet uses Bus topology.

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Filed Under: Networking
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Q:

Which command will configure a switch port to use the IEEE standard method of inserting VLAN membership information into Ethernet frames?

A) Switch (config) #switchport trunk encapsulation ietf	B) Switch (config) #switchport trunk encapsulation dot1q
C) Switch (config-if) #switchport trunk encapsulation ietf	D) Switch (config-if) #switchport trunk encapsulation dot1q

Answer & Explanation Answer: D) Switch (config-if) #switchport trunk encapsulation dot1q

Explanation:

If you are on a 2950 switch, then the interface command is just swichport mode trunk since the 2050 can only run the IEEE 802.1q version. However, a 3550 can run both ISL and 802.1q, so you must also use the encapsulation command. The argument to choose 802.1q for a trunking protocol is dot1q.

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Filed Under: CCNA

Q:

Differentiate types of Ethernet cabling and identify their proper application?

Answer

The three types of cables that can be created from an Ethernet cable are straight-through (to connect a PC's or a router's Ethernet interface to a hub or switch), crossover (to connect hub to hub , hub to switch, switch to switch, or PC to PC), and rolled (for a console conection from a PC to a router or switch).

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Subject: CCNA

Q:

Identify the fields in the Data Link portion of an Ethernet frame?

Answer

The fields in the Data Link portion of a frame include the Preamble, Start Frame Delimiter, Destination MAC address, Source MAC address, Length or Type, Data, and Frame Check Sequence.

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Subject: CCNA

Q:

Which of the following connection mechanism is used by Ethernet?

A) Token passing	B) CSMA/CD
C) CSMA/CA	D) Host polling

Answer & Explanation Answer: B) CSMA/CD

Explanation:

Ethernet networking uses Carrier Sense Multiple Access with Collision Detection (CSMA/CD), a protocol that helps devices share the bandwidth evenly without having two devices transmit at the same time on the network medium.

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Q:

Routers operate at layer _____. LAN switches operate at layer ______. Ethernet hubs operate at layer _____. Word processing operates at layer _______.

A) 3, 3, 1, 7	B) 3, 2, 1, none
C) 3, 2, 1, 7	D) 3, 3, 2, none

Answer & Explanation Answer: B) 3, 2, 1, none

Explanation:

Routers operate at layer 3. LAN switches operate at layer 2. Ethernet hubs operate at layer 1. Word processing applications communicate to the Application layer interface, but do not operate at layer 7, so the answer would be none.

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Q:

What are 10Base2, 10Base5 and 10BaseT Ethernet LANs

Answer

10Base2—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband

signaling, with a contiguous cable segment length of 100

meters and a maximum of 2 segments.

10Base5—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband

signaling, with 5 continuous segments not exceeding 100

meters per segment.

10BaseT—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband

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