200-301 practice questions 571–580

1. Question 571 · 1334 in bank

   

   Refer to the exhibit. The EtherChannel is configured with a speed of 1000 and duplex as full on both ends of channel group 1. What is the next step to configure the channel on switch A to respond to but not initiate LACP communication?

   • Ainterface range gigabitethernet0/0/0-15 channel-group 1 mode on
   • Binterface range gigabitethernet0/0/0-15 channel-group 1 mode desirable
   • Cinterface port-channel 1 channel-group 1 mode auto
   • Dinterface port-channel 1 channel-group 1 mode passive

   Show answer

   Answer: D

   Explanation

   Mode Passive: The mode places a port into a passive negotiating state, in which the port RESPONDS to LACP packets that it receives, but DOES NOT initiate protocol negotiation.

   Source: Adapted from community discussion — laurvy36

   References

   • Cisco documentation

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2. Question 572 · 1334 in bank

   DRAG DROP - Drag and drop the descriptions of file-transfer protocols from the left onto the correct protocols on the right. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   The current ordering is incorrect. The correct answers are: FTP uses ports 20 and 21 over TCP by default and is more reliable for loading IOS images TFTP uses port 69 and UDP by default and does not require user credentials TFTP is aptly named for being trivial to configure and use. It is less reliable and you may often see failures or bad hashes when loading files or images instead of using FTP.

   Source: Adapted from community discussion — Request7108

   

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3. Question 573 · 1334 in bank

   What is the difference regarding reliability and communication type between TCP and UDP?

   • ATCP is reliable and is a connectionless protocol; UDP is not reliable and is a connection-oriented protocol.
   • BTCP is not reliable and is a connectionless protocol; UDP is reliable and is a connection-oriented protocol.
   • CTCP is not reliable and is a connection-oriented protocol; UDP is reliable and is a connectionless protocol.
   • DTCP is reliable and is a connection-oriented protocol; UDP is not reliable and is a connectionless protocol.

   Show answer

   Answer: D

   Explanation

   Ref: Difference between TCP and UDP: Comparison in 2022 - IP With Ease “… Key points of difference between TCP and UDP … • TCP is the connection-oriented protocol while UDP is connectionless protocol. • TCP is more reliable than UDP. …” A. TCP is reliable and is a connectionless protocol; UDP is not reliable and is a connection-oriented protocol. Wrong answer. B. TCP is not reliable and is a connectionless protocol; UDP is reliable and is a connection-oriented protocol. Wrong answer. C. TCP is not reliable and is a connection-oriented protocol; UDP is reliable and is a connectionless protocol. Wrong answer. D. TCP is reliable and is a connection-oriented protocol; UDP is not reliable and is a connectionless protocol. Correct answer.

   Source: Adapted from community discussion — [Removed]

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4. Question 574 · 1334 in bank

   Which command entered on a switch configured with Rapid PVST+ listens and learns for a specific time period?

   • Aswitch(config)#spanning-tree vlan 1 priority 4096
   • Bswitch(config)#spanning-tree vlan 1 hello-time 10
   • Cswitch(config)#spanning-tree vlan 1 max-age 6
   • Dswitch(config)#spanning-tree vlan 1 forward-time 20

   Show answer

   Answer: D

   Explanation

   The answer is D, folks. To quote the Official Certification Guide Volume 1 Page 612: Max Age -> "How long any switch should wait, after ceasing to hear Hellos, before trying to change the STP topology. Forward Delay -> "Delay that affects the process that occurs when an interface changes from blocking state to forwarding state. A port stays in an interim listening state, and then an interim learning state, for the number of seconds defined by the forward delay timer." Now, looking at official Cisco docs, we can see the command to change the forward delay time is indeed "forward-time". https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/12-2/15-02SG/configuration/guide/config/spantree.html#56177

   Source: Adapted from community discussion — [Removed]

   References

   • Cisco documentation
   • Cisco documentation
   • Cisco documentation

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5. Question 575 · 1334 in bank

   What must a network administrator consider when deciding whether to configure a new wireless network with APs in autonomous mode or APs running in cloud- based mode?

