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SPAN Questions 2

November 18th, 2019 in SWITCH 300-115 Go to comments

Question 1

Question 2

Question 3

Explanation

A physical port that belongs to an EtherChannel group can be configured as a SPAN source port and still be a part of the EtherChannel. In this case, data from the physical port is monitored as it participates in the EtherChannel. However, if a physical port that belongs to an EtherChannel group is configured as a SPAN destination, it is removed from the group.

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_55_se/configuration/guide/3750xscg/swspan.html

Question 4

Explanation

Remote SPAN (RSPAN) is used when source ports are not located on the same switch as the Destination port. RSPAN is an advanced feature that requires a special VLAN to carry the monitored traffic and is not supported by all switches.

The Configuring SPAN and RSPAN link (http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_40_se/configuration/guide/scg/swspan.pdf) mentions about two things:

+ We recommend that you configure an RSPAN VLAN before you configure an RSPAN source or a destination session.
+ First create a new VLAN to be the RSPAN VLAN for the RSPAN session

But this question asks about “Cisco recommendation” so answer C is the better one.

Question 5

Question 6

Explanation

The RSPAN VLAN carries SPAN traffic between RSPAN source and destination sessions. It has these special characteristics:
+ All traffic in the RSPAN VLAN is always flooded.
+ No MAC address learning occurs on the RSPAN VLAN.
+ RSPAN VLAN traffic only flows on trunk ports.
+ RSPAN VLANs must be configured in VLAN configuration mode by using the remote-span VLAN configuration mode command.
+ STP can run on RSPAN VLAN trunks but not on SPAN destination ports.
+ An RSPAN VLAN cannot be a private-VLAN primary or secondary VLAN.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750e_3560e/software/release/12-2_55_se/configuration/guide/3750escg/swspan.pdf

Question 7

Explanation

RSPAN extends SPAN by enabling remote monitoring of multiple switches across your network. The traffic for each RSPAN session is carried over a user-specified RSPAN VLAN that is dedicated for that RSPAN session in all participating switches (therefore answer B is correct). The SPAN traffic from the sources is copied onto the RSPAN VLAN through a reflector port and then forwarded over trunk ports that are carrying the RSPAN VLAN to any RSPAN destination session monitoring the RSPAN VLAN.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_11_yj4/configuration/guide/lrescg/swspan.html

The RSPAN VLAN carries SPAN traffic between RSPAN source and destination sessions. One of the special characteristics is “No MAC address learning occurs on the RSPAN VLAN”.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750e_3560e/software/release/12-2_55_se/configuration/guide/3750escg/swspan.pdf

Question 8

Explanation

A destination port has these characteristics:

+ …
+ It does not participate in any of the Layer 2 protocols (STP, VTP, CDP, DTP, PagP).

Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_55_se/configuration/guide/3750xscg/swspan.html

Question 9

Explanation

The RSPAN VLAN carries SPAN traffic between RSPAN source and destination sessions. It has these special characteristics:
+ All traffic in the RSPAN VLAN is always flooded.
+ No MAC address learning occurs on the RSPAN VLAN.
+ RSPAN VLAN traffic only flows on trunk ports.
+ RSPAN VLANs must be configured in VLAN configuration mode by using the remote-span VLAN configuration mode command.
+ STP can run on RSPAN VLAN trunks but not on SPAN destination ports.
+ An RSPAN VLAN cannot be a private-VLAN primary or secondary VLAN.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750e_3560e/software/release/12-2_55_se/configuration/guide/3750escg/swspan.pdf

Question 10

Comments
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  1. ?!?
    February 24th, 2019

    That are some shitty questions

  2. network4career
    March 10th, 2019

    SPAN sessions allow you monitor traffic from 1/or more ports/vlans and send to 1/or more destination ports.
    RSPAN has the same concepts with R is stand for “remote” which means monitor source and destination are not on same SW. (must has RVLAN to do this).
    Hope this helps.
    ========
    Lasted valid dumps 2019, contact: network4career(at)gmail(dot)com.

  3. RIGAN
    March 26th, 2019

    Mr, network4career this is free site ,, so please do not demand money for dump. and requesting to not share such post that you have dumps and it’s free.. this site is not commercial sites.

  4. Anonymous
    April 17th, 2019

    Hello Why question 1 and 7 different answers. Why the answer in Q1 not A?

  5. Anonymous
    April 24th, 2019

    q10

    Which statement about SPAN is true?
    A. It is an industry-standard protocol for mirroring traffic
    B. SPAN destinations participate in spanning-tree instances
    C. It uses a specific VLAN to transfer mirrored traffic
    D. It mirrors traffic from a source port to a destination port on the same switch only
    E. SPAN destinations also can be SPAN sources

    Why D? Only one SW>?

  6. Anonymous
    April 24th, 2019

    Q10 is true sorry talks about SPAN not RSPAN!

  7. tradee
    June 23rd, 2019

    Q2 answer B should be correct.
    If A would be correct then B also so the only options is A I think.

  8. Dmytro
    September 10th, 2019

    Q1 and Q7 have a different answers…

    In Q1 variant “RSPAN VLAN carries only RSPAN traffic”, But in Q7 variant “RSPAN VLANs can carry RSPAN traffic only.” is right.
    So, where is a truth?

  9. Dmytro
    September 10th, 2019

    In addition, Q7 has a variant “D. RSPAN VLANs are exempt from VTP pruning.” and I think this varian is right;
    You can read more about it: “If you enable VLAN Trunking Protocol (VTP) and VTP pruning, RSPAN traffic is pruned in the trunks to prevent the unwanted flooding of RSPAN traffic across the network.”
    https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4000/8-2glx/configuration/guide/span.html

  10. Dmytro
    September 10th, 2019

    Oh, no Q7 variant D isn’t right. Not my day today…

  11. Joseph
    December 5th, 2019

    Q1 and Q7

    https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12-2_55_se/configuration/guide/3750xscg/swspan.html

    RSPAN VLAN

    The RSPAN VLAN carries SPAN traffic between RSPAN source and destination sessions. It has these special characteristics:

    All traffic in the RSPAN VLAN is always flooded.
    No MAC address learning occurs on the RSPAN VLAN.
    RSPAN VLAN traffic only flows on trunk ports.
    RSPAN VLANs must be configured in VLAN configuration mode by using the remote-span VLAN configuration mode command.
    STP can run on RSPAN VLAN trunks but not on SPAN destination ports.
    An RSPAN VLAN cannot be a private-VLAN primary or secondary VLAN.

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