What term is used to describe the process where one frame is placed into a different type of frame?（）A、FramingB、De-encapsulationC、EncapsulationD、De-framingE、None of the above

题目

What term is used to describe the process where one frame is placed into a different type of frame?（）

A、Framing
B、De-encapsulation
C、Encapsulation
D、De-framing
E、None of the above

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相似问题和答案

第1题：

In the Ezonexam switched LAN environment, what does the IEEE 802.1Q standard describe?

A. VLAN pruning

B. A method of VLAN trunking

C. An approach to wireless LAN communication

D. The operation of VTP

E. The process for root bridge selection

F. None of the above

正确答案：B
B 解析：Explanation:
A broadcast domain must sometimes exist on more than one switch in the network. To accomplish this, one switch must send frames to another switch and indicate which VLAN a particular frame. belongs to. On Cisco switches, a trunk link is created to accomplish this VLAN identification. ISL and IEEE 802.1Q are different methods of putting a VLAN identifier in a Layer 2 frame.

The IEEE 802.1Q protocol interconnects VLANs between multiple switches, routers, and servers. With 802.1Q, a network administrator can define a VLAN topology to span multiple physical devices. Cisco switches support IEEE 802.1Q for FastEthernet and Gigabit Ethernet interfaces. An 802.1Q trunk link provides VLAN identification by adding a 4-byte tag to an Ethernet Frame. as it leaves a trunk port.

第2题：

One type of frame switching uses low－latency forwarding and then switches to a higher－latency error checking mode when an error threshold is exceeded. What is the name of this frame switching mode?()

A. store and forward

B. fragment-free

C. adaptive cut-through

D. fast-forward

参考答案：C

第3题：

() is a term used to describe the anxiety and feelings (of surprise, disorientation, confusion, etc.) felt when people have to operate within an entirely different cultural or social environment, such as a different country or a different state than where they live.

A、Cultural shock

B、Culture surprise

C、Acculturation

D、Unsuccessful communication

参考答案：A

第4题：

You are trying to bring up a new Testking location onto your existing frame relay network. The new location is using an Adtran router and you are having difficulties getting the site to connect via frame to your Cisco HQ router. What is the most likely cause of the problem?（）

A. Mismatched LMI types.

B. Incompatible encapsulation types.

C. Mismatching IP addresses.

D. Incorrect DLCI.

E. None of the above

参考答案：B

第5题：

What term is used to describe the process where one frame is placed into a different type of frame?()

A. Framing

B. De-encapsulation

C. Encapsulation

D. De-framing

E. None of the above

参考答案：C

第6题：

●When a bridge transmits an Ethernet frame, the Ethernet frame. has(75).

(75)

A. the broadcast address for the its source address

B. the bridge's LAN address for its destination address

C. the bridge's LAN address for its source address

D. none of the above

正确答案：D

第7题：

A PC on a network segment sends data to another PC on a different segment.Which of the following correctly describe the correct order of how this data will be encapsulated?()

A. Data, Frame, Packet, Segment, Bit

B. Data, Frame, Segment, Packet, Bit

C. Data, Packet, Frame, Segment, Bit

D. Data, Packet, Segment, Frame, Bit

E. Data, Segment, Frame, Packet, Bit

F. Data, Segment, Packet, Frame, Bit

参考答案：F

第8题：

A Ezonexam Ethernet switch receives a unicast frame. with a destination MAC that is listed in the switch table. What will this switch do with the frame?

A. The switch will forward the frame. to a specific port

B. The switch will forward the frame. to all ports except the port on which it was received

C. The switch will return a copy of the frame. out the source port

D. The switch will not forward unicast frames

E. The switch will remove the destination MAC from the switch table

F. None of the above.

正确答案：A
A 解析：Explanation:
How Does the Switch Find Host MACs?
Let's use the diagram below to help us understand how address learning process takes place.

Let's assume that we have just powered on the switch. It has nothing in its MAC table. We connect the cables from the hosts on the switch interfaces as shown in the diagram. Host A initiates a connection towards Host D, and the following takes place:
1. Host A (interface fe0/0) sends a frame. to Host D (MAC address:0000.43c5.334c).

2. The switch inspects the Source Address in the frame. and notes in its table the MAC address of Host A along with the Interface number from which the frame. originated.

3. The switch inspects the Destination Address in the frame. Since it does not have Hosts D MAC address in its table, it constructs a broadcast frame. and forwards out all interfaces except the interface from where the original frame. arrived.

4. Host D identifies itself as the expected recipient and responds back to Host A. The switch receives the respond frame. on interface fe0/11 and places the SA in its table along with the interface number where the frame. came from.

5. From now on, further communication between the two hosts will be switched to the appropriate interfaces based on the MAC tables entries.

This process takes place every time a new host is attached on the switch and initiates traffic. The switch tries to keep its MAC table up-to-date, therefore if some hosts do not initiate traffic for a certain amount of time, the switch removes them from its table and reinserts them when they begin sending traffic.

第9题：

What does a Layer 2 switch do if it receives a frame with a destination MAC address that is not found in its MAC address table?()

A. The frame is dropped.

B. The frame is addressed with a broadcast MAC address and sent out all ports.

C. The frame is sent out all ports except the receiving port.

D. An ARP request is sent out all ports except the receiving port.

E. A destination unreachable message is sent back to the source address.

F. None of the above.

参考答案：C

第10题：

While troubleshooting a serial line problem, you enable ppp authentication debugging as shown below:Based on the command output above, what type of ‘handshake‘ was used for PPP authentication?()

A. one-way

B. two-way

C. three-way

D. four-way

E. no handshakes required during authentication

F. None of the above

参考答案：C

What term is used to describe the process where one frame is placed into a different type of frame?（）A、FramingB、De-encapsulationC、EncapsulationD、De-framingE、None of the above

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