   • AAutonomous mode APs are less dependent on an underlay but more complex to maintain than APs in cloud-based mode.
   • BCloud-based mode APs relay on underlays and are more complex to maintain than APs in autonomous mode.
   • CCloud-based mode APs are easy to deploy but harder to automate than APs in autonomous mode.
   • DAutonomous mode APs are easy to deploy and automate than APs in cloud-based mode.

   Show answer

   Answer: A

   Explanation

   typical voodo question of cisco: autonomous AP require a network infrastructure (underlay) to function, but not to the same degree as AP since they don't use CAPWAP, they don't rely on central controller and require more knowledge to maintain (complexity). the other answer don't seem that incorrect to me, but option A is the more correct.

   Source: Adapted from community discussion — [Removed]

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6. Question 576 · 1334 in bank

   When a switch receives a frame for an unknown destination MAC address, how is the frame handled?

   • Aflooded to all ports except the origination port
   • Bforwarded to the first available port
   • Cbroadcast to all ports on the switch
   • Dinspected and dropped by the switch

   Show answer

   Answer: A

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7. Question 577 · 1334 in bank

   Which state is bypassed in Rapid PVST+ when PortFast is enabled on a port?

   • Ablocking
   • Bforwarding
   • Clearning
   • Ddiscarding

   Show answer

   Answer: C

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8. Question 578 · 1334 in bank

   What happens when a switch receives a frame with a destination MAC address that recently aged out?

   • AThe switch floods the frame to all ports in all VLANs except the port that received the frame.
   • BThe switch floods the frame to all ports in the VLAN except the port that received the frame.
   • CThe switch references the MAC address aging table for historical addresses on the port that received the frame.
   • DThe switch drops the frame and learns the destination MAC address again from the port that received the frame.

   Show answer

   Answer: B

   Explanation

   question is trying to trick you. It's still asking about an unknown destination MAC address essentially. Answer given is correct

   Source: Adapted from community discussion — DoBronx

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9. Question 579 · 1334 in bank

   What is a function of store-and forward switching?

   • AIt reduces latency by eliminating error checking within the frame
   • BIt produces an effective level of error-free network traffic using CRCs.
   • CIt buffers frames and forwards regardless of errors within the frames.
   • DIt forwards a frame by checking only the destination MAC address

   Show answer

   Answer: B

   Explanation

   store and forward: checks the whole frame frament free mode: checks the first 64 byte (no crc) cut through: checks only the destination

   Source: Adapted from community discussion — [Removed]

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10. Question 580 · 1334 in bank

    

    Refer to the exhibit. Switch AccSw1 has just been added to the network along with PC2. All VLANs have been implemented on AccSw2. How must the ports on AccSw2 be configured to establish Layer 2 connectivity between PC1 and PC2?

    • Ainterface GigabitEthernet1/2 switchport mode access switchport access vlan 2 ! interface GigabitEthernet1/24 switchport mode trunk
    • Binterface GigabitEthernet1/1 switchport mode access switchport access vlan 11 ! interface GigabitEthernet1/24 switchport mode trunk
    • Cinterface GigabitEthernet1/24 switchport mode trunk switchport trunk allowed vlan 11, 12 ! interface GigabitEthernet1/1 switchport access vlan 11
    • Dinterface GigabitEthernet1/2 switchport mode access switchport access vlan 12 ! interface GigabitEthernet1/24 switchport mode trunk switchport trunk allowed vlan 11, 12

    Show answer

    Answer: B

    Explanation

    I imagine that the confusion is the "switchport trunk allowed VLAN 11, 12" command in option C. Please note that this just a distraction. As you may have learnt already when you apply the "switchport mode trunk" on an interface it allows all VLANs by default. So by using this command in option B all VLANs 1 - 4094 are allowed over the trunk. For security reasons, during our network design we tend to remove all vlans and only allow the vlans we desire. If we apply the command in option C "switchport trunk allowed VLAN 11, 12" it would delete all vlans and only allow VLANs 11 and 12. This means that all other devices or departments who are dependent on this trunk will be cut-off. One of the biggest blunders sometimes made by beginners is to delete an entire VLAN by overwriting it. Always remember to use the "add" command when adding new VLANs to a trunk already configured for other VLANs.

    Source: Adapted from community discussion — [Removed]

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200-301 practice, question 571. 1334 questions available.