I really see people with 0 xp in real working env.....
the the question asks which two actions - one OR the other... even if you exclude answers you end up with - dynamic desirable and static trunk... stop misleading the people ...
The question is completely broken. SW1 cannot be dynamic auto and nonegotiate:
(config-if)#switchport nonegotiate
Command rejected: Conflict between 'nonegotiate' and 'dynamic' status.
So then we do not know what they intended it to be. Either SW1 is supposed to be administrative mode dynamic auto with negotiation turned on, or it is supposed to be administrative mode trunk with negotiation turned off. If we assume auto then it will be DE if we assume it is turned off then only D works. So it must be that negotiation is supposed to be turned on in SW1, or the answers have a typo.
Look at SW1: it is dynamic auto AND also Negotiation off - no such thing!!!!!!!!
By default it is dynamic auto, then you can NOT disable negotiation. Unless you static it to trunk, then you can disable negotiation.
Command rejected: Conflict between 'nonegotiate' and 'dynamic' status.
SW1's negotiation of trunking is set to off. This means SW1 will operate in its current operational mode (trunk) without participating in DTP.
Given that SW1 won't participate in DTP, it is appropriate to set SW2's mode of trunking negotiation to 'nonegotiate.' Finally, to successfully establish a trunk link between the two switches we need to explicitly set SW1's port to 'trunk.' `Dynamic desirable` mode only works if the other side can exchange DTP frames, which is not the case in our scenario.
Current Community vote distribution (2024-07-15):
DE (35%)
BE (27%)
BD (25%)
AE (10%)
75% of people agree with answer E. Correct: desirable/auto = trunk
60% of people agree with answer D. Correct: trunk/auto = trunk
52% of people agree with answer B. Wrong: encapsulation is already dot1q
10% of people agree with answer A. Wrong: negotiation is already disabled
The output is confusing, because both sides have 'dynamic auto' configured and the operational mode is 'trunk'. You would expect both sides won't initiate to become a trunk and this results in operational mode 'static access'.
D and E should be correct, but only when choosing one of these at the same time.
ANSWER(D,E)
The issue between SW1 and SW2 lies in the trunk negotiation mode. The administrative mode on both switches is set to "dynamic auto," which means that neither switch actively attempts to form a trunk; they both wait for the other side to initiate.
Answer D doesn't seem to be valid. According to network lessons when "administrative trunking encapsulation" is set to negotiate(can be seen on SW2) switchport mode trunk will return error:
SW2(config-if)#switchport mode trunk
Command rejected: An interface whose trunk encapsulation is "Auto" can not be configured to "trunk" mode.
I would go with provided BE but i cant say i am fully onboard with B
Given answers are incorrect
The answers for this ques are actually provided like this:
A. configure no switchport nonegotiate on SW1
B. configure switchport nonegotiate on SW2
C. configure switchport mode access on SW2
D. configure switchport mode trunk on SW2
E. configure switchport mode dynamic desirable on SW2
look at the difference in A
The switchport nonegotiate command disables DTP negotiation
The no switchport nonegotiate command enables DTP negotiation
SW1 Negotiation Off, which prevents DTP negotiation packets from being sent out the interface.
So we need to re-enable it with the “no switchport nonegotiate” command.
so the answers for the prvided answers above are A & E
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Community vote distribution
A (35%)
C (25%)
B (20%)
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