easyMultiple Choice
350-401 Practice Question: Runs the following command on Router R9: R9# show…
A network engineer runs the following command on Router R9:
R9# show mpls ldp bindings 10.9.9.0 255.255.255.0
lib entry: 10.9.9.0/24, rev 10 local binding: label: 22 remote binding: lsr: 10.9.9.1:0, label: 23 remote binding: lsr: 10.9.9.2:0, label: 24 remote binding: lsr: 10.9.9.3:0, label: 25
Based on this output, how many remote LDP peers have advertised a label for the prefix 10.9.9.0/24?
⚠ Common exam trap
The trap here is that candidates often mistakenly count the local binding as a remote peer, leading them to select 4 instead of 3, because they overlook the distinction between 'local binding' and 'remote binding' in the command output.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
3
The output shows three remote bindings, each from a different LSR (10.9.9.1:0, 10.9.9.2:0, and 10.9.9.3:0), advertising a label for the prefix 10.9.9.0/24. The local binding (label 22) is not a remote peer, so only the three remote entries count. Therefore, the correct answer is 3.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
1
Why it's wrong here
Answering 1 would indicate only a single remote binding was seen in the output, but that is incorrect because the MPLS LDP binding table for this router clearly shows three separate remote label advertisements from three distinct LSRs. The line for 10.9.9.1:0 is only one of the remote entries; ignoring the 10.9.9.2:0 and 10.9.9.3:0 entries would be a misreading of the command output.
- ✗
2
Why it's wrong here
Option 2 is wrong because there are not just two remote bindings; a careful count of the remote label advertisements in the output shows three. The presence of three remote LSRs—10.9.9.1, 10.9.9.2, and 10.9.9.3—each with a label-space identifier of :0, confirms that the remote binding count is three, not two. This could be confused if one only counted the IPv4-specific label entries, but in this case all three remote entries are explicitly listed.
- ✓
3
Why this is correct
This is the correct answer. The MPLS LDP binding output lists exactly three remote label bindings, each originating from a different LSR: 10.9.9.1:0, 10.9.9.2:0, and 10.9.9.3:0. These are remote because they are label bindings learned from peer LSRs via LDP, as opposed to the local binding the router itself advertises. The count of three remote entries directly answers the question, so option 3 is correct.
- ✗
4
Why it's wrong here
Option 4 confuses the total number of label bindings with the number of remote bindings. While it is true that there are four total entries (one local binding and three remote bindings), the question specifically asks for the count of remote bindings, which is three. The local binding, typically identified by the router's own LSR ID, should not be included in the remote count, so stating 'total four' or mentioning 'only three remote peers' in this way does not directly answer the question and implies an erroneous total count.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.